2d74f61787
commit a5d20d42a2f2dc2b2f9e9361912062732414090d upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <internal/lib.h> // page_size
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#include "machine.h"
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#include "api/fs/fs.h"
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#include "debug.h"
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#include "symbol.h"
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int arch__fix_module_text_start(u64 *start, u64 *size, const char *name)
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{
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u64 m_start = *start;
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char path[PATH_MAX];
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snprintf(path, PATH_MAX, "module/%.*s/sections/.text",
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(int)strlen(name) - 2, name + 1);
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if (sysfs__read_ull(path, (unsigned long long *)start) < 0) {
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pr_debug2("Using module %s start:%#lx\n", path, m_start);
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*start = m_start;
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} else {
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/* Successful read of the modules segment text start address.
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* Calculate difference between module start address
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* in memory and module text segment start address.
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* For example module load address is 0x3ff8011b000
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* (from /proc/modules) and module text segment start
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* address is 0x3ff8011b870 (from file above).
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*
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* Adjust the module size and subtract the GOT table
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* size located at the beginning of the module.
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*/
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*size -= (*start - m_start);
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}
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return 0;
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}
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