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authorUlrich Drepper <drepper@redhat.com>1997-03-19 05:47:56 +0000
committerUlrich Drepper <drepper@redhat.com>1997-03-19 05:47:56 +0000
commite61abf83986463e263de965d487fac5cb083839a (patch)
treefa0a23e631c0c3e7f7b38c609e7fa808b1275933 /sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c
parent6465cfc9cf96f06a34227b557332f002f109f0ec (diff)
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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.c237
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);
+}