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authorUlrich Drepper <drepper@redhat.com>1998-08-24 16:46:16 +0000
committerUlrich Drepper <drepper@redhat.com>1998-08-24 16:46:16 +0000
commited1ac6a2d6c744bdbd4751efc86326ceafeac26c (patch)
tree5ca6ee6384dfd1a25493058d4debe985b101a3b0 /sysdeps/unix
parentc2228a513135bb229cd9c9984e38e52143d5f6dd (diff)
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Update.
1998-08-24 16:34 Ulrich Drepper <drepper@cygnus.com> * debug/catchsegv.sh: Handle text preceding backtrace better. * sysdeps/generic/segfault.c: Allow register dump. Allow handler to be installed for other signals than SIGSEGV. * sysdeps/generic/register-dump.h: New file. * sysdeps/i386/register-dump.h: New file. * sysdeps/powerpc/register-dump.h: New file. * sysdeps/unix/sysv/linux/i386/profil-counter.h: Use macros from sigcontextinfo.h. * sysdeps/unix/sysv/linux/powerpc/profil-counter.h: Use i386 version. 1998-08-24 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h: New file. 1998-08-09 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/unix/sysv/linux/powerpc/chown.c: New file. * sysdeps/unix/sysv/linux/powerpc/lchown.S: New file. * sysdeps/unix/sysv/linux/powerpc/syscalls.list: Add chown, remove getresuid, getresgid. 1998-08-16 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/unix/sysv/linux/powerpc/clone.S: Fix bugs. Set up stack pointer in userland. 1998-08-21 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/sys/mount.h (MNT_FORCE): Define as enum and fix value. 1998-08-22 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/ldd.bash.in: Add missing quotes around $file. Make loop over arguments Bourne shell compatible. Don't exit unsuccessfully if nonelf returns successfully. Avoid duplicating most of the script. * sysdeps/unix/sysv/linux/ldd-rewrite.sed: Add missing quotes around $file. 1998-08-24 10:37 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * libio/Versions (_IO_do_write, _IO_file_attach, _IO_file_close_it, _IO_file_finish, _IO_file_fopen, _IO_file_init, _IO_file_overflow, _IO_file_seekoff, _IO_file_setbuf, _IO_file_sync, _IO_file_underflow, _IO_file_write, _IO_file_xsputn): Added to GLIBC_2.1. * libio/fileops.c (_IO_do_write, _IO_file_attach, _IO_file_close_it, _IO_file_finish, _IO_file_fopen, _IO_file_init, _IO_file_overflow, _IO_file_seekoff, _IO_file_setbuf, _IO_file_sync, _IO_file_underflow, _IO_file_write, _IO_file_xsputn): Change the prefix to "_IO_new_". Added to GLIBC_2.1. * libio/libioP.h (_IO_do_write, _IO_file_attach, _IO_file_close_it, _IO_file_finish, _IO_file_fopen, _IO_file_init, _IO_file_overflow, _IO_file_seekoff, _IO_file_setbuf, _IO_file_sync, _IO_file_underflow, _IO_file_write, _IO_file_xsputn): Add prototypes for the prefix "_IO_new_". * libio/oldfileops.c (_IO_do_write, _IO_file_attach, _IO_file_close_it, _IO_file_finish, _IO_file_fopen, _IO_file_init, _IO_file_overflow, _IO_file_seekoff, _IO_file_setbuf, _IO_file_sync, _IO_file_underflow, _IO_file_write, _IO_file_xsputn): Added to GLIBC_2.0. * csu/initfini.c: Return to .text before __gmon_start__. * elf/elf.h (EM_FAKE_ALPHA): Rename from EM_OLD_ALPHA. (STO_MIPS_*): Rename from STO_*. (STB_MIPS_SPLIT_COMMON): Rename from STB_SPLIT_COMMON. (STO_ALPHA_NOPV, STO_ALPHA_STD_GPLOAD): New. * math/atest-exp.c (mpn_bitsize): Fix bit location calculation. (main): e3s is negative on zero. * math/atest-exp2.c: Likewise. 1998-08-23 Andreas Jaeger <aj@arthur.rhein-neckar.de> * Makerules (install): Add comment about absolute paths.
