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2024-11-09perf mips: Remove dwarf-regs.cIan Rogers
The file just provides the function get_arch_regstr, however, if in the only caller get_dwarf_regstr EM_HOST is used for the EM_NONE case the function can never be called. So remove as dead code. Tidy up the EM_NONE cases for mips in dwarf-regs.c. Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Anup Patel <anup@brainfault.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: David S. Miller <davem@davemloft.net> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Shenlin Liang <liangshenlin@eswincomputing.com> Cc: Nick Terrell <terrelln@fb.com> Cc: Guilherme Amadio <amadio@gentoo.org> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Changbin Du <changbin.du@huawei.com> Cc: Alexander Lobakin <aleksander.lobakin@intel.com> Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Guo Ren <guoren@kernel.org> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: James Clark <james.clark@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Chen Pei <cp0613@linux.alibaba.com> Cc: Leo Yan <leo.yan@linux.dev> Cc: Oliver Upton <oliver.upton@linux.dev> Cc: Aditya Gupta <adityag@linux.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-riscv@lists.infradead.org Cc: Bibo Mao <maobibo@loongson.cn> Cc: John Garry <john.g.garry@oracle.com> Cc: Atish Patra <atishp@rivosinc.com> Cc: Dima Kogan <dima@secretsauce.net> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: linux-csky@vger.kernel.org Link: https://lore.kernel.org/r/20241108234606.429459-13-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2024-10-18perf build: Rename CONFIG_DWARF to CONFIG_LIBDWIan Rogers
In Makefile.config for unwinding the name dwarf implies either libunwind or libdw. Make it clearer that CONFIG_DWARF is really just defined when libdw is present by renaming to CONFIG_LIBDW. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Leo Yan <leo.yan@arm.com> Cc: Anup Patel <anup@brainfault.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: David S. Miller <davem@davemloft.net> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Shenlin Liang <liangshenlin@eswincomputing.com> Cc: Nick Terrell <terrelln@fb.com> Cc: Guilherme Amadio <amadio@gentoo.org> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Changbin Du <changbin.du@huawei.com> Cc: Alexander Lobakin <aleksander.lobakin@intel.com> Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Guo Ren <guoren@kernel.org> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: James Clark <james.clark@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Chen Pei <cp0613@linux.alibaba.com> Cc: Leo Yan <leo.yan@linux.dev> Cc: Oliver Upton <oliver.upton@linux.dev> Cc: Aditya Gupta <adityag@linux.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-riscv@lists.infradead.org Cc: Bibo Mao <maobibo@loongson.cn> Cc: John Garry <john.g.garry@oracle.com> Cc: Atish Patra <atishp@rivosinc.com> Cc: Dima Kogan <dima@secretsauce.net> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: linux-csky@vger.kernel.org Link: https://lore.kernel.org/r/20241017001354.56973-12-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2024-06-26perf util: Make util its own libraryIan Rogers
Make the util directory into its own library. This is done to avoid compiling code twice, once for the perf tool and once for the perf python module. For convenience: arch/common.c scripts/perl/Perf-Trace-Util/Context.c scripts/python/Perf-Trace-Util/Context.c are made part of this library. Signed-off-by: Ian Rogers <irogers@google.com> Reviewed-by: James Clark <james.clark@arm.com> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Kees Cook <keescook@chromium.org> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Nick Terrell <terrelln@fb.com> Cc: Gary Guo <gary@garyguo.net> Cc: Alex Gaynor <alex.gaynor@gmail.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Wedson Almeida Filho <wedsonaf@gmail.com> Cc: Ze Gao <zegao2021@gmail.com> Cc: Alice Ryhl <aliceryhl@google.com> Cc: Andrei Vagin <avagin@google.com> Cc: Yicong Yang <yangyicong@hisilicon.com> Cc: Jonathan Cameron <jonathan.cameron@huawei.com> Cc: Guo Ren <guoren@kernel.org> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Leo Yan <leo.yan@linux.dev> Cc: Oliver Upton <oliver.upton@linux.dev> Cc: John Garry <john.g.garry@oracle.com> Cc: Benno Lossin <benno.lossin@proton.me> Cc: Björn Roy Baron <bjorn3_gh@protonmail.com> Cc: Andreas Hindborg <a.hindborg@samsung.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20240625214117.953777-7-irogers@google.com
2021-03-01perf tools: Support MIPS unwinding and dwarf-regsTiezhu Yang
Map perf APIs (perf_reg_name/get_arch_regstr/unwind__arch_reg_id) with MIPS specific registers. [ayan@wavecomp.com: repick this patch for unwinding userstack backtrace by perf and libunwind on MIPS based CPU.] [yangtiezhu@loongson.cn: Add sample_reg_masks[] to fix build error, silence some checkpatch errors and warnings, and also separate the original patches into two parts (MIPS kernel and perf tools) to merge easily.] The original patches: https://lore.kernel.org/patchwork/patch/1126521/ https://lore.kernel.org/patchwork/patch/1126520/ Committer notes: Do it as __perf_reg_name() to cope with: 067012974c8ae31a ("perf tools: Fix arm64 build error with gcc-11") Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Archer Yan <ayan@wavecomp.com> Cc: David Daney <david.daney@cavium.com> Cc: Jianlin Lv <Jianlin.Lv@arm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Juxin Gao <gaojuxin@loongson.cn> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Xuefeng Li <lixuefeng@loongson.cn> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: linux-mips@vger.kernel.org Link: http://lore.kernel.org/lkml/1612409724-3516-3-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Archer Yan <ayan@wavecomp.com> Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>