2002-08-07 Roland McGrath <roland@redhat.com>
* sysdeps/i386/tls.h (TLS_DO_MODIFY_LDT): Add an extra argument with an "m" constraint to the asm so the compiler knows LDT_ENTRY was used.
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@ -94,12 +94,16 @@ typedef struct
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{ nr, (unsigned long int) (descr), sizeof (struct _pthread_descr_struct), \
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1, 0, 0, 0, 0, 1, 0 }; \
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int result; \
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asm ("pushl %%ebx\n\t" \
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asm volatile ( \
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"pushl %%ebx\n\t" \
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"movl $1, %%ebx\n\t" \
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"int $0x80\n\t" \
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"popl %%ebx" \
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: "=a" (result) \
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: "0" (__NR_modify_ldt), "d" (sizeof (ldt_entry)), "c" (&ldt_entry)); \
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: "0" (__NR_modify_ldt), \
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/* The extra argument with the "m" constraint is necessary \
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to let the compiler know that we are accessing LDT_ENTRY here. */\
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"m" (ldt_entry), "c" (&ldt_entry), "d" (sizeof (ldt_entry))); \
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__builtin_expect (result, 0) != 0 ? -1 : nr * 8 + 7; \
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})
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