/* This file defines standard ELF types, structures, and macros.
- Copyright (C) 1995-2003,2004,2005,2006,2007,2008
- Free Software Foundation, Inc.
+ Copyright (C) 1995-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#ifndef _ELF_H
#define _ELF_H 1
+/* #include <features.h> */
+
+/* __BEGIN_DECLS */
+
/* Standard ELF types. */
#include <stdint.h>
#define ELFOSABI_SYSV 0 /* Alias. */
#define ELFOSABI_HPUX 1 /* HP-UX */
#define ELFOSABI_NETBSD 2 /* NetBSD. */
-#define ELFOSABI_LINUX 3 /* Linux. */
+#define ELFOSABI_GNU 3 /* Object uses GNU ELF extensions. */
+#define ELFOSABI_LINUX ELFOSABI_GNU /* Compatibility alias. */
#define ELFOSABI_SOLARIS 6 /* Sun Solaris. */
#define ELFOSABI_AIX 7 /* IBM AIX. */
#define ELFOSABI_IRIX 8 /* SGI Irix. */
#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX. */
#define ELFOSABI_MODESTO 11 /* Novell Modesto. */
#define ELFOSABI_OPENBSD 12 /* OpenBSD. */
+#define ELFOSABI_ARM_AEABI 64 /* ARM EABI */
#define ELFOSABI_ARM 97 /* ARM */
#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */
#define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */
#define EM_XTENSA 94 /* Tensilica Xtensa Architecture */
-#define EM_NUM 95
+#define EM_AARCH64 183 /* ARM AARCH64 */
+#define EM_TILEPRO 188 /* Tilera TILEPro */
+#define EM_MICROBLAZE 189 /* Xilinx MicroBlaze */
+#define EM_TILEGX 191 /* Tilera TILE-Gx */
+#define EM_NUM 192
/* If it is necessary to assign new unofficial EM_* values, please
pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the
#define STB_WEAK 2 /* Weak symbol */
#define STB_NUM 3 /* Number of defined types. */
#define STB_LOOS 10 /* Start of OS-specific */
+#define STB_GNU_UNIQUE 10 /* Unique symbol. */
#define STB_HIOS 12 /* End of OS-specific */
#define STB_LOPROC 13 /* Start of processor-specific */
#define STB_HIPROC 15 /* End of processor-specific */
#define STT_TLS 6 /* Symbol is thread-local data object*/
#define STT_NUM 7 /* Number of defined types. */
#define STT_LOOS 10 /* Start of OS-specific */
+#define STT_GNU_IFUNC 10 /* Symbol is indirect code object */
#define STT_HIOS 12 /* End of OS-specific */
#define STT_LOPROC 13 /* Start of processor-specific */
#define STT_HIPROC 15 /* End of processor-specific */
Elf64_Xword p_align; /* Segment alignment */
} Elf64_Phdr;
+/* Special value for e_phnum. This indicates that the real number of
+ program headers is too large to fit into e_phnum. Instead the real
+ value is in the field sh_info of section 0. */
+
+#define PN_XNUM 0xffff
+
/* Legal values for p_type (segment type). */
#define PT_NULL 0 /* Program header table entry unused */
#define NT_LWPSTATUS 16 /* Contains copy of lwpstatus struct */
#define NT_LWPSINFO 17 /* Contains copy of lwpinfo struct */
#define NT_PRFPXREG 20 /* Contains copy of fprxregset struct */
+#define NT_SIGINFO 0x53494749 /* Contains copy of siginfo_t,
+ size might increase */
+#define NT_FILE 0x46494c45 /* Contains information about mapped
+ files */
#define NT_PRXFPREG 0x46e62b7f /* Contains copy of user_fxsr_struct */
#define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
#define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */
+#define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
#define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */
+#define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */
+#define NT_X86_XSTATE 0x202 /* x86 extended state using xsave */
+#define NT_S390_HIGH_GPRS 0x300 /* s390 upper register halves */
+#define NT_S390_TIMER 0x301 /* s390 timer register */
+#define NT_S390_TODCMP 0x302 /* s390 TOD clock comparator register */
+#define NT_S390_TODPREG 0x303 /* s390 TOD programmable register */
+#define NT_S390_CTRS 0x304 /* s390 control registers */
+#define NT_S390_PREFIX 0x305 /* s390 prefix register */
+#define NT_S390_LAST_BREAK 0x306 /* s390 breaking event address */
+#define NT_S390_SYSTEM_CALL 0x307 /* s390 system call restart data */
+#define NT_S390_TDB 0x308 /* s390 transaction diagnostic block */
+#define NT_ARM_VFP 0x400 /* ARM VFP/NEON registers */
+#define NT_ARM_TLS 0x401 /* ARM TLS register */
+#define NT_ARM_HW_BREAK 0x402 /* ARM hardware breakpoint registers */
+#define NT_ARM_HW_WATCH 0x403 /* ARM hardware watchpoint registers */
/* Legal values for the note segment descriptor types for object files. */
#define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */
#define DF_1_DISPRELDNE 0x00008000 /* Disp reloc applied at build time. */
#define DF_1_DISPRELPND 0x00010000 /* Disp reloc applied at run-time. */
+#define DF_1_NODIRECT 0x00020000 /* Object has no-direct binding. */
+#define DF_1_IGNMULDEF 0x00040000
+#define DF_1_NOKSYMS 0x00080000
+#define DF_1_NOHDR 0x00100000
+#define DF_1_EDITED 0x00200000 /* Object is modified after built. */
+#define DF_1_NORELOC 0x00400000
+#define DF_1_SYMINTPOSE 0x00800000 /* Object has individual interposers. */
+#define DF_1_GLOBAUDIT 0x01000000 /* Global auditing required. */
+#define DF_1_SINGLETON 0x02000000 /* Singleton symbols are used. */
/* Flags for the feature selection in DT_FEATURE_1. */
#define DTF_1_PARINIT 0x00000001
} a_un;
} Elf64_auxv_t;
-/* Legal values for a_type (entry type). */
-
-#define AT_NULL 0 /* End of vector */
-#define AT_IGNORE 1 /* Entry should be ignored */
-#define AT_EXECFD 2 /* File descriptor of program */
-#define AT_PHDR 3 /* Program headers for program */
-#define AT_PHENT 4 /* Size of program header entry */
-#define AT_PHNUM 5 /* Number of program headers */
-#define AT_PAGESZ 6 /* System page size */
-#define AT_BASE 7 /* Base address of interpreter */
-#define AT_FLAGS 8 /* Flags */
-#define AT_ENTRY 9 /* Entry point of program */
-#define AT_NOTELF 10 /* Program is not ELF */
-#define AT_UID 11 /* Real uid */
-#define AT_EUID 12 /* Effective uid */
-#define AT_GID 13 /* Real gid */
-#define AT_EGID 14 /* Effective gid */
-#define AT_CLKTCK 17 /* Frequency of times() */
-
-/* Some more special a_type values describing the hardware. */
-#define AT_PLATFORM 15 /* String identifying platform. */
-#define AT_HWCAP 16 /* Machine dependent hints about
- processor capabilities. */
-
-/* This entry gives some information about the FPU initialization
- performed by the kernel. */
-#define AT_FPUCW 18 /* Used FPU control word. */
-
-/* Cache block sizes. */
-#define AT_DCACHEBSIZE 19 /* Data cache block size. */
-#define AT_ICACHEBSIZE 20 /* Instruction cache block size. */
-#define AT_UCACHEBSIZE 21 /* Unified cache block size. */
-
-/* A special ignored value for PPC, used by the kernel to control the
- interpretation of the AUXV. Must be > 16. */
-#define AT_IGNOREPPC 22 /* Entry should be ignored. */
-
-#define AT_SECURE 23 /* Boolean, was exec setuid-like? */
-
-#define AT_EXECFN 31 /* Filename of executable. */
-
-/* Pointer to the global system page used for system calls and other
- nice things. */
-#define AT_SYSINFO 32
-#define AT_SYSINFO_EHDR 33
-
-/* Shapes of the caches. Bits 0-3 contains associativity; bits 4-7 contains
- log2 of line size; mask those to get cache size. */
-#define AT_L1I_CACHESHAPE 34
-#define AT_L1D_CACHESHAPE 35
-#define AT_L2_CACHESHAPE 36
-#define AT_L3_CACHESHAPE 37
-
+/* #include <bits/auxv.h> */
/* Note section contents. Each entry in the note section begins with
a header of a fixed form. */
The descriptor consists of any nonzero number of bytes. */
#define NT_GNU_BUILD_ID 3
+/* Version note generated by GNU gold containing a version string. */
+#define NT_GNU_GOLD_VERSION 4
+
/* Move records. */
typedef struct
#define R_68K_GLOB_DAT 20 /* Create GOT entry */
#define R_68K_JMP_SLOT 21 /* Create PLT entry */
#define R_68K_RELATIVE 22 /* Adjust by program base */
+#define R_68K_TLS_GD32 25 /* 32 bit GOT offset for GD */
+#define R_68K_TLS_GD16 26 /* 16 bit GOT offset for GD */
+#define R_68K_TLS_GD8 27 /* 8 bit GOT offset for GD */
+#define R_68K_TLS_LDM32 28 /* 32 bit GOT offset for LDM */
+#define R_68K_TLS_LDM16 29 /* 16 bit GOT offset for LDM */
+#define R_68K_TLS_LDM8 30 /* 8 bit GOT offset for LDM */
+#define R_68K_TLS_LDO32 31 /* 32 bit module-relative offset */
+#define R_68K_TLS_LDO16 32 /* 16 bit module-relative offset */
+#define R_68K_TLS_LDO8 33 /* 8 bit module-relative offset */
+#define R_68K_TLS_IE32 34 /* 32 bit GOT offset for IE */
+#define R_68K_TLS_IE16 35 /* 16 bit GOT offset for IE */
+#define R_68K_TLS_IE8 36 /* 8 bit GOT offset for IE */
+#define R_68K_TLS_LE32 37 /* 32 bit offset relative to
+ static TLS block */
+#define R_68K_TLS_LE16 38 /* 16 bit offset relative to
+ static TLS block */
+#define R_68K_TLS_LE8 39 /* 8 bit offset relative to
+ static TLS block */
+#define R_68K_TLS_DTPMOD32 40 /* 32 bit module number */
+#define R_68K_TLS_DTPREL32 41 /* 32 bit module-relative offset */
+#define R_68K_TLS_TPREL32 42 /* 32 bit TP-relative offset */
/* Keep this the last entry. */
-#define R_68K_NUM 23
+#define R_68K_NUM 43
/* Intel 80386 specific definitions. */
#define R_386_TLS_DTPMOD32 35 /* ID of module containing symbol */
#define R_386_TLS_DTPOFF32 36 /* Offset in TLS block */
#define R_386_TLS_TPOFF32 37 /* Negated offset in static TLS block */
-/* 38? */
+#define R_386_SIZE32 38 /* 32-bit symbol size */
#define R_386_TLS_GOTDESC 39 /* GOT offset for TLS descriptor. */
#define R_386_TLS_DESC_CALL 40 /* Marker of call through TLS
descriptor for
pointer to code and to
argument, returning the TLS
offset for the symbol. */
+#define R_386_IRELATIVE 42 /* Adjust indirectly by program base */
/* Keep this the last entry. */
-#define R_386_NUM 42
+#define R_386_NUM 43
/* SUN SPARC specific definitions. */
#define R_SPARC_PC_LM22 39 /* Low miggle 22 bits of ... */
#define R_SPARC_WDISP16 40 /* PC relative 16 bit shifted */
#define R_SPARC_WDISP19 41 /* PC relative 19 bit shifted */
+#define R_SPARC_GLOB_JMP 42 /* was part of v9 ABI but was removed */
#define R_SPARC_7 43 /* Direct 7 bit */
#define R_SPARC_5 44 /* Direct 5 bit */
#define R_SPARC_6 45 /* Direct 6 bit */
#define R_SPARC_TLS_DTPOFF64 77
#define R_SPARC_TLS_TPOFF32 78
#define R_SPARC_TLS_TPOFF64 79
+#define R_SPARC_GOTDATA_HIX22 80
+#define R_SPARC_GOTDATA_LOX10 81
+#define R_SPARC_GOTDATA_OP_HIX22 82
+#define R_SPARC_GOTDATA_OP_LOX10 83
+#define R_SPARC_GOTDATA_OP 84
+#define R_SPARC_H34 85
+#define R_SPARC_SIZE32 86
+#define R_SPARC_SIZE64 87
+#define R_SPARC_WDISP10 88
+#define R_SPARC_JMP_IREL 248
+#define R_SPARC_IRELATIVE 249
+#define R_SPARC_GNU_VTINHERIT 250
+#define R_SPARC_GNU_VTENTRY 251
+#define R_SPARC_REV32 252
/* Keep this the last entry. */
-#define R_SPARC_NUM 80
+#define R_SPARC_NUM 253
/* For Sparc64, legal values for d_tag of Elf64_Dyn. */
-#define DT_SPARC_REGISTER 0x70000001
-#define DT_SPARC_NUM 2
-
-/* Bits present in AT_HWCAP on SPARC. */
-
-#define HWCAP_SPARC_FLUSH 1 /* The CPU supports flush insn. */
-#define HWCAP_SPARC_STBAR 2
-#define HWCAP_SPARC_SWAP 4
-#define HWCAP_SPARC_MULDIV 8
-#define HWCAP_SPARC_V9 16 /* The CPU is v9, so v8plus is ok. */
-#define HWCAP_SPARC_ULTRA3 32
-#define HWCAP_SPARC_BLKINIT 64 /* Sun4v with block-init/load-twin. */
-#define HWCAP_SPARC_N2 128
+#define DT_SPARC_REGISTER 0x70000001
+#define DT_SPARC_NUM 2
/* MIPS R3000 specific definitions. */
/* Legal values for e_flags field of Elf32_Ehdr. */
-#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */
-#define EF_MIPS_PIC 2 /* Contains PIC code */
-#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */
-#define EF_MIPS_XGOT 8
-#define EF_MIPS_64BIT_WHIRL 16
-#define EF_MIPS_ABI2 32
-#define EF_MIPS_ABI_ON32 64
-#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */
+#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used. */
+#define EF_MIPS_PIC 2 /* Contains PIC code. */
+#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence. */
+#define EF_MIPS_XGOT 8
+#define EF_MIPS_64BIT_WHIRL 16
+#define EF_MIPS_ABI2 32
+#define EF_MIPS_ABI_ON32 64
+#define EF_MIPS_NAN2008 1024 /* Uses IEEE 754-2008 NaN encoding. */
+#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level. */
/* Legal values for MIPS architecture level. */
-#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
-#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
-#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
-#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
-#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
-#define EF_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */
-#define EF_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */
-
-/* The following are non-official names and should not be used. */
-
-#define E_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
-#define E_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
-#define E_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
-#define E_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
-#define E_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
-#define E_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */
-#define E_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */
+#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */
+#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */
+#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */
+#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */
+#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */
+#define EF_MIPS_ARCH_32 0x50000000 /* MIPS32 code. */
+#define EF_MIPS_ARCH_64 0x60000000 /* MIPS64 code. */
