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| author | Ulrich Drepper <drepper@redhat.com> | 2003-04-12 20:32:01 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-04-12 20:32:01 +0000 |
| commit | 177d1ad3ac9aab9b8ae7e7f70c2c66b6bdb876ee (patch) | |
| tree | 14a7365c1e51d7195303a37d0b8fc17677a5b831 /nptl/sysdeps/x86_64/tls.h | |
| parent | 68107ec092e7cc3fcd1f56edf9da8085cffed00d (diff) | |
| download | glibc-177d1ad3ac9aab9b8ae7e7f70c2c66b6bdb876ee.tar.gz glibc-177d1ad3ac9aab9b8ae7e7f70c2c66b6bdb876ee.tar.xz glibc-177d1ad3ac9aab9b8ae7e7f70c2c66b6bdb876ee.zip | |
Update.
2003-04-12 Ulrich Drepper <drepper@redhat.com> * sysdeps/x86_64/tls.h (THREAD_SETMEM): Word around compiler bug which mishandles loading of global object addresses in PIC. (THREAD_SETMEM_NC): Likewise.
Diffstat (limited to 'nptl/sysdeps/x86_64/tls.h')
| -rw-r--r-- | nptl/sysdeps/x86_64/tls.h | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/nptl/sysdeps/x86_64/tls.h b/nptl/sysdeps/x86_64/tls.h index dec1b5d1b7..975d20f3fa 100644 --- a/nptl/sysdeps/x86_64/tls.h +++ b/nptl/sysdeps/x86_64/tls.h @@ -204,6 +204,15 @@ typedef struct __value; }) +/* Loading addresses of objects on x86-64 needs to be treated special + when generating PIC code. */ +#ifdef __pic__ +# define IMM_MODE "nr" +#else +# define IMM_MODE "ir" +#endif + + /* Same as THREAD_SETMEM, but the member offset can be non-constant. */ # define THREAD_SETMEM(descr, member, value) \ ({ if (sizeof (descr->member) == 1) \ @@ -212,7 +221,7 @@ typedef struct "i" (offsetof (struct pthread, member))); \ else if (sizeof (descr->member) == 4) \ asm volatile ("movl %0,%%fs:%P1" : \ - : "ir" (value), \ + : IMM_MODE (value), \ "i" (offsetof (struct pthread, member))); \ else \ { \ @@ -222,7 +231,7 @@ typedef struct abort (); \ \ asm volatile ("movq %q0,%%fs:%P1" : \ - : "ir" ((unsigned long int) value), \ + : IMM_MODE ((unsigned long int) value), \ "i" (offsetof (struct pthread, member))); \ }}) @@ -236,7 +245,7 @@ typedef struct "r" (idx)); \ else if (sizeof (descr->member[0]) == 4) \ asm volatile ("movl %0,%%fs:%P1(,%q2,4)" : \ - : "ir" (value), \ + : IMM_MODE (value), \ "i" (offsetof (struct pthread, member[0])), \ "r" (idx)); \ else \ @@ -247,7 +256,7 @@ typedef struct abort (); \ \ asm volatile ("movq %q0,%%fs:%P1(,%q2,8)" : \ - : "r" ((unsigned long int) value), \ + : IMM_MODE ((unsigned long int) value), \ "i" (offsetof (struct pthread, member[0])), \ "r" (idx)); \ }}) |