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8426a99048
if gcc decided to move this across a conditional that checks validity of the thread register, an invalid thread-register-based read could be performed and raise sigsegv.
10 lines
196 B
C
10 lines
196 B
C
static inline struct pthread *__pthread_self()
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{
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struct pthread *self;
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__asm__ __volatile__ ("movq %%fs:0,%0" : "=r" (self) );
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return self;
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}
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#define CANCEL_REG_SP 15
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#define CANCEL_REG_IP 16
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