user/sven/linux.git/scripts/Makefile.build, branch v2.6.31.2

kbuild: introduce subdir-ccflags-y

2009-04-19T09:12:12Z

Following patch introduce support for setting options to gcc that has effect for current directory and all subdirectories. The typical use case are an architecture or a subsystem that decide to cover all files with -Werror. Today alpha, mips and sparc uses -Werror in almost all their Makefile- with subdir-ccflag-y it is now simpler to do so as only the top-level directories needs to be covered. Likewise if we decide to cover a full subsystem such as net/ with -Werror this is done by adding a single line to net/Makefile. Signed-off-by: Sam Ravnborg Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: Thomas Gleixner

Merge branches 'tracing/ftrace', 'tracing/kmemtrace' and 'linus' into tracing/core

2009-02-03T05:25:38Z

Revert "kbuild: strip generated symbols from *.ko"

2009-01-14T20:38:20Z

This reverts commit ad7a953c522ceb496611d127e51e278bfe0ff483. And commit: ("allow stripping of generated symbols under CONFIG_KALLSYMS_ALL") 9bb482476c6c9d1ae033306440c51ceac93ea80c These stripping patches has caused a set of issues: 1) People have reported compatibility issues with binutils due to lack of support for `--strip-unneeded-symbols' with objcopy 2.15.92.0.2 Reported by: Wenji 2) ccache and distcc no longer works as expeced Reported by: Ted, Roland, + others 3) The installed modules increased a lot in size Reported by: Ted, Davej + others Reported-by: Wenji Huang Reported-by: "Theodore Ts'o" Reported-by: Dave Jones Reported-by: Roland McGrath Signed-off-by: Sam Ravnborg

ftrace, ia64: make recordmcount distinct module compile

2009-01-14T11:11:08Z

In IA64, module build and kernel build use different option. Make recordmcount.pl differentiate the two cases. Signed-off-by: Shaohua Li Acked-by: Sam Ravnborg Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar

Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next

2008-12-28T23:13:48Z

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (25 commits) allow stripping of generated symbols under CONFIG_KALLSYMS_ALL kbuild: strip generated symbols from *.ko kbuild: simplify use of genksyms kernel-doc: check for extra kernel-doc notations kbuild: add headerdep used to detect inclusion cycles in header files kbuild: fix string equality testing in tags.sh kbuild: fix make tags/cscope kbuild: fix make incompatibility kbuild: remove TAR_IGNORE setlocalversion: add git-svn support setlocalversion: print correct subversion revision scripts: improve the decodecode script scripts/package: allow custom options to rpm genksyms: allow to ignore symbol checksum changes genksyms: track symbol checksum changes tags and cscope support really belongs in a shell script kconfig: fix options to check-lxdialog.sh kbuild: gen_init_cpio expands shell variables in file names remove bashisms from scripts/extract-ikconfig kbuild: teach mkmakfile to be silent ...

kbuild: strip generated symbols from *.ko

2008-12-19T21:41:15Z

This patch changes the way __crc_ symbols are being resolved from using ld to do so to using the assembler, thus allowing these symbols to be marked local (the linker creates then as global ones) and hence allow stripping (for modules) or ignoring (for vmlinux) them. While at this, also strip other generated symbols during module installation. One potentially debatable point is the handling of the flags passeed to gcc when translating the intermediate assembly file into an object: passing $(c_flags) unchanged doesn't work as gcc passes --gdwarf2 to gas whenever is sees any -g* option, even for -g0, and despite the fact that the compiler would have already produced all necessary debug info in the C->assembly translation phase. I took the approach of just filtering out all -g* options, but an alternative to such negative filtering might be to have a positive filter which might, in the ideal case allow just all the -Wa,* options to pass through. Signed-off-by: Jan Beulich Signed-off-by: Sam Ravnborg

kbuild: simplify use of genksyms

2008-12-19T21:00:58Z

Avoid duplicating long list of options in two places Signed-off-by: Sam Ravnborg

genksyms: track symbol checksum changes

2008-12-03T21:33:11Z

Sometimes it is preferable to avoid changes of exported symbol checksums (to avoid breaking externally provided modules). When a checksum change occurs, it can be hard to figure out what caused this change: underlying types may have changed, or additional type information may simply have become available at the point where a symbol is exported. Add a new --reference option to genksyms which allows it to report why checksums change, based on the type information dumps it creates with the --dump-types flag. Genksyms will read in such a dump from a previous run, and report which symbols have changed (and why). The behavior can be controlled for an entire build as follows: If KBUILD_SYMTYPES is set, genksyms uses --dump-types to produce *.symtypes dump files. If any *.symref files exist, those will be used as the reference to check against. If KBUILD_PRESERVE is set, checksum changes will fail the build. Signed-off-by: Andreas Gruenbacher Cc: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg

ftrace, kbuild: condense recordmcount.pl parameter code

2008-10-30T23:38:34Z

Impact: cleanup Sam Ravnborg pointed out that I could condense the code for the parameters of recordmcount.pl by using an $(if ...) condition. Signed-off-by: Steven Rostedt Acked-by: Sam Ravnborg Signed-off-by: Ingo Molnar

ftrace: handle generic arch calls

2008-10-23T13:58:19Z

The recordmcount script requires that the actual arch is passed in. This works well when ARCH=i386 or ARCH=x86_64 but does not handle the case of ARCH=x86. This patch adds a parameter to the function to pass in the number of bits of the architecture. So that it can determine if x86 should be run for x86_64 or i386 archs. Signed-off-by: Steven Rostedt Signed-off-by: Ingo Molnar