From 5ae9d168f66cc6b40f74cfb4a8f2631fc1df6a2a Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 21 Mar 1997 20:00:48 +0000 Subject: Update. 1997-03-21 20:55 Ulrich Drepper * sysdeps/generic/machine-gmon.h: Update copyright. * sysdeps/i386/Makefile [$(subdir)=gmon] (sysdep_routines): Add i386-mcount. * sysdeps/i386/dl-machine.h [PROF] (_dl_runtime_resolve): Don't use regparam mechanism for call of `fixup' call. * sysdeps/i386/Dist: New file. * sysdeps/i386/i386-mcount.S: New file. `mcount' entry point. * sysdeps/i386/machine-gmon.h: New file. i386 specific version of gmon definitions. 1997-03-20 13:39 Andreas Jaeger * stdlib/tst-strtol.c (main): Save the value of errno since printf may modify it, use the saved errno everywhere. * stdlib/tst-strtod.c (main): Likewise. 1997-03-21 05:54 Ulrich Drepper * posix/glob.c (glob): Fix completely broken handling of GLOB_BRACE and partly broken handling of GLOB_TILDE. Reported by Dennis Henriksen . 1997-03-20 20:22 Ulrich Drepper * sysdeps/unix/sysv/linux/readv.c: Don't emulate readv with small UIO_FASTIOV value by multiple readv calls since we need atomicity. * sysdeps/unix/sysv/linux/writev.c: Likewise. Reported by Matthis Urlichs. 1997-03-20 04:34 Roland McGrath * sysdeps/unix/sysv/linux/i386/sysdep.S (CALL_MCOUNT): Clear this macro so ENTRY(__syscall_error) doesn't insert a call to _mcount, which clobbers %eax. * Makeconfig [$(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 * 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 . * 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 * nis/nis_file.c: Unify error handling. 1997-03-19 18:36 Thorsten Kukuk * 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. --- sysdeps/i386/i386-mcount.S | 65 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 sysdeps/i386/i386-mcount.S (limited to 'sysdeps/i386/i386-mcount.S') diff --git a/sysdeps/i386/i386-mcount.S b/sysdeps/i386/i386-mcount.S new file mode 100644 index 0000000000..60d52e98fa --- /dev/null +++ b/sysdeps/i386/i386-mcount.S @@ -0,0 +1,65 @@ +/* i386-specific implemetation of profiling support. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 1997. + + 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 + +/* We need a special version of the `mcount' function since for ix86 it + must not clobber any register. This has several reasons: + - there is a bug in gcc as of version 2.7.2.2 which prohibits the + use of profiling together with nested functions + - the ELF `fixup' function uses GCC's regparm feature + - some (future) systems might want to pass parameters in registers. */ + + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(_mcount) + ASM_TYPE_DIRECTIVE(C_SYMBOL_NAME(_mcount), @function) + .align ALIGNARG(4) +C_LABEL(_mcount) + /* Save the caller-clobbered registers. */ + pushl %eax + pushl %ecx + pushl %edx + + movl 12(%esp), %eax + movl 4(%ebp), %ecx + pushl %eax + pushl %ecx + +#ifdef PIC + call 1f +1: popl %ecx + addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ecx + movl C_SYMBOL_NAME(__mcount_internal@GOTOFF)(%ecx), %eax + call *%eax +#else + call C_SYMBOL_NAME(__mcount_internal) +#endif + popl %ecx + popl %eax /* Pop the parameters. */ + + /* Pop the saved registers. Please note that `mcount' has no + return value. */ + popl %edx + popl %ecx + popl %eax + ret + ASM_SIZE_DIRECTIVE(C_SYMBOL_NAME(_mcount)) + +#undef mcount +weak_alias(_mcount, mcount) -- cgit v1.2.3