diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/profil-counter.h | 5 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/ldd-rewrite.sed | 2 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/chown.c | 131 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/clone.S | 78 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/lchown.S | 35 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/profil-counter.h | 36 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h | 24 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/syscalls.list | 4 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sys/mount.h | 6 |
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 |