+#define EF_MIPS_ARCH_32R2 0x70000000 /* MIPS32r2 code. */
+#define EF_MIPS_ARCH_64R2 0x80000000 /* MIPS64r2 code. */
+
+/* The following are unofficial names and should not be used. */
+
+#define E_MIPS_ARCH_1 EF_MIPS_ARCH_1
+#define E_MIPS_ARCH_2 EF_MIPS_ARCH_2
+#define E_MIPS_ARCH_3 EF_MIPS_ARCH_3
+#define E_MIPS_ARCH_4 EF_MIPS_ARCH_4
+#define E_MIPS_ARCH_5 EF_MIPS_ARCH_5
+#define E_MIPS_ARCH_32 EF_MIPS_ARCH_32
+#define E_MIPS_ARCH_64 EF_MIPS_ARCH_64
/* Special section indices. */
-#define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */
-#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */
-#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */
-#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */
-#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */
+#define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols. */
+#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */
+#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */
+#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols. */
+#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols. */
/* Legal values for sh_type field of Elf32_Shdr. */
-#define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */
-#define SHT_MIPS_MSYM 0x70000001
-#define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */
-#define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */
-#define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */
-#define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information*/
-#define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */
-#define SHT_MIPS_PACKAGE 0x70000007
-#define SHT_MIPS_PACKSYM 0x70000008
-#define SHT_MIPS_RELD 0x70000009
-#define SHT_MIPS_IFACE 0x7000000b
-#define SHT_MIPS_CONTENT 0x7000000c
-#define SHT_MIPS_OPTIONS 0x7000000d /* Miscellaneous options. */
-#define SHT_MIPS_SHDR 0x70000010
-#define SHT_MIPS_FDESC 0x70000011
-#define SHT_MIPS_EXTSYM 0x70000012
-#define SHT_MIPS_DENSE 0x70000013
-#define SHT_MIPS_PDESC 0x70000014
-#define SHT_MIPS_LOCSYM 0x70000015
-#define SHT_MIPS_AUXSYM 0x70000016
-#define SHT_MIPS_OPTSYM 0x70000017
-#define SHT_MIPS_LOCSTR 0x70000018
-#define SHT_MIPS_LINE 0x70000019
-#define SHT_MIPS_RFDESC 0x7000001a
-#define SHT_MIPS_DELTASYM 0x7000001b
-#define SHT_MIPS_DELTAINST 0x7000001c
-#define SHT_MIPS_DELTACLASS 0x7000001d
-#define SHT_MIPS_DWARF 0x7000001e /* DWARF debugging information. */
-#define SHT_MIPS_DELTADECL 0x7000001f
-#define SHT_MIPS_SYMBOL_LIB 0x70000020
-#define SHT_MIPS_EVENTS 0x70000021 /* Event section. */
-#define SHT_MIPS_TRANSLATE 0x70000022
-#define SHT_MIPS_PIXIE 0x70000023
-#define SHT_MIPS_XLATE 0x70000024
-#define SHT_MIPS_XLATE_DEBUG 0x70000025
-#define SHT_MIPS_WHIRL 0x70000026
-#define SHT_MIPS_EH_REGION 0x70000027
-#define SHT_MIPS_XLATE_OLD 0x70000028
-#define SHT_MIPS_PDR_EXCEPTION 0x70000029
+#define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link. */
+#define SHT_MIPS_MSYM 0x70000001
+#define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols. */
+#define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes. */
+#define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */
+#define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging info. */
+#define SHT_MIPS_REGINFO 0x70000006 /* Register usage information. */
+#define SHT_MIPS_PACKAGE 0x70000007
+#define SHT_MIPS_PACKSYM 0x70000008
+#define SHT_MIPS_RELD 0x70000009
+#define SHT_MIPS_IFACE 0x7000000b
+#define SHT_MIPS_CONTENT 0x7000000c
+#define SHT_MIPS_OPTIONS 0x7000000d /* Miscellaneous options. */
+#define SHT_MIPS_SHDR 0x70000010
+#define SHT_MIPS_FDESC 0x70000011
+#define SHT_MIPS_EXTSYM 0x70000012
+#define SHT_MIPS_DENSE 0x70000013
+#define SHT_MIPS_PDESC 0x70000014
+#define SHT_MIPS_LOCSYM 0x70000015
+#define SHT_MIPS_AUXSYM 0x70000016
+#define SHT_MIPS_OPTSYM 0x70000017
+#define SHT_MIPS_LOCSTR 0x70000018
+#define SHT_MIPS_LINE 0x70000019
+#define SHT_MIPS_RFDESC 0x7000001a
+#define SHT_MIPS_DELTASYM 0x7000001b
+#define SHT_MIPS_DELTAINST 0x7000001c
+#define SHT_MIPS_DELTACLASS 0x7000001d
+#define SHT_MIPS_DWARF 0x7000001e /* DWARF debugging information. */
+#define SHT_MIPS_DELTADECL 0x7000001f
+#define SHT_MIPS_SYMBOL_LIB 0x70000020
+#define SHT_MIPS_EVENTS 0x70000021 /* Event section. */
+#define SHT_MIPS_TRANSLATE 0x70000022
+#define SHT_MIPS_PIXIE 0x70000023
+#define SHT_MIPS_XLATE 0x70000024
+#define SHT_MIPS_XLATE_DEBUG 0x70000025
+#define SHT_MIPS_WHIRL 0x70000026
+#define SHT_MIPS_EH_REGION 0x70000027
+#define SHT_MIPS_XLATE_OLD 0x70000028
+#define SHT_MIPS_PDR_EXCEPTION 0x70000029
/* Legal values for sh_flags field of Elf32_Shdr. */
-#define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */
-#define SHF_MIPS_MERGE 0x20000000
-#define SHF_MIPS_ADDR 0x40000000
-#define SHF_MIPS_STRINGS 0x80000000
-#define SHF_MIPS_NOSTRIP 0x08000000
-#define SHF_MIPS_LOCAL 0x04000000
-#define SHF_MIPS_NAMES 0x02000000
-#define SHF_MIPS_NODUPE 0x01000000
+#define SHF_MIPS_GPREL 0x10000000 /* Must be in global data area. */
+#define SHF_MIPS_MERGE 0x20000000
+#define SHF_MIPS_ADDR 0x40000000
+#define SHF_MIPS_STRINGS 0x80000000
+#define SHF_MIPS_NOSTRIP 0x08000000
+#define SHF_MIPS_LOCAL 0x04000000
+#define SHF_MIPS_NAMES 0x02000000
+#define SHF_MIPS_NODUPE 0x01000000
/* Symbol tables. */
{
struct
{
- Elf32_Word gt_current_g_value; /* -G value used for compilation */
- Elf32_Word gt_unused; /* Not used */
- } gt_header; /* First entry in section */
+ Elf32_Word gt_current_g_value; /* -G value used for compilation. */
+ Elf32_Word gt_unused; /* Not used. */
+ } gt_header; /* First entry in section. */
struct
{
- Elf32_Word gt_g_value; /* If this value were used for -G */
- Elf32_Word gt_bytes; /* This many bytes would be used */
- } gt_entry; /* Subsequent entries in section */
+ Elf32_Word gt_g_value; /* If this value were used for -G. */
+ Elf32_Word gt_bytes; /* This many bytes would be used. */
+ } gt_entry; /* Subsequent entries in section. */
} Elf32_gptab;
/* Entry found in sections of type SHT_MIPS_REGINFO. */
typedef struct
{
- Elf32_Word ri_gprmask; /* General registers used */
- Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */
- Elf32_Sword ri_gp_value; /* $gp register value */
+ Elf32_Word ri_gprmask; /* General registers used. */
+ Elf32_Word ri_cprmask[4]; /* Coprocessor registers used. */
+ Elf32_Sword ri_gp_value; /* $gp register value. */
} Elf32_RegInfo;
/* Entries found in sections of type SHT_MIPS_OPTIONS. */
#define R_PPC_GOT_DTPREL16_HI 93 /* half16* (sym+add)@got@dtprel@h */
#define R_PPC_GOT_DTPREL16_HA 94 /* half16* (sym+add)@got@dtprel@ha */
-/* Keep this the last entry. */
-#define R_PPC_NUM 95
-
/* The remaining relocs are from the Embedded ELF ABI, and are not
in the SVR4 ELF ABI. */
#define R_PPC_EMB_NADDR32 101
#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */
#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */
+/* GNU extension to support local ifunc. */
+#define R_PPC_IRELATIVE 248
+
/* GNU relocs used in PIC code sequences. */
-#define R_PPC_REL16 249 /* word32 (sym-.) */
-#define R_PPC_REL16_LO 250 /* half16 (sym-.)@l */
-#define R_PPC_REL16_HI 251 /* half16 (sym-.)@h */
-#define R_PPC_REL16_HA 252 /* half16 (sym-.)@ha */
+#define R_PPC_REL16 249 /* half16 (sym+add-.) */
+#define R_PPC_REL16_LO 250 /* half16 (sym+add-.)@l */
+#define R_PPC_REL16_HI 251 /* half16 (sym+add-.)@h */
+#define R_PPC_REL16_HA 252 /* half16 (sym+add-.)@ha */
/* This is a phony reloc to handle any old fashioned TOC16 references
that may still be in object files. */
#define R_PPC64_DTPREL16_HIGHERA 104 /* half16 (sym+add)@dtprel@highera */
#define R_PPC64_DTPREL16_HIGHEST 105 /* half16 (sym+add)@dtprel@highest */
#define R_PPC64_DTPREL16_HIGHESTA 106 /* half16 (sym+add)@dtprel@highesta */
-
-/* Keep this the last entry. */
-#define R_PPC64_NUM 107
+#define R_PPC64_TLSGD 107 /* none (sym+add)@tlsgd */
+#define R_PPC64_TLSLD 108 /* none (sym+add)@tlsld */
+#define R_PPC64_TOCSAVE 109 /* none */
+
+/* Added when HA and HI relocs were changed to report overflows. */
+#define R_PPC64_ADDR16_HIGH 110
+#define R_PPC64_ADDR16_HIGHA 111
+#define R_PPC64_TPREL16_HIGH 112
+#define R_PPC64_TPREL16_HIGHA 113
+#define R_PPC64_DTPREL16_HIGH 114
+#define R_PPC64_DTPREL16_HIGHA 115
+
+/* GNU extension to support local ifunc. */
+#define R_PPC64_JMP_IREL 247
+#define R_PPC64_IRELATIVE 248
+#define R_PPC64_REL16 249 /* half16 (sym+add-.) */
+#define R_PPC64_REL16_LO 250 /* half16 (sym+add-.)@l */
+#define R_PPC64_REL16_HI 251 /* half16 (sym+add-.)@h */
+#define R_PPC64_REL16_HA 252 /* half16 (sym+add-.)@ha */
+
+/* e_flags bits specifying ABI.
+ 1 for original function descriptor using ABI,
+ 2 for revised ABI without function descriptors,
+ 0 for unspecified or not using any features affected by the differences. */
+#define EF_PPC64_ABI 3
/* PowerPC64 specific values for the Dyn d_tag field. */
#define DT_PPC64_GLINK (DT_LOPROC + 0)
#define DT_PPC64_OPD (DT_LOPROC + 1)
#define DT_PPC64_OPDSZ (DT_LOPROC + 2)
+#define DT_PPC64_OPT (DT_LOPROC + 3)
#define DT_PPC64_NUM 3
+/* PowerPC64 specific values for the DT_PPC64_OPT Dyn entry. */
+#define PPC64_OPT_TLS 1
+#define PPC64_OPT_MULTI_TOC 2
+
+/* PowerPC64 specific values for the Elf64_Sym st_other field. */
+#define STO_PPC64_LOCAL_BIT 5
+#define STO_PPC64_LOCAL_MASK (7 << STO_PPC64_LOCAL_BIT)
+#define PPC64_LOCAL_ENTRY_OFFSET(other) \
+ (((1 << (((other) & STO_PPC64_LOCAL_MASK) >> STO_PPC64_LOCAL_BIT)) >> 2) << 2)
+
/* ARM specific declarations */
/* Processor specific flags for the ELF header e_flags field. */
-#define EF_ARM_RELEXEC 0x01
-#define EF_ARM_HASENTRY 0x02
-#define EF_ARM_INTERWORK 0x04
-#define EF_ARM_APCS_26 0x08
-#define EF_ARM_APCS_FLOAT 0x10
-#define EF_ARM_PIC 0x20
-#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use */
-#define EF_ARM_NEW_ABI 0x80
-#define EF_ARM_OLD_ABI 0x100
+#define EF_ARM_RELEXEC 0x01
+#define EF_ARM_HASENTRY 0x02
+#define EF_ARM_INTERWORK 0x04
+#define EF_ARM_APCS_26 0x08
+#define EF_ARM_APCS_FLOAT 0x10
+#define EF_ARM_PIC 0x20
+#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use */
+#define EF_ARM_NEW_ABI 0x80
+#define EF_ARM_OLD_ABI 0x100
+#define EF_ARM_SOFT_FLOAT 0x200
+#define EF_ARM_VFP_FLOAT 0x400
+#define EF_ARM_MAVERICK_FLOAT 0x800
+
+#define EF_ARM_ABI_FLOAT_SOFT 0x200 /* NB conflicts with EF_ARM_SOFT_FLOAT */
+#define EF_ARM_ABI_FLOAT_HARD 0x400 /* NB conflicts with EF_ARM_VFP_FLOAT */
+
/* Other constants defined in the ARM ELF spec. version B-01. */
/* NB. These conflict with values defined above. */
#define EF_ARM_SYMSARESORTED 0x04
-#define EF_ARM_DYNSYMSUSESEGIDX 0x08
+#define EF_ARM_DYNSYMSUSESEGIDX 0x08
#define EF_ARM_MAPSYMSFIRST 0x10
#define EF_ARM_EABIMASK 0XFF000000
-#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK)
-#define EF_ARM_EABI_UNKNOWN 0x00000000
-#define EF_ARM_EABI_VER1 0x01000000
-#define EF_ARM_EABI_VER2 0x02000000
+/* Constants defined in AAELF. */
+#define EF_ARM_BE8 0x00800000
+#define EF_ARM_LE8 0x00400000
+
+#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK)
+#define EF_ARM_EABI_UNKNOWN 0x00000000
+#define EF_ARM_EABI_VER1 0x01000000
+#define EF_ARM_EABI_VER2 0x02000000
+#define EF_ARM_EABI_VER3 0x03000000
+#define EF_ARM_EABI_VER4 0x04000000
+#define EF_ARM_EABI_VER5 0x05000000
-/* Additional symbol types for Thumb */
-#define STT_ARM_TFUNC 0xd
+/* Additional symbol types for Thumb. */
+#define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */
+#define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */
/* ARM-specific values for sh_flags */
-#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */
-#define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined
- in the input to a link step */
+#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */
+#define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined
+ in the input to a link step. */
/* ARM-specific program header flags */
-#define PF_ARM_SB 0x10000000 /* Segment contains the location
- addressed by the static base */
+#define PF_ARM_SB 0x10000000 /* Segment contains the location
+ addressed by the static base. */
+#define PF_ARM_PI 0x20000000 /* Position-independent segment. */
+#define PF_ARM_ABS 0x40000000 /* Absolute segment. */
/* Processor specific values for the Phdr p_type field. */
-#define PT_ARM_EXIDX 0x70000001 /* .ARM.exidx segment */
+#define PT_ARM_EXIDX (PT_LOPROC + 1) /* ARM unwind segment. */
+
+/* Processor specific values for the Shdr sh_type field. */
+#define SHT_ARM_EXIDX (SHT_LOPROC + 1) /* ARM unwind section. */
+#define SHT_ARM_PREEMPTMAP (SHT_LOPROC + 2) /* Preemption details. */
+#define SHT_ARM_ATTRIBUTES (SHT_LOPROC + 3) /* ARM attributes section. */
+
+
+/* AArch64 relocs. */
+
+#define R_AARCH64_NONE 0 /* No relocation. */
+#define R_AARCH64_ABS64 257 /* Direct 64 bit. */
+#define R_AARCH64_ABS32 258 /* Direct 32 bit. */
+#define R_AARCH64_ABS16 259 /* Direct 16-bit. */
+#define R_AARCH64_PREL64 260 /* PC-relative 64-bit. */
+#define R_AARCH64_PREL32 261 /* PC-relative 32-bit. */
+#define R_AARCH64_PREL16 262 /* PC-relative 16-bit. */
+#define R_AARCH64_MOVW_UABS_G0 263 /* Dir. MOVZ imm. from bits 15:0. */
+#define R_AARCH64_MOVW_UABS_G0_NC 264 /* Likewise for MOVK; no check. */
+#define R_AARCH64_MOVW_UABS_G1 265 /* Dir. MOVZ imm. from bits 31:16. */
+#define R_AARCH64_MOVW_UABS_G1_NC 266 /* Likewise for MOVK; no check. */
