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authorUlrich Drepper <drepper@redhat.com>1998-08-28 14:02:28 +0000
committerUlrich Drepper <drepper@redhat.com>1998-08-28 14:02:28 +0000
commit75311719d35dc0c132e46f883beaeb5b3d9eb75a (patch)
tree364ae797e245ca6942072912a682eaab6756fdd3 /linuxthreads/sysdeps/i386/useldt.h
parent997a416551a7d5ceb91978674cb8c70b443329d0 (diff)
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Update.
1998-08-28 13:58 Ulrich Drepper <drepper@cygnus.com> * internals.h: Also define THREAD_GETMEM_NC and THREAD_SETMEM_NC to access thread data with non-constant offsets. * specific.c: Use THREAD_GETMEM_NC and THREAD_SETMEM_NC where necessary. * sysdeps/i386/useldt.h: Fix typo. Add THREAD_GETMEM_NC and THREAD_SETMEM_NC definitions. * sysdeps/sparc/sparc32/pt-machine.h: Define THREAD_GETMEM_NC and THREAD_SETMEM_NC. * sysdeps/sparc/sparc64/pt-machine.h: Likewise.
Diffstat (limited to 'linuxthreads/sysdeps/i386/useldt.h')
-rw-r--r--linuxthreads/sysdeps/i386/useldt.h50
1 files changed, 48 insertions, 2 deletions
diff --git a/linuxthreads/sysdeps/i386/useldt.h b/linuxthreads/sysdeps/i386/useldt.h
index 53cf522951..1a789e2e0a 100644
--- a/linuxthreads/sysdeps/i386/useldt.h
+++ b/linuxthreads/sysdeps/i386/useldt.h
@@ -82,7 +82,7 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
({ \
__typeof__ (descr->member) __value; \
if (sizeof (__value) == 1) \
- __asm__ __volatile__ ("movb %%gs:%P1,%b0" \
+ __asm__ __volatile__ ("movb %%gs:%P2,%b0" \
: "=r" (__value) \
: "0" (0), \
"i" (offsetof (struct _pthread_descr_struct, \
@@ -101,7 +101,31 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
__value; \
})
-/* Set member of the thread descriptor directly. */
+/* Same as THREAD_GETMEM, but the member offset can be non-constant. */
+#define THREAD_GETMEM_NC(descr, member) \
+({ \
+ __typeof__ (descr->member) __value; \
+ if (sizeof (__value) == 1) \
+ __asm__ __volatile__ ("movb %%gs:(%2),%b0" \
+ : "=r" (__value) \
+ : "0" (0), \
+ "r" (offsetof (struct _pthread_descr_struct, \
+ member))); \
+ else \
+ { \
+ if (sizeof (__value) != 4) \
+ /* There should not be any value with a size other than 1 or 4. */ \
+ abort (); \
+ \
+ __asm__ __volatile__ ("movl %%gs:(%1),%0" \
+ : "=r" (__value) \
+ : "r" (offsetof (struct _pthread_descr_struct, \
+ member))); \
+ } \
+ __value; \
+})
+
+/* Same as THREAD_SETMEM, but the member offset can be non-constant. */
#define THREAD_SETMEM(descr, member, value) \
({ \
__typeof__ (descr->member) __value = (value); \
@@ -122,3 +146,25 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
member))); \
} \
})
+
+/* Set member of the thread descriptor directly. */
+#define THREAD_SETMEM_NC(descr, member, value) \
+({ \
+ __typeof__ (descr->member) __value = (value); \
+ if (sizeof (__value) == 1) \
+ __asm__ __volatile__ ("movb %0,%%gs:(%1)" : \
+ : "r" (__value), \
+ "r" (offsetof (struct _pthread_descr_struct, \
+ member))); \
+ else \
+ { \
+ if (sizeof (__value) != 4) \
+ /* There should not be any value with a size other than 1 or 4. */ \
+ abort (); \
+ \
+ __asm__ __volatile__ ("movl %0,%%gs:(%1)" : \
+ : "r" (__value), \
+ "r" (offsetof (struct _pthread_descr_struct, \
+ member))); \
+ } \
+})