From: Jean Pihet <jean.pihet@linaro.org> To: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "linaro-kernel@lists.linaro.org" <linaro-kernel@lists.linaro.org>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, Arnaldo <acme@ghostprotocols.net>, Ingo Molnar <mingo@kernel.org>, Jiri Olsa <jolsa@redhat.com>, Steve Capper <steve.capper@linaro.org>, Mark Rutland <mark.rutland@arm.com> Cc: patches@linaro.org, Jean Pihet <jean.pihet@linaro.org>, Corey Ashford <cjashfor@linux.vnet.ibm.com>, Frederic Weisbecker <fweisbec@gmail.com>, Namhyung Kim <namhyung@kernel.org>, Paul Mackerras <paulus@samba.org>, Peter Zijlstra <a.p.zijlstra@chello.nl>, David Ahern <dsahern@gmail.com> Subject: [PATCH 3/3] perf tools: Add libdw DWARF post unwind support for ARM64 Date: Wed, 19 Mar 2014 10:42:35 +0100 [thread overview] Message-ID: <1395222155-22205-4-git-send-email-jean.pihet@linaro.org> (raw) In-Reply-To: <1395222155-22205-1-git-send-email-jean.pihet@linaro.org> Adding libdw DWARF post unwind support, which is part of elfutils-devel/libdw-dev package from version 0.158. Note: the libdw code needs some support for dwarf unwinding on ARM64, this code is submitted seperately on the elfutils ML. 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> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.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> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: David Ahern <dsahern@gmail.com> --- tools/perf/arch/arm64/Makefile | 5 +++ tools/perf/arch/arm64/util/unwind-libdw.c | 53 +++++++++++++++++++++++++++++++ 2 files changed, 58 insertions(+) create mode 100644 tools/perf/arch/arm64/util/unwind-libdw.c diff --git a/tools/perf/arch/arm64/Makefile b/tools/perf/arch/arm64/Makefile index 221f21d..09d6215 100644 --- a/tools/perf/arch/arm64/Makefile +++ b/tools/perf/arch/arm64/Makefile @@ -4,6 +4,11 @@ LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o endif ifndef NO_LIBUNWIND LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/unwind-libunwind.o +endif +ifndef NO_LIBDW_DWARF_UNWIND +LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/unwind-libdw.o +endif +ifndef NO_DWARF_UNWIND LIB_OBJS += $(OUTPUT)arch/$(ARCH)/tests/regs_load.o LIB_OBJS += $(OUTPUT)arch/$(ARCH)/tests/dwarf-unwind.o endif diff --git a/tools/perf/arch/arm64/util/unwind-libdw.c b/tools/perf/arch/arm64/util/unwind-libdw.c new file mode 100644 index 0000000..8d24958 --- /dev/null +++ b/tools/perf/arch/arm64/util/unwind-libdw.c @@ -0,0 +1,53 @@ +#include <elfutils/libdwfl.h> +#include "../../util/unwind-libdw.h" +#include "../../util/perf_regs.h" + +bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg) +{ + struct unwind_info *ui = arg; + struct regs_dump *user_regs = &ui->sample->user_regs; + Dwarf_Word dwarf_regs[PERF_REG_ARM64_MAX]; + +#define REG(r) ({ \ + Dwarf_Word val = 0; \ + perf_reg_value(&val, user_regs, PERF_REG_ARM64_##r); \ + val; \ +}) + + dwarf_regs[0] = REG(X0); + dwarf_regs[1] = REG(X1); + dwarf_regs[2] = REG(X2); + dwarf_regs[3] = REG(X3); + dwarf_regs[4] = REG(X4); + dwarf_regs[5] = REG(X5); + dwarf_regs[6] = REG(X6); + dwarf_regs[7] = REG(X7); + dwarf_regs[8] = REG(X8); + dwarf_regs[9] = REG(X9); + dwarf_regs[10] = REG(X10); + dwarf_regs[11] = REG(X11); + dwarf_regs[12] = REG(X12); + dwarf_regs[13] = REG(X13); + dwarf_regs[14] = REG(X14); + dwarf_regs[15] = REG(X15); + dwarf_regs[16] = REG(X16); + dwarf_regs[17] = REG(X17); + dwarf_regs[18] = REG(X18); + dwarf_regs[19] = REG(X19); + dwarf_regs[20] = REG(X20); + dwarf_regs[21] = REG(X21); + dwarf_regs[22] = REG(X22); + dwarf_regs[23] = REG(X23); + dwarf_regs[24] = REG(X24); + dwarf_regs[25] = REG(X25); + dwarf_regs[26] = REG(X26); + dwarf_regs[27] = REG(X27); + dwarf_regs[28] = REG(X28); + dwarf_regs[29] = REG(X29); + dwarf_regs[30] = REG(LR); + dwarf_regs[31] = REG(SP); + dwarf_regs[32] = REG(PC); + + return dwfl_thread_state_registers(thread, 0, PERF_REG_ARM64_MAX, + dwarf_regs); +} -- 1.7.11.7
WARNING: multiple messages have this Message-ID (diff)
From: jean.pihet@linaro.org (Jean Pihet) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 3/3] perf tools: Add libdw DWARF post unwind support for ARM64 Date: Wed, 19 Mar 2014 10:42:35 +0100 [thread overview] Message-ID: <1395222155-22205-4-git-send-email-jean.pihet@linaro.org> (raw) In-Reply-To: <1395222155-22205-1-git-send-email-jean.pihet@linaro.org> Adding libdw DWARF post unwind support, which is part of elfutils-devel/libdw-dev package from version 0.158. Note: the libdw code needs some support for dwarf unwinding on ARM64, this code is submitted seperately on the elfutils ML. 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> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.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> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: David Ahern <dsahern@gmail.com> --- tools/perf/arch/arm64/Makefile | 5 +++ tools/perf/arch/arm64/util/unwind-libdw.c | 53 +++++++++++++++++++++++++++++++ 2 files changed, 58 insertions(+) create mode 100644 tools/perf/arch/arm64/util/unwind-libdw.c diff --git a/tools/perf/arch/arm64/Makefile b/tools/perf/arch/arm64/Makefile index 221f21d..09d6215 100644 --- a/tools/perf/arch/arm64/Makefile +++ b/tools/perf/arch/arm64/Makefile @@ -4,6 +4,11 @@ LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o endif ifndef NO_LIBUNWIND LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/unwind-libunwind.o +endif +ifndef NO_LIBDW_DWARF_UNWIND +LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/unwind-libdw.o +endif +ifndef NO_DWARF_UNWIND LIB_OBJS += $(OUTPUT)arch/$(ARCH)/tests/regs_load.o LIB_OBJS += $(OUTPUT)arch/$(ARCH)/tests/dwarf-unwind.o endif diff --git a/tools/perf/arch/arm64/util/unwind-libdw.c b/tools/perf/arch/arm64/util/unwind-libdw.c new file mode 100644 index 0000000..8d24958 --- /dev/null +++ b/tools/perf/arch/arm64/util/unwind-libdw.c @@ -0,0 +1,53 @@ +#include <elfutils/libdwfl.h> +#include "../../util/unwind-libdw.h" +#include "../../util/perf_regs.h" + +bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg) +{ + struct unwind_info *ui = arg; + struct regs_dump *user_regs = &ui->sample->user_regs; + Dwarf_Word dwarf_regs[PERF_REG_ARM64_MAX]; + +#define REG(r) ({ \ + Dwarf_Word val = 0; \ + perf_reg_value(&val, user_regs, PERF_REG_ARM64_##r); \ + val; \ +}) + + dwarf_regs[0] = REG(X0); + dwarf_regs[1] = REG(X1); + dwarf_regs[2] = REG(X2); + dwarf_regs[3] = REG(X3); + dwarf_regs[4] = REG(X4); + dwarf_regs[5] = REG(X5); + dwarf_regs[6] = REG(X6); + dwarf_regs[7] = REG(X7); + dwarf_regs[8] = REG(X8); + dwarf_regs[9] = REG(X9); + dwarf_regs[10] = REG(X10); + dwarf_regs[11] = REG(X11); + dwarf_regs[12] = REG(X12); + dwarf_regs[13] = REG(X13); + dwarf_regs[14] = REG(X14); + dwarf_regs[15] = REG(X15); + dwarf_regs[16] = REG(X16); + dwarf_regs[17] = REG(X17); + dwarf_regs[18] = REG(X18); + dwarf_regs[19] = REG(X19); + dwarf_regs[20] = REG(X20); + dwarf_regs[21] = REG(X21); + dwarf_regs[22] = REG(X22); + dwarf_regs[23] = REG(X23); + dwarf_regs[24] = REG(X24); + dwarf_regs[25] = REG(X25); + dwarf_regs[26] = REG(X26); + dwarf_regs[27] = REG(X27); + dwarf_regs[28] = REG(X28); + dwarf_regs[29] = REG(X29); + dwarf_regs[30] = REG(LR); + dwarf_regs[31] = REG(SP); + dwarf_regs[32] = REG(PC); + + return dwfl_thread_state_registers(thread, 0, PERF_REG_ARM64_MAX, + dwarf_regs); +} -- 1.7.11.7
next prev parent reply other threads:[~2014-03-19 9:43 UTC|newest] Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-03-19 9:42 [PATCH 0/3] perf tools: Add libdw DWARF post unwind support for ARM64 Jean Pihet 2014-03-19 9:42 ` Jean Pihet 2014-03-19 9:42 ` [PATCH 1/3] perf tests: Introduce perf_regs_load function on ARM64 Jean Pihet 2014-03-19 9:42 ` Jean Pihet 2014-03-21 15:11 ` Mark Rutland 2014-03-21 15:11 ` Mark Rutland 2014-03-25 15:23 ` Jean Pihet 2014-03-25 15:23 ` Jean Pihet 2014-04-04 7:51 ` Jean Pihet 2014-04-04 7:51 ` Jean Pihet 2014-04-22 8:13 ` Jean Pihet 2014-04-22 8:13 ` Jean Pihet 2014-04-22 10:37 ` Will Deacon 2014-04-22 10:37 ` Will Deacon 2014-04-22 13:24 ` Mark Rutland 2014-04-22 13:24 ` Mark Rutland 2014-04-22 13:42 ` Mark Rutland 2014-04-22 13:42 ` Mark Rutland 2014-04-28 13:10 ` Jean Pihet 2014-04-28 13:10 ` Jean Pihet 2014-04-28 13:12 ` Jean Pihet 2014-04-28 13:12 ` Jean Pihet 2014-05-02 9:19 ` Jean Pihet 2014-05-02 9:19 ` Jean Pihet 2014-05-02 16:51 ` Will Deacon 2014-05-02 16:51 ` Will Deacon 2014-05-05 7:07 ` Jean Pihet 2014-05-05 7:07 ` Jean Pihet 2014-05-06 8:51 ` Will Deacon 2014-05-06 8:51 ` Will Deacon 2014-03-19 9:42 ` [PATCH 2/3] perf tests: Add dwarf unwind test " Jean Pihet 2014-03-19 9:42 ` Jean Pihet 2014-03-19 9:42 ` Jean Pihet [this message] 2014-03-19 9:42 ` [PATCH 3/3] perf tools: Add libdw DWARF post unwind support for ARM64 Jean Pihet 2014-05-06 15:55 [PATCH 0/3] " Jean Pihet 2014-05-06 15:55 ` [PATCH 3/3] " Jean Pihet 2014-05-06 15:55 ` Jean Pihet 2014-05-06 17:00 ` Will Deacon 2014-05-06 17:00 ` Will Deacon 2014-05-06 17:41 ` Jean Pihet 2014-05-06 17:41 ` Jean Pihet 2014-05-06 17:52 ` Will Deacon 2014-05-06 17:52 ` Will Deacon 2014-05-07 7:40 ` Jean Pihet 2014-05-07 7:40 ` Jean Pihet
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