aboutsummaryrefslogtreecommitdiff
path: root/nptl/sysdeps/x86_64
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2005-06-26 18:14:26 +0000
committerUlrich Drepper <drepper@redhat.com>2005-06-26 18:14:26 +0000
commit35f1e82763326f196fd068e92343643d8ed54ee3 (patch)
tree74c6d155ca2e7c32503231b8ce186a0752bc924b /nptl/sysdeps/x86_64
parent2f37117b013f77df863b198c3408555c49596174 (diff)
downloadglibc-35f1e82763326f196fd068e92343643d8ed54ee3.tar
glibc-35f1e82763326f196fd068e92343643d8ed54ee3.tar.gz
glibc-35f1e82763326f196fd068e92343643d8ed54ee3.tar.bz2
glibc-35f1e82763326f196fd068e92343643d8ed54ee3.zip
* Versions.def (ld): Add GLIBC_2.4.
* configure.in: Add --enable-stackguard-randomization option. (ENABLE_STACKGUARD_RANDOMIZE): New define. * config.h.in (ENABLE_STACKGUARD_RANDOMIZE): Add. * sysdeps/unix/sysv/linux/dl-osinfo.h: Include stdint.h. (_dl_setup_stack_chk_guard): New inline function. * sysdeps/generic/dl-osinfo.h: Include stdint.h. (_dl_setup_stack_chk_guard): New inline function. * elf/rtld.c (__stack_chk_guard): New variable. (dl_main): Remove all traces of TLS_INIT_TP_EXPENSIVE. Set __stack_chk_guard to _dl_setup_stack_chk_guard (), use THREAD_SET_STACK_GUARD if defined. * elf/Versions (ld): Export __stack_chk_guard@@GLIBC_2.4. * sysdeps/generic/libc-start.c (__stack_chk_guard): New variable. (__libc_start_main): Set __stack_chk_guard to _dl_setup_stack_chk_guard (), use THREAD_SET_STACK_GUARD if defined. * sysdeps/generic/libc-tls.c (__libc_setup_tls): Remove all traces of TLS_INIT_TP_EXPENSIVE. * debug/Versions (libc): Export __stack_chk_fail@@GLIBC_2.4. * debug/Makefile (routines): Add stack_chk_fail. (static-only-routines): Add stack_chk_fail_local. * debug/stack_chk_fail_local.c: New file. * debug/stack_chk_fail.c: New file. * elf/Makefile: Add rules to build and run tst-stackguard1{,-static} tests. * elf/tst-stackguard1.c: New file. * elf/tst-stackguard1-static.c: New file. * elf/stackguard-macros.h: New file.
Diffstat (limited to 'nptl/sysdeps/x86_64')
-rw-r--r--nptl/sysdeps/x86_64/tls.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/nptl/sysdeps/x86_64/tls.h b/nptl/sysdeps/x86_64/tls.h
index 3fc9b384aa..516827b8e1 100644
--- a/nptl/sysdeps/x86_64/tls.h
+++ b/nptl/sysdeps/x86_64/tls.h
@@ -47,6 +47,8 @@ typedef struct
dtv_t *dtv;
void *self; /* Pointer to the thread descriptor. */
int multiple_threads;
+ uintptr_t sysinfo;
+ uintptr_t stack_guard;
} tcbhead_t;
#else /* __ASSEMBLER__ */
@@ -320,6 +322,13 @@ typedef struct
__res; })
+/* Set the stack guard field in TCB head. */
+# define THREAD_SET_STACK_GUARD(value) \
+ THREAD_SETMEM (THREAD_SELF, header.stack_guard, value)
+# define THREAD_COPY_STACK_GUARD(descr) \
+ ((descr)->header.stack_guard \
+ = THREAD_GETMEM (THREAD_SELF, header.stack_guard))
+
#endif /* __ASSEMBLER__ */
#endif /* tls.h */