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3d1870fa33
On the Hurd, the rtld needs to see its own dumb versions of a few functions (defined in sysdeps/mach/hurd/dl-sysdep.c) overridden by libc's versions once loaded. rtld should thus not have hidden attribute for these. To achieve this, the Hurd port used to just define NO_HIDDEN, which disables it completely. For now, this changes that to disabling it for all rtld functions, for simplicity. See Roland's comment on https://sourceware.org/bugzilla/show_bug.cgi?id=15605#c5 The ld.so numbers remain at 8 .rel.plt 000000c8 00000c24 00000c24 00000c24 2**2 CONTENTS, ALLOC, LOAD, READONLY, DATA 9 .plt 000001a0 00000cf0 00000cf0 00000cf0 2**4 CONTENTS, ALLOC, LOAD, READONLY, CODE 10 .plt.got 00000010 00000e90 00000e90 00000e90 2**3 CONTENTS, ALLOC, LOAD, READONLY, CODE 18 .got.plt 00000070 0002d000 0002d000 0002c000 2**2 CONTENTS, ALLOC, LOAD, DATA which is about 3 times as much as on Linux. The libc.so numbers get divided by 3 (the remainings are mostly RPC stub calls) * include/libc-symbols.h [NO_RTLD_HIDDEN] (rtld_hidden_proto, rtld_hidden_tls_proto, rtld_hidden_def, rtld_hidden_weak, rtld_hidden_rtld_hidden_ver, data_def, rtld_hidden_data_weak, rtld_hidden_data_ver): Define to empty. * include/assert.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__assert_fail, __assert_perror_fail): Likewise. * include/dirent.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__rewinddir): Likewise. * include/libc-internal.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__profile_frequency): Likewise. * include/setjmp.h (__sigsetjmp): Likewise. * include/signal.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__sigaction, __libc_sigaction): Likewise. * include/stdlib.h [NO_RTLD_HIDDEN] (unsetenv, __strtoul_internal): Do not set hidden attribute. * include/string.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__stpcpy, __strdup, __strerror_t, __strsep_g, memchr, memcmp, memcpy, memmove, memset, rawmemchr, stpcpy, strchr, strcmp, strlen, strnlen, strsep): Likewise. * include/sys/stat.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__fxstat, __fxstat64, __lxstat, __lxstat64, __xstat, __xstat64, __fxstatat64): Likewise. * include/sys/utsname.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (__uname): Likewise. * include/sysdeps/generic/_itoa.h [IS_IN(rtld) && NO_RTLD_HIDDEN] (_itoa_upper_digits, _itoa_lower_digits): Likewise. * sysdeps/mach/hurd/configure.ac (NO_HIDDEN): Do not set. (NO_RTLD_HIDDEN): Set. * sysdeps/mach/hurd/configure: Refresh. * config.h.in: Refresh.
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
#ifndef _SIGNAL_H
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# include <signal/signal.h>
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# ifndef _ISOMAC
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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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libc_hidden_proto (_sys_siglist)
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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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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) && !defined NO_RTLD_HIDDEN
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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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