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1999-08-08  Ulrich Drepper  <drepper@cygnus.com>

	* string/bits/string2.h: Mark void* operations as extensions.
	* sysdeps/i386/i486/bits/string.h: Likewise.

	* debug/Makefile (routines): Add noophooks.
	(extra-libs): Add libpcprofile.  Add rules to build libpcprofile.
	* debug/noophooks.c: New file.
	* debug/pcprofile.c: New file.
This commit is contained in:
Ulrich Drepper 1999-08-08 22:20:38 +00:00
parent 754549b3be
commit 87843f1516
6 changed files with 188 additions and 74 deletions
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10
ChangeLog
View File

@ -1,3 +1,13 @@
1999-08-08 Ulrich Drepper <drepper@cygnus.com>
* string/bits/string2.h: Mark void* operations as extensions.
* sysdeps/i386/i486/bits/string.h: Likewise.
* debug/Makefile (routines): Add noophooks.
(extra-libs): Add libpcprofile. Add rules to build libpcprofile.
* debug/noophooks.c: New file.
* debug/pcprofile.c: New file.
1999-08-06 Ulrich Drepper <drepper@cygnus.com>
* rt/aio_misc.c (handle_fildes_io): Imitate the behaviour on other

8
debug/Makefile
View File

@ -24,18 +24,21 @@ subdir := debug
headers := execinfo.h
distribute = sigcontextinfo.h register-dump.h
routines := backtrace backtracesyms backtracesymsfd
routines := backtrace backtracesyms backtracesymsfd noophooks
CFLAGS-backtrace.c = -fno-omit-frame-pointer
tests = backtrace-tst
extra-libs = libSegFault
extra-libs = libSegFault libpcprofile
extra-libs-others = $(extra-libs)
libSegFault-routines = segfault
libSegFault-inhibit-o = $(filter-out .os,$(object-suffixes))
libpcprofile-routines = pcprofile
libpcprofile-inhibit-o = $(filter-out .os,$(object-suffixes))
include ../Makeconfig
distribute += catchsegv.sh
@ -58,3 +61,4 @@ $(objpfx)catchsegv: catchsegv.sh $(common-objpfx)soversions.mk \
# This ensures they will load libc.so for needed symbols if loaded by
# a statically-linked program that hasn't already loaded it.
$(objpfx)libSegFault.so: $(common-objpfx)libc.so $(common-objpfx)elf/ld.so
$(objpfx)libpcprofile.so: $(common-objpfx)libc.so $(common-objpfx)elf/ld.so

25
debug/noophooks.c Normal file
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@ -0,0 +1,25 @@
/* Noop hooks for the instrumenting functions.
Copyright (C) 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
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. */
void
__cyg_profile_func_enter (void *this_fn, void *call_site)
{
}
strong_alias (__cyg_profile_func_enter, __cyg_profile_func_exit)

75
debug/pcprofile.c Normal file
View File

@ -0,0 +1,75 @@
/* Profile PC and write result to FIFO.
Copyright (C) 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
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 <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
/* Nonzero if we are actually doing something. */
static int active;
/* The file descriptor of the FIFO. */
static int fd;
static void
__attribute__ ((constructor))
install (void)
{
/* See whether the environment variable `PCPROFILE_OUTPUT' is defined.
If yes, it should name a FIFO. We open it and mark ourself as active. */
const char *outfile = getenv ("PCPROFILE_OUTPUT");
if (outfile != NULL && *outfile != '\0')
{
fd = open (outfile, O_RDWR);
if (fd != -1)
active = 1;
}
}
static void
__attribute__ ((destructor))
uninstall (void)
{
if (active)
close (fd);
}
void
__cyg_profile_func_enter (void *this_fn, void *call_site)
{
void *buf[2];
if (! active)
return;
/* Now write out the current position and that of the caller. We do
this now, and don't cache the because we want real-time output. */
buf[0] = this_fn;
buf[1] = call_site;
write (fd, buf, sizeof buf);
}
/* We don't handle entry and exit differently here. */
strong_alias (__cyg_profile_func_enter, __cyg_profile_func_exit)

