From 14e9dd679a43ef9eb90adc0764152045caab6146 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 24 Feb 1998 15:22:29 +0000 Subject: Update. 1998-02-24 15:12 Ulrich Drepper * Makeconfig: Filter out frame-pointer effecting options when compiling profiling or debugging code. * config.h.in (internal_function): Don't define here if PROF is defined. * gmon/gmon.c (__moncontrol): Don't change state if already in error state. (__monstartup): If calloc fails set error state and mark array as not allocated. (_mcleanup): Don't call write_gmon if in error state. Don't try to free array if not successfully allocated. * elf/dl-load.c (STRING): Define to __STRING to enble expansion. Include elf.h to get macro definitions. Use __ELF?NATIVE?CLASS in message, not __ELF_WORDSIZE. 1998-02-24 09:40 Ulrich Drepper * elf/ldd.sh.in: Add compatibility for broken old shells. * elf/ldd.bash.in: Likewise. 1998-02-24 08:11 H.J. Lu * sunrpc/rpc_main.c (open_input): Check pipe return error. * time/clocktest.c (main): Check signal return error. 1998-02-24 Andreas Jaeger * iconv/Makefile ($(inst_bindir)/iconv): Correct typo, add "/" and use do-install-program. Reported by Mark M. Kettenis. (subdir_install): Likewise. 1998-02-22 Thorsten Kukuk * sunrpc/rpc_sample.c: Fix typo. * nscd/connections.c: Use locale. * nscd/grpcache.c: Add debug messages, gidtbl should get the calloc result. * nscd/nscd.c: Check if init functions fails. * nscd/nscd_conf.c: Allow disabling of group cache. * nscd/nscd_getgr_r.c: Fix return code if group not found. * nscd/pwdcache.c: Fix debug messages. 1998-02-22 Andreas Schwab * libc.map: Add __monstartup and _mcleanup for profiling support. 1998-02-20 Andreas Schwab * libc.map: Export __getpagesize, for binary compatibility with 2.0. 1998-02-21 Andreas Schwab * posix/globtest.sh: Use --library-path instead of LD_LIBRARY_PATH. * localedata/sort-test.sh: Likewise. * localedata/tst-fmon.sh: Likewise. Avoid useless use of cat. 1998-02-22 Andreas Schwab * sysdeps/unix/sysv/linux/sigaction.c: Translate between struct sigaction and struct kernel_sigaction for __syscall_rt_sigaction. * sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise. * sysdeps/unix/sysv/linux/kernel_sigaction.h (struct kernel_sigaction): Define. * sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h (struct kernel_sigaction): Define. 1998-02-23 Andreas Jaeger * math/libm-test.c: Change epsilons for libm-ieee754. 1998-02-23 12:33 Ulrich Drepper * sysdeps/i386/__longjmp.S: Fix race condition. Reported by Bruno Haible . --- sysdeps/i386/__longjmp.S | 7 +++-- sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h | 8 +++++ sysdeps/unix/sysv/linux/i386/sigaction.c | 31 +++++++++++------- sysdeps/unix/sysv/linux/kernel_sigaction.h | 9 ++++++ sysdeps/unix/sysv/linux/sigaction.c | 40 +++++++++++++++++++----- 5 files changed, 72 insertions(+), 23 deletions(-) (limited to 'sysdeps') diff --git a/sysdeps/i386/__longjmp.S b/sysdeps/i386/__longjmp.S index 7e039deb8f..a8049e9de3 100644 --- a/sysdeps/i386/__longjmp.S +++ b/sysdeps/i386/__longjmp.S @@ -1,5 +1,5 @@ /* longjmp for i386. - Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -25,6 +25,8 @@ ENTRY (__longjmp) movl 4(%esp), %ecx /* User's jmp_buf in %ecx. */ movl 8(%esp), %eax /* Second argument is return value. */ + /* Save the return address now. */ + movl (JB_PC*4)(%ecx), %edx /* Restore registers. */ movl (JB_BX*4)(%ecx), %ebx movl (JB_SI*4)(%ecx), %esi @@ -32,6 +34,5 @@ ENTRY (__longjmp) movl (JB_BP*4)(%ecx), %ebp movl (JB_SP*4)(%ecx), %esp /* Jump to saved PC. */ - movl (JB_PC*4)(%ecx), %ecx - jmp *%ecx + jmp *%edx END (__longjmp) diff --git a/sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h b/sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h index f8c42e0a1e..4c35d969cf 100644 --- a/sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h +++ b/sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h @@ -5,3 +5,11 @@ struct old_kernel_sigaction { unsigned long sa_mask; unsigned int sa_flags; }; + +/* This is the sigaction structure from the Linux 2.1.68 kernel. */ + +struct kernel_sigaction { + __sighandler_t k_sa_handler; + unsigned int sa_flags; + sigset_t sa_mask; +}; diff --git a/sysdeps/unix/sysv/linux/i386/sigaction.c b/sysdeps/unix/sysv/linux/i386/sigaction.c index 6e26a5e6e2..a6d2b63634 100644 --- a/sysdeps/unix/sysv/linux/i386/sigaction.c +++ b/sysdeps/unix/sysv/linux/i386/sigaction.c @@ -28,8 +28,8 @@ #include -extern int __syscall_rt_sigaction (int, const struct sigaction *, - struct sigaction *, size_t); +extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *, + struct kernel_sigaction *, size_t); /* The variable is shared between all wrappers around signal handling functions which have RT equivalents. */ @@ -47,27 +47,34 @@ __sigaction (int sig, const struct sigaction *act, struct sigaction *oact) /* First try the RT signals. */ if (!