+#define R_AARCH64_MOVW_UABS_G2 267 /* Dir. MOVZ imm. from bits 47:32. */
+#define R_AARCH64_MOVW_UABS_G2_NC 268 /* Likewise for MOVK; no check. */
+#define R_AARCH64_MOVW_UABS_G3 269 /* Dir. MOV{K,Z} imm. from 63:48. */
+#define R_AARCH64_MOVW_SABS_G0 270 /* Dir. MOV{N,Z} imm. from 15:0. */
+#define R_AARCH64_MOVW_SABS_G1 271 /* Dir. MOV{N,Z} imm. from 31:16. */
+#define R_AARCH64_MOVW_SABS_G2 272 /* Dir. MOV{N,Z} imm. from 47:32. */
+#define R_AARCH64_LD_PREL_LO19 273 /* PC-rel. LD imm. from bits 20:2. */
+#define R_AARCH64_ADR_PREL_LO21 274 /* PC-rel. ADR imm. from bits 20:0. */
+#define R_AARCH64_ADR_PREL_PG_HI21 275 /* Page-rel. ADRP imm. from 32:12. */
+#define R_AARCH64_ADR_PREL_PG_HI21_NC 276 /* Likewise; no overflow check. */
+#define R_AARCH64_ADD_ABS_LO12_NC 277 /* Dir. ADD imm. from bits 11:0. */
+#define R_AARCH64_LDST8_ABS_LO12_NC 278 /* Likewise for LD/ST; no check. */
+#define R_AARCH64_TSTBR14 279 /* PC-rel. TBZ/TBNZ imm. from 15:2. */
+#define R_AARCH64_CONDBR19 280 /* PC-rel. cond. br. imm. from 20:2. */
+#define R_AARCH64_JUMP26 282 /* PC-rel. B imm. from bits 27:2. */
+#define R_AARCH64_CALL26 283 /* Likewise for CALL. */
+#define R_AARCH64_LDST16_ABS_LO12_NC 284 /* Dir. ADD imm. from bits 11:1. */
+#define R_AARCH64_LDST32_ABS_LO12_NC 285 /* Likewise for bits 11:2. */
+#define R_AARCH64_LDST64_ABS_LO12_NC 286 /* Likewise for bits 11:3. */
+#define R_AARCH64_MOVW_PREL_G0 287 /* PC-rel. MOV{N,Z} imm. from 15:0. */
+#define R_AARCH64_MOVW_PREL_G0_NC 288 /* Likewise for MOVK; no check. */
+#define R_AARCH64_MOVW_PREL_G1 289 /* PC-rel. MOV{N,Z} imm. from 31:16. */
+#define R_AARCH64_MOVW_PREL_G1_NC 290 /* Likewise for MOVK; no check. */
+#define R_AARCH64_MOVW_PREL_G2 291 /* PC-rel. MOV{N,Z} imm. from 47:32. */
+#define R_AARCH64_MOVW_PREL_G2_NC 292 /* Likewise for MOVK; no check. */
+#define R_AARCH64_MOVW_PREL_G3 293 /* PC-rel. MOV{N,Z} imm. from 63:48. */
+#define R_AARCH64_LDST128_ABS_LO12_NC 299 /* Dir. ADD imm. from bits 11:4. */
+#define R_AARCH64_MOVW_GOTOFF_G0 300 /* GOT-rel. off. MOV{N,Z} imm. 15:0. */
+#define R_AARCH64_MOVW_GOTOFF_G0_NC 301 /* Likewise for MOVK; no check. */
+#define R_AARCH64_MOVW_GOTOFF_G1 302 /* GOT-rel. o. MOV{N,Z} imm. 31:16. */
+#define R_AARCH64_MOVW_GOTOFF_G1_NC 303 /* Likewise for MOVK; no check. */
+#define R_AARCH64_MOVW_GOTOFF_G2 304 /* GOT-rel. o. MOV{N,Z} imm. 47:32. */
+#define R_AARCH64_MOVW_GOTOFF_G2_NC 305 /* Likewise for MOVK; no check. */
+#define R_AARCH64_MOVW_GOTOFF_G3 306 /* GOT-rel. o. MOV{N,Z} imm. 63:48. */
+#define R_AARCH64_GOTREL64 307 /* GOT-relative 64-bit. */
+#define R_AARCH64_GOTREL32 308 /* GOT-relative 32-bit. */
+#define R_AARCH64_GOT_LD_PREL19 309 /* PC-rel. GOT off. load imm. 20:2. */
+#define R_AARCH64_LD64_GOTOFF_LO15 310 /* GOT-rel. off. LD/ST imm. 14:3. */
+#define R_AARCH64_ADR_GOT_PAGE 311 /* P-page-rel. GOT off. ADRP 32:12. */
+#define R_AARCH64_LD64_GOT_LO12_NC 312 /* Dir. GOT off. LD/ST imm. 11:3. */
+#define R_AARCH64_LD64_GOTPAGE_LO15 313 /* GOT-page-rel. GOT off. LD/ST 14:3 */
+#define R_AARCH64_TLSGD_ADR_PREL21 512 /* PC-relative ADR imm. 20:0. */
+#define R_AARCH64_TLSGD_ADR_PAGE21 513 /* page-rel. ADRP imm. 32:12. */
+#define R_AARCH64_TLSGD_ADD_LO12_NC 514 /* direct ADD imm. from 11:0. */
+#define R_AARCH64_TLSGD_MOVW_G1 515 /* GOT-rel. MOV{N,Z} 31:16. */
+#define R_AARCH64_TLSGD_MOVW_G0_NC 516 /* GOT-rel. MOVK imm. 15:0. */
+#define R_AARCH64_TLSLD_ADR_PREL21 517 /* Like 512; local dynamic model. */
+#define R_AARCH64_TLSLD_ADR_PAGE21 518 /* Like 513; local dynamic model. */
+#define R_AARCH64_TLSLD_ADD_LO12_NC 519 /* Like 514; local dynamic model. */
+#define R_AARCH64_TLSLD_MOVW_G1 520 /* Like 515; local dynamic model. */
+#define R_AARCH64_TLSLD_MOVW_G0_NC 521 /* Like 516; local dynamic model. */
+#define R_AARCH64_TLSLD_LD_PREL19 522 /* TLS PC-rel. load imm. 20:2. */
+#define R_AARCH64_TLSLD_MOVW_DTPREL_G2 523 /* TLS DTP-rel. MOV{N,Z} 47:32. */
+#define R_AARCH64_TLSLD_MOVW_DTPREL_G1 524 /* TLS DTP-rel. MOV{N,Z} 31:16. */
+#define R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC 525 /* Likewise; MOVK; no check. */
+#define R_AARCH64_TLSLD_MOVW_DTPREL_G0 526 /* TLS DTP-rel. MOV{N,Z} 15:0. */
+#define R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC 527 /* Likewise; MOVK; no check. */
+#define R_AARCH64_TLSLD_ADD_DTPREL_HI12 528 /* DTP-rel. ADD imm. from 23:12. */
+#define R_AARCH64_TLSLD_ADD_DTPREL_LO12 529 /* DTP-rel. ADD imm. from 11:0. */
+#define R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC 530 /* Likewise; no ovfl. check. */
+#define R_AARCH64_TLSLD_LDST8_DTPREL_LO12 531 /* DTP-rel. LD/ST imm. 11:0. */
+#define R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC 532 /* Likewise; no check. */
+#define R_AARCH64_TLSLD_LDST16_DTPREL_LO12 533 /* DTP-rel. LD/ST imm. 11:1. */
+#define R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC 534 /* Likewise; no check. */
+#define R_AARCH64_TLSLD_LDST32_DTPREL_LO12 535 /* DTP-rel. LD/ST imm. 11:2. */
+#define R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC 536 /* Likewise; no check. */
+#define R_AARCH64_TLSLD_LDST64_DTPREL_LO12 537 /* DTP-rel. LD/ST imm. 11:3. */
+#define R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC 538 /* Likewise; no check. */
+#define R_AARCH64_TLSIE_MOVW_GOTTPREL_G1 539 /* GOT-rel. MOV{N,Z} 31:16. */
+#define R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC 540 /* GOT-rel. MOVK 15:0. */
+#define R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 541 /* Page-rel. ADRP 32:12. */
+#define R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC 542 /* Direct LD off. 11:3. */
+#define R_AARCH64_TLSIE_LD_GOTTPREL_PREL19 543 /* PC-rel. load imm. 20:2. */
+#define R_AARCH64_TLSLE_MOVW_TPREL_G2 544 /* TLS TP-rel. MOV{N,Z} 47:32. */
+#define R_AARCH64_TLSLE_MOVW_TPREL_G1 545 /* TLS TP-rel. MOV{N,Z} 31:16. */
+#define R_AARCH64_TLSLE_MOVW_TPREL_G1_NC 546 /* Likewise; MOVK; no check. */
+#define R_AARCH64_TLSLE_MOVW_TPREL_G0 547 /* TLS TP-rel. MOV{N,Z} 15:0. */
+#define R_AARCH64_TLSLE_MOVW_TPREL_G0_NC 548 /* Likewise; MOVK; no check. */
+#define R_AARCH64_TLSLE_ADD_TPREL_HI12 549 /* TP-rel. ADD imm. 23:12. */
+#define R_AARCH64_TLSLE_ADD_TPREL_LO12 550 /* TP-rel. ADD imm. 11:0. */
+#define R_AARCH64_TLSLE_ADD_TPREL_LO12_NC 551 /* Likewise; no ovfl. check. */
+#define R_AARCH64_TLSLE_LDST8_TPREL_LO12 552 /* TP-rel. LD/ST off. 11:0. */
+#define R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC 553 /* Likewise; no ovfl. check. */
+#define R_AARCH64_TLSLE_LDST16_TPREL_LO12 554 /* TP-rel. LD/ST off. 11:1. */
+#define R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC 555 /* Likewise; no check. */
+#define R_AARCH64_TLSLE_LDST32_TPREL_LO12 556 /* TP-rel. LD/ST off. 11:2. */
+#define R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC 557 /* Likewise; no check. */
+#define R_AARCH64_TLSLE_LDST64_TPREL_LO12 558 /* TP-rel. LD/ST off. 11:3. */
+#define R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC 559 /* Likewise; no check. */
+#define R_AARCH64_TLSDESC_LD_PREL19 560 /* PC-rel. load immediate 20:2. */
+#define R_AARCH64_TLSDESC_ADR_PREL21 561 /* PC-rel. ADR immediate 20:0. */
+#define R_AARCH64_TLSDESC_ADR_PAGE21 562 /* Page-rel. ADRP imm. 32:12. */
+#define R_AARCH64_TLSDESC_LD64_LO12 563 /* Direct LD off. from 11:3. */
+#define R_AARCH64_TLSDESC_ADD_LO12 564 /* Direct ADD imm. from 11:0. */
+#define R_AARCH64_TLSDESC_OFF_G1 565 /* GOT-rel. MOV{N,Z} imm. 31:16. */
+#define R_AARCH64_TLSDESC_OFF_G0_NC 566 /* GOT-rel. MOVK imm. 15:0; no ck. */
+#define R_AARCH64_TLSDESC_LDR 567 /* Relax LDR. */
+#define R_AARCH64_TLSDESC_ADD 568 /* Relax ADD. */
+#define R_AARCH64_TLSDESC_CALL 569 /* Relax BLR. */
+#define R_AARCH64_TLSLE_LDST128_TPREL_LO12 570 /* TP-rel. LD/ST off. 11:4. */
+#define R_AARCH64_TLSLE_LDST128_TPREL_LO12_NC 571 /* Likewise; no check. */
+#define R_AARCH64_TLSLD_LDST128_DTPREL_LO12 572 /* DTP-rel. LD/ST imm. 11:4. */
+#define R_AARCH64_TLSLD_LDST128_DTPREL_LO12_NC 573 /* Likewise; no check. */
+#define R_AARCH64_COPY 1024 /* Copy symbol at runtime. */
+#define R_AARCH64_GLOB_DAT 1025 /* Create GOT entry. */
+#define R_AARCH64_JUMP_SLOT 1026 /* Create PLT entry. */
+#define R_AARCH64_RELATIVE 1027 /* Adjust by program base. */
+#define R_AARCH64_TLS_DTPMOD64 1028 /* Module number, 64 bit. */
+#define R_AARCH64_TLS_DTPREL64 1029 /* Module-relative offset, 64 bit. */
+#define R_AARCH64_TLS_TPREL64 1030 /* TP-relative offset, 64 bit. */
+#define R_AARCH64_TLSDESC 1031 /* TLS Descriptor. */
+#define R_AARCH64_IRELATIVE 1032 /* STT_GNU_IFUNC relocation. */
/* ARM relocs. */
#define R_ARM_NONE 0 /* No reloc */
-#define R_ARM_PC24 1 /* PC relative 26 bit branch */
+#define R_ARM_PC24 1 /* Deprecated PC relative 26
+ bit branch. */
#define R_ARM_ABS32 2 /* Direct 32 bit */
#define R_ARM_REL32 3 /* PC relative 32 bit */
#define R_ARM_PC13 4
#define R_ARM_ABS16 5 /* Direct 16 bit */
#define R_ARM_ABS12 6 /* Direct 12 bit */
-#define R_ARM_THM_ABS5 7
+#define R_ARM_THM_ABS5 7 /* Direct & 0x7C (LDR, STR). */
#define R_ARM_ABS8 8 /* Direct 8 bit */
#define R_ARM_SBREL32 9
-#define R_ARM_THM_PC22 10
-#define R_ARM_THM_PC8 11
+#define R_ARM_THM_PC22 10 /* PC relative 24 bit (Thumb32 BL). */
+#define R_ARM_THM_PC8 11 /* PC relative & 0x3FC
+ (Thumb16 LDR, ADD, ADR). */
#define R_ARM_AMP_VCALL9 12
-#define R_ARM_SWI24 13
-#define R_ARM_THM_SWI8 14
-#define R_ARM_XPC25 15
-#define R_ARM_THM_XPC22 16
+#define R_ARM_SWI24 13 /* Obsolete static relocation. */
+#define R_ARM_TLS_DESC 13 /* Dynamic relocation. */
+#define R_ARM_THM_SWI8 14 /* Reserved. */
+#define R_ARM_XPC25 15 /* Reserved. */
+#define R_ARM_THM_XPC22 16 /* Reserved. */
#define R_ARM_TLS_DTPMOD32 17 /* ID of module containing symbol */
#define R_ARM_TLS_DTPOFF32 18 /* Offset in TLS block */
#define R_ARM_TLS_TPOFF32 19 /* Offset in static TLS block */
#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */
#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */
#define R_ARM_GOT32 26 /* 32 bit GOT entry */
-#define R_ARM_PLT32 27 /* 32 bit PLT address */
-#define R_ARM_ALU_PCREL_7_0 32
-#define R_ARM_ALU_PCREL_15_8 33
-#define R_ARM_ALU_PCREL_23_15 34
-#define R_ARM_LDR_SBREL_11_0 35
-#define R_ARM_ALU_SBREL_19_12 36
-#define R_ARM_ALU_SBREL_27_20 37
+#define R_ARM_PLT32 27 /* Deprecated, 32 bit PLT address. */
+#define R_ARM_CALL 28 /* PC relative 24 bit (BL, BLX). */
+#define R_ARM_JUMP24 29 /* PC relative 24 bit
+ (B, BL<cond>). */
+#define R_ARM_THM_JUMP24 30 /* PC relative 24 bit (Thumb32 B.W). */
+#define R_ARM_BASE_ABS 31 /* Adjust by program base. */
+#define R_ARM_ALU_PCREL_7_0 32 /* Obsolete. */
+#define R_ARM_ALU_PCREL_15_8 33 /* Obsolete. */
+#define R_ARM_ALU_PCREL_23_15 34 /* Obsolete. */
+#define R_ARM_LDR_SBREL_11_0 35 /* Deprecated, prog. base relative. */
+#define R_ARM_ALU_SBREL_19_12 36 /* Deprecated, prog. base relative. */
+#define R_ARM_ALU_SBREL_27_20 37 /* Deprecated, prog. base relative. */
+#define R_ARM_TARGET1 38
+#define R_ARM_SBREL31 39 /* Program base relative. */
+#define R_ARM_V4BX 40
+#define R_ARM_TARGET2 41
+#define R_ARM_PREL31 42 /* 32 bit PC relative. */
+#define R_ARM_MOVW_ABS_NC 43 /* Direct 16-bit (MOVW). */
+#define R_ARM_MOVT_ABS 44 /* Direct high 16-bit (MOVT). */
+#define R_ARM_MOVW_PREL_NC 45 /* PC relative 16-bit (MOVW). */
+#define R_ARM_MOVT_PREL 46 /* PC relative (MOVT). */
+#define R_ARM_THM_MOVW_ABS_NC 47 /* Direct 16 bit (Thumb32 MOVW). */
+#define R_ARM_THM_MOVT_ABS 48 /* Direct high 16 bit
+ (Thumb32 MOVT). */
+#define R_ARM_THM_MOVW_PREL_NC 49 /* PC relative 16 bit
+ (Thumb32 MOVW). */
+#define R_ARM_THM_MOVT_PREL 50 /* PC relative high 16 bit
+ (Thumb32 MOVT). */
+#define R_ARM_THM_JUMP19 51 /* PC relative 20 bit
+ (Thumb32 B<cond>.W). */
+#define R_ARM_THM_JUMP6 52 /* PC relative X & 0x7E
+ (Thumb16 CBZ, CBNZ). */
+#define R_ARM_THM_ALU_PREL_11_0 53 /* PC relative 12 bit
+ (Thumb32 ADR.W). */
+#define R_ARM_THM_PC12 54 /* PC relative 12 bit
+ (Thumb32 LDR{D,SB,H,SH}). */
+#define R_ARM_ABS32_NOI 55 /* Direct 32-bit. */
+#define R_ARM_REL32_NOI 56 /* PC relative 32-bit. */
+#define R_ARM_ALU_PC_G0_NC 57 /* PC relative (ADD, SUB). */
+#define R_ARM_ALU_PC_G0 58 /* PC relative (ADD, SUB). */
+#define R_ARM_ALU_PC_G1_NC 59 /* PC relative (ADD, SUB). */
+#define R_ARM_ALU_PC_G1 60 /* PC relative (ADD, SUB). */
+#define R_ARM_ALU_PC_G2 61 /* PC relative (ADD, SUB). */
+#define R_ARM_LDR_PC_G1 62 /* PC relative (LDR,STR,LDRB,STRB). */
+#define R_ARM_LDR_PC_G2 63 /* PC relative (LDR,STR,LDRB,STRB). */
+#define R_ARM_LDRS_PC_G0 64 /* PC relative (STR{D,H},
+ LDR{D,SB,H,SH}). */
+#define R_ARM_LDRS_PC_G1 65 /* PC relative (STR{D,H},
+ LDR{D,SB,H,SH}). */
+#define R_ARM_LDRS_PC_G2 66 /* PC relative (STR{D,H},
+ LDR{D,SB,H,SH}). */
+#define R_ARM_LDC_PC_G0 67 /* PC relative (LDC, STC). */
+#define R_ARM_LDC_PC_G1 68 /* PC relative (LDC, STC). */
+#define R_ARM_LDC_PC_G2 69 /* PC relative (LDC, STC). */
+#define R_ARM_ALU_SB_G0_NC 70 /* Program base relative (ADD,SUB). */
+#define R_ARM_ALU_SB_G0 71 /* Program base relative (ADD,SUB). */
+#define R_ARM_ALU_SB_G1_NC 72 /* Program base relative (ADD,SUB). */
+#define R_ARM_ALU_SB_G1 73 /* Program base relative (ADD,SUB). */
+#define R_ARM_ALU_SB_G2 74 /* Program base relative (ADD,SUB). */
+#define R_ARM_LDR_SB_G0 75 /* Program base relative (LDR,
+ STR, LDRB, STRB). */
