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Steven Rostedt d7b4d6de57 ftrace: Remove recursion between recordmcount and scripts/mod/empty 
When DYNAMIC_FTRACE is enabled and we use the C version of recordmcount,
all objects are run through the recordmcount program to create a
separate section that stores all the callers of mcount.

The build process has a special file: scripts/mod/empty.o. This is
built from empty.c which is literally an empty file (except for a
single comment). This file is used to find information about the target
elf format, like endianness and word size.

The problem comes up when we need to build recordmcount. The
build process requires that empty.o is built first. The build rules
for empty.o will try to execute recordmcount on the empty.o file.
We get an error that recordmcount does not exist.

To avoid this recursion, the build file will skip running recordmcount
if the file that it is building is script/mod/empty.o.

[ extra comment Suggested-by: Sam Ravnborg <sam@ravnborg.org> ]

Reported-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Ingo Molnar <mingo@elte.hu>
Cc: Michal Marek <mmarek@suse.cz>
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
 		2010-10-18 17:08:10 -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
Kbuild.include kbuild: generate modules.builtin 2009-12-12 13:08:16 +01:00
Lindent scripts/Lindent: support gnu indent v2.2.10 2008-04-29 08:06:04 -07:00
Makefile ftrace/x86: Add support for C version of recordmcount 2010-10-14 16:52:41 -04:00
Makefile.build ftrace: Remove recursion between recordmcount and scripts/mod/empty 2010-10-18 17:08:10 -04:00
Makefile.clean kbuild: fix some minor typoes 2008-04-25 20:18:48 +02:00
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 kbuild: fix some minor typoes 2008-04-25 20:18:48 +02:00
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
bin2c.c
…
bloat-o-meter fix bloat-o-meter for ppc64 2007-12-17 19:28:17 -08:00
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 scripts: Make cleanfile/cleanpatch warn about long lines 2007-07-16 21:15:50 +02:00
cleanpatch scripts: Make cleanfile/cleanpatch warn about long lines 2007-07-16 21:15:50 +02:00
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.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
kernel-doc docbook: warn on unused doc entries 2010-09-11 16:49:21 -07:00
makelst kbuild: introduce ccflags-y, asflags-y and ldflags-y 2007-10-15 22:25:06 +02:00
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 kbuild/mkuboot.sh: allow spaces in CROSS_COMPILE 2007-05-02 20:58:10 +02:00
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