[PATCH for v5.10] perf symbol: Remove arch__symbols__fixup_end()

[Namhyung Kim]

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

Signed-off-by: Namhyung Kim <namhyung at kernel.org>
Acked-by: Ian Rogers <irogers at google.com>
Cc: Heiko Carstens <hca at linux.ibm.com>
Cc: Ingo Molnar <mingo at kernel.org>
Cc: Jiri Olsa <jolsa at kernel.org>
Cc: John Garry <john.garry at huawei.com>
Cc: Leo Yan <leo.yan at linaro.org>
Cc: Mark Rutland <mark.rutland at arm.com>
Cc: Masami Hiramatsu <mhiramat at kernel.org>
Cc: Mathieu Poirier <mathieu.poirier at linaro.org>
Cc: Michael Ellerman <mpe at ellerman.id.au>
Cc: Michael Petlan <mpetlan at redhat.com>
Cc: Peter Zijlstra <peterz at infradead.org>
Cc: Song Liu <songliubraving at fb.com>
Cc: Will Deacon <will at kernel.org>
Cc: linux-s390 at vger.kernel.org
Cc: linuxppc-dev at lists.ozlabs.org
Link: https://lore.kernel.org/r/20220416004048.1514900-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme at 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);
-- 
2.36.0.464.gb9c8b46e94-goog