+#define R_ARM_LDR_SB_G1 76 /* Program base relative
+ (LDR, STR, LDRB, STRB). */
+#define R_ARM_LDR_SB_G2 77 /* Program base relative
+ (LDR, STR, LDRB, STRB). */
+#define R_ARM_LDRS_SB_G0 78 /* Program base relative
+ (LDR, STR, LDRB, STRB). */
+#define R_ARM_LDRS_SB_G1 79 /* Program base relative
+ (LDR, STR, LDRB, STRB). */
+#define R_ARM_LDRS_SB_G2 80 /* Program base relative
+ (LDR, STR, LDRB, STRB). */
+#define R_ARM_LDC_SB_G0 81 /* Program base relative (LDC,STC). */
+#define R_ARM_LDC_SB_G1 82 /* Program base relative (LDC,STC). */
+#define R_ARM_LDC_SB_G2 83 /* Program base relative (LDC,STC). */
+#define R_ARM_MOVW_BREL_NC 84 /* Program base relative 16
+ bit (MOVW). */
+#define R_ARM_MOVT_BREL 85 /* Program base relative high
+ 16 bit (MOVT). */
+#define R_ARM_MOVW_BREL 86 /* Program base relative 16
+ bit (MOVW). */
+#define R_ARM_THM_MOVW_BREL_NC 87 /* Program base relative 16
+ bit (Thumb32 MOVW). */
+#define R_ARM_THM_MOVT_BREL 88 /* Program base relative high
+ 16 bit (Thumb32 MOVT). */
+#define R_ARM_THM_MOVW_BREL 89 /* Program base relative 16
+ bit (Thumb32 MOVW). */
+#define R_ARM_TLS_GOTDESC 90
+#define R_ARM_TLS_CALL 91
+#define R_ARM_TLS_DESCSEQ 92 /* TLS relaxation. */
+#define R_ARM_THM_TLS_CALL 93
+#define R_ARM_PLT32_ABS 94
+#define R_ARM_GOT_ABS 95 /* GOT entry. */
+#define R_ARM_GOT_PREL 96 /* PC relative GOT entry. */
+#define R_ARM_GOT_BREL12 97 /* GOT entry relative to GOT
+ origin (LDR). */
+#define R_ARM_GOTOFF12 98 /* 12 bit, GOT entry relative
+ to GOT origin (LDR, STR). */
+#define R_ARM_GOTRELAX 99
#define R_ARM_GNU_VTENTRY 100
#define R_ARM_GNU_VTINHERIT 101
-#define R_ARM_THM_PC11 102 /* thumb unconditional branch */
-#define R_ARM_THM_PC9 103 /* thumb conditional branch */
+#define R_ARM_THM_PC11 102 /* PC relative & 0xFFE (Thumb16 B). */
+#define R_ARM_THM_PC9 103 /* PC relative & 0x1FE
+ (Thumb16 B/B<cond>). */
#define R_ARM_TLS_GD32 104 /* PC-rel 32 bit for global dynamic
thread local data */
#define R_ARM_TLS_LDM32 105 /* PC-rel 32 bit for local dynamic
static TLS block offset */
#define R_ARM_TLS_LE32 108 /* 32 bit offset relative to static
TLS block */
+#define R_ARM_TLS_LDO12 109 /* 12 bit relative to TLS
+ block (LDR, STR). */
+#define R_ARM_TLS_LE12 110 /* 12 bit relative to static
+ TLS block (LDR, STR). */
+#define R_ARM_TLS_IE12GP 111 /* 12 bit GOT entry relative
+ to GOT origin (LDR). */
+#define R_ARM_ME_TOO 128 /* Obsolete. */
+#define R_ARM_THM_TLS_DESCSEQ 129
+#define R_ARM_THM_TLS_DESCSEQ16 129
+#define R_ARM_THM_TLS_DESCSEQ32 130
+#define R_ARM_THM_GOT_BREL12 131 /* GOT entry relative to GOT
+ origin, 12 bit (Thumb32 LDR). */
+#define R_ARM_IRELATIVE 160
#define R_ARM_RXPC25 249
#define R_ARM_RSBREL32 250
#define R_ARM_THM_RPC22 251
/* SH specific declarations */
+/* Processor specific flags for the ELF header e_flags field. */
+#define EF_SH_MACH_MASK 0x1f
+#define EF_SH_UNKNOWN 0x0
+#define EF_SH1 0x1
+#define EF_SH2 0x2
+#define EF_SH3 0x3
+#define EF_SH_DSP 0x4
+#define EF_SH3_DSP 0x5
+#define EF_SH4AL_DSP 0x6
+#define EF_SH3E 0x8
+#define EF_SH4 0x9
+#define EF_SH2E 0xb
+#define EF_SH4A 0xc
+#define EF_SH2A 0xd
+#define EF_SH4_NOFPU 0x10
+#define EF_SH4A_NOFPU 0x11
+#define EF_SH4_NOMMU_NOFPU 0x12
+#define EF_SH2A_NOFPU 0x13
+#define EF_SH3_NOMMU 0x14
+#define EF_SH2A_SH4_NOFPU 0x15
+#define EF_SH2A_SH3_NOFPU 0x16
+#define EF_SH2A_SH4 0x17
+#define EF_SH2A_SH3E 0x18
+
/* SH relocs. */
#define R_SH_NONE 0
#define R_SH_DIR32 1
/* Keep this the last entry. */
#define R_SH_NUM 256
+/* S/390 specific definitions. */
+
+/* Valid values for the e_flags field. */
+
+#define EF_S390_HIGH_GPRS 0x00000001 /* High GPRs kernel facility needed. */
+
/* Additional s390 relocs */
#define R_390_NONE 0 /* No reloc. */
#define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */
#define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS
block offset. */
+#define R_390_IRELATIVE 61 /* STT_GNU_IFUNC relocation. */
/* Keep this the last entry. */
-#define R_390_NUM 61
+#define R_390_NUM 62
/* CRIS relocations. */
#define R_X86_64_GOTOFF64 25 /* 64 bit offset to GOT */
#define R_X86_64_GOTPC32 26 /* 32 bit signed pc relative
offset to GOT */
-/* 27 .. 33 */
+#define R_X86_64_GOT64 27 /* 64-bit GOT entry offset */
+#define R_X86_64_GOTPCREL64 28 /* 64-bit PC relative offset
+ to GOT entry */
+#define R_X86_64_GOTPC64 29 /* 64-bit PC relative offset to GOT */
+#define R_X86_64_GOTPLT64 30 /* like GOT64, says PLT entry needed */
+#define R_X86_64_PLTOFF64 31 /* 64-bit GOT relative offset
+ to PLT entry */
+#define R_X86_64_SIZE32 32 /* Size of symbol plus 32-bit addend */
+#define R_X86_64_SIZE64 33 /* Size of symbol plus 64-bit addend */
#define R_X86_64_GOTPC32_TLSDESC 34 /* GOT offset for TLS descriptor. */
#define R_X86_64_TLSDESC_CALL 35 /* Marker for call through TLS
descriptor. */
#define R_X86_64_TLSDESC 36 /* TLS descriptor. */
+#define R_X86_64_IRELATIVE 37 /* Adjust indirectly by program base */
+#define R_X86_64_RELATIVE64 38 /* 64-bit adjust by program base */
-#define R_X86_64_NUM 37
+#define R_X86_64_NUM 39
/* AM33 relocations. */
#define R_MN10300_GLOB_DAT 21 /* Create GOT entry. */
#define R_MN10300_JMP_SLOT 22 /* Create PLT entry. */
#define R_MN10300_RELATIVE 23 /* Adjust by program base. */
-
-#define R_MN10300_NUM 24
+#define R_MN10300_TLS_GD 24 /* 32-bit offset for global dynamic. */
+#define R_MN10300_TLS_LD 25 /* 32-bit offset for local dynamic. */
+#define R_MN10300_TLS_LDO 26 /* Module-relative offset. */
+#define R_MN10300_TLS_GOTIE 27 /* GOT offset for static TLS block
+ offset. */
+#define R_MN10300_TLS_IE 28 /* GOT address for static TLS block
+ offset. */
+#define R_MN10300_TLS_LE 29 /* Offset relative to static TLS
+ block. */
+#define R_MN10300_TLS_DTPMOD 30 /* ID of module containing symbol. */
+#define R_MN10300_TLS_DTPOFF 31 /* Offset in module TLS block. */
+#define R_MN10300_TLS_TPOFF 32 /* Offset in static TLS block. */
+#define R_MN10300_SYM_DIFF 33 /* Adjustment for next reloc as needed
+ by linker relaxation. */
+#define R_MN10300_ALIGN 34 /* Alignment requirement for linker
+ relaxation. */
+#define R_MN10300_NUM 35
/* M32R relocs. */
#define R_M32R_GOTOFF_LO 64 /* Low 16 bit offset to GOT */
#define R_M32R_NUM 256 /* Keep this the last entry. */
+/* MicroBlaze relocations */
+#define R_MICROBLAZE_NONE 0 /* No reloc. */
+#define R_MICROBLAZE_32 1 /* Direct 32 bit. */
+#define R_MICROBLAZE_32_PCREL 2 /* PC relative 32 bit. */
+#define R_MICROBLAZE_64_PCREL 3 /* PC relative 64 bit. */
+#define R_MICROBLAZE_32_PCREL_LO 4 /* Low 16 bits of PCREL32. */
+#define R_MICROBLAZE_64 5 /* Direct 64 bit. */
+#define R_MICROBLAZE_32_LO 6 /* Low 16 bit. */
+#define R_MICROBLAZE_SRO32 7 /* Read-only small data area. */
+#define R_MICROBLAZE_SRW32 8 /* Read-write small data area. */
+#define R_MICROBLAZE_64_NONE 9 /* No reloc. */
+#define R_MICROBLAZE_32_SYM_OP_SYM 10 /* Symbol Op Symbol relocation. */
+#define R_MICROBLAZE_GNU_VTINHERIT 11 /* GNU C++ vtable hierarchy. */
+#define R_MICROBLAZE_GNU_VTENTRY 12 /* GNU C++ vtable member usage. */
+#define R_MICROBLAZE_GOTPC_64 13 /* PC-relative GOT offset. */
+#define R_MICROBLAZE_GOT_64 14 /* GOT entry offset. */
+#define R_MICROBLAZE_PLT_64 15 /* PLT offset (PC-relative). */
+#define R_MICROBLAZE_REL 16 /* Adjust by program base. */
+#define R_MICROBLAZE_JUMP_SLOT 17 /* Create PLT entry. */
+#define R_MICROBLAZE_GLOB_DAT 18 /* Create GOT entry. */
+#define R_MICROBLAZE_GOTOFF_64 19 /* 64 bit offset to GOT. */
+#define R_MICROBLAZE_GOTOFF_32 20 /* 32 bit offset to GOT. */
+#define R_MICROBLAZE_COPY 21 /* Runtime copy. */
+#define R_MICROBLAZE_TLS 22 /* TLS Reloc. */
+#define R_MICROBLAZE_TLSGD 23 /* TLS General Dynamic. */
+#define R_MICROBLAZE_TLSLD 24 /* TLS Local Dynamic. */
+#define R_MICROBLAZE_TLSDTPMOD32 25 /* TLS Module ID. */
+#define R_MICROBLAZE_TLSDTPREL32 26 /* TLS Offset Within TLS Block. */
+#define R_MICROBLAZE_TLSDTPREL64 27 /* TLS Offset Within TLS Block. */
+#define R_MICROBLAZE_TLSGOTTPREL32 28 /* TLS Offset From Thread Pointer. */
+#define R_MICROBLAZE_TLSTPREL32 29 /* TLS Offset From Thread Pointer. */
+
+/* TILEPro relocations. */
+#define R_TILEPRO_NONE 0 /* No reloc */
+#define R_TILEPRO_32 1 /* Direct 32 bit */
+#define R_TILEPRO_16 2 /* Direct 16 bit */
+#define R_TILEPRO_8 3 /* Direct 8 bit */
+#define R_TILEPRO_32_PCREL 4 /* PC relative 32 bit */
+#define R_TILEPRO_16_PCREL 5 /* PC relative 16 bit */
+#define R_TILEPRO_8_PCREL 6 /* PC relative 8 bit */
+#define R_TILEPRO_LO16 7 /* Low 16 bit */
+#define R_TILEPRO_HI16 8 /* High 16 bit */
+#define R_TILEPRO_HA16 9 /* High 16 bit, adjusted */
+#define R_TILEPRO_COPY 10 /* Copy relocation */
+#define R_TILEPRO_GLOB_DAT 11 /* Create GOT entry */
+#define R_TILEPRO_JMP_SLOT 12 /* Create PLT entry */
+#define R_TILEPRO_RELATIVE 13 /* Adjust by program base */
+#define R_TILEPRO_BROFF_X1 14 /* X1 pipe branch offset */
+#define R_TILEPRO_JOFFLONG_X1 15 /* X1 pipe jump offset */
+#define R_TILEPRO_JOFFLONG_X1_PLT 16 /* X1 pipe jump offset to PLT */
+#define R_TILEPRO_IMM8_X0 17 /* X0 pipe 8-bit */
+#define R_TILEPRO_IMM8_Y0 18 /* Y0 pipe 8-bit */
+#define R_TILEPRO_IMM8_X1 19 /* X1 pipe 8-bit */
+#define R_TILEPRO_IMM8_Y1 20 /* Y1 pipe 8-bit */
+#define R_TILEPRO_MT_IMM15_X1 21 /* X1 pipe mtspr */
+#define R_TILEPRO_MF_IMM15_X1 22 /* X1 pipe mfspr */
+#define R_TILEPRO_IMM16_X0 23 /* X0 pipe 16-bit */
+#define R_TILEPRO_IMM16_X1 24 /* X1 pipe 16-bit */
+#define R_TILEPRO_IMM16_X0_LO 25 /* X0 pipe low 16-bit */
+#define R_TILEPRO_IMM16_X1_LO 26 /* X1 pipe low 16-bit */
+#define R_TILEPRO_IMM16_X0_HI 27 /* X0 pipe high 16-bit */
+#define R_TILEPRO_IMM16_X1_HI 28 /* X1 pipe high 16-bit */
+#define R_TILEPRO_IMM16_X0_HA 29 /* X0 pipe high 16-bit, adjusted */
+#define R_TILEPRO_IMM16_X1_HA 30 /* X1 pipe high 16-bit, adjusted */
+#define R_TILEPRO_IMM16_X0_PCREL 31 /* X0 pipe PC relative 16 bit */
+#define R_TILEPRO_IMM16_X1_PCREL 32 /* X1 pipe PC relative 16 bit */
+#define R_TILEPRO_IMM16_X0_LO_PCREL 33 /* X0 pipe PC relative low 16 bit */
+#define R_TILEPRO_IMM16_X1_LO_PCREL 34 /* X1 pipe PC relative low 16 bit */
+#define R_TILEPRO_IMM16_X0_HI_PCREL 35 /* X0 pipe PC relative high 16 bit */
+#define R_TILEPRO_IMM16_X1_HI_PCREL 36 /* X1 pipe PC relative high 16 bit */
+#define R_TILEPRO_IMM16_X0_HA_PCREL 37 /* X0 pipe PC relative ha() 16 bit */
+#define R_TILEPRO_IMM16_X1_HA_PCREL 38 /* X1 pipe PC relative ha() 16 bit */
+#define R_TILEPRO_IMM16_X0_GOT 39 /* X0 pipe 16-bit GOT offset */
+#define R_TILEPRO_IMM16_X1_GOT 40 /* X1 pipe 16-bit GOT offset */
+#define R_TILEPRO_IMM16_X0_GOT_LO 41 /* X0 pipe low 16-bit GOT offset */
+#define R_TILEPRO_IMM16_X1_GOT_LO 42 /* X1 pipe low 16-bit GOT offset */
+#define R_TILEPRO_IMM16_X0_GOT_HI 43 /* X0 pipe high 16-bit GOT offset */
+#define R_TILEPRO_IMM16_X1_GOT_HI 44 /* X1 pipe high 16-bit GOT offset */
+#define R_TILEPRO_IMM16_X0_GOT_HA 45 /* X0 pipe ha() 16-bit GOT offset */
+#define R_TILEPRO_IMM16_X1_GOT_HA 46 /* X1 pipe ha() 16-bit GOT offset */
+#define R_TILEPRO_MMSTART_X0 47 /* X0 pipe mm "start" */
+#define R_TILEPRO_MMEND_X0 48 /* X0 pipe mm "end" */
+#define R_TILEPRO_MMSTART_X1 49 /* X1 pipe mm "start" */
+#define R_TILEPRO_MMEND_X1 50 /* X1 pipe mm "end" */
+#define R_TILEPRO_SHAMT_X0 51 /* X0 pipe shift amount */
+#define R_TILEPRO_SHAMT_X1 52 /* X1 pipe shift amount */
+#define R_TILEPRO_SHAMT_Y0 53 /* Y0 pipe shift amount */
+#define R_TILEPRO_SHAMT_Y1 54 /* Y1 pipe shift amount */
+#define R_TILEPRO_DEST_IMM8_X1 55 /* X1 pipe destination 8-bit */
+/* Relocs 56-59 are currently not defined. */
+#define R_TILEPRO_TLS_GD_CALL 60 /* "jal" for TLS GD */
+#define R_TILEPRO_IMM8_X0_TLS_GD_ADD 61 /* X0 pipe "addi" for TLS GD */
+#define R_TILEPRO_IMM8_X1_TLS_GD_ADD 62 /* X1 pipe "addi" for TLS GD */
+#define R_TILEPRO_IMM8_Y0_TLS_GD_ADD 63 /* Y0 pipe "addi" for TLS GD */
+#define R_TILEPRO_IMM8_Y1_TLS_GD_ADD 64 /* Y1 pipe "addi" for TLS GD */
+#define R_TILEPRO_TLS_IE_LOAD 65 /* "lw_tls" for TLS IE */
+#define R_TILEPRO_IMM16_X0_TLS_GD 66 /* X0 pipe 16-bit TLS GD offset */
+#define R_TILEPRO_IMM16_X1_TLS_GD 67 /* X1 pipe 16-bit TLS GD offset */
+#define R_TILEPRO_IMM16_X0_TLS_GD_LO 68 /* X0 pipe low 16-bit TLS GD offset */
+#define R_TILEPRO_IMM16_X1_TLS_GD_LO 69 /* X1 pipe low 16-bit TLS GD offset */
+#define R_TILEPRO_IMM16_X0_TLS_GD_HI 70 /* X0 pipe high 16-bit TLS GD offset */
+#define R_TILEPRO_IMM16_X1_TLS_GD_HI 71 /* X1 pipe high 16-bit TLS GD offset */
+#define R_TILEPRO_IMM16_X0_TLS_GD_HA 72 /* X0 pipe ha() 16-bit TLS GD offset */
+#define R_TILEPRO_IMM16_X1_TLS_GD_HA 73 /* X1 pipe ha() 16-bit TLS GD offset */
+#define R_TILEPRO_IMM16_X0_TLS_IE 74 /* X0 pipe 16-bit TLS IE offset */
+#define R_TILEPRO_IMM16_X1_TLS_IE 75 /* X1 pipe 16-bit TLS IE offset */
+#define R_TILEPRO_IMM16_X0_TLS_IE_LO 76 /* X0 pipe low 16-bit TLS IE offset */
+#define R_TILEPRO_IMM16_X1_TLS_IE_LO 77 /* X1 pipe low 16-bit TLS IE offset */
+#define R_TILEPRO_IMM16_X0_TLS_IE_HI 78 /* X0 pipe high 16-bit TLS IE offset */
+#define R_TILEPRO_IMM16_X1_TLS_IE_HI 79 /* X1 pipe high 16-bit TLS IE offset */
+#define R_TILEPRO_IMM16_X0_TLS_IE_HA 80 /* X0 pipe ha() 16-bit TLS IE offset */
+#define R_TILEPRO_IMM16_X1_TLS_IE_HA 81 /* X1 pipe ha() 16-bit TLS IE offset */
+#define R_TILEPRO_TLS_DTPMOD32 82 /* ID of module containing symbol */
