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4447586364
kernel_optimize_test/scripts
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Steven Rostedt 4447586364 ftrace: Do not process kernel/trace/ftrace.o with C recordmcount program 
The file kernel/trace/ftrace.c references the mcount() call to
convert the mcount() callers to nops. But because it references
mcount(), the mcount() address is placed in the relocation table.

The C version of recordmcount reads the relocation table of all
object files, and it will add all references to mcount to the
__mcount_loc table that is used to find the places that call mcount()
and change the call to a nop. When recordmcount finds the mcount reference
in kernel/trace/ftrace.o, it saves that location even though the code
is not a call, but references mcount as data.

On boot up, when all calls are converted to nops, the code has a safety
check to determine what op code it is actually replacing before it
replaces it. If that op code at the address does not match, then
a warning is printed and the function tracer is disabled.

The reference to mcount in ftrace.c, causes this warning to trigger,
since the reference is not a call to mcount(). The ftrace.c file is
not compiled with the -pg flag, so no calls to mcount() should be
expected.

This patch simply makes recordmcount.c skip the kernel/trace/ftrace.c
file. This was the same solution used by the perl version of
recordmcount.

Reported-by: Ingo Molnar <mingo@elte.hu>
Cc: John Reiser <jreiser@bitwagon.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-10-15 11:49:47 -04:00
..
basic jump label: Convert dynamic debug to use jump labels 2010-09-22 16:31:19 -04:00
coccinelle Add scripts/coccinelle/deref_null.cocci 2010-06-12 00:00:29 +02:00
dtc scripts/dtc: Fix a resource leak 2010-07-02 13:51:11 +02:00
genksyms genksyms: close ref_file after use 2010-02-02 14:33:55 +01:00
kconfig Merge commit 'v2.6.36-rc1' into kbuild/rc-fixes 2010-08-20 13:53:08 +02:00
ksymoops
mod Merge branch 'params' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2010-08-12 10:01:59 -07:00
package Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-06 09:30:52 -07:00
rt-tester scripts: change scripts to use system python instead of env 2010-02-02 14:33:56 +01:00
selinux selinux: fix warning in genheaders 2010-03-16 08:47:36 +11:00
tracing tracing, perf: Convert the power tracer into an event tracer 2009-09-19 11:42:12 +02:00
.gitignore kconfig: simplification of scripts/extract-ikconfig 2009-10-07 11:44:18 -04:00
bin2c.c
bloat-o-meter
bootgraph.pl bootgraph: fix for use with dot symbols 2009-02-15 12:50:08 +01:00
checkincludes.pl checkincludes: fix perlcritic warnings 2010-03-07 21:19:57 +01:00
checkkconfigsymbols.sh checkkconfigsymbols.sh: Kconfig symbols sometimes have lowercase letters 2010-06-03 10:39:39 +02:00
checkpatch.pl checkpatch: fix extraneous EXPORT_SYMBOL* warnings 2010-08-09 20:45:09 -07:00
checkstack.pl scripts: improve checkstack 2010-03-07 21:19:09 +01:00
checksyscalls.sh Add wait4() back to the set of <asm-generic/unistd.h> syscalls. 2010-06-25 14:54:16 -04:00
checkversion.pl checkversion: perl cleanup 2010-03-07 21:22:56 +01:00
cleanfile
cleanpatch
coccicheck Add support for the C variable in the coccicheck script 2010-06-28 16:44:53 +02:00
config kbuild: add generic --set-str option to scripts/config 2009-06-14 22:48:08 +02:00
conmakehash.c Fix all -Wmissing-prototypes warnings in x86 defconfig 2009-09-23 07:39:28 -07:00
decodecode scripts: decodecode: remove bashisms 2010-06-04 10:26:35 +02:00
diffconfig kconfig: add diffconfig utility 2008-07-25 22:12:41 +02:00
export_report.pl export_report: fix perl warnings 2010-03-07 21:41:04 +01:00
