From 016eb7e49eaf88c0f083341a06cb1a6bc178f664 Mon Sep 17 00:00:00 2001 From: GNU Libc Maintainers Date: Sun, 19 Sep 2021 19:46:59 +0100 Subject: [PATCH] git-drop-rmh Committed for 2.35 commit cbb2aa337bc3a5f1cb9936781c3a7f5036d4262e Author: Samuel Thibault Date: Mon Aug 16 11:20:38 2021 +0200 hurd: Drop fmh kludge Gnumach's 0650a4ee30e3 implements support for high bits being set in the mask parameter of vm_map. This allows to remove the fmh kludge that was masking away the address range by mapping a dumb area there. Gbp-Pq: Topic hurd-i386 Gbp-Pq: Name git-drop-rmh.diff --- sysdeps/mach/hurd/dl-sysdep.c | 35 ----------------------------------- 1 file changed, 35 deletions(-) diff --git a/sysdeps/mach/hurd/dl-sysdep.c b/sysdeps/mach/hurd/dl-sysdep.c index 2a9a6d12b..ce19e4e75 100644 --- a/sysdeps/mach/hurd/dl-sysdep.c +++ b/sysdeps/mach/hurd/dl-sysdep.c @@ -68,37 +68,6 @@ void *_dl_random attribute_relro = NULL; struct hurd_startup_data *_dl_hurd_data; -#define FMH defined(__i386__) -#if ! FMH -# define fmh() ((void)0) -# define unfmh() ((void)0) -#else -/* XXX loser kludge for vm_map kernel bug */ -#undef ELF_MACHINE_USER_ADDRESS_MASK -#define ELF_MACHINE_USER_ADDRESS_MASK 0 -static vm_address_t fmha; -static vm_size_t fmhs; -static void unfmh(void){ -__vm_deallocate(__mach_task_self(),fmha,fmhs);} -static void fmh(void) { - error_t err;int x;vm_offset_t o;mach_port_t p; - vm_address_t a=0x08000000U,max=VM_MAX_ADDRESS; - while (!(err=__vm_region(__mach_task_self(),&a,&fmhs,&x,&x,&x,&x,&p,&o))){ - __mach_port_deallocate(__mach_task_self(),p); - if (a+fmhs>=0x80000000U){ - max=a; break;} - fmha=a+=fmhs;} - if (err) assert(err==KERN_NO_SPACE); - if (!fmha)fmhs=0;else{ - fmhs=max-fmha; - err = __vm_map (__mach_task_self (), - &fmha, fmhs, 0, 0, MACH_PORT_NULL, 0, 1, - VM_PROT_NONE, VM_PROT_NONE, VM_INHERIT_COPY); - assert_perror(err);} - } -/* XXX loser kludge for vm_map kernel bug */ -#endif - ElfW(Addr) _dl_sysdep_start (void **start_argptr, @@ -133,8 +102,6 @@ _dl_sysdep_start (void **start_argptr, && _dl_hurd_data->user_entry == 0) _dl_hurd_data->user_entry = (vm_address_t) ENTRY_POINT; -unfmh(); /* XXX */ - #if 0 /* XXX make this work for real someday... */ if (_dl_hurd_data->user_entry == (vm_address_t) ENTRY_POINT) /* We were invoked as a command, not as the program interpreter. @@ -243,8 +210,6 @@ unfmh(); /* XXX */ /* Initialize frequently used global variable. */ GLRO(dl_pagesize) = __getpagesize (); -fmh(); /* XXX */ - /* See hurd/hurdstartup.c; this deals with getting information from the exec server and slicing up the arguments. Then it will call `go', above. */ -- 2.30.2