86
string/bits/string2.h
View File

@ -122,54 +122,54 @@ __STRING2_COPY_TYPE (8);
{ \
case 15: \
__u->__ui = __c * 0x01010101; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 11: \
__u->__ui = __c * 0x01010101; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 7: \
__u->__ui = __c * 0x01010101; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 3: \
__u->__usi = (unsigned short int) __c * 0x0101; \
__u = (void *) __u + 2; \
__u = __extension__ ((void *) __u + 2); \
__u->__uc = (unsigned char) __c; \
break; \
\
case 14: \
__u->__ui = __c * 0x01010101; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 10: \
__u->__ui = __c * 0x01010101; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 6: \
__u->__ui = __c * 0x01010101; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 2: \
__u->__usi = (unsigned short int) __c * 0x0101; \
break; \
\
case 13: \
__u->__ui = __c * 0x01010101; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 9: \
__u->__ui = __c * 0x01010101; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 5: \
__u->__ui = __c * 0x01010101; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 1: \
__u->__uc = (unsigned char) __c; \
break; \
\
case 16: \
__u->__ui = __c * 0x01010101; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 12: \
__u->__ui = __c * 0x01010101; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 8: \
__u->__ui = __c * 0x01010101; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 4: \
__u->__ui = __c * 0x01010101; \
case 0: \
@ -234,47 +234,47 @@ __mempcpy_small (void *__dest1,
{
case 1:
__u->__c = __src0_1;
__u = (void *) __u + 1;
__u = __extension__ ((void *) __u + 1);
break;
case 2:
__u->__usi = __src0_2;
__u = (void *) __u + 2;
__u = __extension__ ((void *) __u + 2);
break;
case 3:
__u->__usi = __src0_2;
__u = (void *) __u + 2;
__u = __extension__ ((void *) __u + 2);
__u->__c = __src2_1;
__u = (void *) __u + 1;
__u = __extension__ ((void *) __u + 1);
break;
case 4:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
break;
case 5:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
__u->__c = __src4_1;
__u = (void *) __u + 1;
__u = __extension__ ((void *) __u + 1);
break;
case 6:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
__u->__usi = __src4_2;
__u = (void *) __u + 2;
__u = __extension__ ((void *) __u + 2);
break;
case 7:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
__u->__usi = __src4_2;
__u = (void *) __u + 2;
__u = __extension__ ((void *) __u + 2);
__u->__c = __src6_1;
__u = (void *) __u + 1;
__u = __extension__ ((void *) __u + 1);
break;
case 8:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
__u->__ui = __src4_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
break;
}
return (void *) __u;
@ -415,7 +415,7 @@ __strcpy_small (char *__dest,
break;
case 3:
__u->__usi = __src0_2;
__u = (void *) __u + 2;
__u = __extension__ ((void *) __u + 2);
__u->__uc = '\0';
break;
case 4:
@ -423,24 +423,24 @@ __strcpy_small (char *__dest,
break;
case 5:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
__u->__uc = '\0';
break;
case 6:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
__u->__usi = __src4_2;
break;
case 7:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
__u->__usi = __src4_2;
__u = (void *) __u + 2;
__u = __extension__ ((void *) __u + 2);
__u->__uc = '\0';
break;
case 8:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
__u->__ui = __src4_4;
break;
}
@ -571,40 +571,40 @@ __stpcpy_small (char *__dest,
break;
case 2:
__u->__usi = __src0_2;
__u = (void *) __u + 1;
__u = __extension__ ((void *) __u + 1);
break;
case 3:
__u->__usi = __src0_2;
__u = (void *) __u + 2;
__u = __extension__ ((void *) __u + 2);
__u->__uc = '\0';
break;
case 4:
__u->__ui = __src0_4;
__u = (void *) __u + 3;
__u = __extension__ ((void *) __u + 3);
break;
case 5:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
__u->__uc = '\0';
break;
case 6:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
__u->__usi = __src4_2;
__u = (void *) __u + 1;
__u = __extension__ ((void *) __u + 1);
break;
case 7:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
__u->__usi = __src4_2;
__u = (void *) __u + 2;
__u = __extension__ ((void *) __u + 2);
__u->__uc = '\0';
break;
case 8:
__u->__ui = __src0_4;
__u = (void *) __u + 4;
__u = __extension__ ((void *) __u + 4);
__u->__ui = __src4_4;
__u = (void *) __u + 3;
__u = __extension__ ((void *) __u + 3);
break;
}
return &__u->__uc;

