From fd26970f3324277683be531ad2c31f42e19e4b48 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 21 Jan 1997 06:10:42 +0000 Subject: update from main archive 970120 Tue Jan 21 04:05:20 1997 Ulrich Drepper * version.h (VERSION): Bump to 1.101. Implement -d and -r option to `ldd' to check relocations. * elf/dl-error.c: Add another method to intercept errors. (_dl_receive_error): New function. Install user defined handler. (receiver): New variable. Contains pointer to user provided handler. (_dl_signal_error): If user provided handler is installed call this. * elf/dl-load.c (_dl_map_object): When shared object is not found in trace mode initialize a few more fields so that lookup can actually happen but always fails. * elf/ldd.sh.in: Rewrite argument handling. Recognize new arguments to trigger reloation test. Return with appropriate error code if a file wasn't found. Print warning if object is not executable. * elf/ldd.bash.in: Likewise. * elf/link.h (receiver_fct): New type. Used in _dl_receive_error. (_dl_sysdep_error): New prototype. (_dl_receive_error): New prototype. (_dl_signal_error): Remove __attribute__ ((__noreturn__)). * elf/rtld.c (dl_main): Rewrite argument handling. More than one argument allowed. Recognize --data-relocs and --function-relocs arguments. Don't determine `lazy' mode from LD_BIND_NOW environment variable when in trace mode. If in trace mode and either --data-relocs or --function-relocs is given perform relocation. Report errors using print_unresolved function. (print_unresolved): New function. Print information about missing symbol on stderr. * sysdeps/generic/dl-sysdep.c (_dl_sysdep_error): New function. Like _dl_sysdep_message but print to stderr. * sysdeps/mach/hurd/dl-sysdep.c: Likewise. * sysdeps/generic/sockaddrcom.h: Add definition of sa_family_t. Reported by Andreas Schwab. (__SOCKADDR_COMMON): Use sa_family_t for family member. * sysdeps/unix/bsd/bsd4.4/sockaddrcom.h: Likewise. Linux/Sparc support by Miguel de Icaza. * sysdeps/sparc/fpu_control.h: New file. * sysdeps/unix/sysv/linux/sparc/__sigtrampoline.S: New file. * sysdeps/unix/sysv/linux/sparc/brk.c: New file. * sysdeps/unix/sysv/linux/sparc/profil-counter.h: New file. * sysdeps/unix/sysv/linux/sparc/sigaction.c: New file. * sysdeps/unix/sysv/linux/sparc/socket.S: New file. * sysdeps/unix/sysv/linux/sparc/syscall.S: New file. * sysdeps/unix/sysv/linux/sparc/sysdep.h: New file. * sysdeps/unix/sysv/linux/sparc/Dist: New file. * sysdeps/unix/sysv/linux/sparc/Makefile: New file. * sysdeps/unix/sysv/linux/net/if_arp.h: Don't use kernel header. Provide own definition based on 4.4BSD and Linux. * sysdeps/unix/sysv/linux/net/ppp_defs.h: Define __u32 before including . * sysdeps/unix/sysv/linux/sys/msq_buf.h (struct msqid_ds): Don't use __pid_t since the kernel might have a different size. * sysdeps/unix/sysv/linux/sys/shm_buf.h (struct shmid_ds): Likewise. Reported by Andreas Schwab. * time/asctime.c: Update copyright. * time/dysize.c: Likewise. * time/gmtime.c: Likewise. * time/timegm.c: Likewise. * time/offtime.c: Likewise. De-ANSI-declfy. * time/tzset.c (__tzset_internal): When TZ envvar does not name a DST timezone don't default to offset -1. * sysdeps/unix/sysv/linux/net/route.h: Don't use kernel header. Reported by a sun . * resolv/Makefile: Correct spelling: subdirs-dirs -> subdir-dirs. * sysdeps/stub/sysv_signal.c: New file. Stub implementation. * Makefile (distribute): Add mcheck.h. * nis/Makefile (distribute): Add nss-nis.h. * libio/Makefile (routines): Change vdprintf to iovdprintf to prevent dist problem. * nss/Makefile (distribute): Add digits_dots.c. * sysdeps/unix/sysv/linux/Dist: Add kernel_sigaction.h. * sysdeps/unix/sysv/linux/alpha/Dist: Add sys/procfs.h. * sysdeps/unix/sysv/linux/sparc/Dist: Add clone.S. * new-malloc/Makefile (distribute): Add mcheck-init.c and mcheck.h. Mon Jan 20 17:54:28 1997 Sven Verdoolaege * manual/filesys.texi: Fix little problem (reentrant->readdir). Fri Jan 17 19:07:07 1997 Andreas Schwab * configure.in [$elf=yes]: Check for support of .previous and .popsection in the assembler. * config.h.in: Add HAVE_ASM_PREVIOUS_DIRECTIVE and HAVE_ASM_POPSECTION_DIRECTIVE. * libc-symbols.h (__make_section_unallocated) [HAVE_ELF]: Define appropriate if either .previous or .popsection is supported. (libc_warning) [HAVE_ELF]: Use it here. Sat Jan 18 22:15:26 1997 Richard Henderson * Makeconfig (CFLAGS-.so): Add -fno-common to prevent odd sorts of errors that can occur when linking libc.so. Mon