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
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
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
gcc-x86_64-has-stack-protector.sh
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.sh	kbuild: do not check for include/asm-$ARCH	2009-12-12 13:08:14 +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
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
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
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
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
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