__libc_missing_rt_sigs) { - struct sigaction nact, *nactp; + struct kernel_sigaction kact, koact; if (act) { - nact.sa_handler = act->sa_handler; - memcpy (&nact.sa_mask, &act->sa_mask, sizeof (sigset_t)); - nact.sa_flags = act->sa_flags; + kact.k_sa_handler = act->sa_handler; + memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t)); + kact.sa_flags = act->sa_flags; - nact.sa_restorer = ((act->sa_flags & SA_NOMASK) + kact.sa_restorer = ((act->sa_flags & SA_NOMASK) ? &&restore_nomask : &&restore); - nactp = &nact; } - else - nactp = NULL; /* XXX The size argument hopefully will have to be changed to the real size of the user-level sigset_t. */ - result = __syscall_rt_sigaction (sig, nactp, oact, _NSIG / 8); + result = __syscall_rt_sigaction (sig, act ? &kact : NULL, + oact ? &koact : NULL, _NSIG / 8); if (result >= 0 || errno != ENOSYS) - return result; + { + if (oact && result >= 0) + { + oact->sa_handler = koact.k_sa_handler; + memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (sigset_t)); + oact->sa_flags = koact.sa_flags; + oact->sa_restorer = koact.sa_restorer; + } + return result; + } __libc_missing_rt_sigs = 1; } diff --git a/sysdeps/unix/sysv/linux/kernel_sigaction.h b/sysdeps/unix/sysv/linux/kernel_sigaction.h index e3901cfe5c..1ce2be20a1 100644 --- a/sysdeps/unix/sysv/linux/kernel_sigaction.h +++ b/sysdeps/unix/sysv/linux/kernel_sigaction.h @@ -8,3 +8,12 @@ struct old_kernel_sigaction { unsigned long sa_flags; void (*sa_restorer) __P ((void)); }; + +/* This is the sigaction structure from the Linux 2.1.68 kernel. */ + +struct kernel_sigaction { + __sighandler_t k_sa_handler; + unsigned long sa_flags; + void (*sa_restorer) __P ((void)); + sigset_t sa_mask; +}; diff --git a/sysdeps/unix/sysv/linux/sigaction.c b/sysdeps/unix/sysv/linux/sigaction.c index 510cbe7040..5f9a7feac3 100644 --- a/sysdeps/unix/sysv/linux/sigaction.c +++ b/sysdeps/unix/sysv/linux/sigaction.c @@ -26,8 +26,8 @@ extern int __syscall_sigaction (int, const struct old_kernel_sigaction *, struct old_kernel_sigaction *); -extern int __syscall_rt_sigaction (int, const struct sigaction *, - struct sigaction *, size_t); +extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *, + struct kernel_sigaction *, size_t); /* The variable is shared between all wrappers around signal handling functions which have RT equivalents. */ @@ -43,17 +43,41 @@ __sigaction (sig, act, oact) struct sigaction *oact; { struct old_kernel_sigaction k_sigact, k_osigact; - int error; + int result; /* First try the RT signals. */ if (!__libc_missing_rt_sigs) { + struct kernel_sigaction kact, koact; + + if (act) + { + kact.k_sa_handler = act->sa_handler; + memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t)); + kact.sa_flags = act->sa_flags; +#ifdef HAVE_SA_RESTORER + kact.sa_restorer = act->sa_restorer; +#endif + } + /* XXX The size argument hopefully will have to be changed to the real size of the user-level sigset_t. */ - int result = __syscall_rt_sigaction (sig, act, oact, _NSIG / 8); + result = __syscall_rt_sigaction (sig, act ? &kact : 0, + oact ? &koact : 0, _NSIG / 8); if (result >= 0 || errno != ENOSYS) - return result; + { + if (oact && result >= 0) + { + oact->sa_handler = koact.k_sa_handler; + memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (sigset_t)); + oact->sa_flags = koact.sa_flags; +#ifdef HAVE_SA_RESTORER + oact->sa_restorer = koact.sa_restorer; +#endif + } + return result; + } __libc_missing_rt_sigs = 1; } @@ -67,9 +91,9 @@ __sigaction (sig, act, oact) k_sigact.sa_restorer = act->sa_restorer; #endif } - error = __syscall_sigaction (sig, act ? &k_sigact : 0, + result = __syscall_sigaction (sig, act ? &k_sigact : 0, oact ? &k_osigact : 0); - if (oact && error >= 0) + if (oact && result >= 0) { oact->sa_handler = k_osigact.k_sa_handler; oact->sa_mask.__val[0] = k_osigact.sa_mask; @@ -78,7 +102,7 @@ __sigaction (sig, act, oact) oact->sa_restorer = k_osigact.sa_restorer; #endif } - return error; + return result; } weak_alias (__sigaction, sigaction) -- cgit v1.2.3