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Build compiler checksum from object files v2

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gcc/

2010-10-07  Andi Kleen  <ak@linux.intel.com>

	* Makefile.in (MOSTLYCLEANFILES): Remove cc1*dummy, add
	checksum-options.
	(checksum-options): Add.
	(cc1-dummy): Remove.
	(cc1-checksum): Change to run checksum over object files
	and options only.
	* dummy-checksum.c: Remove.
	* genchecksum.c: Update copyright.
	(usage): Allow multiple arguments.
	(BLOCKSIZE): Add.
	(dosum): Change for incremental checksum. Remove C output.
	(main): Iterate over all argument files. Add C output.

gcc/cp

2010-10-07  Andi Kleen  <ak@linux.intel.com>

	* Make-lang.in (c++_OBJS): Remove dummy-checksum.o.
	(cc1plus-dummy): Remove.
	(cc1plus-checksum): Change to run checksum over object files
        and options only.

gcc/objc

2010-10-07  Andi Kleen  <ak@linux.intel.com>

	* Make-lang.in (cc1obj-dummy): Remove.
	(cc1obj-checksum): Change to run checksum over object files
        and options only.

gcc/objcp

2010-10-07  Andi Kleen  <ak@linux.intel.com>

	* Make-lang.in (cc1objplus-dummy): Remove.
	(cc1objplus-checksum): Change to run checksum over object files
        and options only.

From-SVN: r165305
This commit is contained in:
Andi Kleen 2010-10-11 13:06:50 +00:00 • committed by Andi Kleen
parent 128dc8e230
commit d6d5951a4a
10 changed files with 125 additions and 52 deletions
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15
gcc/ChangeLog
View file

@ -1,3 +1,18 @@
2010-10-07 Andi Kleen <ak@linux.intel.com>
* Makefile.in (MOSTLYCLEANFILES): Remove cc1*dummy, add
checksum-options.
(checksum-options): Add.
(cc1-dummy): Remove.
(cc1-checksum): Change to run checksum over object files
and options only.
* dummy-checksum.c: Remove.
* genchecksum.c: Update copyright.
(usage): Allow multiple arguments.
(BLOCKSIZE): Add.
(dosum): Change for incremental checksum. Remove C output.
(main): Iterate over all argument files. Add C output.
2010-10-11 Joseph Myers <joseph@codesourcery.com>
* params.c (set_param_value_internal): New.

20
gcc/Makefile.in
View file

@ -1489,10 +1489,10 @@ BACKEND = main.o @TREEBROWSER@ libbackend.a $(CPPLIB) $(LIBDECNUMBER)
MOSTLYCLEANFILES = insn-flags.h insn-config.h insn-codes.h \
insn-output.c insn-recog.c insn-emit.c insn-extract.c insn-peep.c \
insn-attr.h insn-attrtab.c insn-opinit.c insn-preds.c insn-constants.h \
tm-preds.h tm-constrs.h \
tm-preds.h tm-constrs.h checksum-options \
tree-check.h min-insn-modes.c insn-modes.c insn-modes.h \
genrtl.h gt-*.h gtype-*.h gtype-desc.c gtyp-input.list \
xgcc$(exeext) cpp$(exeext) cc1$(exeext) cc1*-dummy$(exeext) $(EXTRA_PASSES) \
xgcc$(exeext) cpp$(exeext) cc1$(exeext) $(EXTRA_PASSES) \
$(EXTRA_PARTS) $(EXTRA_PROGRAMS) gcc-cross$(exeext) \
$(SPECS) collect2$(exeext) lto-wrapper$(exeext) \
gcov-iov$(build_exeext) gcov$(exeext) gcov-dump$(exeext) \
@ -1832,14 +1832,16 @@ $(SPECS): xgcc$(exeext)
gcc-cross$(exeext): xgcc$(exeext)
cp xgcc$(exeext) gcc-cross$(exeext)
dummy-checksum.o : dummy-checksum.c $(CONFIG_H) $(SYSTEM_H)
checksum-options:
echo "$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS)" > checksum-options.tmp \
&& $(srcdir)/../move-if-change checksum-options.tmp checksum-options
cc1-dummy$(exeext): $(C_OBJS) dummy-checksum.o $(BACKEND) $(LIBDEPS)
+$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ $(C_OBJS) \
dummy-checksum.o $(BACKEND) $(LIBS) $(BACKENDLIBS)
cc1-checksum.c : cc1-dummy$(exeext) build/genchecksum$(build_exeext)
build/genchecksum$(build_exeext) cc1-dummy$(exeext) > $@
# compute checksum over all object files and the options
cc1-checksum.c : build/genchecksum$(build_exeext) checksum-options \
$(C_OBJS) $(BACKEND) $(LIBDEPS)
build/genchecksum$(build_exeext) $(C_OBJS) $(BACKEND) $(LIBDEPS) \
checksum-options > cc1-checksum.c.tmp && \
$(srcdir)/../move-if-change cc1-checksum.c.tmp cc1-checksum.c
cc1-checksum.o : cc1-checksum.c $(CONFIG_H) $(SYSTEM_H)

