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perf genelf: Set ELF program header addresses properly

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[ Upstream commit 1af478903f ]

The text section starts after the ELF headers so PHDR.p_vaddr and
others should have the correct addresses.

Fixes: babd04386b ("perf jit: Include program header in ELF files")
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Lieven Hey <lieven.hey@kdab.com>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Pablo Galindo <pablogsal@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20231212070547.612536-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Namhyung Kim 2023-12-11 23:05:44 -08:00 committed by Greg Kroah-Hartman
parent 2f4c1c3580
commit c8d6d5d080
1 changed files with 3 additions and 3 deletions
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6
tools/perf/util/genelf.c
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@ -293,9 +293,9 @@ jit_write_elf(int fd, uint64_t load_addr, const char *sym,
*/
phdr = elf_newphdr(e, 1);
phdr[0].p_type = PT_LOAD;
phdr[0].p_offset = 0;
phdr[0].p_vaddr = 0;
phdr[0].p_paddr = 0;
phdr[0].p_offset = GEN_ELF_TEXT_OFFSET;
phdr[0].p_vaddr = GEN_ELF_TEXT_OFFSET;
phdr[0].p_paddr = GEN_ELF_TEXT_OFFSET;
phdr[0].p_filesz = csize;
phdr[0].p_memsz = csize;
phdr[0].p_flags = PF_X | PF_R;