+#define R_TILEPRO_TLS_DTPOFF32 83 /* Offset in TLS block */
+#define R_TILEPRO_TLS_TPOFF32 84 /* Offset in static TLS block */
+#define R_TILEPRO_IMM16_X0_TLS_LE 85 /* X0 pipe 16-bit TLS LE offset */
+#define R_TILEPRO_IMM16_X1_TLS_LE 86 /* X1 pipe 16-bit TLS LE offset */
+#define R_TILEPRO_IMM16_X0_TLS_LE_LO 87 /* X0 pipe low 16-bit TLS LE offset */
+#define R_TILEPRO_IMM16_X1_TLS_LE_LO 88 /* X1 pipe low 16-bit TLS LE offset */
+#define R_TILEPRO_IMM16_X0_TLS_LE_HI 89 /* X0 pipe high 16-bit TLS LE offset */
+#define R_TILEPRO_IMM16_X1_TLS_LE_HI 90 /* X1 pipe high 16-bit TLS LE offset */
+#define R_TILEPRO_IMM16_X0_TLS_LE_HA 91 /* X0 pipe ha() 16-bit TLS LE offset */
+#define R_TILEPRO_IMM16_X1_TLS_LE_HA 92 /* X1 pipe ha() 16-bit TLS LE offset */
+
+#define R_TILEPRO_GNU_VTINHERIT 128 /* GNU C++ vtable hierarchy */
+#define R_TILEPRO_GNU_VTENTRY 129 /* GNU C++ vtable member usage */
+
+#define R_TILEPRO_NUM 130
+
+
+/* TILE-Gx relocations. */
+#define R_TILEGX_NONE 0 /* No reloc */
+#define R_TILEGX_64 1 /* Direct 64 bit */
+#define R_TILEGX_32 2 /* Direct 32 bit */
+#define R_TILEGX_16 3 /* Direct 16 bit */
+#define R_TILEGX_8 4 /* Direct 8 bit */
+#define R_TILEGX_64_PCREL 5 /* PC relative 64 bit */
+#define R_TILEGX_32_PCREL 6 /* PC relative 32 bit */
+#define R_TILEGX_16_PCREL 7 /* PC relative 16 bit */
+#define R_TILEGX_8_PCREL 8 /* PC relative 8 bit */
+#define R_TILEGX_HW0 9 /* hword 0 16-bit */
+#define R_TILEGX_HW1 10 /* hword 1 16-bit */
+#define R_TILEGX_HW2 11 /* hword 2 16-bit */
+#define R_TILEGX_HW3 12 /* hword 3 16-bit */
+#define R_TILEGX_HW0_LAST 13 /* last hword 0 16-bit */
+#define R_TILEGX_HW1_LAST 14 /* last hword 1 16-bit */
+#define R_TILEGX_HW2_LAST 15 /* last hword 2 16-bit */
+#define R_TILEGX_COPY 16 /* Copy relocation */
+#define R_TILEGX_GLOB_DAT 17 /* Create GOT entry */
+#define R_TILEGX_JMP_SLOT 18 /* Create PLT entry */
+#define R_TILEGX_RELATIVE 19 /* Adjust by program base */
+#define R_TILEGX_BROFF_X1 20 /* X1 pipe branch offset */
+#define R_TILEGX_JUMPOFF_X1 21 /* X1 pipe jump offset */
+#define R_TILEGX_JUMPOFF_X1_PLT 22 /* X1 pipe jump offset to PLT */
+#define R_TILEGX_IMM8_X0 23 /* X0 pipe 8-bit */
+#define R_TILEGX_IMM8_Y0 24 /* Y0 pipe 8-bit */
+#define R_TILEGX_IMM8_X1 25 /* X1 pipe 8-bit */
+#define R_TILEGX_IMM8_Y1 26 /* Y1 pipe 8-bit */
+#define R_TILEGX_DEST_IMM8_X1 27 /* X1 pipe destination 8-bit */
+#define R_TILEGX_MT_IMM14_X1 28 /* X1 pipe mtspr */
+#define R_TILEGX_MF_IMM14_X1 29 /* X1 pipe mfspr */
+#define R_TILEGX_MMSTART_X0 30 /* X0 pipe mm "start" */
+#define R_TILEGX_MMEND_X0 31 /* X0 pipe mm "end" */
+#define R_TILEGX_SHAMT_X0 32 /* X0 pipe shift amount */
+#define R_TILEGX_SHAMT_X1 33 /* X1 pipe shift amount */
+#define R_TILEGX_SHAMT_Y0 34 /* Y0 pipe shift amount */
+#define R_TILEGX_SHAMT_Y1 35 /* Y1 pipe shift amount */
+#define R_TILEGX_IMM16_X0_HW0 36 /* X0 pipe hword 0 */
+#define R_TILEGX_IMM16_X1_HW0 37 /* X1 pipe hword 0 */
+#define R_TILEGX_IMM16_X0_HW1 38 /* X0 pipe hword 1 */
+#define R_TILEGX_IMM16_X1_HW1 39 /* X1 pipe hword 1 */
+#define R_TILEGX_IMM16_X0_HW2 40 /* X0 pipe hword 2 */
+#define R_TILEGX_IMM16_X1_HW2 41 /* X1 pipe hword 2 */
+#define R_TILEGX_IMM16_X0_HW3 42 /* X0 pipe hword 3 */
+#define R_TILEGX_IMM16_X1_HW3 43 /* X1 pipe hword 3 */
+#define R_TILEGX_IMM16_X0_HW0_LAST 44 /* X0 pipe last hword 0 */
+#define R_TILEGX_IMM16_X1_HW0_LAST 45 /* X1 pipe last hword 0 */
+#define R_TILEGX_IMM16_X0_HW1_LAST 46 /* X0 pipe last hword 1 */
+#define R_TILEGX_IMM16_X1_HW1_LAST 47 /* X1 pipe last hword 1 */
+#define R_TILEGX_IMM16_X0_HW2_LAST 48 /* X0 pipe last hword 2 */
+#define R_TILEGX_IMM16_X1_HW2_LAST 49 /* X1 pipe last hword 2 */
+#define R_TILEGX_IMM16_X0_HW0_PCREL 50 /* X0 pipe PC relative hword 0 */
+#define R_TILEGX_IMM16_X1_HW0_PCREL 51 /* X1 pipe PC relative hword 0 */
+#define R_TILEGX_IMM16_X0_HW1_PCREL 52 /* X0 pipe PC relative hword 1 */
+#define R_TILEGX_IMM16_X1_HW1_PCREL 53 /* X1 pipe PC relative hword 1 */
+#define R_TILEGX_IMM16_X0_HW2_PCREL 54 /* X0 pipe PC relative hword 2 */
+#define R_TILEGX_IMM16_X1_HW2_PCREL 55 /* X1 pipe PC relative hword 2 */
+#define R_TILEGX_IMM16_X0_HW3_PCREL 56 /* X0 pipe PC relative hword 3 */
+#define R_TILEGX_IMM16_X1_HW3_PCREL 57 /* X1 pipe PC relative hword 3 */
+#define R_TILEGX_IMM16_X0_HW0_LAST_PCREL 58 /* X0 pipe PC-rel last hword 0 */
+#define R_TILEGX_IMM16_X1_HW0_LAST_PCREL 59 /* X1 pipe PC-rel last hword 0 */
+#define R_TILEGX_IMM16_X0_HW1_LAST_PCREL 60 /* X0 pipe PC-rel last hword 1 */
+#define R_TILEGX_IMM16_X1_HW1_LAST_PCREL 61 /* X1 pipe PC-rel last hword 1 */
+#define R_TILEGX_IMM16_X0_HW2_LAST_PCREL 62 /* X0 pipe PC-rel last hword 2 */
+#define R_TILEGX_IMM16_X1_HW2_LAST_PCREL 63 /* X1 pipe PC-rel last hword 2 */
+#define R_TILEGX_IMM16_X0_HW0_GOT 64 /* X0 pipe hword 0 GOT offset */
+#define R_TILEGX_IMM16_X1_HW0_GOT 65 /* X1 pipe hword 0 GOT offset */
+#define R_TILEGX_IMM16_X0_HW0_PLT_PCREL 66 /* X0 pipe PC-rel PLT hword 0 */
+#define R_TILEGX_IMM16_X1_HW0_PLT_PCREL 67 /* X1 pipe PC-rel PLT hword 0 */
+#define R_TILEGX_IMM16_X0_HW1_PLT_PCREL 68 /* X0 pipe PC-rel PLT hword 1 */
+#define R_TILEGX_IMM16_X1_HW1_PLT_PCREL 69 /* X1 pipe PC-rel PLT hword 1 */
+#define R_TILEGX_IMM16_X0_HW2_PLT_PCREL 70 /* X0 pipe PC-rel PLT hword 2 */
+#define R_TILEGX_IMM16_X1_HW2_PLT_PCREL 71 /* X1 pipe PC-rel PLT hword 2 */
+#define R_TILEGX_IMM16_X0_HW0_LAST_GOT 72 /* X0 pipe last hword 0 GOT offset */
+#define R_TILEGX_IMM16_X1_HW0_LAST_GOT 73 /* X1 pipe last hword 0 GOT offset */
+#define R_TILEGX_IMM16_X0_HW1_LAST_GOT 74 /* X0 pipe last hword 1 GOT offset */
+#define R_TILEGX_IMM16_X1_HW1_LAST_GOT 75 /* X1 pipe last hword 1 GOT offset */
+#define R_TILEGX_IMM16_X0_HW3_PLT_PCREL 76 /* X0 pipe PC-rel PLT hword 3 */
+#define R_TILEGX_IMM16_X1_HW3_PLT_PCREL 77 /* X1 pipe PC-rel PLT hword 3 */
+#define R_TILEGX_IMM16_X0_HW0_TLS_GD 78 /* X0 pipe hword 0 TLS GD offset */
+#define R_TILEGX_IMM16_X1_HW0_TLS_GD 79 /* X1 pipe hword 0 TLS GD offset */
+#define R_TILEGX_IMM16_X0_HW0_TLS_LE 80 /* X0 pipe hword 0 TLS LE offset */
+#define R_TILEGX_IMM16_X1_HW0_TLS_LE 81 /* X1 pipe hword 0 TLS LE offset */
+#define R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE 82 /* X0 pipe last hword 0 LE off */
+#define R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE 83 /* X1 pipe last hword 0 LE off */
+#define R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE 84 /* X0 pipe last hword 1 LE off */
+#define R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE 85 /* X1 pipe last hword 1 LE off */
+#define R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD 86 /* X0 pipe last hword 0 GD off */
+#define R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD 87 /* X1 pipe last hword 0 GD off */
+#define R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD 88 /* X0 pipe last hword 1 GD off */
+#define R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD 89 /* X1 pipe last hword 1 GD off */
+/* Relocs 90-91 are currently not defined. */
+#define R_TILEGX_IMM16_X0_HW0_TLS_IE 92 /* X0 pipe hword 0 TLS IE offset */
+#define R_TILEGX_IMM16_X1_HW0_TLS_IE 93 /* X1 pipe hword 0 TLS IE offset */
+#define R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL 94 /* X0 pipe PC-rel PLT last hword 0 */
+#define R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL 95 /* X1 pipe PC-rel PLT last hword 0 */
+#define R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL 96 /* X0 pipe PC-rel PLT last hword 1 */
+#define R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL 97 /* X1 pipe PC-rel PLT last hword 1 */
+#define R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL 98 /* X0 pipe PC-rel PLT last hword 2 */
+#define R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL 99 /* X1 pipe PC-rel PLT last hword 2 */
+#define R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE 100 /* X0 pipe last hword 0 IE off */
+#define R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE 101 /* X1 pipe last hword 0 IE off */
+#define R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE 102 /* X0 pipe last hword 1 IE off */
+#define R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE 103 /* X1 pipe last hword 1 IE off */
+/* Relocs 104-105 are currently not defined. */
+#define R_TILEGX_TLS_DTPMOD64 106 /* 64-bit ID of symbol's module */
+#define R_TILEGX_TLS_DTPOFF64 107 /* 64-bit offset in TLS block */
+#define R_TILEGX_TLS_TPOFF64 108 /* 64-bit offset in static TLS block */
+#define R_TILEGX_TLS_DTPMOD32 109 /* 32-bit ID of symbol's module */
+#define R_TILEGX_TLS_DTPOFF32 110 /* 32-bit offset in TLS block */
+#define R_TILEGX_TLS_TPOFF32 111 /* 32-bit offset in static TLS block */
+#define R_TILEGX_TLS_GD_CALL 112 /* "jal" for TLS GD */
+#define R_TILEGX_IMM8_X0_TLS_GD_ADD 113 /* X0 pipe "addi" for TLS GD */
+#define R_TILEGX_IMM8_X1_TLS_GD_ADD 114 /* X1 pipe "addi" for TLS GD */
+#define R_TILEGX_IMM8_Y0_TLS_GD_ADD 115 /* Y0 pipe "addi" for TLS GD */
+#define R_TILEGX_IMM8_Y1_TLS_GD_ADD 116 /* Y1 pipe "addi" for TLS GD */
+#define R_TILEGX_TLS_IE_LOAD 117 /* "ld_tls" for TLS IE */
+#define R_TILEGX_IMM8_X0_TLS_ADD 118 /* X0 pipe "addi" for TLS GD/IE */
+#define R_TILEGX_IMM8_X1_TLS_ADD 119 /* X1 pipe "addi" for TLS GD/IE */
+#define R_TILEGX_IMM8_Y0_TLS_ADD 120 /* Y0 pipe "addi" for TLS GD/IE */
+#define R_TILEGX_IMM8_Y1_TLS_ADD 121 /* Y1 pipe "addi" for TLS GD/IE */
+
+#define R_TILEGX_GNU_VTINHERIT 128 /* GNU C++ vtable hierarchy */
+#define R_TILEGX_GNU_VTENTRY 129 /* GNU C++ vtable member usage */
+
+#define R_TILEGX_NUM 130
+
+
+/* __END_DECLS */
#endif /* elf.h */
+/*
+ * PatchELF is a utility to modify properties of ELF executables and libraries
+ * Copyright (C) 2004-2016 Eelco Dolstra <edolstra@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
#include <string>
#include <vector>
#include <set>
#include <map>
#include <algorithm>
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <assert.h>
-#include <string.h>
-#include <errno.h>
+#include <memory>
+#include <sstream>
+#include <limits>
+#include <stdexcept>
+
+#include <cstdlib>
+#include <cstdio>
+#include <cstdarg>
+#include <cassert>
+#include <cstring>
+#include <cerrno>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
-#include <limits.h>
#include "elf.h"
-using namespace std;
+static bool debugMode = false;
-#ifdef MIPSEL
-/* The lemote fuloong 2f kernel defconfig sets a page size of 16KB */
-const unsigned int pageSize = 4096*4;
-#else
-const unsigned int pageSize = 4096;
-#endif
+static bool forceRPath = false;
+static std::vector<std::string> fileNames;
+static int pageSize = PAGESIZE;
-static bool debugMode = false;
+typedef std::shared_ptr<std::vector<unsigned char>> FileContents;
-static bool forceRPath = false;
-static string fileName;
+#define ElfFileParams class Elf_Ehdr, class Elf_Phdr, class Elf_Shdr, class Elf_Addr, class Elf_Off, class Elf_Dyn, class Elf_Sym, class Elf_Verneed
+#define ElfFileParamNames Elf_Ehdr, Elf_Phdr, Elf_Shdr, Elf_Addr, Elf_Off, Elf_Dyn, Elf_Sym, Elf_Verneed
-off_t fileSize, maxSize;
-unsigned char * contents = 0;
+static std::vector<std::string> splitColonDelimitedString(const char * s)
+{
+ std::vector<std::string> parts;
+ const char * pos = s;
+ while (*pos) {
+ const char * end = strchr(pos, ':');
+ if (!end) end = strchr(pos, 0);
+
+ parts.push_back(std::string(pos, end - pos));
+ if (*end == ':') ++end;
+ pos = end;
+ }
+ return parts;
+}
-#define ElfFileParams class Elf_Ehdr, class Elf_Phdr, class Elf_Shdr, class Elf_Addr, class Elf_Off, class Elf_Dyn, class Elf_Sym
-#define ElfFileParamNames Elf_Ehdr, Elf_Phdr, Elf_Shdr, Elf_Addr, Elf_Off, Elf_Dyn, Elf_Sym
+static bool hasAllowedPrefix(const std::string & s, const std::vector<std::string> & allowedPrefixes)
+{
+ for (auto & i : allowedPrefixes)
+ if (!s.compare(0, i.size(), i)) return true;
+ return false;
+}
+
+
+static unsigned int getPageSize()
+{
+ return pageSize;
+}
template<ElfFileParams>
class ElfFile
{
+public:
+
+ const FileContents fileContents;
+
+private:
+
+ unsigned char * contents;
+
Elf_Ehdr * hdr;
- vector<Elf_Phdr> phdrs;
- vector<Elf_Shdr> shdrs;
+ std::vector<Elf_Phdr> phdrs;
+ std::vector<Elf_Shdr> shdrs;
bool littleEndian;
- bool changed;
+ bool changed = false;
- bool isExecutable;
+ bool isExecutable = false;
- typedef string SectionName;
- typedef map<SectionName, string> ReplacedSections;
+ typedef std::string SectionName;
+ typedef std::map<SectionName, std::string> ReplacedSections;
ReplacedSections replacedSections;
- string sectionNames; /* content of the .shstrtab section */
+ std::string sectionNames; /* content of the .shstrtab section */
/* Align on 4 or 8 bytes boundaries on 32- or 64-bit platforms
respectively. */
- unsigned int sectionAlignment;
+ size_t sectionAlignment = sizeof(Elf_Off);
- vector<SectionName> sectionsByOldIndex;
+ std::vector<SectionName> sectionsByOldIndex;
public:
- ElfFile()
- {
- changed = false;
- sectionAlignment = sizeof(Elf_Off);
- }
+ ElfFile(FileContents fileContents);
bool isChanged()
{
return changed;
}
- void parse();
-
private:
struct CompPhdr
ElfFile * elfFile;
bool operator ()(const Elf_Phdr & x, const Elf_Phdr & y)
{
- if (x.p_type == PT_PHDR) return true;
+ // A PHDR comes before everything else.
if (y.p_type == PT_PHDR) return false;
+ if (x.p_type == PT_PHDR) return true;
+
+ // Sort non-PHDRs by address.
