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* perf build: Add arch arm objects buildingJiri Olsa2015-02-12
| | | | | | | | | | | | | | | | | | | | Move the arm arch objects building under build framework to be included in the libperf build object. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Tested-by: Will Deacon <will.deacon@arm.com> Cc: Alexis Berlemont <alexis.berlemont@gmail.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-7bxhmeh4bjabqsmxu4gl6p0b@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add libdw DWARF post unwind support for ARMJean Pihet2014-05-16
| | | | | | | | | | | | | | | | | | | | | Adding libdw DWARF post unwind support, which is part of elfutils-devel/libdw-dev package from version 0.158. The new code is contained in unwin-libdw.c object, and implements unwind__get_entries unwind interface function. Signed-off-by: Jean Pihet <jean.pihet@linaro.org> Reviewed-by: Will Deacon <will.deacon@arm.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1400229672-16104-4-git-send-email-jean.pihet@linaro.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* perf tests: Add dwarf unwind test on ARMJean Pihet2014-05-16
| | | | | | | | | | | | | | | | | | | | | | | | Adding dwarf unwind test, that setups live machine data over the perf test thread and does the remote unwind. Need to use -fno-optimize-sibling-calls for test compilation, otherwise 'krava_*' function calls are optimized into jumps and omitted from the stack unwind. So far it was enabled only for x86. Signed-off-by: Jean Pihet <jean.pihet@linaro.org> Reviewed-by: Will Deacon <will.deacon@arm.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1400229672-16104-3-git-send-email-jean.pihet@linaro.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* perf tests: Introduce perf_regs_load function on ARMJean Pihet2014-05-16
| | | | | | | | | | | | | | | | | | | | | Introducing perf_regs_load function, which is going to be used for dwarf unwind test in following patches. It takes single argument as a pointer to the regs dump buffer and populates it with current registers values. Signed-off-by: Jean Pihet <jean.pihet@linaro.org> Reviewed-by: Will Deacon <will.deacon@arm.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1400229672-16104-2-git-send-email-jean.pihet@linaro.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>
* perf callchain: Separate libunwind code to special objectJiri Olsa2014-02-18
| | | | | | | | | | | | | | | | | | | | We are going to add libdw library support to do dwarf post unwind. Making the code ready by moving libunwind dwarf post unwind stuff into separate object. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Acked-by: Jean Pihet <jean.pihet@linaro.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jean Pihet <jean.pihet@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1389098853-14466-10-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* ARM: perf: wire up perf_regs and unwind support for ARMWill Deacon2013-09-30
| | | | | | | This patch hooks in the perf_regs and libunwind code for ARM. Cc: Jean Pihet <jean.pihet@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
* ARM: 6198/1: perf probe: Add ARM DWARF register number mappingsWill Deacon2010-07-09
This patch adds mappings from DWARF register numbers to the register names used by the ARM `Regs and Stack Access API'. Cc: Jean Pihet <jpihet@mvista.com> Tested-by: Jamie Iles <jamie.iles@picochip.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>