#include #include #include extern void ___sig_restore(); extern void ___masksig_restore(); int __sigaction(int sig,struct sigaction * new, struct sigaction * old) { if (new) { if (new->sa_flags & SA_NOMASK) new->sa_restorer=___sig_restore; else new->sa_restorer=___masksig_restore; } #if defined(__PIC__) || defined (__pic__) __asm__ volatile ("pushl %%ebx\n\t" "movl %%edi,%%ebx\n\t" "int $0x80\n\t" "popl %%ebx" :"=a" (sig) :"0" (SYS_sigaction),"D" (sig),"c" (new),"d" (old)); #else __asm__("int $0x80":"=a" (sig) :"0" (SYS_sigaction),"b" (sig),"c" (new),"d" (old)); #endif if (sig>=0) return 0; errno = -sig; return -1; } #include #ifdef weak_alias weak_alias (__sigaction, sigaction); #endif