7
gcc/cp/ChangeLog
View file

@ -1,3 +1,10 @@
2010-10-07 Andi Kleen <ak@linux.intel.com>
* Make-lang.in (c++_OBJS): Remove dummy-checksum.o.
(cc1plus-dummy): Remove.
(cc1plus-checksum): Change to run checksum over object files
and options only.
2010-10-08 Joseph Myers <joseph@codesourcery.com>
* cp-objcp-common.h (LANG_HOOKS_INIT_OPTIONS_STRUCT): Define.

14
gcc/cp/Make-lang.in
View file

@ -86,17 +86,17 @@ CXX_AND_OBJCXX_OBJS = cp/call.o cp/decl.o cp/expr.o cp/pt.o cp/typeck2.o \
# Language-specific object files for C++.
CXX_OBJS = cp/cp-lang.o c-family/stub-objc.o $(CXX_AND_OBJCXX_OBJS)
c++_OBJS = $(CXX_OBJS) dummy-checksum.o cc1plus-checksum.o cp/g++spec.o
c++_OBJS = $(CXX_OBJS) cc1plus-checksum.o cp/g++spec.o
# Use strict warnings for this front end.
cp-warn = $(STRICT_WARN)
cc1plus-dummy$(exeext): $(CXX_OBJS) dummy-checksum.o $(BACKEND) $(LIBDEPS)
$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
$(CXX_OBJS) dummy-checksum.o $(BACKEND) $(LIBS) $(BACKENDLIBS)
cc1plus-checksum.c : cc1plus-dummy$(exeext) build/genchecksum$(build_exeext)
build/genchecksum$(build_exeext) cc1plus-dummy$(exeext) > $@
# compute checksum over all object files and the options
cc1plus-checksum.c : build/genchecksum$(build_exeext) checksum-options \
$(CXX_OBJS) $(BACKEND) $(LIBDEPS)
build/genchecksum$(build_exeext) $(CXX_OBJS) $(BACKEND) $(LIBDEPS) \
checksum-options > cc1plus-checksum.c.tmp && \
$(srcdir)/../move-if-change cc1plus-checksum.c.tmp cc1plus-checksum.c
cc1plus-checksum.o : cc1plus-checksum.c $(CONFIG_H) $(SYSTEM_H)

3
gcc/dummy-checksum.c
View file

@ -1,3 +0,0 @@
#include "config.h"
#include "system.h"
EXPORTED_CONST unsigned char executable_checksum[16] = { 0 };

81
gcc/genchecksum.c
View file

@ -1,5 +1,5 @@
/* Generate checksums of executables for PCH validation
Copyright (C) 2005, 2007, 2009
Copyright (C) 2005, 2007, 2009, 2010
Free Software Foundation, Inc.
This file is part of GCC.
@ -25,15 +25,18 @@ along with GCC; see the file COPYING3. If not see
static void
usage (void)
{
fputs ("Usage: genchecksums <filename>\n", stderr);
fputs ("Usage: genchecksums <filename> ...\n", stderr);
}
/* Important: BLOCKSIZE must be a multiple of 64. */
#define BLOCKSIZE 4096
static void
dosum (const char *file)
dosum (struct md5_ctx *ctx, const char *file)
{
FILE *f;
unsigned char result[16];
int i;
char buffer[BLOCKSIZE + 72];
size_t sum;
f = fopen (file, "rb");
if (!f)
@ -49,30 +52,70 @@ dosum (const char *file)
exit (1);
}
if (md5_stream (f, result) != 0
|| fclose (f) != 0)
/* Iterate over full file contents. */
while (1)
{
/* We read the file in blocks of BLOCKSIZE bytes. One call of the
computation function processes the whole buffer so that with the
next round of the loop another block can be read. */
size_t n;
sum = 0;
/* Read block. Take care for partial reads. */
do
{
n = fread (buffer + sum, 1, BLOCKSIZE - sum, f);
sum += n;
}
while (sum < BLOCKSIZE && n != 0);
if (n == 0 && ferror (f))
exit (1);
/* If end of file is reached, end the loop. */
if (n == 0)
break;
/* Process buffer with BLOCKSIZE bytes. Note that
BLOCKSIZE % 64 == 0
*/
md5_process_block (buffer, BLOCKSIZE, ctx);
}
/* Add the last bytes if necessary. */
if (sum > 0)
md5_process_bytes (buffer, sum, ctx);
if (fclose (f) != 0)
{
fprintf (stderr, "reading %s: %s\n", file, xstrerror (errno));
exit (1);
}
}
int
main (int argc, char ** argv)
{
struct md5_ctx ctx;
unsigned char result[16];
int i;
if (argc < 2)
{
usage ();
return 1;
}
md5_init_ctx (&ctx);
for (i = 1; i < argc; i++)
dosum (&ctx, argv[i]);
md5_finish_ctx (&ctx, result);
puts ("#include \"config.h\"");
puts ("#include \"system.h\"");
fputs ("EXPORTED_CONST unsigned char executable_checksum[16] = { ", stdout);
for (i = 0; i < 16; i++)
printf ("0x%02x%s", result[i], i == 15 ? " };\n" : ", ");
}
int
main (int argc, char ** argv)
{
if (argc != 2)
{
usage ();
return 1;
}
dosum (argv[1]);
return 0;
}

