[PATCH v1 10/23] perf dwarf-regs: Remove get_arch_regnum
From: Ian Rogers <irogers@google.com>
Date: 2026-01-17 05:29:38
Also in:
linux-perf-users, linux-riscv, lkml
Subsystem:
performance events subsystem, the rest · Maintainers:
Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Namhyung Kim, Linus Torvalds
Except in dwarf-regs the function is never called. The weak function has no strong arch implementations. Remove so that the fall-through case applies. Signed-off-by: Ian Rogers <irogers@google.com> --- tools/perf/util/dwarf-regs.c | 12 ------------ tools/perf/util/include/dwarf-regs.h | 4 ---- 2 files changed, 16 deletions(-)
diff --git a/tools/perf/util/dwarf-regs.c b/tools/perf/util/dwarf-regs.c
index 28a1cfdf26d4..b2f37299147e 100644
--- a/tools/perf/util/dwarf-regs.c
+++ b/tools/perf/util/dwarf-regs.c@@ -71,13 +71,6 @@ const char *get_dwarf_regstr(unsigned int n, unsigned int machine, unsigned int return NULL; } -#if EM_HOST != EM_X86_64 && EM_HOST != EM_386 -__weak int get_arch_regnum(const char *name __maybe_unused) -{ - return -ENOTSUP; -} -#endif - /* Return DWARF register number from architecture register name */ int get_dwarf_regnum(const char *name, unsigned int machine, unsigned int flags __maybe_unused) {
@@ -98,11 +91,6 @@ int get_dwarf_regnum(const char *name, unsigned int machine, unsigned int flags machine = EM_HOST; } switch (machine) { -#if EM_HOST != EM_X86_64 && EM_HOST != EM_386 - case EM_HOST: - reg = get_arch_regnum(regname); - break; -#endif case EM_X86_64: fallthrough; case EM_386:
diff --git a/tools/perf/util/include/dwarf-regs.h b/tools/perf/util/include/dwarf-regs.h
index 6f1b9f6b2466..015d1ade645f 100644
--- a/tools/perf/util/include/dwarf-regs.h
+++ b/tools/perf/util/include/dwarf-regs.h@@ -101,10 +101,6 @@ const char *get_dwarf_regstr(unsigned int n, unsigned int machine, unsigned int int get_x86_regnum(const char *name); -#if !defined(__x86_64__) && !defined(__i386__) -int get_arch_regnum(const char *name); -#endif - /* * get_dwarf_regnum - Returns DWARF regnum from register name * name: architecture register name
--
2.52.0.457.g6b5491de43-goog