local-tls-ie-align

The elf/tst-tls-ie* tests try to load modules with 8-byte-aligned TLS data that
will get allocated in the static TLS area, so we need at least 8-byte alignment.
8-byte alignment requirement is not that uncommon on i386 anyway.

And upstream happens to have 32-byte alignment from
0c76fc3c2b34 ('Linux: Perform rseq registration at C startup and thread
creation') which just rounds up max_align to 32 anyway.

Gbp-Pq: Topic hurd-i386
Gbp-Pq: Name local-tls-ie-align.diff

diff --git a/sysdeps/mach/hurd/tls.h b/sysdeps/mach/hurd/tls.h
index a6a35867853e7de8c8cc65bf2b7e4597e71ea041..3b909444e1704e114038410325583bf568cbca96 100644 (file)
--- a/sysdeps/mach/hurd/tls.h
+++ b/sysdeps/mach/hurd/tls.h
@@ -25,6 +25,7 @@
 # include <stdint.h>
 # include <stdbool.h>
 # include <sysdep.h>
+# include <sys/param.h>
 # include <mach/mig_errors.h>
 # include <mach.h>
 # include <atomic.h>
@@ -34,7 +35,7 @@
 # define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
 
 /* Alignment requirements for the initial TCB.  */
-# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t)
+# define TLS_INIT_TCB_ALIGN MAX(__alignof__ (tcbhead_t), 8)
 
 /* This is the size of the TCB.  */
 # define TLS_TCB_SIZE TLS_INIT_TCB_SIZE        /* XXX */