Diffstat (limited to 'sysdeps/unix')
-rw-r--r--sysdeps/unix/sysv/linux/i386/profil-counter.h5
-rw-r--r--sysdeps/unix/sysv/linux/ldd-rewrite.sed2
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/chown.c131
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/clone.S78
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/lchown.S35
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/profil-counter.h36
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h24
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/syscalls.list4
-rw-r--r--sysdeps/unix/sysv/linux/sys/mount.h6
9 files changed, 243 insertions, 78 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/profil-counter.h b/sysdeps/unix/sysv/linux/i386/profil-counter.h
index a24ea19654..50186932be 100644
--- a/sysdeps/unix/sysv/linux/i386/profil-counter.h
+++ b/sysdeps/unix/sysv/linux/i386/profil-counter.h
@@ -18,9 +18,10 @@
Boston, MA 02111-1307, USA. */
#include <signal.h>
+#include <sigcontextinfo.h>
static void
-profil_counter (int signo, struct sigcontext sc)
+profil_counter (int signo, SIGCONTEXT scp)
{
- profil_count ((void *) sc.eip);
+ profil_count ((void *) GET_PC (scp));
}
diff --git a/sysdeps/unix/sysv/linux/ldd-rewrite.sed b/sysdeps/unix/sysv/linux/ldd-rewrite.sed
index 0ad5bc4f93..7b8b6bdee0 100644
--- a/sysdeps/unix/sysv/linux/ldd-rewrite.sed
+++ b/sysdeps/unix/sysv/linux/ldd-rewrite.sed
@@ -1,7 +1,7 @@
/Maybe extra code for non-ELF binaries/a\
file=$1\
# Run the ldd stub.\
- lddlibc4 $file\
+ lddlibc4 "$file"\
# Test the result.\
if test $? -lt 3; then\
return 0;\
diff --git a/sysdeps/unix/sysv/linux/powerpc/chown.c b/sysdeps/unix/sysv/linux/powerpc/chown.c
new file mode 100644
index 0000000000..5f6c3d29ce
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/chown.c
@@ -0,0 +1,131 @@
+/* chown() compatibility.
+ Copyright (C) 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
+ 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 <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+#include <sys/syscall.h>
+#include <stdlib.h>
+
+/*
+ In Linux 2.1.x the chown functions have been changed. A new function lchown
+ was introduced. The new chown now follows symlinks - the old chown and the
+ new lchown do not follow symlinks.
+ This file emulates chown() under the old kernels.
+*/
+
+extern int __syscall_chown (const char *__file,
+ uid_t __owner, gid_t __group);
+
+int
+__chown (const char *file, uid_t owner, gid_t group)
+{
+ int err;
+ int old_errno;
+ char link[PATH_MAX+2];
+ char path[2*PATH_MAX+4];
+ int loopct;
+ int filelen;
+ static int libc_old_chown = 0 /* -1=old linux, 1=new linux, 0=unknown */;
+
+ if (libc_old_chown == 1)
+ return __syscall_chown (file, owner, group);
+
+ old_errno = errno;
+
+#ifdef __NR_lchown
+ if (libc_old_chown == 0)
+ {
+ err = __syscall_chown (file, owner, group);
+ if (err != -1 || errno != ENOSYS)
+ {
+ libc_old_chown = 1;
+ return err;
+ }
+ libc_old_chown = -1;
+ }
+#endif
+
+ err = __readlink (file, link, PATH_MAX+1);
+ if (err == -1)
+ {
+ errno = old_errno;
+ return __lchown(file, owner, group);
+ }
+
+ filelen = strlen (file) + 1;
+ if (filelen > sizeof(path))
+ {
+ errno = ENAMETOOLONG;
+ return -1;
+ }
+ memcpy (path, file, filelen);
+
+ /* 'The system has an arbitrary limit...' In practise, we'll hit
+ ENAMETOOLONG before this, usually. */
+ for (loopct = 0; loopct < 128; loopct++)
+ {
+ int linklen;
+
+ if (err >= PATH_MAX+1)
+ {
+ errno = ENAMETOOLONG;
+ return -1;
+ }
+
+ link[err] = 0; /* Null-terminate string, just-in-case. */
+
