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hurd: Only init early static TLS if it's used to store stack or pointer guards

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This is the case on both x86 architectures, but not on AArch64.

Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
Message-ID: <20240103171502.1358371-11-bugaevc@gmail.com>
This commit is contained in:
Sergey Bugaev 2024-01-03 20:14:43 +03:00 committed by Samuel Thibault
parent 9eaa0e1799
commit 4145de65f6
1 changed files with 11 additions and 4 deletions
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15
sysdeps/mach/hurd/init-first.c
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@ -38,7 +38,16 @@ extern int __libc_argc attribute_hidden;
extern char **__libc_argv attribute_hidden;
extern char **_dl_argv;
#ifndef SHARED
#if !defined (SHARED) && (defined (THREAD_SET_STACK_GUARD) || defined (THREAD_SET_POINTER_GUARD))
/* In the static case, we need to set up TLS early so that the stack
protection guard can be read at from TLS by the GCC-generated snippets,
on architectures that store the guard in TLS and not globally. */
# define USE_INIT1_TCBHEAD 1
#else
# define USE_INIT1_TCBHEAD 0
#endif
#if USE_INIT1_TCBHEAD
static tcbhead_t __init1_tcbhead;
#endif
@ -153,9 +162,7 @@ first_init (void)
/* Initialize data structures so we can do RPCs. */
__mach_init ();
#ifndef SHARED
/* In the static case, we need to set up TLS early so that the stack
protection guard can be read at from TLS by the GCC-generated snippets. */
#if USE_INIT1_TCBHEAD
_hurd_tls_init (&__init1_tcbhead, 0);
#endif