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author | Ulrich Drepper <drepper@redhat.com> | 1997-03-19 05:47:56 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-03-19 05:47:56 +0000 |
commit | e61abf83986463e263de965d487fac5cb083839a (patch) | |
tree | fa0a23e631c0c3e7f7b38c609e7fa808b1275933 /sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c | |
parent | 6465cfc9cf96f06a34227b557332f002f109f0ec (diff) | |
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Update.cvs/libc-ud-970318
1997-03-19 01:40 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/sco3.2.4/Dist: New file.
* sysdeps/unix/sysv/sysv4/Dist: Add __getpgid.c and __setpgid.c.
* sysdeps/unix/bsd/Dist: Add bsdstat.h, setrgid.c, and setruid.c.
* sysdeps/unix/sysv/Dist: Add direct.h.
* sysdeps/unix/sysv/linux/Dist: Add netinet/tcp.h.
* Make-dist ($(tardir).tar): Prefer writing temporary file to
$TMPDIR is available. The default is /tmp.
* sysdeps/generic/ip.h: Move to...
* sysdeps/generic/netinet/ip.h: ...here.
* Makefile (tests): Quote $(CC) argument to isomac program.
Patch by H.J. Lu <hjl@gnu.ai.mit.edu>.
* sysdeps/i386/setjmp.S (__setjmp): Fix fatal bug where 0 argument
is placed in wrong place on the stack.
Reported by Marc Lehmann <mlehmann@hildesheim.sgh-net.de>.
* sysdeps/tst-setjmp.c: Add new test for above problem.
* sysdeps/libm-i387/e_pow.S: Compute PIC addres early.
* sysdeps/libm-i387/e_powf.S: Likewise.
* sysdeps/libm-i387/e_powl.S: Likewise.
1997-03-18 23:18 Ulrich Drepper <drepper@cygnus.com>
* time/offtime.c (__offtime): Change type of `yg' to long int.
Reported by a sun <asun@zoology.washington.edu>.
1997-03-18 23:08 a sun <asun@zoology.washington.edu>
* sysdeps/unix/sysv/linux/net/if_ppp.h (PPP_VERSION): Define to
2.2.0 to prevent version mismatch.
1997-03-17 19:26 Andreas Jaeger <aj@arthur.pfalz.de>
* stdio-common/printf_fphex.c (MIN): Only define MIN if not
already defined.
1997-03-14 23:34 Geoff Keating <geoffk@ozemail.com.au>
* sysdeps/unix/sysv/linux/powerpc/termbits.h: Leave ioctl numbers
in ioctls.h.
* elf/rtld.c (_dl_start): Call elf_machine_runtime_setup when the
loader first relocates itself.
* sysdeps/powerpc/elf/start.c (__start1): Fix bug for static objects.
* sysdeps/powerpc/dl-machine.h (elf_machine_rela): Fix bugs in
jump slot relocation. Prefer relative branches (some PowerPC chips
don't predict absolute branches).
(elf_machine_runtime_setup): Simplify and correct expressions.
(RTLD_START): Fix bug changing _dl_starting_up.
* sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Added. Deal with
strange Linux/PPC padding of initial stack.
1997-03-11 04:14 Geoff Keating <geoffk@ozemail.com.au>
* sysdeps/unix/sysv/linux/powerpc/termbits.h: Increase NCCS to 39,
for future expansion.
* sysdeps/unix/sysv/linux/powerpc/sys/kernel_termios.h: Added.
* sysdeps/powerpc/dl-machine.h (elf_machine_rela): Explain why it
can't have a switch statement.
* sysdeps/powerpc/elf/start.c (__start1): Explain why it can't be
static.
* sysdeps/powerpc/elf/start.c (_start): Use .previous to avoid
confusing gcc's idea of the current section.
* sysdeps/powerpc/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE,
RTLD_START): Likewise.
1997-03-08 09:10 Geoff Keating <geoffk@ozemail.com.au>
* sysdeps/powerpc/dl-machine.h (elf_machine_rela,
elf_machine_runtime_setup): Flush data & instruction caches when
necessary, for 603/604 support. Add better support for large PLTs.
(elf_machine_rela): Remove relocations that wouldn't work if
anyone ever used them. Use memcpy for copy reloc, it'll be safe.
Never target branch relocations at a PLT entry.
* sysdeps/powerpc/bsd-setjmp.S: Make jump to PLT entry if we are
generating PIC.
* sysdeps/powerpc/bsd-_setjmp.S: Likewise.
* sysdeps/powerpc/setjmp.S: Likewise.
* sysdeps/unix/sysv/linux/powerpc/clone.S: Likewise.
* sysdeps/unix/sysv/linux/powerpc/socket.S: Likewise.
* sysdeps/unix/sysv/linux/powerpc/syscall.S: Likewise.
* sysdeps/unix/sysv/linux/powerpc/sysdep.h: Likewise.
