From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ian Rogers <irogers@google.com>
Cc: "Peter Zijlstra" <peterz@infradead.org>,
"Ingo Molnar" <mingo@redhat.com>,
"Namhyung Kim" <namhyung@kernel.org>,
"Jiri Olsa" <jolsa@kernel.org>,
"Adrian Hunter" <adrian.hunter@intel.com>,
"James Clark" <james.clark@linaro.org>,
"John Garry" <john.g.garry@oracle.com>,
"Will Deacon" <will@kernel.org>, "Leo Yan" <leo.yan@linux.dev>,
"Guo Ren" <guoren@kernel.org>, "Paul Walmsley" <pjw@kernel.org>,
"Palmer Dabbelt" <palmer@dabbelt.com>,
"Albert Ou" <aou@eecs.berkeley.edu>,
"Alexandre Ghiti" <alex@ghiti.fr>,
"Shimin Guo" <shimin.guo@skydio.com>,
"Athira Rajeev" <atrajeev@linux.ibm.com>,
"Stephen Brennan" <stephen.s.brennan@oracle.com>,
"Howard Chu" <howardchu95@gmail.com>,
"Thomas Falcon" <thomas.falcon@intel.com>,
"Andi Kleen" <ak@linux.intel.com>,
"Dr. David Alan Gilbert" <linux@treblig.org>,
"Dmitry Vyukov" <dvyukov@google.com>,
"Krzysztof Łopatowski" <krzysztof.m.lopatowski@gmail.com>,
"Chun-Tse Shao" <ctshao@google.com>,
"Aditya Bodkhe" <aditya.b1@linux.ibm.com>,
"Haibo Xu" <haibo1.xu@intel.com>,
"Sergei Trofimovich" <slyich@gmail.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org,
linux-riscv@lists.infradead.org, "Mark Wielaard" <mark@klomp.org>
Subject: Re: [PATCH v1 08/23] perf perf_regs: Switch from arch string to int e_machine
Date: Tue, 20 Jan 2026 15:49:59 -0300 [thread overview]
Message-ID: <aW_OV72q5rAVrgRE@x1> (raw)
In-Reply-To: <20260117052849.2205545-9-irogers@google.com>
On Fri, Jan 16, 2026 at 09:28:34PM -0800, Ian Rogers wrote:
> The arch string requires multiple strcmp to identify things like the
> IP and SP. Switch to passing in an e_machine that in the bulk of cases
> is computed using a current thread load. The e_machine also allows
> identification of 32-bit vs 64-bit processes.
>
> Signed-off-by: Ian Rogers <irogers@google.com>
> ---
> tools/perf/builtin-script.c | 17 ++-
> tools/perf/util/evsel.c | 14 ++-
> tools/perf/util/perf_regs.c | 105 +++++++++++-------
[ Include dwarf-regs.h to get conditional defines for EM_CSKY and EM_LOONGARCH, not available in old distros ]
- Arnaldo
next prev parent reply other threads:[~2026-01-20 18:50 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-17 5:28 [PATCH v1 00/23] perf dwarf/libdw extra support, speed and clean ups Ian Rogers
2026-01-17 5:28 ` [PATCH v1 01/23] perf symbol-elf: Fix leak of ELF files with GNU debugdata Ian Rogers
2026-01-17 5:28 ` [PATCH v1 02/23] perf dso: Extra validity checks that e_machine is valid Ian Rogers
2026-01-17 5:28 ` [PATCH v1 03/23] perf record: Disable inline frames when marking build IDs Ian Rogers
2026-01-17 5:28 ` [PATCH v1 04/23] perf unwind-libdw: fix a cross-arch unwinding bug Ian Rogers
2026-01-20 16:02 ` Arnaldo Carvalho de Melo
2026-01-20 17:53 ` Ian Rogers
2026-01-17 5:28 ` [PATCH v1 05/23] perf libdw_addr2line: Fixes to srcline memory allocation Ian Rogers
2026-01-17 5:28 ` [PATCH v1 06/23] perf unwind-libdw: Correct argument to dwfl_attach_state Ian Rogers
2026-01-17 5:28 ` [PATCH v1 07/23] perf powerpc: Unify the skip-callchain-idx libdw with that for addr2line Ian Rogers
2026-01-17 5:28 ` [PATCH v1 08/23] perf perf_regs: Switch from arch string to int e_machine Ian Rogers
2026-01-20 18:49 ` Arnaldo Carvalho de Melo [this message]
2026-01-21 6:58 ` Mi, Dapeng
2026-01-21 7:10 ` Ian Rogers
2026-01-17 5:28 ` [PATCH v1 09/23] perf dwarf-regs: Add util/dwarf-regs-arch for consistency with perf-regs Ian Rogers
2026-01-17 5:28 ` [PATCH v1 10/23] perf dwarf-regs: Remove get_arch_regnum Ian Rogers
2026-01-17 5:28 ` [PATCH v1 11/23] perf dwarf-regs: Clean up x86 dwarf_regnum code Ian Rogers
2026-01-17 5:28 ` [PATCH v1 12/23] perf dwarf-regs: Add get_dwarf_regnum_for_perf_regnum and use for x86 unwinding Ian Rogers
2026-01-17 5:42 ` Ian Rogers
2026-01-17 5:28 ` [PATCH v1 13/23] perf dwarf-regs: Add basic get_dwarf_regnum for most architectures Ian Rogers
2026-01-17 5:28 ` [PATCH v1 14/23] perf dwarf-regs: Add ARM perf to dwarf register number mapping functions Ian Rogers
2026-01-17 5:28 ` [PATCH v1 15/23] perf dwarf-regs: Add csky " Ian Rogers
2026-01-17 5:28 ` [PATCH v1 16/23] perf dwarf-regs: Add loongarch " Ian Rogers
2026-01-17 5:28 ` [PATCH v1 17/23] perf dwarf-regs: Add powerpc " Ian Rogers
2026-01-17 5:28 ` [PATCH v1 18/23] perf dwarf-regs: Add RISC-V " Ian Rogers
2026-01-17 5:28 ` [PATCH v1 19/23] perf dwarf-regs: Add S390 " Ian Rogers
2026-01-17 5:28 ` [PATCH v1 20/23] perf dwarf-regs: Add MIPS " Ian Rogers
2026-01-17 5:28 ` [PATCH v1 21/23] perf build: Remove NO_LIBDW_DWARF_UNWIND option Ian Rogers
2026-01-17 5:28 ` [PATCH v1 22/23] perf unwind-libdw: Don't discard loaded ELF/Dwarf after every unwind Ian Rogers
2026-01-27 17:42 ` Serhei Makarov
2026-01-27 18:08 ` Ian Rogers
2026-01-17 5:28 ` [PATCH v1 23/23] perf machine: Add inline information to frame pointer and LBR callchains Ian Rogers
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