aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/powerpc/elf/start.c
diff options
context:
space:
mode:
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/powerpc/elf/start.c
parent6465cfc9cf96f06a34227b557332f002f109f0ec (diff)
downloadglibc-e61abf83986463e263de965d487fac5cb083839a.zip
glibc-e61abf83986463e263de965d487fac5cb083839a.tar.gz
glibc-e61abf83986463e263de965d487fac5cb083839a.tar.bz2
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/powerpc/elf/start.c')
-rw-r--r--sysdeps/powerpc/elf/start.c77
1 files changed, 45 insertions, 32 deletions
diff --git a/sysdeps/powerpc/elf/start.c b/sysdeps/powerpc/elf/start.c
index 9b1cf1c..001d6aa 100644
--- a/sysdeps/powerpc/elf/start.c
+++ b/sysdeps/powerpc/elf/start.c
@@ -26,22 +26,27 @@
/* Just a little assembler stub before gcc gets its hands on our
stack pointer... */
asm ("\
- .text
+ .section \".text\"
+ .align 2
.globl _start
_start:
# save the stack pointer, in case we're statically linked under Linux
- mr 8,1
+ mr 8,1
# set up an initial stack frame, and clear the LR
- addi 1,1,-16
- clrrwi 1,1,4
- li 0,0
- stw 0,0(1)
- mtlr 0
+ addi 1,1,-16
+ clrrwi 1,1,4
+ li 0,0
+ stw 0,0(1)
+ mtlr 0
# set r13 to point at the 'small data area'
- lis 13,_SDA_BASE_@ha
- addi 13,13,_SDA_BASE_@l
+ lis 13,_SDA_BASE_@ha
+ addi 13,13,_SDA_BASE_@l
# and continue below.
- b __start1
+ b __start1
+0:
+ .size _start,0b-_start
+ # undo '.section text'.
+ .previous
");
/* Define a symbol for the first piece of initialized data. */
@@ -53,38 +58,46 @@ weak_alias (__data_start, data_start)
void (*_mach_init_routine) (void);
void (*_thread_init_routine) (void);
-void __libc_init_first (int argc, char **argv, char **envp);
-int main (int argc, char **argv, char **envp, void *auxvec);
+extern void __libc_init_first (int argc, char **argv, char **envp);
+extern int main (int argc, char **argv, char **envp, void *auxvec);
#ifdef HAVE_INITFINI
-void _init (void);
-void _fini (void);
+extern void _init (void);
+extern void _fini (void);
#endif
-
+#if 0
+/* I'd like to say this, but it causes GCC to strip the whole procedure
+ from the object file (this is sort of reasonable, because you've told
+ GCC that the procedure is unused). :-( */
static void __start1(int argc, char **argv, char **envp,
- void *auxvec, void (*exitfn) (void), char **arguments)
+ void *auxvec, void (*exitfn) (void),
+ char **stack_on_entry)
__attribute__ ((unused));
-static void
+
+static
+#endif
+void
__start1(int argc, char **argv, char **envp,
void *auxvec, void (*exitfn) (void),
- char **arguments)
+ char **stack_on_entry)
{
/* the PPC SVR4 ABI says that the top thing on the stack will
be a NULL pointer, so if not we assume that we're being called
- as a statically-linked program by Linux. */
- int abi_compliant_startup = *arguments == NULL;
-
- if (!abi_compliant_startup)
- {
- argc = *(int *) arguments;
- argv = arguments+1;
- envp = argv+argc+1;
- auxvec = envp;
- while (auxvec != NULL)
- auxvec++;
- auxvec++;
- exitfn = NULL;
- }
+ as a statically-linked program by Linux... */
+ if (*stack_on_entry != NULL)
+ {
+ /* ...in which case, we have argc as the top thing on the
+ stack, followed by argv (NULL-terminated), envp (likewise),
+ and the auxilary vector. */
+ argc = *(int *) stack_on_entry;
+ argv = stack_on_entry + 1;
+ envp = argv + argc + 1;
+ auxvec = envp;
+ while (*(char **) auxvec != NULL)
+ ++auxvec;
+ ++auxvec;
+ exitfn = NULL;
+ }
if (exitfn != NULL)
atexit (exitfn);