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perf genelf: Set ELF program header addresses properly

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[ Upstream commit 1af478903fc48c1409a8dd6b698383b62387adf1 ]

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

Fixes: babd04386b1df8c3 ("perf jit: Include program header in ELF files")
Reviewed-by: Ian Rogers <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Fangrui Song <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Lieven Hey <[email protected]>
Cc: Milian Wolff <[email protected]>
Cc: Pablo Galindo <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Namhyung Kim 2023-12-11 23:05:44 -08:00 • committed by Greg Kroah-Hartman
commit 887ab0a444
1 changed files with 3 additions and 3 deletions
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6
tools/perf/util/genelf.c
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@ -296,9 +296,9 @@ 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;