* sysdeps/powerpc/elf/start.c: Clean up.
* sysdeps/powerpc/__longjmp.S: Return 'value' as result from
setjmp call.
* sysdeps/unix/sysv/linux/powerpc/statbuf.h: New file.
1997-03-09 12:36 H.J. Lu <hjl@gnu.ai.mit.edu>
* Make-dist (srcs): Add $(test-srcs).
* MakeTAGS (all-sources): Likewise.
* Makerules (depfiles, common-mostlyclean): Likewise.
* Rules (tests): Likewise.
1997-03-18 05:28 Roland McGrath <roland@frob.com>
* elf/dl-reloc.c (RESOLVE): Don't try to resolve ocal symbols.
1997-03-17 21:39 Philip Blundell <phil@london.uk.eu.org>
* nis/nss_nis/nis-service.c (_nss_nis_getservbyname_r): Allow
protocol=NULL to match any protocol rather than returning an
error.
1997-03-17 19:00 Philip Blundell <phil@london.uk.eu.org>
* nss/nss_files/files-service.c (servbyname): Match any protocol
if proto==NULL.
1997-03-18 05:17 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/alpha/fcntlbits.h: Don't define O_NORW.
* sysdeps/unix/sysv/linux/fcntlbits.h: Likewise.
Proposed by Thomas Bushnell, n/BSG.
1997-03-18 07:53 H.J. Lu <hjl@gnu.ai.mit.edu>
* sysdeps/generic/setenv.c (setenv): Don't copy name when we reuse
the buffer for replacement.
1997-03-16 19:30 H.J. Lu <hjl@gnu.ai.mit.edu>
* sysdeps/unix/sysv/linux/syscalls.list: Add sys_fstat,
sys_lstat and sys_stat.
1997-03-17 12:43 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
Add NIS+ functions
* shlib-versions: Add libnss_nisplus.
* nis/Makefile: Add NIS+ source files.
* nis/nis_call.c: New file.
* nis/nis_clone.c: New file.
* nis/nis_error.c: New file.
* nis/nis_file.c: New file.
* nis/nis_free.c: New file.
* nis/nis_intern.c: New file.
* nis/nis_intern.h: New file.
* nis/nis_local_names.c: New file.
* nis/nis_names.c: New file.
* nis/nis_print.c: New file.
* nis/nis_server.c: New file.
* nis/nis_subr.c: New file.
* nis/nis_table.c: New file.
* nis/nis_xdr.c: New file.
* nis/nss-nisplus.h: New file.
* nis/nss_nisplus/nisplus-alias.c: New file.
* nis/nss_nisplus/nisplus-ethers.c: New file.
* nis/nss_nisplus/nisplus-grp.c: New file.
* nis/nss_nisplus/nisplus-hosts.c: New file.
* nis/nss_nisplus/nisplus-netgrp.c: New file.
* nis/nss_nisplus/nisplus-network.c: New file.
* nis/nss_nisplus/nisplus-proto.c: New file.
* nis/nss_nisplus/nisplus-publickey.c: New file.
* nis/nss_nisplus/nisplus-pwd.c: New file.
* nis/nss_nisplus/nisplus-rpc.c: New file.
* nis/nss_nisplus/nisplus-service.c: New file.
* nis/nss_nisplus/nisplus-spwd.c: New file.
* nis/rpcsvc/nis.h: New file.
* nis/rpcsvc/nis.x: New file.
* nis/rpcsvc/nis_object.x: New file.
* nis/rpcsvc/nis_tags.h: New file.
* nis/rpcsvc/nislib.h: New file.
1997-03-17 12:52 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>
* mach/devstream.c (output/write_some): Don't try and write more
than IO_INBAND_MAX in a single call to device_write_inband.
* sysdeps/libm-ieee754/w_atan2.c: Don't ignore exception if library
* sysdeps/libm-ieee754/w_atan2f.c: Likewise.
* sysdeps/libm-ieee754/w_atan2l.c: Likewise.
* sysdeps/unix/sysv/linux/sys/mman.h (msync): Add description for
* stdlib/atoll.c: Undefine atoll, not atol.