return elfFile->rdi(x.p_paddr) < elfFile->rdi(y.p_paddr);
}
};
void shiftFile(unsigned int extraPages, Elf_Addr startPage);
- string getSectionName(const Elf_Shdr & shdr);
+ std::string getSectionName(const Elf_Shdr & shdr);
Elf_Shdr & findSection(const SectionName & sectionName);
unsigned int findSection3(const SectionName & sectionName);
- string & replaceSection(const SectionName & sectionName,
+ std::string & replaceSection(const SectionName & sectionName,
unsigned int size);
+ bool haveReplacedSection(const SectionName & sectionName);
+
void writeReplacedSections(Elf_Off & curOff,
Elf_Addr startAddr, Elf_Off startOffset);
void rewriteSections();
- string getInterpreter();
+ std::string getInterpreter();
- void setInterpreter(const string & newInterpreter);
+ typedef enum { printSoname, replaceSoname } sonameMode;
- typedef enum { rpPrint, rpShrink, rpSet } RPathOp;
+ void modifySoname(sonameMode op, const std::string & newSoname);
- void modifyRPath(RPathOp op, string newRPath);
+ void setInterpreter(const std::string & newInterpreter);
- void removeNeeded(set<string> libs);
+ typedef enum { rpPrint, rpShrink, rpSet, rpRemove } RPathOp;
+
+ void modifyRPath(RPathOp op, const std::vector<std::string> & allowedRpathPrefixes, std::string newRPath);
+
+ void addNeeded(const std::set<std::string> & libs);
+
+ void removeNeeded(const std::set<std::string> & libs);
+
+ void replaceNeeded(const std::map<std::string, std::string> & libs);
+
+ void printNeededLibs();
+
+ void noDefaultLib();
private:
}
-static void error(string msg)
+void fmt2(std::ostringstream & out)
+{
+}
+
+
+template<typename T, typename... Args>
+void fmt2(std::ostringstream & out, T x, Args... args)
+{
+ out << x;
+ fmt2(out, args...);
+}
+
+
+template<typename... Args>
+std::string fmt(Args... args)
{
- if (errno) perror(msg.c_str()); else fprintf(stderr, "%s\n", msg.c_str());
- exit(1);
+ std::ostringstream out;
+ fmt2(out, args...);
+ return out.str();
}
-static void growFile(off_t newSize)
+struct SysError : std::runtime_error
{
- if (newSize > maxSize) error("maximum file size exceeded");
- if (newSize <= fileSize) return;
- if (newSize > fileSize)
- memset(contents + fileSize, 0, newSize - fileSize);
- fileSize = newSize;
+ int errNo;
+ SysError(const std::string & msg)
+ : std::runtime_error(fmt(msg + ": " + strerror(errno)))
+ , errNo(errno)
+ { }
+};
+
+
+__attribute__((noreturn)) static void error(std::string msg)
+{
+ if (errno)
+ throw SysError(msg);
+ else
+ throw std::runtime_error(msg);
}
-static void readFile(string fileName, mode_t * fileMode)
+static void growFile(FileContents contents, size_t newSize)
+{
+ if (newSize > contents->capacity()) error("maximum file size exceeded");
+ if (newSize <= contents->size()) return;
+ contents->resize(newSize, 0);
+}
+
+
+static FileContents readFile(std::string fileName,
+ size_t cutOff = std::numeric_limits<size_t>::max())
{
struct stat st;
- if (stat(fileName.c_str(), &st) != 0) error("stat");
- fileSize = st.st_size;
- *fileMode = st.st_mode;
- maxSize = fileSize + 8 * 1024 * 1024;
+ if (stat(fileName.c_str(), &st) != 0)
+ throw SysError(fmt("getting info about '", fileName, "'"));
+
+ if ((uint64_t) st.st_size > (uint64_t) std::numeric_limits<size_t>::max())
+ throw SysError(fmt("cannot read file of size ", st.st_size, " into memory"));
+
+ size_t size = std::min(cutOff, (size_t) st.st_size);
- contents = (unsigned char *) malloc(fileSize + maxSize);
- if (!contents) abort();
+ FileContents contents = std::make_shared<std::vector<unsigned char>>();
+ contents->reserve(size + 32 * 1024 * 1024);
+ contents->resize(size, 0);
int fd = open(fileName.c_str(), O_RDONLY);
- if (fd == -1) error("open");
+ if (fd == -1) throw SysError(fmt("opening '", fileName, "'"));
- if (read(fd, contents, fileSize) != fileSize) error("read");
+ size_t bytesRead = 0;
+ ssize_t portion;
+ while ((portion = read(fd, contents->data() + bytesRead, size - bytesRead)) > 0)
+ bytesRead += portion;
+
+ if (bytesRead != size)
+ throw SysError(fmt("reading '", fileName, "'"));
close(fd);
+
+ return contents;
}
-static void checkPointer(void * p, unsigned int size)
+struct ElfType
+{
+ bool is32Bit;
+ int machine; // one of EM_*
+};
+
+
+ElfType getElfType(const FileContents & fileContents)
+{
+ /* Check the ELF header for basic validity. */
+ if (fileContents->size() < (off_t) sizeof(Elf32_Ehdr)) error("missing ELF header");
+
+ auto contents = fileContents->data();
+
+ if (memcmp(contents, ELFMAG, SELFMAG) != 0)
+ error("not an ELF executable");
+
+ if (contents[EI_VERSION] != EV_CURRENT)
+ error("unsupported ELF version");
+
+ if (contents[EI_CLASS] != ELFCLASS32 && contents[EI_CLASS] != ELFCLASS64)
+ error("ELF executable is not 32 or 64 bit");
+
+ bool is32Bit = contents[EI_CLASS] == ELFCLASS32;
+
+ // FIXME: endianness
+ return ElfType{is32Bit, is32Bit ? ((Elf32_Ehdr *) contents)->e_machine : ((Elf64_Ehdr *) contents)->e_machine};
+}
+
+
+static void checkPointer(const FileContents & contents, void * p, unsigned int size)
{
unsigned char * q = (unsigned char *) p;
- assert(q >= contents && q + size <= contents + fileSize);
+ assert(q >= contents->data() && q + size <= contents->data() + contents->size());
}
template<ElfFileParams>
-void ElfFile<ElfFileParamNames>::parse()
+ElfFile<ElfFileParamNames>::ElfFile(FileContents fileContents)
+ : fileContents(fileContents)
+ , contents(fileContents->data())
{
- isExecutable = false;
-
/* Check the ELF header for basic validity. */
- if (fileSize < (off_t) sizeof(Elf_Ehdr)) error("missing ELF header");
+ if (fileContents->size() < (off_t) sizeof(Elf_Ehdr)) error("missing ELF header");
- hdr = (Elf_Ehdr *) contents;
+ hdr = (Elf_Ehdr *) fileContents->data();
if (memcmp(hdr->e_ident, ELFMAG, SELFMAG) != 0)
error("not an ELF executable");
- littleEndian = contents[EI_DATA] == ELFDATA2LSB;
+ littleEndian = hdr->e_ident[EI_DATA] == ELFDATA2LSB;
if (rdi(hdr->e_type) != ET_EXEC && rdi(hdr->e_type) != ET_DYN)
error("wrong ELF type");
- if ((off_t) (rdi(hdr->e_phoff) + rdi(hdr->e_phnum) * rdi(hdr->e_phentsize)) > fileSize)
- error("missing program headers");
+ if ((size_t) (rdi(hdr->e_phoff) + rdi(hdr->e_phnum) * rdi(hdr->e_phentsize)) > fileContents->size())
+ error("program header table out of bounds");
- if ((off_t) (rdi(hdr->e_shoff) + rdi(hdr->e_shnum) * rdi(hdr->e_shentsize)) > fileSize)
- error("missing section headers");
+ if (rdi(hdr->e_shnum) == 0)
+ error("no section headers. The input file is probably a statically linked, self-decompressing binary");
+
+ if ((size_t) (rdi(hdr->e_shoff) + rdi(hdr->e_shnum) * rdi(hdr->e_shentsize)) > fileContents->size())
+ error("section header table out of bounds");
if (rdi(hdr->e_phentsize) != sizeof(Elf_Phdr))
error("program headers have wrong size");
assert(shstrtabIndex < shdrs.size());
unsigned int shstrtabSize = rdi(shdrs[shstrtabIndex].sh_size);
char * shstrtab = (char * ) contents + rdi(shdrs[shstrtabIndex].sh_offset);
- checkPointer(shstrtab, shstrtabSize);
+ checkPointer(fileContents, shstrtab, shstrtabSize);
assert(shstrtabSize > 0);
assert(shstrtab[shstrtabSize - 1] == 0);
- sectionNames = string(shstrtab, shstrtabSize);
+ sectionNames = std::string(shstrtab, shstrtabSize);
sectionsByOldIndex.resize(hdr->e_shnum);
for (unsigned int i = 1; i < rdi(hdr->e_shnum); ++i)
{
/* Translate sh_link mappings to section names, since sorting the
sections will invalidate the sh_link fields. */
- map<SectionName, SectionName> linkage;
+ std::map<SectionName, SectionName> linkage;
for (unsigned int i = 1; i < rdi(hdr->e_shnum); ++i)
if (rdi(shdrs[i].sh_link) != 0)
linkage[getSectionName(shdrs[i])] = getSectionName(shdrs[rdi(shdrs[i].sh_link)]);
/* Idem for sh_info on certain sections. */
- map<SectionName, SectionName> info;
+ std::map<SectionName, SectionName> info;
for (unsigned int i = 1; i < rdi(hdr->e_shnum); ++i)
if (rdi(shdrs[i].sh_info) != 0 &&
(rdi(shdrs[i].sh_type) == SHT_REL || rdi(shdrs[i].sh_type) == SHT_RELA))
}
-static void writeFile(string fileName, mode_t fileMode)
+static void writeFile(std::string fileName, FileContents contents)
{
- string fileName2 = fileName + "_patchelf_tmp";
-
- int fd = open(fileName2.c_str(),
- O_CREAT | O_TRUNC | O_WRONLY, 0700);
- if (fd == -1) error("open");
+ int fd = open(fileName.c_str(), O_TRUNC | O_WRONLY);
+ if (fd == -1)
+ error("open");
- if (write(fd, contents, fileSize) != fileSize) error("write");
+ size_t bytesWritten = 0;
+ ssize_t portion;
+ while ((portion = write(fd, contents->data() + bytesWritten, contents->size() - bytesWritten)) > 0)
+ bytesWritten += portion;
- if (close(fd) != 0) error("close");
+ if (bytesWritten != contents->size())
+ error("write");
- if (chmod(fileName2.c_str(), fileMode) != 0) error("chmod");
-
- if (rename(fileName2.c_str(), fileName.c_str()) != 0) error("rename");
+ if (close(fd) != 0)
+ error("close");
}
template<ElfFileParams>
void ElfFile<ElfFileParamNames>::shiftFile(unsigned int extraPages, Elf_Addr startPage)
{
- /* Move the entire contents of the file `extraPages' pages
+ /* Move the entire contents of the file 'extraPages' pages
further. */
- unsigned int oldSize = fileSize;
- unsigned int shift = extraPages * pageSize;
- growFile(fileSize + extraPages * pageSize);
- memmove(contents + extraPages * pageSize, contents, oldSize);
+ unsigned int oldSize = fileContents->size();
+ unsigned int shift = extraPages * getPageSize();
+ growFile(fileContents, fileContents->size() + extraPages * getPageSize());
+ memmove(contents + extraPages * getPageSize(), contents, oldSize);
memset(contents + sizeof(Elf_Ehdr), 0, shift - sizeof(Elf_Ehdr));
/* Adjust the ELF header. */
if (rdi(phdrs[i].p_align) != 0 &&
(rdi(phdrs[i].p_vaddr) - rdi(phdrs[i].p_offset)) % rdi(phdrs[i].p_align) != 0) {
debug("changing alignment of program header %d from %d to %d\n", i,
- rdi(phdrs[i].p_align), pageSize);
- wri(phdrs[i].p_align, pageSize);
+ rdi(phdrs[i].p_align), getPageSize());
+ wri(phdrs[i].p_align, getPageSize());
}
}
wri(phdr.p_vaddr, wri(phdr.p_paddr, startPage));
wri(phdr.p_filesz, wri(phdr.p_memsz, shift));
wri(phdr.p_flags, PF_R | PF_W);
- wri(phdr.p_align, pageSize);
+ wri(phdr.p_align, getPageSize());
}
template<ElfFileParams>
-string ElfFile<ElfFileParamNames>::getSectionName(const Elf_Shdr & shdr)
+std::string ElfFile<ElfFileParamNames>::getSectionName(const Elf_Shdr & shdr)
{
- return string(sectionNames.c_str() + rdi(shdr.sh_name));
+ return std::string(sectionNames.c_str() + rdi(shdr.sh_name));
}
Elf_Shdr & ElfFile<ElfFileParamNames>::findSection(const SectionName & sectionName)
{
Elf_Shdr * shdr = findSection2(sectionName);
- if (!shdr)
- error("cannot find section " + sectionName);
+ if (!shdr) {
+ std::string extraMsg = "";
+ if (sectionName == ".interp" || sectionName == ".dynamic" || sectionName == ".dynstr")
+ extraMsg = ". The input file is most likely statically linked";
+ error("cannot find section '" + sectionName + "'" + extraMsg);
+ }
return *shdr;
}
return 0;
}
+template<ElfFileParams>
+bool ElfFile<ElfFileParamNames>::haveReplacedSection(const SectionName & sectionName)
+{
+ ReplacedSections::iterator i = replacedSections.find(sectionName);
+
+ if (i != replacedSections.end())
+ return true;
+ return false;
+}
template<ElfFileParams>
-string & ElfFile<ElfFileParamNames>::replaceSection(const SectionName & sectionName,
+std::string & ElfFile<ElfFileParamNames>::replaceSection(const SectionName & sectionName,
unsigned int size)
{
ReplacedSections::iterator i = replacedSections.find(sectionName);
- string s;
+ std::string s;
if (i != replacedSections.end()) {
- s = string(i->second);
+ s = std::string(i->second);
} else {
Elf_Shdr & shdr = findSection(sectionName);
- s = string((char *) contents + rdi(shdr.sh_offset), rdi(shdr.sh_size));
+ s = std::string((char *) contents + rdi(shdr.sh_offset), rdi(shdr.sh_size));
}
s.resize(size);
/* Overwrite the old section contents with 'X's. Do this
*before* writing the new section contents (below) to prevent
clobbering previously written new section contents. */
- for (ReplacedSections::iterator i = replacedSections.begin();
- i != replacedSections.end(); ++i)
- {
- string sectionName = i->first;
+ for (auto & i : replacedSections) {
+ std::string sectionName = i.first;
Elf_Shdr & shdr = findSection(sectionName);
memset(contents + rdi(shdr.sh_offset), 'X', rdi(shdr.sh_size));
}
- for (ReplacedSections::iterator i = replacedSections.begin();
- i != replacedSections.end(); ++i)
- {
- string sectionName = i->first;
+ for (auto & i : replacedSections) {
+ std::string sectionName = i.first;
Elf_Shdr & shdr = findSection(sectionName);
- debug("rewriting section `%s' from offset 0x%x (size %d) to offset 0x%x (size %d)\n",
- sectionName.c_str(), rdi(shdr.sh_offset), rdi(shdr.sh_size), curOff, i->second.size());
+ debug("rewriting section '%s' from offset 0x%x (size %d) to offset 0x%x (size %d)\n",
+ sectionName.c_str(), rdi(shdr.sh_offset), rdi(shdr.sh_size), curOff, i.second.size());
- memcpy(contents + curOff, (unsigned char *) i->second.c_str(),
- i->second.size());
+ memcpy(contents + curOff, (unsigned char *) i.second.c_str(),
+ i.second.size());
/* Update the section header for this section. */
wri(shdr.sh_offset, curOff);
wri(shdr.sh_addr, startAddr + (curOff - startOffset));
- wri(shdr.sh_size, i->second.size());
+ wri(shdr.sh_size, i.second.size());
wri(shdr.sh_addralign, sectionAlignment);
/* If this is the .interp section, then the PT_INTERP segment
}
}
- curOff += roundUp(i->second.size(), sectionAlignment);
+ curOff += roundUp(i.second.size(), sectionAlignment);
}
replacedSections.clear();
page of other segments. */
Elf_Addr startPage = 0;
for (unsigned int i = 0; i < phdrs.size(); ++i) {
- Elf_Addr thisPage = roundUp(rdi(phdrs[i].p_vaddr) + rdi(phdrs[i].p_memsz), pageSize);
+ Elf_Addr thisPage = roundUp(rdi(phdrs[i].p_vaddr) + rdi(phdrs[i].p_memsz), getPageSize());
if (thisPage > startPage) startPage = thisPage;
}
debug("last page is 0x%llx\n", (unsigned long long) startPage);
+ /* Because we're adding a new section header, we're necessarily increasing
+ the size of the program header table. This can cause the first section
+ to overlap the program header table in memory; we need to shift the first
+ few segments to someplace else. */
+ /* Some sections may already be replaced so account for that */
+ unsigned int i = 1;
+ Elf_Addr pht_size = sizeof(Elf_Ehdr) + (phdrs.size() + 1)*sizeof(Elf_Phdr);
+ while( shdrs[i].sh_addr <= pht_size && i < rdi(hdr->e_shnum) ) {
+ if (not haveReplacedSection(getSectionName(shdrs[i])))
+ replaceSection(getSectionName(shdrs[i]), shdrs[i].sh_size);
+ i++;
+ }
- /* Compute the total space needed for the replaced sections and
- the program headers. */
- off_t neededSpace = (phdrs.size() + 1) * sizeof(Elf_Phdr);
- for (ReplacedSections::iterator i = replacedSections.begin();
- i != replacedSections.end(); ++i)
- neededSpace += roundUp(i->second.size(), sectionAlignment);
+ /* Compute the total space needed for the replaced sections */
+ off_t neededSpace = 0;
+ for (auto & i : replacedSections)
+ neededSpace += roundUp(i.second.size(), sectionAlignment);
debug("needed space is %d\n", neededSpace);
+ size_t startOffset = roundUp(fileContents->size(), getPageSize());
- size_t startOffset = roundUp(fileSize, pageSize);
-
- growFile(startOffset + neededSpace);
-
+ growFile(fileContents, startOffset + neededSpace);
/* Even though this file is of type ET_DYN, it could actually be
an executable. For instance, Gold produces executables marked
- ET_DYN. In that case we can still hit the kernel bug that
- necessitated rewriteSectionsExecutable(). However, such
- executables also tend to start at virtual address 0, so
+ ET_DYN as does LD when linking with pie. If we move PT_PHDR, it
+ has to stay in the first PT_LOAD segment or any subsequent ones
+ if they're continuous in memory due to linux kernel constraints
+ (see BUGS). Since the end of the file would be after bss, we can't
+ move PHDR there, we therefore choose to leave PT_PHDR where it is but
+ move enough following sections such that we can add the extra PT_LOAD
+ section to it. This PT_LOAD segment ensures the sections at the end of
+ the file are mapped into memory for ld.so to process.
+ We can't use the approach in rewriteSectionsExecutable()
+ since DYN executables tend to start at virtual address 0, so
rewriteSectionsExecutable() won't work because it doesn't have
- any virtual address space to grow downwards into. As a
- workaround, make sure that the virtual address of our new
- PT_LOAD segment relative to the first PT_LOAD segment is equal
- to its offset; otherwise we hit the kernel bug. This may
- require creating a hole in the executable. The bigger the size
- of the uninitialised data segment, the bigger the hole. */
+ any virtual address space to grow downwards into. */
if (isExecutable) {
if (startOffset >= startPage) {
debug("shifting new PT_LOAD segment by %d bytes to work around a Linux kernel bug\n", startOffset - startPage);
- } else {
- size_t hole = startPage - startOffset;
- /* Print a warning, because the hole could be very big. */
- fprintf(stderr, "warning: working around a Linux kernel bug by creating a hole of %zu bytes in ‘%s’\n", hole, fileName.c_str());
- assert(hole % pageSize == 0);
- /* !!! We could create an actual hole in the file here,
- but it's probably not worth the effort. */
- growFile(fileSize + hole);
- startOffset += hole;
}
startPage = startOffset;
}
-
- /* Add a segment that maps the replaced sections and program
- headers into memory. */
+ /* Add a segment that maps the replaced sections into memory. */
phdrs.resize(rdi(hdr->e_phnum) + 1);
wri(hdr->e_phnum, rdi(hdr->e_phnum) + 1);
Elf_Phdr & phdr = phdrs[rdi(hdr->e_phnum) - 1];
wri(phdr.p_vaddr, wri(phdr.p_paddr, startPage));
wri(phdr.p_filesz, wri(phdr.p_memsz, neededSpace));
wri(phdr.p_flags, PF_R | PF_W);
- wri(phdr.p_align, pageSize);
+ wri(phdr.p_align, getPageSize());
/* Write out the replaced sections. */
- Elf_Off curOff = startOffset + phdrs.size() * sizeof(Elf_Phdr);
+ Elf_Off curOff = startOffset;
writeReplacedSections(curOff, startPage, startOffset);
- assert((off_t) curOff == startOffset + neededSpace);
-
+ assert(curOff == startOffset + neededSpace);
- /* Move the program header to the start of the new area. */
- wri(hdr->e_phoff, startOffset);
-
- rewriteHeaders(startPage);
+ /* Write out the updated program and section headers */
+ rewriteHeaders(hdr->e_phoff);
}
/* What is the index of the last replaced section? */
unsigned int lastReplaced = 0;
for (unsigned int i = 1; i < rdi(hdr->e_shnum); ++i) {
- string sectionName = getSectionName(shdrs[i]);
+ std::string sectionName = getSectionName(shdrs[i]);
if (replacedSections.find(sectionName) != replacedSections.end()) {
- debug("using replaced section `%s'\n", sectionName.c_str());
+ debug("using replaced section '%s'\n", sectionName.c_str());
lastReplaced = i;
}
}
assert(lastReplaced + 1 < shdrs.size()); /* !!! I'm lazy. */
size_t startOffset = rdi(shdrs[lastReplaced + 1].sh_offset);
Elf_Addr startAddr = rdi(shdrs[lastReplaced + 1].sh_addr);
- string prevSection;
+ std::string prevSection;
for (unsigned int i = 1; i <= lastReplaced; ++i) {
Elf_Shdr & shdr(shdrs[i]);
- string sectionName = getSectionName(shdr);
- debug("looking at section `%s'\n", sectionName.c_str());
+ std::string sectionName = getSectionName(shdr);
+ debug("looking at section '%s'\n", sectionName.c_str());
/* !!! Why do we stop after a .dynstr section? I can't
remember! */
if ((rdi(shdr.sh_type) == SHT_PROGBITS && sectionName != ".interp")
break;
} else {
if (replacedSections.find(sectionName) == replacedSections.end()) {
- debug("replacing section `%s' which is in the way\n", sectionName.c_str());
+ debug("replacing section '%s' which is in the way\n", sectionName.c_str());
replaceSection(sectionName, rdi(shdr.sh_size));
}
}
debug("first reserved offset/addr is 0x%x/0x%llx\n",
startOffset, (unsigned long long) startAddr);
- assert(startAddr % pageSize == startOffset % pageSize);
+ assert(startAddr % getPageSize() == startOffset % getPageSize());
Elf_Addr firstPage = startAddr - startOffset;
debug("first page is 0x%llx\n", (unsigned long long) firstPage);
- /* Right now we assume that the section headers are somewhere near
- the end, which appears to be the case most of the time.