+ linklen = strlen (link) + 1;
+
+ if (link[0] == '/')
+ memcpy (path, link, linklen);
+ else
+ {
+ filelen = strlen (path);
+
+ while (filelen > 1 && path[filelen-1] == '/')
+ filelen--;
+ while (filelen > 0 && path[filelen-1] != '/')
+ filelen--;
+ if (filelen + linklen > sizeof(path))
+ {
+ errno = ENAMETOOLONG;
+ return -1;
+ }
+ memcpy (path+filelen, link, linklen);
+ }
+
+ err = __readlink(path, link, PATH_MAX+1);
+
+ if (err == -1)
+ {
+ errno = old_errno;
+ return __lchown(path, owner, group);
+ }
+ }
+ errno = ELOOP;
+ return -1;
+}
+
+#if defined PIC && defined DO_VERSIONING
+default_symbol_version (__chown, chown, GLIBC_2.1);
+#else
+weak_alias (__chown, chown)
+#endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/clone.S b/sysdeps/unix/sysv/linux/powerpc/clone.S
index 6209922b6b..69d2c5f586 100644
--- a/sysdeps/unix/sysv/linux/powerpc/clone.S
+++ b/sysdeps/unix/sysv/linux/powerpc/clone.S
@@ -1,5 +1,5 @@
/* Wrapper around clone system call.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 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
@@ -28,56 +28,60 @@
/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
ENTRY(__clone)
- /* Set up stack frame, save registers. */
- stwu %r1,-32(%r1)
/* Check for child_stack == NULL || fn == NULL. */
- cmpwi %cr0,%r4,0
- stw %r31,16(%r1)
- cmpwi %cr1,%r3,0
- stw %r30,20(%r1)
- beq- %cr0,badargs
- beq- %cr1,badargs
+ cmpwi %cr0,%r4,0
+ cmpwi %cr1,%r3,0
+ cror cr0*4+eq,cr1*4+eq,cr0*4+eq
+ beq- %cr0,L(badargs)
+ /* Set up stack frame for parent. */
+ stwu %r1,-32(%r1)
+ stmw %r29,16(%r1)
+
/* Set up stack frame for child. */
- addi %r4,%r4,-16
- clrrwi %r4,%r4,4
- li %r0,0
- stw %r0,0(%r4)
+ clrrwi %r4,%r4,4
+ li %r0,0
+ stwu %r0,-16(%r4)
- /* Save fn, args across syscall. */
- mr %r30,%r3 /* Function in r30. */
- mr %r31,%r6 /* Arguments in r31. */
+ /* Save fn, args, stack across syscall. */
+ mr %r29,%r3 /* Function in r29. */
+ mr %r30,%r4 /* Stack pointer in r30. */
+ mr %r31,%r6 /* Argument in r31. */
/* 'flags' argument is first parameter to clone syscall. (The other
argument is the stack pointer, already in r4.) */
- mr %r3,%r5
+ mr %r3,%r5
/* Do the call. */
DO_CALL(SYS_ify(clone))
- bso- error
- beq child
- /* Parent. Restore registers & return. */
- lwz %r31,16(%r1)
- lwz %r30,20(%r1)
- addi %r1,%r1,32
- blr
+ /* Check for child process. */
+ cmpwi %cr1,%r3,0
+ crandc cr1*4+eq,cr1*4+eq,cr0*4+so
+ bne- %cr1,L(parent) /* The '-' is to minimise the race. */
-child:
+ /* On at least mklinux DR3a5, clone() doesn't actually change
+ the stack pointer. I'm pretty sure this is a bug, because
+ it adds a race condition if a signal is sent to a thread
+ just after it is created (in the previous three instructions). */
+ mr %r1,%r30
/* Call procedure. */
- mtlr %r30
- mr %r3,%r31
- blrl
+ mtctr %r29
+ mr %r3,%r31
+ bctrl
/* Call _exit with result from procedure. */
- b JUMPTARGET(_exit)
-
-badargs:
- li %r3,EINVAL
-error:
- lwz %r31,16(%r1)
- lwz %r30,20(%r1)
- addi %r1,%r1,32
- b JUMPTARGET(__syscall_error)
+ b JUMPTARGET(_exit)
+
+L(parent):
+ /* Parent. Restore registers & return. */
+ lmw %r29,16(%r1)
+ addi %r1,%r1,32
+ bnslr+
+ b JUMPTARGET(__syscall_error)
+
+L(badargs):
+ li %r3,EINVAL
+ b JUMPTARGET(__syscall_error)
END (__clone)
weak_alias (__clone, clone)
diff --git a/sysdeps/unix/sysv/linux/powerpc/lchown.S b/sysdeps/unix/sysv/linux/powerpc/lchown.S
new file mode 100644
index 0000000000..9195eab516
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/lchown.S
@@ -0,0 +1,35 @@
+/* lchown system call.
