kernel/linux.git/tools/perf/Makefile, branch v2.6.38

perf tools: Fix build by checking if extra warnings are supported

2011-01-22T21:29:53+00:00

The -Wstack-protector and -Wvolatile-register-var warnings, for instance, are not supported by gcc 3.4.6. So fix by doing the same check we already do for -fstack-protector-all. With this and the other patches in this series, perf builds unmodified on, for instance, RHEL4. Cc: Eric Dumazet Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Build with frame pointer

2011-01-06T20:04:54+00:00

It seems that some gcc versions build by default with frame pointers and some others omit them. Just build the tools with frame pointers as the callchains can be an important part of the perf workflow. Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Stephane Eranian LKML-Reference: <1294325513-14276-3-git-send-email-fweisbec@gmail.com> Signed-off-by: Frederic Weisbecker Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Introduce event selectors

2011-01-03T18:39:04+00:00

Out of ad-hoc code and global arrays with hard coded sizes. This is the first step on having a library that will be first used on regression tests in the 'perf test' tool. [acme@felicio linux]$ size /tmp/perf.before text data bss dec hex filename 1273776 97384 5104416 6475576 62cf38 /tmp/perf.before [acme@felicio linux]$ size /tmp/perf.new text data bss dec hex filename 1275422 97416 1392416 2765254 2a31c6 /tmp/perf.new Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo

perf makefile: Allow strong and weak functions in LIB_OBJS

2010-12-07T13:58:50+00:00

When we build perf we place all of the .o files from the library files (util, arch/x/util, etc) into libperf.a which is then linked into perf. The problem is that the linker will by default only consider .o files within the .a archive if they are necessary to satisfy an unresolved symbol. As weak functions are not unresolved, it will not consider a .o file from the archive containing the strong versions of weak functions unless it requires it for another reason. This patch adds the --whole-archive flags to the linker when passing in the libperf.a file to ensure that it will consider every .o file in the archive, not just what it believes that it needs. The end result is that weak functions can now be overridden by strong variants of them in the libperf.a file. Cc: "tom.leiming" Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra LKML-Reference: <1290991642-sup-5890@au1.ibm.com> Signed-off-by: Ian Munsie Signed-off-by: Arnaldo Carvalho de Melo

Merge branch 'perf/rename' into perf/core

2010-12-01T08:22:19+00:00

Merge reason: This is an older commit under testing that was not pushed yet - merge it. Also fix up the merge in command-list.txt. Signed-off-by: Ingo Molnar Acked-by: Tom Zanussi

perf bench: Add feature that measures the performance of the arch/x86/lib/memcpy_64.S memcpy routines via 'perf bench mem'

2010-11-26T07:15:57+00:00

This patch ports arch/x86/lib/memcpy_64.S to perf bench mem memcpy for benchmarking memcpy() in userland with tricky and dirty way. util/include/asm/cpufeature.h, util/include/asm/dwarf2.h, and util/include/linux/linkage.h are mostly dummy files with small wrappers, so that we are able to include memcpy_64.S unmodified. Signed-off-by: Hitoshi Mitake Cc: h.mitake@gmail.com Cc: Miao Xie Cc: Ma Ling Cc: Zhao Yakui Cc: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Paul Mackerras Cc: Frederic Weisbecker Cc: Steven Rostedt Cc: Andi Kleen LKML-Reference: <1290668693-27068-2-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar

perf tools: Remove hardcoded include paths for elfutils

2010-11-19T18:38:04+00:00

This change removes the use of hardcoded absolute "/usr/include/elfutils" paths from the perf build. The problem with hardcoded paths is that it prevents them from being overridden by $prefix or by -I in CFLAGS (e.g., for cross-compiling purposes). Instead, just include the "elfutils/" subdirectory as a relative path when files are needed from that directory. Tested by building perf: - Cross-compiled for ARM on x86_64 - Built natively on x86_64 - Built on x86_64 with /usr/include/elfutils moved to another location and manually included in CFLAGS Acked-by: Masami Hiramatsu Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Ingo Molnar Cc: Masami Hiramatsu LKML-Reference: <1289945793-31441-1-git-send-email-rmorell@nvidia.com> Signed-off-by: Robert Morell Signed-off-by: Arnaldo Carvalho de Melo

perf: Rename 'perf trace' to 'perf script'

2010-11-16T18:37:44+00:00

Free the perf trace name space and rename the trace to 'script' which is a better match for the scripting engine. Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner

Merge branch 'perf/urgent' into perf/core

2010-10-05T07:47:14+00:00

Conflicts: tools/perf/util/ui/browsers/hists.c Merge reason: fix the conflict and merge in changes for dependent patch. Signed-off-by: Ingo Molnar

perf tools: Fix build breakage

2010-10-04T14:58:25+00:00

The patch ecafda6 introduced a problem where all object files would be always rebuilt, fix it by using: http://www.gnu.org/software/make/manual/html_node/Prerequisite-Types.html Reported-by: Arnaldo Carvalho de Melo Cc: Bernd Petrovitsch Signed-off-by: Kusanagi Kouichi Signed-off-by: Arnaldo Carvalho de Melo