- Therefore they're not accidentally overwritten by the replaced
- sections. !!! Fix this. */
- assert((off_t) rdi(hdr->e_shoff) >= startOffset);
+ if (rdi(hdr->e_shoff) < startOffset) {
+ /* The section headers occur too early in the file and would be
+ overwritten by the replaced sections. Move them to the end of the file
+ before proceeding. */
+ off_t shoffNew = fileContents->size();
+ off_t shSize = rdi(hdr->e_shoff) + rdi(hdr->e_shnum) * rdi(hdr->e_shentsize);
+ growFile(fileContents, fileContents->size() + shSize);
+ wri(hdr->e_shoff, shoffNew);
+
+ /* Rewrite the section header table. For neatness, keep the
+ sections sorted. */
+ assert(rdi(hdr->e_shnum) == shdrs.size());
+ sortShdrs();
+ for (unsigned int i = 1; i < rdi(hdr->e_shnum); ++i)
+ * ((Elf_Shdr *) (contents + rdi(hdr->e_shoff)) + i) = shdrs[i];
+ }
/* Compute the total space needed for the replaced sections, the
ELF header, and the program headers. */
size_t neededSpace = sizeof(Elf_Ehdr) + phdrs.size() * sizeof(Elf_Phdr);
- for (ReplacedSections::iterator i = replacedSections.begin();
- i != replacedSections.end(); ++i)
- neededSpace += roundUp(i->second.size(), sectionAlignment);
+ for (auto & i : replacedSections)
+ neededSpace += roundUp(i.second.size(), sectionAlignment);
debug("needed space is %d\n", neededSpace);
neededSpace += sizeof(Elf_Phdr);
debug("needed space is %d\n", neededSpace);
- unsigned int neededPages = roundUp(neededSpace - startOffset, pageSize) / pageSize;
+ unsigned int neededPages = roundUp(neededSpace - startOffset, getPageSize()) / getPageSize();
debug("needed pages is %d\n", neededPages);
- if (neededPages * pageSize > firstPage)
+ if (neededPages * getPageSize() > firstPage)
error("virtual address space underrun!");
- firstPage -= neededPages * pageSize;
- startOffset += neededPages * pageSize;
+ firstPage -= neededPages * getPageSize();
+ startOffset += neededPages * getPageSize();
shiftFile(neededPages, firstPage);
}
/* Write out the replaced sections. */
writeReplacedSections(curOff, firstPage, 0);
- assert((off_t) curOff == neededSpace);
+ assert(curOff == neededSpace);
rewriteHeaders(firstPage + rdi(hdr->e_phoff));
{
if (replacedSections.empty()) return;
- for (ReplacedSections::iterator i = replacedSections.begin();
- i != replacedSections.end(); ++i)
- debug("replacing section `%s' with size %d\n",
- i->first.c_str(), i->second.size());
+ for (auto & i : replacedSections)
+ debug("replacing section '%s' with size %d\n",
+ i.first.c_str(), i.second.size());
if (rdi(hdr->e_type) == ET_DYN) {
debug("this is a dynamic library\n");
/* Rewrite the program header table. */
/* If there is a segment for the program header table, update it.
- (According to the ELF spec, it must be the first entry.) */
- if (rdi(phdrs[0].p_type) == PT_PHDR) {
- phdrs[0].p_offset = hdr->e_phoff;
- wri(phdrs[0].p_vaddr, wri(phdrs[0].p_paddr, phdrAddress));
- wri(phdrs[0].p_filesz, wri(phdrs[0].p_memsz, phdrs.size() * sizeof(Elf_Phdr)));
+ (According to the ELF spec, there can only be one.) */
+ for (unsigned int i = 0; i < phdrs.size(); ++i) {
+ if (rdi(phdrs[i].p_type) == PT_PHDR) {
+ phdrs[i].p_offset = hdr->e_phoff;
+ wri(phdrs[i].p_vaddr, wri(phdrs[i].p_paddr, phdrAddress));
+ wri(phdrs[i].p_filesz, wri(phdrs[i].p_memsz, phdrs.size() * sizeof(Elf_Phdr)));
+ break;
+ }
}
sortPhdrs();
/* no idea if this makes sense, but it was needed for some
program */
if (!shdr) shdr = findSection2(".rel.got");
- if (!shdr) error("cannot find .rel.dyn or .rel.got");
+ /* some programs have neither section, but this doesn't seem
+ to be a problem */
+ if (!shdr) continue;
+ dyn->d_un.d_ptr = shdr->sh_addr;
+ }
+ else if (d_tag == DT_RELA) {
+ Elf_Shdr * shdr = findSection2(".rela.dyn");
+ /* some programs lack this section, but it doesn't seem to
+ be a problem */
+ if (!shdr) continue;
dyn->d_un.d_ptr = shdr->sh_addr;
}
- else if (d_tag == DT_RELA)
- dyn->d_un.d_ptr = findSection(".rela.dyn").sh_addr; /* PPC Linux */
else if (d_tag == DT_VERNEED)
dyn->d_un.d_ptr = findSection(".gnu.version_r").sh_addr;
else if (d_tag == DT_VERSYM)
debug("rewriting symbol table section %d\n", i);
for (size_t entry = 0; (entry + 1) * sizeof(Elf_Sym) <= rdi(shdrs[i].sh_size); entry++) {
Elf_Sym * sym = (Elf_Sym *) (contents + rdi(shdrs[i].sh_offset) + entry * sizeof(Elf_Sym));
- if (sym->st_shndx != SHN_UNDEF && sym->st_shndx < SHN_LORESERVE) {
- string section = sectionsByOldIndex[rdi(sym->st_shndx)];
+ unsigned int shndx = rdi(sym->st_shndx);
+ if (shndx != SHN_UNDEF && shndx < SHN_LORESERVE) {
+ if (shndx >= sectionsByOldIndex.size()) {
+ fprintf(stderr, "warning: entry %d in symbol table refers to a non-existent section, skipping\n", shndx);
+ continue;
+ }
+ std::string section = sectionsByOldIndex.at(shndx);
assert(!section.empty());
unsigned int newIndex = findSection3(section); // inefficient
- //debug("rewriting symbol %d: index = %d (%s) -> %d\n", entry, rdi(sym->st_shndx), section.c_str(), newIndex);
+ //debug("rewriting symbol %d: index = %d (%s) -> %d\n", entry, shndx, section.c_str(), newIndex);
wri(sym->st_shndx, newIndex);
+ /* Rewrite st_value. FIXME: we should do this for all
+ types, but most don't actually change. */
+ if (ELF32_ST_TYPE(rdi(sym->st_info)) == STT_SECTION)
+ wri(sym->st_value, rdi(shdrs[newIndex].sh_addr));
}
}
}
-static void setSubstr(string & s, unsigned int pos, const string & t)
+static void setSubstr(std::string & s, unsigned int pos, const std::string & t)
{
assert(pos + t.size() <= s.size());
copy(t.begin(), t.end(), s.begin() + pos);
template<ElfFileParams>
-string ElfFile<ElfFileParamNames>::getInterpreter()
+std::string ElfFile<ElfFileParamNames>::getInterpreter()
{
Elf_Shdr & shdr = findSection(".interp");
- return string((char *) contents + rdi(shdr.sh_offset), rdi(shdr.sh_size));
+ return std::string((char *) contents + rdi(shdr.sh_offset), rdi(shdr.sh_size));
}
+template<ElfFileParams>
+void ElfFile<ElfFileParamNames>::modifySoname(sonameMode op, const std::string & newSoname)
+{
+ if (rdi(hdr->e_type) != ET_DYN) {
+ debug("this is not a dynamic library\n");
+ return;
+ }
+
+ Elf_Shdr & shdrDynamic = findSection(".dynamic");
+ Elf_Shdr & shdrDynStr = findSection(".dynstr");
+ char * strTab = (char *) contents + rdi(shdrDynStr.sh_offset);
+
+ /* Walk through the dynamic section, look for the DT_SONAME entry. */
+ Elf_Dyn * dyn = (Elf_Dyn *) (contents + rdi(shdrDynamic.sh_offset));
+ Elf_Dyn * dynSoname = 0;
+ char * soname = 0;
+ for ( ; rdi(dyn->d_tag) != DT_NULL; dyn++) {
+ if (rdi(dyn->d_tag) == DT_SONAME) {
+ dynSoname = dyn;
+ soname = strTab + rdi(dyn->d_un.d_val);
+ }
+ }
+
+ if (op == printSoname) {
+ if (soname) {
+ if (std::string(soname ? soname : "") == "")
+ debug("DT_SONAME is empty\n");
+ else
+ printf("%s\n", soname);
+ } else {
+ debug("no DT_SONAME found\n");
+ }
+ return;
+ }
+
+ if (std::string(soname ? soname : "") == newSoname) {
+ debug("current and proposed new SONAMEs are equal keeping DT_SONAME entry\n");
+ return;
+ }
+
+ /* Zero out the previous SONAME */
+ unsigned int sonameSize = 0;
+ if (soname) {
+ sonameSize = strlen(soname);
+ memset(soname, 'X', sonameSize);
+ }
+
+ debug("new SONAME is '%s'\n", newSoname.c_str());
+
+ /* Grow the .dynstr section to make room for the new SONAME. */
+ debug("SONAME is too long, resizing...\n");
+
+ std::string & newDynStr = replaceSection(".dynstr", rdi(shdrDynStr.sh_size) + newSoname.size() + 1);
+ setSubstr(newDynStr, rdi(shdrDynStr.sh_size), newSoname + '\0');
+
+ /* Update the DT_SONAME entry. */
+ if (dynSoname) {
+ dynSoname->d_un.d_val = shdrDynStr.sh_size;
+ } else {
+ /* There is no DT_SONAME entry in the .dynamic section, so we
+ have to grow the .dynamic section. */
+ std::string & newDynamic = replaceSection(".dynamic", rdi(shdrDynamic.sh_size) + sizeof(Elf_Dyn));
+
+ unsigned int idx = 0;
+ for (; rdi(((Elf_Dyn *) newDynamic.c_str())[idx].d_tag) != DT_NULL; idx++);
+ debug("DT_NULL index is %d\n", idx);
+
+ /* Shift all entries down by one. */
+ setSubstr(newDynamic, sizeof(Elf_Dyn), std::string(newDynamic, 0, sizeof(Elf_Dyn) * (idx + 1)));
+
+ /* Add the DT_SONAME entry at the top. */
+ Elf_Dyn newDyn;
+ wri(newDyn.d_tag, DT_SONAME);
+ newDyn.d_un.d_val = shdrDynStr.sh_size;
+ setSubstr(newDynamic, 0, std::string((char *)&newDyn, sizeof(Elf_Dyn)));
+ }
+
+ changed = true;
+}
template<ElfFileParams>
-void ElfFile<ElfFileParamNames>::setInterpreter(const string & newInterpreter)
+void ElfFile<ElfFileParamNames>::setInterpreter(const std::string & newInterpreter)
{
- string & section = replaceSection(".interp", newInterpreter.size() + 1);
+ std::string & section = replaceSection(".interp", newInterpreter.size() + 1);
setSubstr(section, 0, newInterpreter + '\0');
changed = true;
}
-static void concatToRPath(string & rpath, const string & path)
+static void concatToRPath(std::string & rpath, const std::string & path)
{
if (!rpath.empty()) rpath += ":";
rpath += path;
template<ElfFileParams>
-void ElfFile<ElfFileParamNames>::modifyRPath(RPathOp op, string newRPath)
+void ElfFile<ElfFileParamNames>::modifyRPath(RPathOp op,
+ const std::vector<std::string> & allowedRpathPrefixes, std::string newRPath)
{
Elf_Shdr & shdrDynamic = findSection(".dynamic");
Elf_Shdr & shdrDynStr = findSection(".dynstr");
char * strTab = (char *) contents + rdi(shdrDynStr.sh_offset);
- /* Find the DT_STRTAB entry in the dynamic section. */
- Elf_Dyn * dyn = (Elf_Dyn *) (contents + rdi(shdrDynamic.sh_offset));
- Elf_Addr strTabAddr = 0;
- for ( ; rdi(dyn->d_tag) != DT_NULL; dyn++)
- if (rdi(dyn->d_tag) == DT_STRTAB) strTabAddr = rdi(dyn->d_un.d_ptr);
- if (!strTabAddr) error("strange: no string table");
-
- assert(strTabAddr == rdi(shdrDynStr.sh_addr));
-
/* Walk through the dynamic section, look for the RPATH/RUNPATH
entry.
overriden by LD_LIBRARY_PATH, and it's scoped (the DT_RUNPATH
for an executable or library doesn't affect the search path for
libraries used by it). DT_RPATH is ignored if DT_RUNPATH is
- present. The binutils `ld' still generates only DT_RPATH,
- unless you use its `--enable-new-dtag' option, in which case it
+ present. The binutils 'ld' still generates only DT_RPATH,
+ unless you use its '--enable-new-dtag' option, in which case it
generates a DT_RPATH and DT_RUNPATH pointing at the same
string. */
- static vector<string> neededLibs;
- dyn = (Elf_Dyn *) (contents + rdi(shdrDynamic.sh_offset));
+ std::vector<std::string> neededLibs;
+ Elf_Dyn * dyn = (Elf_Dyn *) (contents + rdi(shdrDynamic.sh_offset));
Elf_Dyn * dynRPath = 0, * dynRunPath = 0;
char * rpath = 0;
for ( ; rdi(dyn->d_tag) != DT_NULL; dyn++) {
rpath = strTab + rdi(dyn->d_un.d_val);
}
else if (rdi(dyn->d_tag) == DT_NEEDED)
- neededLibs.push_back(string(strTab + rdi(dyn->d_un.d_val)));
+ neededLibs.push_back(std::string(strTab + rdi(dyn->d_un.d_val)));
}
if (op == rpPrint) {
/* For each directory in the RPATH, check if it contains any
needed library. */
if (op == rpShrink) {
- static vector<bool> neededLibFound(neededLibs.size(), false);
+ std::vector<bool> neededLibFound(neededLibs.size(), false);
newRPath = "";
- char * pos = rpath;
- while (*pos) {
- char * end = strchr(pos, ':');
- if (!end) end = strchr(pos, 0);
-
- /* Get the name of the directory. */
- string dirName(pos, end - pos);
- if (*end == ':') ++end;
- pos = end;
+ for (auto & dirName : splitColonDelimitedString(rpath)) {
/* Non-absolute entries are allowed (e.g., the special
"$ORIGIN" hack). */
continue;
}
+ /* If --allowed-rpath-prefixes was given, reject directories
+ not starting with any of the (colon-delimited) prefixes. */
+ if (!allowedRpathPrefixes.empty() && !hasAllowedPrefix(dirName, allowedRpathPrefixes)) {
+ debug("removing directory '%s' from RPATH because of non-allowed prefix\n", dirName.c_str());
+ continue;
+ }
+
/* For each library that we haven't found yet, see if it
exists in this directory. */
bool libFound = false;
for (unsigned int j = 0; j < neededLibs.size(); ++j)
if (!neededLibFound[j]) {
- string libName = dirName + "/" + neededLibs[j];
- struct stat st;
- if (stat(libName.c_str(), &st) == 0) {
- neededLibFound[j] = true;
- libFound = true;
+ std::string libName = dirName + "/" + neededLibs[j];
+ try {
+ if (getElfType(readFile(libName, sizeof(Elf32_Ehdr))).machine == rdi(hdr->e_machine)) {
+ neededLibFound[j] = true;
+ libFound = true;
+ } else
+ debug("ignoring library '%s' because its machine type differs\n", libName.c_str());
+ } catch (SysError & e) {
+ if (e.errNo != ENOENT) throw;
}
}
if (!libFound)
- debug("removing directory `%s' from RPATH\n", dirName.c_str());
+ debug("removing directory '%s' from RPATH\n", dirName.c_str());
else
concatToRPath(newRPath, dirName);
}
}
+ if (op == rpRemove) {
+ if (!rpath) {
+ debug("no RPATH to delete\n");
+ return;
+ }
- if (string(rpath ? rpath : "") == newRPath) return;
+ Elf_Dyn * dyn = (Elf_Dyn *) (contents + rdi(shdrDynamic.sh_offset));
+ Elf_Dyn * last = dyn;
+ for ( ; rdi(dyn->d_tag) != DT_NULL; dyn++) {
+ if (rdi(dyn->d_tag) == DT_RPATH) {
+ debug("removing DT_RPATH entry\n");
+ changed = true;
+ } else if (rdi(dyn->d_tag) == DT_RUNPATH) {
+ debug("removing DT_RUNPATH entry\n");
+ changed = true;
+ } else {
+ *last++ = *dyn;
+ }
+ }
+ memset(last, 0, sizeof(Elf_Dyn) * (dyn - last));
+ return;
+ }
+
+
+ if (std::string(rpath ? rpath : "") == newRPath) return;
changed = true;
memset(rpath, 'X', rpathSize);
}
- debug("new rpath is `%s'\n", newRPath.c_str());
+ debug("new rpath is '%s'\n", newRPath.c_str());
if (!forceRPath && dynRPath && !dynRunPath) { /* convert DT_RPATH to DT_RUNPATH */
dynRPath->d_tag = DT_RUNPATH;
/* Grow the .dynstr section to make room for the new RPATH. */
debug("rpath is too long, resizing...\n");
- string & newDynStr = replaceSection(".dynstr",
+ std::string & newDynStr = replaceSection(".dynstr",
rdi(shdrDynStr.sh_size) + newRPath.size() + 1);
setSubstr(newDynStr, rdi(shdrDynStr.sh_size), newRPath + '\0');
else {
/* There is no DT_RUNPATH entry in the .dynamic section, so we
have to grow the .dynamic section. */
- string & newDynamic = replaceSection(".dynamic",
+ std::string & newDynamic = replaceSection(".dynamic",
rdi(shdrDynamic.sh_size) + sizeof(Elf_Dyn));
unsigned int idx = 0;
/* Shift all entries down by one. */
setSubstr(newDynamic, sizeof(Elf_Dyn),
- string(newDynamic, 0, sizeof(Elf_Dyn) * (idx + 1)));
+ std::string(newDynamic, 0, sizeof(Elf_Dyn) * (idx + 1)));
/* Add the DT_RUNPATH entry at the top. */
Elf_Dyn newDyn;
wri(newDyn.d_tag, forceRPath ? DT_RPATH : DT_RUNPATH);
newDyn.d_un.d_val = shdrDynStr.sh_size;
- setSubstr(newDynamic, 0, string((char *) &newDyn, sizeof(Elf_Dyn)));
+ setSubstr(newDynamic, 0, std::string((char *) &newDyn, sizeof(Elf_Dyn)));
}
}
template<ElfFileParams>
-void ElfFile<ElfFileParamNames>::removeNeeded(set<string> libs)
+void ElfFile<ElfFileParamNames>::removeNeeded(const std::set<std::string> & libs)
{
if (libs.empty()) return;
if (rdi(dyn->d_tag) == DT_NEEDED) {
char * name = strTab + rdi(dyn->d_un.d_val);
if (libs.find(name) != libs.end()) {
- debug("removing DT_NEEDED entry `%s'\n", name);
+ debug("removing DT_NEEDED entry '%s'\n", name);
changed = true;
} else {
- debug("keeping DT_NEEDED entry `%s'\n", name);
+ debug("keeping DT_NEEDED entry '%s'\n", name);
*last++ = *dyn;
}
} else
memset(last, 0, sizeof(Elf_Dyn) * (dyn - last));
}
+template<ElfFileParams>
+void ElfFile<ElfFileParamNames>::replaceNeeded(const std::map<std::string, std::string> & libs)
+{
+ if (libs.empty()) return;
-static bool printInterpreter = false;
-static string newInterpreter;
+ Elf_Shdr & shdrDynamic = findSection(".dynamic");
+ Elf_Shdr & shdrDynStr = findSection(".dynstr");
+ char * strTab = (char *) contents + rdi(shdrDynStr.sh_offset);
+
+ Elf_Dyn * dyn = (Elf_Dyn *) (contents + rdi(shdrDynamic.sh_offset));
+
+ unsigned int verNeedNum = 0;
+
+ unsigned int dynStrAddedBytes = 0;
+
+ for ( ; rdi(dyn->d_tag) != DT_NULL; dyn++) {
+ if (rdi(dyn->d_tag) == DT_NEEDED) {
+ char * name = strTab + rdi(dyn->d_un.d_val);
+ auto i = libs.find(name);
+ if (i != libs.end()) {
+ auto replacement = i->second;
+
+ debug("replacing DT_NEEDED entry '%s' with '%s'\n", name, replacement.c_str());
+
+ // technically, the string referred by d_val could be used otherwise, too (although unlikely)
+ // we'll therefore add a new string
+ debug("resizing .dynstr ...\n");
+
+ std::string & newDynStr = replaceSection(".dynstr",
+ rdi(shdrDynStr.sh_size) + replacement.size() + 1 + dynStrAddedBytes);
+ setSubstr(newDynStr, rdi(shdrDynStr.sh_size) + dynStrAddedBytes, replacement + '\0');
+
+ wri(dyn->d_un.d_val, rdi(shdrDynStr.sh_size) + dynStrAddedBytes);
+
+ dynStrAddedBytes += replacement.size() + 1;
+
+ changed = true;
+ } else {
+ debug("keeping DT_NEEDED entry '%s'\n", name);
+ }
+ }
+ if (rdi(dyn->d_tag) == DT_VERNEEDNUM) {
+ verNeedNum = rdi(dyn->d_un.d_val);
+ }
+ }
+ // If a replaced library uses symbol versions, then there will also be
+ // references to it in the "version needed" table, and these also need to
+ // be replaced.
