From: Adrian Hunter <adrian.hunter@xxxxxxxxx>
When a program header was added, it moved the text section but
GEN_ELF_TEXT_OFFSET was not updated.
Fix by adding the program header size and aligning.
Fixes: babd04386b1df8c3 ("perf jit: Include program header in ELF files")
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Tested-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Ian Rogers <irogers@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Lieven Hey <lieven.hey@xxxxxxxx>
Link: https://lore.kernel.org/r/20221014170905.64069-7-adrian.hunter@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
[namhyung: use "linux/kernel.h" instead to avoid build failure]
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
tools/perf/util/genelf.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/genelf.h b/tools/perf/util/genelf.h
index b5c909546e3f..6af062d1c452 100644
--- a/tools/perf/util/genelf.h
+++ b/tools/perf/util/genelf.h
@@ -2,6 +2,8 @@
#ifndef __GENELF_H__
#define __GENELF_H__
+#include <linux/kernel.h>
+
/* genelf.c */
int jit_write_elf(int fd, uint64_t code_addr, const char *sym,
const void *code, int csize, void *debug, int nr_debug_entries,
@@ -76,6 +78,6 @@ int jit_add_debug_info(Elf *e, uint64_t code_addr, void *debug, int nr_debug_ent
#endif
/* The .text section is directly after the ELF header */
-#define GEN_ELF_TEXT_OFFSET sizeof(Elf_Ehdr)
+#define GEN_ELF_TEXT_OFFSET round_up(sizeof(Elf_Ehdr) + sizeof(Elf_Phdr), 16)
#endif
--
2.43.0.472.g3155946c3a-goog