+ Copyright (C) 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
+ 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. */
+
+/* Some old kernel headers call lchown() 'chown'. The number is
+ the same. */
+
+#include <sysdep.h>
+
+#ifdef __NR_lchown
+ PSEUDO (__lchown, lchown, 3)
+#else
+ PSEUDO (__lchown, chown, 3)
+#endif
+ ret
+ PSEUDO_END(__lchown)
+ weak_alias (__lchown, lchown)
+#if defined PIC && defined DO_VERSIONING
+ symbol_version (__lchown, chown, GLIBC_2.0);
+#endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/profil-counter.h b/sysdeps/unix/sysv/linux/powerpc/profil-counter.h
index 4be6f11270..8a6a0bcf3d 100644
--- a/sysdeps/unix/sysv/linux/powerpc/profil-counter.h
+++ b/sysdeps/unix/sysv/linux/powerpc/profil-counter.h
@@ -1,34 +1,2 @@
-/* Low-level statistical profiling support function. Linux/PowerPC version.
- Copyright (C) 1996, 1997 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
- 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 <sys/ptrace.h>
-
-/* You can also do this by using
- void
- profil_counter (int signo, struct pt_regs *pt)
- {
- profil_count ((void *) pt->nip);
- }
- */
-
-void
-profil_counter (int signo, void **regs)
-{
- profil_count (regs[PT_NIP]);
-}
+/* We can use the ix86 version. */
+#include <sysdeps/unix/sysv/linux/i386/profil-counter.h>
diff --git a/sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h b/sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h
new file mode 100644
index 0000000000..2a7a2fe5c8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h
@@ -0,0 +1,24 @@
+/* Copyright (C) 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
+ 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 <sys/ptrace.h>
+
+#define SIGCONTEXT void **
+#define GET_PC(ctx) ((ctx)[PT_NIP])
+#define GET_FRAME(ctx) (*(void **)(ctx)[PT_R1])
+#define GET_STACK(ctx) ((ctx)[PT_R1])
diff --git a/sysdeps/unix/sysv/linux/powerpc/syscalls.list b/sysdeps/unix/sysv/linux/powerpc/syscalls.list
index 605762a2a4..3af0c5b6f8 100644
--- a/sysdeps/unix/sysv/linux/powerpc/syscalls.list
+++ b/sysdeps/unix/sysv/linux/powerpc/syscalls.list
@@ -1,6 +1,4 @@
# File name Caller Syscall name # args Strong name Weak names
s_llseek llseek _llseek 5 __sys_llseek
-
-getresuid - getresuid 3 getresuid
-getresgid - getresgid 3 getresgid
+s_chown chown chown 3 __syscall_chown
diff --git a/sysdeps/unix/sysv/linux/sys/mount.h b/sysdeps/unix/sysv/linux/sys/mount.h
index f29d158fb5..862c1f0407 100644
--- a/sysdeps/unix/sysv/linux/sys/mount.h
+++ b/sysdeps/unix/sysv/linux/sys/mount.h
@@ -83,7 +83,11 @@ enum
/* Possible value for FLAGS parameter of `umount2'. */
-#define MNT_FORCE /* Force unmounting. */
+enum
+{
+ MNT_FORCE = 1 /* Force unmounting. */
+#define MNT_FORCE MNT_FORCE
+};
__BEGIN_DECLS