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c b/sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c new file mode 100644 index 0000000000..eb732d6fb1 --- /dev/null +++ b/sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c @@ -0,0 +1,237 @@ +/* Operating system support for run-time dynamic linker. Linux/PPC version. + Copyright (C) 1995, 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 <elf.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <link.h> +#include <unistd.h> +#include <stdarg.h> +#include <string.h> + + +extern int _dl_argc; +extern char **_dl_argv; +extern char **_environ; +extern size_t _dl_pagesize; +extern void _end; +extern void _start (void); + +int __libc_enable_secure; +int __libc_multiple_libcs; /* Defining this here avoids the inclusion + of init-first. */ + +ElfW(Addr) +_dl_sysdep_start (void **start_argptr, + void (*dl_main) (const ElfW(Phdr) *phdr, ElfW(Word) phnum, + ElfW(Addr) *user_entry)) +{ + const ElfW(Phdr) *phdr = NULL; + ElfW(Word) phnum = 0; + ElfW(Addr) user_entry; + ElfW(auxv_t) *av; + uid_t uid = 0; + uid_t euid = 0; + gid_t gid = 0; + gid_t egid = 0; + unsigned int seen; + + user_entry = (ElfW(Addr)) &_start; + _dl_argc = *(long *) start_argptr; + _dl_argv = (char **) start_argptr + 1; + _environ = &_dl_argv[_dl_argc + 1]; + start_argptr = (void **) _environ; + while (*start_argptr) + ++start_argptr; + ++start_argptr; + + if (*start_argptr == 0 && + ((unsigned)(char *)start_argptr & 0xF) != 0) + { + unsigned test_sap = (int)(char *)start_argptr; + test_sap = test_sap + 0xF & ~0xF; + if (*(long *)(char *)test_sap == AT_PHDR) + start_argptr = (void **)(char *)test_sap; + } + + seen = 0; +#define M(type) (1 << (type)) + + for (av = (void *) start_argptr; + av->a_type != AT_NULL; + seen |= M ((++av)->a_type)) + switch (av->a_type) + { + case AT_PHDR: + phdr = av->a_un.a_ptr; + break; + case AT_PHNUM: + phnum = av->a_un.a_val; + break; + case AT_PAGESZ: + _dl_pagesize = av->a_un.a_val; + break; + case AT_ENTRY: + user_entry = av->a_un.a_val; + break; + case AT_UID: + uid = av->a_un.a_val; + break; + case AT_GID: + gid = av->a_un.a_val; + break; + case AT_EUID: + euid = av->a_un.a_val; + break; + case AT_EGID: + egid = av->a_un.a_val; + break; + } + + /* Linux doesn't provide us with any of these values on the stack + when the dynamic linker is run directly as a program. */ + +#define SEE(UID, uid) if ((seen & M (AT_##UID)) == 0) uid = __get##uid () + SEE (UID, uid); + SEE (GID, gid); + SEE (EUID, euid); + SEE (EGID, egid); + + + __libc_enable_secure = uid != euid || gid != egid; + + __brk (0); /* Initialize the break. */ + + if (__sbrk (0) == &_end) + { + /* The dynamic linker was run as a program, and so the initial break + starts just after our bss, at &_end. The malloc in dl-minimal.c + will consume the rest of this page, so tell the kernel to move the + break up that far. When the user program examines its break, it + will see this new value and not clobber our data. */ + size_t pg = __getpagesize (); + + __sbrk (pg - ((&_end - (void *) 0) & pg)); + __sbrk (pg - ((&_end - (void *) 0) & (pg - 1))); + } + + (*dl_main) (phdr, phnum, &user_entry); + return user_entry; +} + +void +_dl_sysdep_start_cleanup (void) +{ +} + +#ifndef MAP_ANON +/* This is only needed if the system doesn't support MAP_ANON. */ + +int +_dl_sysdep_open_zero_fill (void) +{ + return __open ("/dev/zero", O_RDONLY); +} +#endif + +/* Read the whole contents of FILE into new mmap'd space with given + protections. *SIZEP gets the size of the file. */ + +void * +_dl_sysdep_read_whole_file (const char *file, size_t *sizep, int prot) +{ + void *result; + struct stat st; + int fd = __open (file, O_RDONLY); + if (fd < 0) + return NULL; + if (__fstat (fd, &st) < 0) + result = NULL; + else + { + /* Map a copy of the file contents. */ + result = __mmap (0, st.st_size, prot, +#ifdef MAP_COPY + MAP_COPY +#else + MAP_PRIVATE +#endif +#ifdef MAP_FILE + | MAP_FILE +#endif + , fd, 0); + if (result == (void *) -1) + result = NULL; + else + *sizep = st.st_size; + } + __close (fd); + return result; +} + +void +_dl_sysdep_fatal (const char *msg, ...) +{ + va_list ap; + + va_start (ap, msg); + do + { + size_t len = strlen (msg); + __write (STDERR_FILENO, msg, len); + msg = va_arg (ap, const char *); + } while (msg); + va_end (ap); + + _exit (127); +} + + +void +_dl_sysdep_error (const char *msg, ...) +{ + va_list ap; + + va_start (ap, msg); + do + { + size_t len = strlen (msg); + __write (STDERR_FILENO, msg, len); + msg = va_arg (ap, const char *); + } while (msg); + va_end (ap); +} + + +void +_dl_sysdep_message (const char *msg, ...) +{ + va_list ap; + + va_start (ap, msg); + do + { + size_t len = strlen (msg); + __write (STDOUT_FILENO, msg, len); + msg = va_arg (ap, const char *); + } while (msg); + va_end (ap); +} |