58
sysdeps/i386/i486/bits/string.h
View File

@ -230,54 +230,54 @@ memcmp (__const void *__s1, __const void *__s2, size_t __n)
{ \
case 15: \
__u->__ui = __c; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 11: \
__u->__ui = __c; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 7: \
__u->__ui = __c; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 3: \
__u->__usi = (unsigned short int) __c; \
__u = (void *) __u + 2; \
__u = __extension__ ((void *) __u + 2); \
__u->__uc = (unsigned char) __c; \
break; \
\
case 14: \
__u->__ui = __c; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 10: \
__u->__ui = __c; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 6: \
__u->__ui = __c; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 2: \
__u->__usi = (unsigned short int) __c; \
break; \
\
case 13: \
__u->__ui = __c; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 9: \
__u->__ui = __c; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 5: \
__u->__ui = __c; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 1: \
__u->__uc = (unsigned char) __c; \
break; \
\
case 16: \
__u->__ui = __c; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 12: \
__u->__ui = __c; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 8: \
__u->__ui = __c; \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
case 4: \
__u->__ui = __c; \
case 0: \
@ -529,7 +529,7 @@ __strlen_g (__const char *__str)
break; \
case 3: \
__u->__usi = __STRING_SMALL_GET16 (src, 0); \
__u = (void *) __u + 2; \
__u = __extension__ ((void *) __u + 2); \
__u->__uc = '\0'; \
break; \
case 4: \
@ -537,24 +537,24 @@ __strlen_g (__const char *__str)
break; \
case 5: \
__u->__ui = __STRING_SMALL_GET32 (src, 0); \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
__u->__uc = '\0'; \
break; \
case 6: \
__u->__ui = __STRING_SMALL_GET32 (src, 0); \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
__u->__usi = __STRING_SMALL_GET16 (src, 4); \
break; \
case 7: \
__u->__ui = __STRING_SMALL_GET32 (src, 0); \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
__u->__usi = __STRING_SMALL_GET16 (src, 4); \
__u = (void *) __u + 2; \
__u = __extension__ ((void *) __u + 2); \
__u->__uc = '\0'; \
break; \
case 8: \
__u->__ui = __STRING_SMALL_GET32 (src, 0); \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
__u->__ui = __STRING_SMALL_GET32 (src, 4); \
break; \
} \
@ -616,40 +616,40 @@ __strcpy_g (char *__dest, __const char *__src)
break; \
case 2: \
__u->__usi = __STRING_SMALL_GET16 (src, 0); \
__u = (void *) __u + 1; \
__u = __extension__ ((void *) __u + 1); \
break; \
case 3: \
__u->__usi = __STRING_SMALL_GET16 (src, 0); \
__u = (void *) __u + 2; \
__u = __extension__ ((void *) __u + 2); \
__u->__uc = '\0'; \
break; \
case 4: \
__u->__ui = __STRING_SMALL_GET32 (src, 0); \
__u = (void *) __u + 3; \
__u = __extension__ ((void *) __u + 3); \
break; \
case 5: \
__u->__ui = __STRING_SMALL_GET32 (src, 0); \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
__u->__uc = '\0'; \
break; \
case 6: \
__u->__ui = __STRING_SMALL_GET32 (src, 0); \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
__u->__usi = __STRING_SMALL_GET16 (src, 4); \
__u = (void *) __u + 1; \
__u = __extension__ ((void *) __u + 1); \
break; \
case 7: \
__u->__ui = __STRING_SMALL_GET32 (src, 0); \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
__u->__usi = __STRING_SMALL_GET16 (src, 4); \
__u = (void *) __u + 2; \
__u = __extension__ ((void *) __u + 2); \
__u->__uc = '\0'; \
break; \
case 8: \
__u->__ui = __STRING_SMALL_GET32 (src, 0); \
__u = (void *) __u + 4; \
__u = __extension__ ((void *) __u + 4); \
__u->__ui = __STRING_SMALL_GET32 (src, 4); \
__u = (void *) __u + 3; \
__u = __extension__ ((void *) __u + 3); \
break; \
} \
(char *) __u; }))