Now the generic code can handle kallsyms fixup properly so no need to keep the arch-functions anymore.

Signed-off-by: Namhyung Kim namhyung@kernel.org Acked-by: Ian Rogers irogers@google.com Cc: Heiko Carstens hca@linux.ibm.com Cc: Ingo Molnar mingo@kernel.org Cc: Jiri Olsa jolsa@kernel.org Cc: John Garry john.garry@huawei.com Cc: Leo Yan leo.yan@linaro.org Cc: Mark Rutland mark.rutland@arm.com Cc: Masami Hiramatsu mhiramat@kernel.org Cc: Mathieu Poirier mathieu.poirier@linaro.org Cc: Michael Ellerman mpe@ellerman.id.au Cc: Michael Petlan mpetlan@redhat.com Cc: Peter Zijlstra peterz@infradead.org Cc: Song Liu songliubraving@fb.com Cc: Will Deacon will@kernel.org Cc: linux-s390@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Link: https://lore.kernel.org/r/20220416004048.1514900-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com --- The original commit id is a5d20d42a2f2dc2b2f9e9361912062732414090d tools/perf/arch/arm64/util/Build | 1 - tools/perf/arch/arm64/util/machine.c | 27 --------------------------- tools/perf/arch/s390/util/machine.c | 16 ---------------- tools/perf/util/symbol.c | 5 ----- tools/perf/util/symbol.h | 1 - 5 files changed, 50 deletions(-) delete mode 100644 tools/perf/arch/arm64/util/machine.c

diff --git a/tools/perf/arch/arm64/util/Build b/tools/perf/arch/arm64/util/Build index b53294d74b01..eddaf9bf5729 100644 --- a/tools/perf/arch/arm64/util/Build +++ b/tools/perf/arch/arm64/util/Build @@ -1,5 +1,4 @@ perf-y += header.o -perf-y += machine.o perf-y += perf_regs.o perf-y += tsc.o perf-$(CONFIG_DWARF) += dwarf-regs.o diff --git a/tools/perf/arch/arm64/util/machine.c b/tools/perf/arch/arm64/util/machine.c deleted file mode 100644 index d41b27e781d3..000000000000 --- a/tools/perf/arch/arm64/util/machine.c +++ /dev/null @@ -1,27 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 - -#include <stdio.h> -#include <string.h> -#include "debug.h" -#include "symbol.h" - -/* On arm64, kernel text segment start at high memory address, - * for example 0xffff 0000 8xxx xxxx. Modules start at a low memory - * address, like 0xffff 0000 00ax xxxx. When only samll amount of - * memory is used by modules, gap between end of module's text segment - * and start of kernel text segment may be reach 2G. - * Therefore do not fill this gap and do not assign it to the kernel dso map. - */ - -#define SYMBOL_LIMIT (1 << 12) /* 4K */ - -void arch__symbols__fixup_end(struct symbol *p, struct symbol *c) -{ - if ((strchr(p->name, '[') && strchr(c->name, '[') == NULL) || - (strchr(p->name, '[') == NULL && strchr(c->name, '['))) - /* Limit range of last symbol in module and kernel */ - p->end += SYMBOL_LIMIT; - else - p->end = c->start; - pr_debug4("%s sym:%s end:%#lx\n", __func__, p->name, p->end); -} diff --git a/tools/perf/arch/s390/util/machine.c b/tools/perf/arch/s390/util/machine.c index 724efb2d842d..7219ecdb8423 100644 --- a/tools/perf/arch/s390/util/machine.c +++ b/tools/perf/arch/s390/util/machine.c @@ -34,19 +34,3 @@ int arch__fix_module_text_start(u64 *start, u64 *size, const char *name)

return 0; } - -/* On s390 kernel text segment start is located at very low memory addresses, - * for example 0x10000. Modules are located at very high memory addresses, - * for example 0x3ff xxxx xxxx. The gap between end of kernel text segment - * and beginning of first module's text segment is very big. - * Therefore do not fill this gap and do not assign it to the kernel dso map. - */ -void arch__symbols__fixup_end(struct symbol *p, struct symbol *c) -{ - if (strchr(p->name, '[') == NULL && strchr(c->name, '[')) - /* Last kernel symbol mapped to end of page */ - p->end = roundup(p->end, page_size); - else - p->end = c->start; - pr_debug4("%s sym:%s end:%#lx\n", __func__, p->name, p->end); -} diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 8f63cf8d0669..33954835c823 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -101,11 +101,6 @@ static int prefix_underscores_count(const char *str) return tail - str; }

-void __weak arch__symbols__fixup_end(struct symbol *p, struct symbol *c) -{ - p->end = c->start; -} - const char * __weak arch__normalize_symbol_name(const char *name) { return name; diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 66d5b732bb7a..28721d761d91 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -230,7 +230,6 @@ const char *arch__normalize_symbol_name(const char *name); #define SYMBOL_A 0 #define SYMBOL_B 1

-void arch__symbols__fixup_end(struct symbol *p, struct symbol *c); int arch__compare_symbol_names(const char *namea, const char *nameb); int arch__compare_symbol_names_n(const char *namea, const char *nameb, unsigned int n);