Update.
* sysdeps/i386/useldt.h: Go back to using 16-bit instructions when loading/reading segment registers. Some old hardware doesn't handle the 32-bit instructions as expected. * sysdeps/i386/tls.h: Likewise.
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@ -1,5 +1,10 @@
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2002-08-20 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/i386/useldt.h: Go back to using 16-bit instructions when
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loading/reading segment registers. Some old hardware doesn't
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handle the 32-bit instructions as expected.
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* sysdeps/i386/tls.h: Likewise.
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* sysdeps/i386/tls.h (TLS_DO_SET_THREAD_AREA): Second parameter is
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renamed to secondcall and use is negated.
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(TLS_SETUP_GS_SEGMENT): Likewise.
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@ -123,8 +123,8 @@ typedef struct
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int result; \
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if (secondcall) \
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ldt_entry.entry_number = ({ int _gs; \
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asm ("movl %%gs, %0" : "=q" (_gs)); \
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_gs >> 3; }); \
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asm ("movw %%gs, %w0" : "=q" (_gs)); \
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(_gs & 0xffff) >> 3; }); \
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asm volatile (TLS_LOAD_EBX \
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"int $0x80\n\t" \
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TLS_LOAD_EBX \
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@ -164,7 +164,7 @@ typedef struct
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__gs = TLS_SETUP_GS_SEGMENT (_descr, secondcall); \
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if (__builtin_expect (__gs, 7) != -1) \
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{ \
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asm ("movl %0, %%gs" : : "q" (__gs)); \
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asm ("movw %w0, %%gs" : : "q" (__gs)); \
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__gs = 0; \
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} \
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__gs; \
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@ -72,7 +72,7 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
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1, 0, 0, 0, 0, 1, 0 }; \
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if (__modify_ldt (1, &ldt_entry, sizeof (ldt_entry)) != 0) \
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abort (); \
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asm ("movl %0, %%gs" : : "q" (nr * 8 + 7)); \
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asm ("movw %w0, %%gs" : : "q" (nr * 8 + 7)); \
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})
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/* When using the new set_thread_area call, we don't need to change %gs
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@ -83,13 +83,13 @@ extern int __modify_ldt (int, struct modify_ldt_ldt_s *, size_t);
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({ \
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int __gs; \
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struct modify_ldt_ldt_s ldt_entry = \
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{ ({ asm ("movl %%gs, %0" : "=q" (__gs)); __gs >> 3; }), \
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{ ({ asm ("movw %%gs, %w0" : "=q" (__gs)); (__gs & 0xffff) >> 3; }), \
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(unsigned long int) descr, sizeof (struct _pthread_descr_struct), \
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1, 0, 0, 0, 0, 1, 0 }; \
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if (__builtin_expect (INLINE_SYSCALL (set_thread_area, 1, &ldt_entry) == 0, \
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1)) \
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asm ("movl %0, %%gs" :: "q" (__gs)); \
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else \
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asm ("movw %w0, %%gs" :: "q" (__gs)); \
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else \
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__gs = -1; \
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__gs; \
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})
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@ -117,7 +117,7 @@ extern int __have_no_set_thread_area;
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#define FREE_THREAD(descr, nr) \
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{ \
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int __gs; \
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__asm__ __volatile__ ("movl %%gs, %0" : "=q" (__gs)); \
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__asm__ __volatile__ ("movw %%gs, %w0" : "=q" (__gs)); \
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if (__builtin_expect (__gs & 4, 0)) \
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{ \
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struct modify_ldt_ldt_s ldt_entry = \
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