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3d3316b1de
We need NO_RTLD_HIDDEN because of the need for PLT calls in ld.so. See Roland's comment in https://sourceware.org/bugzilla/show_bug.cgi?id=15605 "in the Hurd it's crucial that calls like __mmap be the libc ones instead of the rtld-local ones after the bootstrap phase, when the dynamic linker is being used for dlopen and the like." We used to just avoid all hidden use in the rtld ; this commit switches to keeping only those that should use PLT calls, i.e. essentially those defined in sysdeps/mach/hurd/dl-sysdep.c: __assert_fail __assert_perror_fail __*stat64 _exit This fixes a few startup issues, notably the call to __tunable_get_val that is made before PLTs are set up.
77 lines
2.6 KiB
C
77 lines
2.6 KiB
C
#ifndef _SIGNAL_H
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# include <signal/signal.h>
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# ifndef _ISOMAC
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# include <sigsetops.h>
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libc_hidden_proto (sigemptyset)
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libc_hidden_proto (sigfillset)
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libc_hidden_proto (sigaddset)
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libc_hidden_proto (sigdelset)
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libc_hidden_proto (sigismember)
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extern int __sigpause (int sig_or_mask, int is_sig);
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libc_hidden_proto (__sigpause)
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libc_hidden_proto (raise)
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libc_hidden_proto (__libc_current_sigrtmin)
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libc_hidden_proto (__libc_current_sigrtmax)
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extern const char * const __sys_siglist[_NSIG];
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libc_hidden_proto (__sys_siglist)
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extern const char * const __sys_sigabbrev[_NSIG];
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libc_hidden_proto (__sys_sigabbrev)
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/* Now define the internal interfaces. */
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extern __sighandler_t __bsd_signal (int __sig, __sighandler_t __handler);
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extern int __kill (__pid_t __pid, int __sig);
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libc_hidden_proto (__kill)
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extern int __sigaction (int __sig, const struct sigaction *__restrict __act,
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struct sigaction *__restrict __oact);
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libc_hidden_proto (__sigaction)
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extern int __sigblock (int __mask);
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libc_hidden_proto (__sigblock)
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extern int __sigsetmask (int __mask);
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extern int __sigprocmask (int __how,
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const sigset_t *__set, sigset_t *__oset);
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libc_hidden_proto (__sigprocmask)
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extern int __sigsuspend (const sigset_t *__set);
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libc_hidden_proto (__sigsuspend)
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extern int __sigwait (const sigset_t *__set, int *__sig);
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libc_hidden_proto (__sigwait)
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extern int __sigwaitinfo (const sigset_t *__set, siginfo_t *__info);
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libc_hidden_proto (__sigwaitinfo)
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#if __TIMESIZE == 64
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# define __sigtimedwait64 __sigtimedwait
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#else
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# include <struct___timespec64.h>
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extern int __sigtimedwait64 (const sigset_t *__set, siginfo_t *__info,
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const struct __timespec64 *__timeout);
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libc_hidden_proto (__sigtimedwait64)
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#endif
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extern int __sigtimedwait (const sigset_t *__set, siginfo_t *__info,
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const struct timespec *__timeout);
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libc_hidden_proto (__sigtimedwait)
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extern int __sigqueue (__pid_t __pid, int __sig,
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const union sigval __val);
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#ifdef __USE_MISC
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extern int __sigreturn (struct sigcontext *__scp);
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#endif
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extern int __sigaltstack (const stack_t *__ss,
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stack_t *__oss);
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libc_hidden_proto (__sigaltstack)
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extern int __libc_sigaction (int sig, const struct sigaction *act,
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struct sigaction *oact);
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libc_hidden_proto (__libc_sigaction)
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extern int __default_sigpause (int mask);
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extern int __xpg_sigpause (int sig);
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/* Allocate real-time signal with highest/lowest available priority. */
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extern int __libc_allocate_rtsig (int __high);
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# if IS_IN (rtld)
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extern __typeof (__sigaction) __sigaction attribute_hidden;
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extern __typeof (__libc_sigaction) __libc_sigaction attribute_hidden;
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# endif
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# endif /* _ISOMAC */
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#endif /* signal.h */
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