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authorUlrich Drepper <drepper@redhat.com>1997-03-21 20:00:48 +0000
committerUlrich Drepper <drepper@redhat.com>1997-03-21 20:00:48 +0000
commit5ae9d168f66cc6b40f74cfb4a8f2631fc1df6a2a (patch)
tree5157016d80fd69eef4b7f2c74f83c37eebba50d1 /sysdeps/i386/dl-machine.h
parentf752bfe37962db44ac8db553d840f8215966911e (diff)
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Update.
1997-03-21 20:55  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/generic/machine-gmon.h: Update copyright.

	* sysdeps/i386/Makefile [$(subdir)=gmon] (sysdep_routines): Add
	i386-mcount.
	* sysdeps/i386/dl-machine.h [PROF] (_dl_runtime_resolve): Don't
	use regparam mechanism for call of `fixup' call.
	* sysdeps/i386/Dist: New file.
	* sysdeps/i386/i386-mcount.S: New file.  `mcount' entry point.
	* sysdeps/i386/machine-gmon.h: New file.  i386 specific version
	of gmon definitions.

1997-03-20 13:39  Andreas Jaeger  <aj@arthur.pfalz.de>

	* stdlib/tst-strtol.c (main): Save the value of errno since printf
	may modify it, use the saved errno everywhere.
	* stdlib/tst-strtod.c (main): Likewise.

1997-03-21 05:54  Ulrich Drepper  <drepper@cygnus.com>

	* posix/glob.c (glob): Fix completely broken handling of
	GLOB_BRACE and partly broken handling of GLOB_TILDE.
	Reported by Dennis Henriksen <opus@flamingo.osrl.dk>.

1997-03-20 20:22  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/readv.c: Don't emulate readv with small
	UIO_FASTIOV value by multiple readv calls since we need atomicity.
	* sysdeps/unix/sysv/linux/writev.c: Likewise.
	Reported by Matthis Urlichs.

1997-03-20 04:34  Roland McGrath  <roland@baalperazim.frob.com>

	* sysdeps/unix/sysv/linux/i386/sysdep.S (CALL_MCOUNT): Clear this
	macro so ENTRY(__syscall_error) doesn't insert a call to _mcount,
	which clobbers %eax.

	* Makeconfig [$(elf)=yes] (+prector, +postctor): New variables for
	crtbegin.o/crtend.o, using gcc to find them.
	(+link): Use them.

1997-03-20 00:06  Richard Henderson  <rth@tamu.edu>

	* gmon/sys/gmon.h: Revert the bulk of the 960930 changes, as they
	affect the alignment, and therefore the end padding of the structs.
	Reported by David Mosberger <davidm@azstarnet.com>.
	* gmon.c: Declare the variables with aligned tags to compensate.
	Use __writev instead of write for the I/O.

	* misc/sys/uio.h: Declare __writev and __readv.
	* sysdeps/posix/readv.c: Rename and alias readv to __readv.
	* sysdeps/posix/writev.c: Likewise for writev.
	* sysdeps/stub/readv.c: Likewise.
	* sysdeps/stub/writev.c: Likewise.
	* sysdeps/unix/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/readv.c: Likewise.
	* sysdeps/unix/sysv/linux/writev.c: Likewise.

	* stdlib/testdiv.c: Exit with error status when we have an error.
	* sysdeps/alpha/div.S: Initialize `quotient' and `mask'.
	* sysdeps/alpha/ldiv.S: Likewise.

	* sysdeps/unix/sysv/linux/alpha/ioperm.c: Include ctype.h for isdigit.

1997-03-20 14:51  Ulrich Drepper  <drepper@cygnus.com>

	* nis/nis_file.c: Unify error handling.

1997-03-19 18:36  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/nis_file.c (writeColdStartFile): Fix typo.
	* nis/nis_free.c (nis_free_endpoints): Use unsigned int.
	* nis/nis_free.c (nis_free_servers): Likewise.
	* nis/rpcsvc/nislib.h: Likewise.

	* sunrpc/rpc/netdb.h: Add setrpcent and endrpcent prototypes.
Diffstat (limited to 'sysdeps/i386/dl-machine.h')
-rw-r--r--sysdeps/i386/dl-machine.h32
1 files changed, 30 insertions, 2 deletions
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h
index 90ec6ce9f9..40623e795c 100644
--- a/sysdeps/i386/dl-machine.h
+++ b/sysdeps/i386/dl-machine.h
@@ -70,11 +70,16 @@ elf_machine_load_address (void)
   (dynamic_info)[DT_RELSZ]->d_un.d_val -= sizeof (Elf32_Rel);
 
 
+#ifndef PROF
 /* We add a declaration of this function here so that in dl-runtime.c
    the ELF_MACHINE_RUNTIME_TRAMPOLINE macro really can pass the parameters
-   in registers.  */
+   in registers.
+
+   We cannot use this scheme for profiling because the _mcount call
+   destroys the passed register information.  */
 static ElfW(Addr) fixup (struct link_map *l, ElfW(Word) reloc_offset)
      __attribute__ ((regparm (2), unused));
+#endif
 
 /* Set up the loaded object described by L so its unrelocated PLT
    entries will jump to the on-demand fixup code in dl-runtime.c.  */
@@ -101,7 +106,8 @@ elf_machine_runtime_setup (struct link_map *l, int lazy)
 
   /* This code is used in dl-runtime.c to call the `fixup' function
      and then redirect to the address it returns.  */
-#define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
+#ifndef PROF
+# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
 	.globl _dl_runtime_resolve
 	.type _dl_runtime_resolve, @function
 _dl_runtime_resolve:
@@ -117,6 +123,28 @@ _dl_runtime_resolve:
 	ret $8			# Jump to function address.
 	.size _dl_runtime_resolve, .-_dl_runtime_resolve
 ");
+#else
+# define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
+	.globl _dl_runtime_resolve
+	.type _dl_runtime_resolve, @function
+_dl_runtime_resolve:
+	pushl %eax		# Preserve registers otherwise clobbered.
+	pushl %ecx
+	pushl %edx
+	movl 16(%esp), %edx	# Push the arguments for `fixup'
+	movl 12(%esp), %eax
+	pushl %edx
+	pushl %eax
+	call fixup		# Call resolver.
+	popl %edx		# Pop the parameters
+	popl %ecx
+	popl %edx		# Get register content back.
+	popl %ecx
+	xchgl %eax, (%esp)	# Get %eax contents end store function address.
+	ret $8			# Jump to function address.
+	.size _dl_runtime_resolve, .-_dl_runtime_resolve
+");
+#endif
 /* The PLT uses Elf32_Rel relocs.  */
 #define elf_machine_relplt elf_machine_rel
 }