+
+ if (verNeedNum) {
+ Elf_Shdr & shdrVersionR = findSection(".gnu.version_r");
+ // The filename strings in the .gnu.version_r are different from the
+ // ones in .dynamic: instead of being in .dynstr, they're in some
+ // arbitrary section and we have to look in ->sh_link to figure out
+ // which one.
+ Elf_Shdr & shdrVersionRStrings = shdrs[rdi(shdrVersionR.sh_link)];
+ // this is where we find the actual filename strings
+ char * verStrTab = (char *) contents + rdi(shdrVersionRStrings.sh_offset);
+ // and we also need the name of the section containing the strings, so
+ // that we can pass it to replaceSection
+ std::string versionRStringsSName = getSectionName(shdrVersionRStrings);
+
+ debug("found .gnu.version_r with %i entries, strings in %s\n", verNeedNum, versionRStringsSName.c_str());
+
+ unsigned int verStrAddedBytes = 0;
+
+ Elf_Verneed * need = (Elf_Verneed *) (contents + rdi(shdrVersionR.sh_offset));
+ while (verNeedNum > 0) {
+ char * file = verStrTab + rdi(need->vn_file);
+ auto i = libs.find(file);
+ if (i != libs.end()) {
+ auto replacement = i->second;
+
+ debug("replacing .gnu.version_r entry '%s' with '%s'\n", file, replacement.c_str());
+ debug("resizing string section %s ...\n", versionRStringsSName.c_str());
+
+ std::string & newVerDynStr = replaceSection(versionRStringsSName,
+ rdi(shdrVersionRStrings.sh_size) + replacement.size() + 1 + verStrAddedBytes);
+ setSubstr(newVerDynStr, rdi(shdrVersionRStrings.sh_size) + verStrAddedBytes, replacement + '\0');
+
+ wri(need->vn_file, rdi(shdrVersionRStrings.sh_size) + verStrAddedBytes);
+
+ verStrAddedBytes += replacement.size() + 1;
+
+ changed = true;
+ } else {
+ debug("keeping .gnu.version_r entry '%s'\n", file);
+ }
+ // the Elf_Verneed structures form a linked list, so jump to next entry
+ need = (Elf_Verneed *) (((char *) need) + rdi(need->vn_next));
+ --verNeedNum;
+ }
+ }
+}
+
+template<ElfFileParams>
+void ElfFile<ElfFileParamNames>::addNeeded(const std::set<std::string> & libs)
+{
+ if (libs.empty()) return;
+
+ Elf_Shdr & shdrDynamic = findSection(".dynamic");
+ Elf_Shdr & shdrDynStr = findSection(".dynstr");
+
+ /* add all new libs to the dynstr string table */
+ unsigned int length = 0;
+ for (auto & i : libs) length += i.size() + 1;
+
+ std::string & newDynStr = replaceSection(".dynstr",
+ rdi(shdrDynStr.sh_size) + length + 1);
+ std::set<Elf64_Xword> libStrings;
+ unsigned int pos = 0;
+ for (auto & i : libs) {
+ setSubstr(newDynStr, rdi(shdrDynStr.sh_size) + pos, i + '\0');
+ libStrings.insert(rdi(shdrDynStr.sh_size) + pos);
+ pos += i.size() + 1;
+ }
+
+ /* add all new needed entries to the dynamic section */
+ std::string & newDynamic = replaceSection(".dynamic",
+ rdi(shdrDynamic.sh_size) + sizeof(Elf_Dyn) * libs.size());
+
+ unsigned int idx = 0;
+ for ( ; rdi(((Elf_Dyn *) newDynamic.c_str())[idx].d_tag) != DT_NULL; idx++) ;
+ debug("DT_NULL index is %d\n", idx);
+
+ /* Shift all entries down by the number of new entries. */
+ setSubstr(newDynamic, sizeof(Elf_Dyn) * libs.size(),
+ std::string(newDynamic, 0, sizeof(Elf_Dyn) * (idx + 1)));
+
+ /* Add the DT_NEEDED entries at the top. */
+ unsigned int i = 0;
+ for (auto & j : libStrings) {
+ Elf_Dyn newDyn;
+ wri(newDyn.d_tag, DT_NEEDED);
+ wri(newDyn.d_un.d_val, j);
+ setSubstr(newDynamic, i * sizeof(Elf_Dyn), std::string((char *) &newDyn, sizeof(Elf_Dyn)));
+ i++;
+ }
+
+ changed = true;
+}
+
+template<ElfFileParams>
+void ElfFile<ElfFileParamNames>::printNeededLibs()
+{
+ Elf_Shdr & shdrDynamic = findSection(".dynamic");
+ Elf_Shdr & shdrDynStr = findSection(".dynstr");
+ char *strTab = (char *)contents + rdi(shdrDynStr.sh_offset);
+
+ Elf_Dyn *dyn = (Elf_Dyn *) (contents + rdi(shdrDynamic.sh_offset));
+
+ for (; rdi(dyn->d_tag) != DT_NULL; dyn++) {
+ if (rdi(dyn->d_tag) == DT_NEEDED) {
+ char *name = strTab + rdi(dyn->d_un.d_val);
+ printf("%s\n", name);
+ }
+ }
+}
+
+
+template<ElfFileParams>
+void ElfFile<ElfFileParamNames>::noDefaultLib()
+{
+ Elf_Shdr & shdrDynamic = findSection(".dynamic");
+
+ Elf_Dyn * dyn = (Elf_Dyn *) (contents + rdi(shdrDynamic.sh_offset));
+ Elf_Dyn * dynFlags1 = 0;
+ for ( ; rdi(dyn->d_tag) != DT_NULL; dyn++) {
+ if (rdi(dyn->d_tag) == DT_FLAGS_1) {
+ dynFlags1 = dyn;
+ break;
+ }
+ }
+ if (dynFlags1) {
+ if (dynFlags1->d_un.d_val & DF_1_NODEFLIB)
+ return;
+ dynFlags1->d_un.d_val |= DF_1_NODEFLIB;
+ } else {
+ std::string & newDynamic = replaceSection(".dynamic",
+ rdi(shdrDynamic.sh_size) + sizeof(Elf_Dyn));
+
+ unsigned int idx = 0;
+ for ( ; rdi(((Elf_Dyn *) newDynamic.c_str())[idx].d_tag) != DT_NULL; idx++) ;
+ debug("DT_NULL index is %d\n", idx);
+
+ /* Shift all entries down by one. */
+ setSubstr(newDynamic, sizeof(Elf_Dyn),
+ std::string(newDynamic, 0, sizeof(Elf_Dyn) * (idx + 1)));
+
+ /* Add the DT_FLAGS_1 entry at the top. */
+ Elf_Dyn newDyn;
+ wri(newDyn.d_tag, DT_FLAGS_1);
+ newDyn.d_un.d_val = DF_1_NODEFLIB;
+ setSubstr(newDynamic, 0, std::string((char *) &newDyn, sizeof(Elf_Dyn)));
+ }
+
+ changed = true;
+}
+
+
+static bool printInterpreter = false;
+static bool printSoname = false;
+static bool setSoname = false;
+static std::string newSoname;
+static std::string newInterpreter;
static bool shrinkRPath = false;
+static std::vector<std::string> allowedRpathPrefixes;
+static bool removeRPath = false;
static bool setRPath = false;
static bool printRPath = false;
-static string newRPath;
-static set<string> neededLibsToRemove;
-
+static std::string newRPath;
+static std::set<std::string> neededLibsToRemove;
+static std::map<std::string, std::string> neededLibsToReplace;
+static std::set<std::string> neededLibsToAdd;
+static bool printNeeded = false;
+static bool noDefaultLib = false;
template<class ElfFile>
-static void patchElf2(ElfFile & elfFile, mode_t fileMode)
+static void patchElf2(ElfFile && elfFile, std::string fileName)
{
- elfFile.parse();
-
if (printInterpreter)
printf("%s\n", elfFile.getInterpreter().c_str());
+ if (printSoname)
+ elfFile.modifySoname(elfFile.printSoname, "");
+
+ if (setSoname)
+ elfFile.modifySoname(elfFile.replaceSoname, newSoname);
+
if (newInterpreter != "")
elfFile.setInterpreter(newInterpreter);
if (printRPath)
- elfFile.modifyRPath(elfFile.rpPrint, "");
+ elfFile.modifyRPath(elfFile.rpPrint, {}, "");
if (shrinkRPath)
- elfFile.modifyRPath(elfFile.rpShrink, "");
+ elfFile.modifyRPath(elfFile.rpShrink, allowedRpathPrefixes, "");
+ else if (removeRPath)
+ elfFile.modifyRPath(elfFile.rpRemove, {}, "");
else if (setRPath)
- elfFile.modifyRPath(elfFile.rpSet, newRPath);
+ elfFile.modifyRPath(elfFile.rpSet, {}, newRPath);
+
+ if (printNeeded) elfFile.printNeededLibs();
elfFile.removeNeeded(neededLibsToRemove);
+ elfFile.replaceNeeded(neededLibsToReplace);
+ elfFile.addNeeded(neededLibsToAdd);
+
+ if (noDefaultLib)
+ elfFile.noDefaultLib();
if (elfFile.isChanged()){
elfFile.rewriteSections();
- writeFile(fileName, fileMode);
+ writeFile(fileName, elfFile.fileContents);
}
}
static void patchElf()
{
- if (!printInterpreter && !printRPath)
- debug("patching ELF file `%s'\n", fileName.c_str());
-
- mode_t fileMode;
+ for (auto fileName : fileNames) {
+ if (!printInterpreter && !printRPath && !printSoname && !printNeeded)
+ debug("patching ELF file '%s'\n", fileName.c_str());
- readFile(fileName, &fileMode);
+ debug("Kernel page size is %u bytes\n", getPageSize());
+ auto fileContents = readFile(fileName);
- /* Check the ELF header for basic validity. */
- if (fileSize < (off_t) sizeof(Elf32_Ehdr)) error("missing ELF header");
-
- if (memcmp(contents, ELFMAG, SELFMAG) != 0)
- error("not an ELF executable");
-
- if (contents[EI_CLASS] == ELFCLASS32 &&
- contents[EI_VERSION] == EV_CURRENT)
- {
- ElfFile<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr, Elf32_Addr, Elf32_Off, Elf32_Dyn, Elf32_Sym> elfFile;
- patchElf2(elfFile, fileMode);
- }
- else if (contents[EI_CLASS] == ELFCLASS64 &&
- contents[EI_VERSION] == EV_CURRENT)
- {
- ElfFile<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr, Elf64_Addr, Elf64_Off, Elf64_Dyn, Elf64_Sym> elfFile;
- patchElf2(elfFile, fileMode);
- }
- else {
- error("ELF executable is not 32/64-bit, little/big-endian, version 1");
+ if (getElfType(fileContents).is32Bit)
+ patchElf2(ElfFile<Elf32_Ehdr, Elf32_Phdr, Elf32_Shdr, Elf32_Addr, Elf32_Off, Elf32_Dyn, Elf32_Sym, Elf32_Verneed>(fileContents), fileName);
+ else
+ patchElf2(ElfFile<Elf64_Ehdr, Elf64_Phdr, Elf64_Shdr, Elf64_Addr, Elf64_Off, Elf64_Dyn, Elf64_Sym, Elf64_Verneed>(fileContents), fileName);
}
}
-void showHelp(const string & progName)
+void showHelp(const std::string & progName)
{
fprintf(stderr, "syntax: %s\n\
[--set-interpreter FILENAME]\n\
+ [--page-size SIZE]\n\
[--print-interpreter]\n\
+ [--print-soname]\t\tPrints 'DT_SONAME' entry of .dynamic section. Raises an error if DT_SONAME doesn't exist\n\
+ [--set-soname SONAME]\t\tSets 'DT_SONAME' entry to SONAME.\n\
[--set-rpath RPATH]\n\
+ [--remove-rpath]\n\
[--shrink-rpath]\n\
+ [--allowed-rpath-prefixes PREFIXES]\t\tWith '--shrink-rpath', reject rpath entries not starting with the allowed prefix\n\
[--print-rpath]\n\
[--force-rpath]\n\
+ [--add-needed LIBRARY]\n\
[--remove-needed LIBRARY]\n\
+ [--replace-needed LIBRARY NEW_LIBRARY]\n\
+ [--print-needed]\n\
+ [--no-default-lib]\n\
[--debug]\n\
[--version]\n\
FILENAME\n", progName.c_str());
}
-int main(int argc, char * * argv)
+int mainWrapped(int argc, char * * argv)
{
if (argc <= 1) {
showHelp(argv[0]);
int i;
for (i = 1; i < argc; ++i) {
- string arg(argv[i]);
+ std::string arg(argv[i]);
if (arg == "--set-interpreter" || arg == "--interpreter") {
if (++i == argc) error("missing argument");
newInterpreter = argv[i];
}
+ else if (arg == "--page-size") {
+ if (++i == argc) error("missing argument");
+ pageSize = atoi(argv[i]);
+ if (pageSize <= 0) error("invalid argument to --page-size");
+ }
else if (arg == "--print-interpreter") {
printInterpreter = true;
}
+ else if (arg == "--print-soname") {
+ printSoname = true;
+ }
+ else if (arg == "--set-soname") {
+ if (++i == argc) error("missing argument");
+ setSoname = true;
+ newSoname = argv[i];
+ }
+ else if (arg == "--remove-rpath") {
+ removeRPath = true;
+ }
else if (arg == "--shrink-rpath") {
shrinkRPath = true;
}
+ else if (arg == "--allowed-rpath-prefixes") {
+ if (++i == argc) error("missing argument");
+ allowedRpathPrefixes = splitColonDelimitedString(argv[i]);
+ }
else if (arg == "--set-rpath") {
if (++i == argc) error("missing argument");
setRPath = true;
added. */
forceRPath = true;
}
+ else if (arg == "--print-needed") {
+ printNeeded = true;
+ }
+ else if (arg == "--add-needed") {
+ if (++i == argc) error("missing argument");
+ neededLibsToAdd.insert(argv[i]);
+ }
else if (arg == "--remove-needed") {
if (++i == argc) error("missing argument");
neededLibsToRemove.insert(argv[i]);
}
+ else if (arg == "--replace-needed") {
+ if (i+2 >= argc) error("missing argument(s)");
+ neededLibsToReplace[ argv[i+1] ] = argv[i+2];
+ i += 2;
+ }
else if (arg == "--debug") {
debugMode = true;
}
- else if (arg == "--help") {
+ else if (arg == "--no-default-lib") {
+ noDefaultLib = true;
+ }
+ else if (arg == "--help" || arg == "-h" ) {
showHelp(argv[0]);
return 0;
}
else if (arg == "--version") {
- printf("1.0\n");
+ printf(PACKAGE_STRING "\n");
return 0;
}
- else break;
+ else {
+ fileNames.push_back(arg);
+ }
}
- if (i == argc) error("missing filename");
- fileName = argv[i];
+ if (fileNames.empty()) error("missing filename");
patchElf();
return 0;
}
+
+int main(int argc, char * * argv)
+{
+ try {
+ return mainWrapped(argc, argv);
+ } catch (std::exception & e) {
+ fprintf(stderr, "patchelf: %s\n", e.what());
+ return 1;
+ }
+}
projects / pyside2.git / commitdiff