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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/powerpc/elf/start.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/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 9b1cf1c026..001d6aa97c 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);