Jan 20 05:20:49 1997 Ulrich Drepper * elf/dl-load.c (open_path): When running setuid don't try a directory if it is not given with the full name. * elf/Makefile (before-compile): New variable. Mention trusted-dirs.h. (trusted-dirs.h): Construct file from $(default-rpath) and $(user-defined-trusted-dirs) variables. * elf/dl-load.c (_dl_map_object): Pass additional argument to open_path which is NULL except for the LD_LIBRARY_PATH pass in which case it is a pointer to the list of directories from the trusted-dirs.h file. (open_path): Accept additional argument with list of trusted dirs. When running setuid and a list of trusted dirs is given only use those which are mentioned in the list. * elf/rtld.c (dl_main): Don't reject whole LD_LIBRARY_PATH when running setuid. Instead accept entries which do not contain a '/'. * Makeconfig: Correct comment about +(default_cflags). Mon Jan 20 05:11:14 1997 Hrvoje Niksic * time/strptime.c (recursive): Use && not || to test for valid argument. Mon Jan 20 05:06:50 1997 Ulrich Drepper * elf/ldd.sh.in: Exit with value 1 if an error occured. * elf/ldd.bash.in: Likewise. * elf/rtld.c (dl_main): Do not always ignore LD_PRELOAD when the binary runs setuid. It is save to use those entries which do not contain a '/'. This is compatible with Solaris-2. --- sysdeps/unix/sysv/linux/sparc/sigaction.c | 127 ++++++++++++++++++++++++++++++ 1 file changed, 127 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/sparc/sigaction.c (limited to 'sysdeps/unix/sysv/linux/sparc/sigaction.c') diff --git a/sysdeps/unix/sysv/linux/sparc/sigaction.c b/sysdeps/unix/sysv/linux/sparc/sigaction.c new file mode 100644 index 0000000000..e7bda77de2 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sigaction.c @@ -0,0 +1,127 @@ +/* POSIX.1 sigaction call for Linux/SPARC. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Miguel de Icaza (miguel@nuclecu.unam.mx), 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include +#include +#include + +/* The kernel will deliver signals in the old way if the signal + number is a positive number. The kernel will deliver a signal + with the new stack layout if the signal number is a negative number. + + Our sigaction code takes care of selecting the type of kernel we are + using at runtime. */ + +extern void ____sparc_signal_trampoline (int); +long ____sig_table [NSIG]; + +int +__trampoline_sigaction (int sig, struct sigaction *new, struct sigaction *old) +{ + int ret; + int need_to_hide_trick = 0; + __sighandler_t old_sh; + + if (new) + { + if (new->sa_handler != SIG_DFL && new->sa_handler != SIG_IGN) + { + old_sh = ____sig_table[sig]; + ____sig_table[sig] = (long int) new->sa_handler; + new->sa_handler = ____sparc_signal_trampoline; + need_to_hide_trick = 1; + } + } + __asm__("or %%g0,%0,%%g1\n\t" + "or %%g0,%1,%%o0\n\t" + "or %%g0,%2,%%o1\n\t" + "or %%g0,%3,%%o2\n\t" + "t 0x10\n\t" + "bcc 1f\n\t" + "or %%o0, %%g0, %0\n\t" + "sub %%g0, %%o0, %0\n\t" + "1:" + : "=r" (ret), "=r" ((long int) sig), "=r" ((long int) new), + "=r" ((long int) old) + : "0" (SYS_sigaction), "1" (sig), "2" (new), "3" (old) + : "g1", "o0", "o1", "o2"); + + if (ret >= 0) + { + if (old && old->sa_handler == ____sparc_signal_trampoline) + { + if (need_to_hide_trick) + old->sa_handler = old_sh; + else + old->sa_handler = ____sig_table[sig]; + } + if (need_to_hide_trick) + new->sa_handler = ____sig_table[sig]; + return 0; + } + __set_errno (-ret); + return -1; +} + +int +__new_sigaction (int sig, struct sigaction *new, struct sigaction *old) +{ + int ret; + + sig = -sig; + + __asm__("or %%g0,%0,%%g1\n\t" + "or %%g0,%1,%%o0\n\t" + "or %%g0,%2,%%o1\n\t" + "or %%g0,%3,%%o2\n\t" + "t 0x10\n\t" + "bcc 1f\n\t" + "or %%o0, %%g0, %0\n\t" + "sub %%g0,%%o0,%0\n\t" + "1:" + : "=r" (ret), "=r" ((long int) sig), "=r" ((long int) new), + "=r" ((long int) old) + : "0" (SYS_sigaction), "1" (sig), "2" (new), "3" (old) + : "g1", "o0", "o1", "o2"); + if (ret >= 0) + return 0; + __set_errno (-ret); + return -1; +} + +int +__sigaction (int sig, struct sigaction *new, struct sigaction *old) +{ + static (*sigact_routine) (int, struct sigaction *, struct sigaction *); + int ret; + struct sigaction sa; + + if (sigact_routine) + return (*sigact_routine) (sig, new, old); + + ret = __new_sigaction (1, NULL, &sa); + if (ret == -1) + sigact_routine = __trampoline_sigaction; + else + sigact_routine = __new_sigaction; + + return __sigaction (sig, new, old); +} +weak_alias (__sigaction, sigaction); -- cgit 1.4.1