From a182affdd948423d4779f848954e411c94f41a54 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@gnu.org>
Date: Thu, 22 Feb 1996 15:52:20 +0000
Subject: Wed Feb 21 02:25:07 1996  Roland McGrath 
 <roland@charlie-brown.gnu.ai.mit.edu>

	* Rules (others): Depend on $(extra-objs), $(install-lib),
	$(install-bin), $(install-sbin), in object directory.

	* Makeconfig (link-libc): Don't pass -rpath option with default
	path, since ld.so should use the same default.
	* Makerules (build-shlib): Likewise.

	* Makerules (make-target-directory): Use mkinstalldirs.

	* sysdeps/mach/i386/sysdep.h: Include unix/i386/sysdep.h to
	redefine ENTRY et al.

	* sysdeps/unix/sysv/linux/i386/sysdep.h (NO_UNDERSCORES, ENTRY):
	Macros removed.  The code in unix/i386/sysdep.h should now suffice.

	* sysdeps/unix/i386/sysdep.h (ALIGNARG): New macro, defns for
	[HAVE_ELF] and not.
	(ENTRY): Use it in .align directive.
	(CALL_MCOUNT): New macro, empty unless [PROF].
	(ENTRY): Do CALL_MCOUNT just after the label.

	* Makeconfig (CPPFLAGS-.po): New variable, use -DPROF so assembly
	code can call mcount.

Tue Feb 20 23:05:16 1996  Roland McGrath  <roland@charlie-brown.gnu.ai.mit.edu>

	* time/private.h, time/zdump.c, time/zic.c: Updated verbatim from ADO;
	translation markings are now integrated in his distribution.

	* stdlib/strtod.c (round_and_return): Add missing (mp_limb) 1 cast.

	* po: New directory where `LANG.po' files for message translations
	will reside.
	* po/SYS_libc.pot: New file, template of message strings as in source.
	* MakeTAGS: New rules to build po/SYS_libc.pot automatically from
	the source using xgettext.
	* Makerules ($(..)po/%.pot): New rule.
	* manual/Makefile (../po/manual.pot): New target, make it empty.

	* sysdeps/unix/bsd/alarm.c: Moved to sysdeps/unix/alarm.c.
	* sysdeps/unix/bsd/nice.c: Moved to sysdeps/unix/nice.c.
	* sysdeps/unix/bsd/stime.c: Moved to sysdeps/unix/stime.c.
	* sysdeps/unix/bsd/time.c: Moved to sysdeps/unix/time.c.
	* sysdeps/unix/bsd/utime.c: Moved to sysdeps/unix/utime.c.
---
 sysdeps/unix/i386/sysdep.h | 40 +++++++++++++++++++++++++++++++++-------
 1 file changed, 33 insertions(+), 7 deletions(-)

(limited to 'sysdeps/unix/i386')

diff --git a/sysdeps/unix/i386/sysdep.h b/sysdeps/unix/i386/sysdep.h
index fb1781b156..16a76b1d5f 100644
--- a/sysdeps/unix/i386/sysdep.h
+++ b/sysdeps/unix/i386/sysdep.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992, 1993, 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 92, 93, 95, 96 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
@@ -20,18 +20,43 @@ Cambridge, MA 02139, USA.  */
 
 #ifdef	ASSEMBLER
 
+/* Syntactic details of assembler.  */
+
+#ifdef HAVE_ELF
+
+/* ELF uses byte-counts for .align, most others use log2 of count of bytes.  */
+#define ALIGNARG(log2) 1<<log2
+/* For ELF we need the `.type' directive to make shared libs work right.  */
+#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
+
+/* In ELF C symbols are asm symbols.  */
+#undef	NO_UNDERSCORES
+#define NO_UNDERSCORES
+
+#else
+
+#define ALIGNARG(log2) log2
+#define ASM_TYPE_DIRECTIVE(name,type) /* Nothing is specified.  */
+
+#endif
+
+
 /* Define an entry point visible from C.  */
 #define	ENTRY(name)							      \
   ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name);				      \
   ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function)			      \
-  .align 4;								      \
-  C_LABEL(name)
+  .align ALIGNARG(4);							      \
+  C_LABEL(name)								      \
+  CALL_MCOUNT
 
-/* For ELF we need the `.type' directive to make shared libs work right.  */
-#ifdef HAVE_ELF
-#define ASM_TYPE_DIRECTIVE(name,typearg)	.type name,typearg;
+/* If compiled for profiling, call `mcount' at the start of each function.  */
+#ifdef	PROF
+/* The mcount code relies on a normal frame pointer being on the stack
+   to locate our caller, so push one just for its benefit.  */
+#define CALL_MCOUNT \
+  pushl %ebp; movl %esp, %ebp; call JUMPTARGET(mcount); popl %ebp;
 #else
-#define ASM_TYPE_DIRECTIVE(name,type) /* Nothing is specified.  */
+#define CALL_MCOUNT		/* Do nothing.  */
 #endif
 
 #ifdef	NO_UNDERSCORES
@@ -39,6 +64,7 @@ Cambridge, MA 02139, USA.  */
    on this system, the asm identifier `syscall_error' intrudes on the
    C name space.  Make sure we use an innocuous name.  */
 #define	syscall_error	__syscall_error
+#define mcount		_mcount
 #endif
 
 #define	PSEUDO(name, syscall_name, args)				      \
-- 
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