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authorNamhyung Kim <namhyung@kernel.org>2022-04-15 17:40:48 -0700
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-04-28 10:51:40 -0300
commita5d20d42a2f2dc2b2f9e9361912062732414090d (patch)
tree9ddf83004ada9105abff6889da4975ca976b6fd8 /tools
parent8799ebce84d672aae1dc3170510f6a3e66f96b11 (diff)
downloadlinux-a5d20d42a2f2dc2b2f9e9361912062732414090d.tar.bz2
perf symbol: Remove arch__symbols__fixup_end()
Now the generic code can handle kallsyms fixup properly so no need to keep the arch-functions anymore. Fixes: 3cf6a32f3f2a4594 ("perf symbols: Fix symbol size calculation condition") 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>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/arch/arm64/util/machine.c21
-rw-r--r--tools/perf/arch/powerpc/util/Build1
-rw-r--r--tools/perf/arch/powerpc/util/machine.c25
-rw-r--r--tools/perf/arch/s390/util/machine.c16
-rw-r--r--tools/perf/util/symbol.c5
-rw-r--r--tools/perf/util/symbol.h1
6 files changed, 0 insertions, 69 deletions
diff --git a/tools/perf/arch/arm64/util/machine.c b/tools/perf/arch/arm64/util/machine.c
index d2ce31e28cd7..41c1596e5207 100644
--- a/tools/perf/arch/arm64/util/machine.c
+++ b/tools/perf/arch/arm64/util/machine.c
@@ -8,27 +8,6 @@
#include "callchain.h"
#include "record.h"
-/* On arm64, kernel text segment starts at high memory address,
- * for example 0xffff 0000 8xxx xxxx. Modules start at a low memory
- * address, like 0xffff 0000 00ax xxxx. When only small amount of
- * memory is used by modules, gap between end of module's text segment
- * and start of kernel text segment may 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:%#" PRIx64 "\n", __func__, p->name, p->end);
-}
-
void arch__add_leaf_frame_record_opts(struct record_opts *opts)
{
opts->sample_user_regs |= sample_reg_masks[PERF_REG_ARM64_LR].mask;
diff --git a/tools/perf/arch/powerpc/util/Build b/tools/perf/arch/powerpc/util/Build
index 8a79c4126e5b..0115f3166568 100644
--- a/tools/perf/arch/powerpc/util/Build
+++ b/tools/perf/arch/powerpc/util/Build
@@ -1,5 +1,4 @@
perf-y += header.o
-perf-y += machine.o
perf-y += kvm-stat.o
perf-y += perf_regs.o
perf-y += mem-events.o
diff --git a/tools/perf/arch/powerpc/util/machine.c b/tools/perf/arch/powerpc/util/machine.c
deleted file mode 100644
index e652a1aa8132..000000000000
--- a/tools/perf/arch/powerpc/util/machine.c
+++ /dev/null
@@ -1,25 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-
-#include <inttypes.h>
-#include <stdio.h>
-#include <string.h>
-#include <internal/lib.h> // page_size
-#include "debug.h"
-#include "symbol.h"
-
-/* On powerpc kernel text segment start at memory addresses, 0xc000000000000000
- * whereas the modules are located at very high memory addresses,
- * for example 0xc00800000xxxxxxx. The gap between end of kernel text segment
- * and beginning of first module's text segment is very high.
- * 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, '['))
- /* Limit the range of last kernel symbol */
- p->end += page_size;
- else
- p->end = c->start;
- pr_debug4("%s sym:%s end:%#" PRIx64 "\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 7644a4f6d4a4..98bc3f39d5f3 100644
--- a/tools/perf/arch/s390/util/machine.c
+++ b/tools/perf/arch/s390/util/machine.c
@@ -35,19 +35,3 @@ 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:%#" PRIx64 "\n", __func__, p->name, p->end);
-}
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 623094e866fd..f72baf636724 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 5fcdd1f94c56..0b893dcc8ea6 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -241,7 +241,6 @@ 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);