6
gcc/objc/ChangeLog
View file

@ -1,3 +1,9 @@
2010-10-07 Andi Kleen <ak@linux.intel.com>
* Make-lang.in (cc1obj-dummy): Remove.
(cc1obj-checksum): Change to run checksum over object files
and options only.
2010-10-07 Nicola Pero <nicola.pero@meta-innovation.com>
PR objc/45925

12
gcc/objc/Make-lang.in
View file

@ -51,13 +51,11 @@ OBJC_OBJS = objc/objc-lang.o objc/objc-act.o
objc_OBJS = $(OBJC_OBJS) cc1obj-checksum.o
cc1obj-dummy$(exeext): $(OBJC_OBJS) $(C_AND_OBJC_OBJS) dummy-checksum.o $(BACKEND) $(LIBDEPS)
+$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
$(OBJC_OBJS) $(C_AND_OBJC_OBJS) dummy-checksum.o \
$(BACKEND) $(LIBS) $(BACKENDLIBS)
cc1obj-checksum.c : cc1obj-dummy$(exeext) build/genchecksum$(build_exeext)
build/genchecksum$(build_exeext) cc1obj-dummy$(exeext) > $@
cc1obj-checksum.c : build/genchecksum$(build_exeext) checksum-options \
$(OBJC_OBJS) $(C_AND_OBJC_OBJS) $(BACKEND) $(LIBDEPS)
build/genchecksum$(build_exeext) $(OBJC_OBJS) $(C_AND_OBJC_OBJS) \
$(BACKEND) $(LIBDEPS) checksum-options > cc1obj-checksum.c.tmp && \
$(srcdir)/../move-if-change cc1obj-checksum.c.tmp cc1obj-checksum.c
cc1obj-checksum.o : cc1obj-checksum.c $(CONFIG_H) $(SYSTEM_H)

6
gcc/objcp/ChangeLog
View file

@ -1,3 +1,9 @@
2010-10-07 Andi Kleen <ak@linux.intel.com>
* Make-lang.in (cc1objplus-dummy): Remove.
(cc1objplus-checksum): Change to run checksum over object files
and options only.
2010-10-04 Andi Kleen <ak@linux.intel.com>
* Make-lang.in (cc1objplus-dummy, cc1objplus): Add + to build rule.

13
gcc/objcp/Make-lang.in
View file

@ -54,13 +54,12 @@ OBJCXX_OBJS = objcp/objcp-act.o objcp/objcp-lang.o objcp/objcp-decl.o \
obj-c++_OBJS = $(OBJCXX_OBJS) cc1objplus-checksum.o
cc1objplus-dummy$(exeext): $(OBJCXX_OBJS) dummy-checksum.o $(BACKEND) \
$(LIBDEPS)
+$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
$(OBJCXX_OBJS) dummy-checksum.o $(BACKEND) $(LIBS) $(BACKENDLIBS)
cc1objplus-checksum.c : cc1objplus-dummy$(exeext) build/genchecksum$(build_exeext)
build/genchecksum$(build_exeext) cc1objplus-dummy$(exeext) > $@
cc1objplus-checksum.c : build/genchecksum$(build_exeext) checksum-options \
$(OBJCXX_OBJS) $(BACKEND) $(LIBDEPS)
build/genchecksum$(build_exeext) $(OBJCXX_OBJS) $(BACKEND) \
$(LIBDEPS) checksum-options > cc1objplus-checksum.c && \
$(srcdir)/../move-if-change cc1objplus-checksum.c.tmp \
cc1objplus-checksum.c
cc1objplus-checksum.o : cc1objplus-checksum.c $(CONFIG_H) $(SYSTEM_H)