extract-ikconfig kconfig: simplification of scripts/extract-ikconfig 2009-10-07 11:44:18 -04:00
gcc-goto.sh jump label: Fix GCC feature check when distcc is used 2010-09-24 09:12:25 +02:00
gcc-version.sh Remove bashisms from scripts 2009-06-09 22:37:54 +02:00
gcc-x86_32-has-stack-protector.sh stackprotector: fix multi-word cross-builds 2009-02-11 12:17:29 +01:00
gcc-x86_64-has-stack-protector.sh stackprotector: fix multi-word cross-builds 2009-02-11 12:17:29 +01:00
gen_initramfs_list.sh Merge branch 'for-35' of git://repo.or.cz/linux-kbuild 2010-06-01 08:55:52 -07:00
get_maintainer.pl scripts/get_maintainer.pl: default to not include unspecified tags 2010-05-25 08:07:05 -07:00
gfp-translate tree-wide: Assorted spelling fixes 2010-02-09 11:13:56 +01:00
headerdep.pl headerdep: perlcritic warning 2010-03-23 12:26:38 +01:00
headers_check.pl headers_check: fix perl warnings 2010-03-07 21:43:07 +01:00
headers_install.pl headers_install: use local file handles 2010-03-07 21:43:49 +01:00
headers.sh kbuild: do not check for include/asm-$ARCH 2009-12-12 13:08:14 +01:00
kallsyms.c scripts/kallsyms: suppress build warning 2010-02-02 14:33:56 +01:00
Kbuild.include kbuild: generate modules.builtin 2009-12-12 13:08:16 +01:00
kernel-doc docbook: warn on unused doc entries 2010-09-11 16:49:21 -07:00
Lindent
Makefile ftrace/x86: Add support for C version of recordmcount 2010-10-14 16:52:41 -04:00
Makefile.build ftrace/x86: Add support for C version of recordmcount 2010-10-14 16:52:41 -04:00
Makefile.clean
Makefile.fwinst firmware: silence __fw_modbuild and __fw_modinst 'Nothing to be done' messages 2008-08-02 07:52:29 +01:00
Makefile.headersinst kbuild: drop unifdef-y support 2010-08-14 22:26:52 +02:00
Makefile.help Add a target to use the Coccinelle checker 2010-06-12 00:00:29 +02:00
Makefile.host
Makefile.lib jump label: Convert dynamic debug to use jump labels 2010-09-22 16:31:19 -04:00
Makefile.modbuiltin kbuild: Create output directory in Makefile.modbuiltin 2010-06-10 12:23:08 +02:00
Makefile.modinst Revert "kbuild: strip generated symbols from *.ko" 2009-01-14 21:38:20 +01:00
Makefile.modpost trivial: fix a typo in a filename 2010-08-03 14:59:50 +02:00
makelst
markup_oops.pl Merge branch 'for-35' of git://repo.or.cz/linux-kbuild 2010-06-01 08:55:52 -07:00
mkcompile_h scripts/mkcompile_h: don't test for hardcoded paths 2010-02-02 14:33:56 +01:00
mkmakefile fixes for using make 3.82 2010-08-17 11:47:40 +02:00
mksysmap Revert "kbuild: strip generated symbols from *.ko" 2009-01-14 21:38:20 +01:00
mkuboot.sh
mkversion
module-common.lds linker script: throw away .discard section 2009-06-24 15:13:38 +09:00
namespace.pl namespace: perlcritic warnings 2010-03-07 21:38:32 +01:00
patch-kernel bugfix for scripts/patch-kernel in 2.6 sublevel stepping 2008-08-06 22:11:33 +02:00
pnmtologo.c fbdev: work around old compiler bug 2009-06-30 18:55:59 -07:00
profile2linkerlist.pl profile2linkerlist: fix perl warnings 2010-03-07 21:39:33 +01:00
recordmcount.c ftrace: Do not process kernel/trace/ftrace.o with C recordmcount program 2010-10-15 11:49:47 -04:00
recordmcount.h ftrace: Remove duplicate code for 64 and 32 bit in recordmcount.c 2010-10-14 16:54:00 -04:00
recordmcount.pl Merge branch 'tip/perf/urgent-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into trace/tip/perf/urgent-4 2010-08-16 11:17:30 -04:00
setlocalversion setlocalversion: Ignote SCMs above the linux source tree 2010-08-21 15:14:59 +02:00
show_delta scripts: change scripts to use system python instead of env 2010-02-02 14:33:56 +01:00
tags.sh Revert "kbuild: specify absolute paths for cscope" 2010-03-08 10:26:22 +01:00
unifdef.c unifdef: update to upstream revision 1.190 2009-12-12 13:08:16 +01:00
ver_linux Remove bashisms from scripts 2009-06-09 22:37:54 +02:00