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8379454: SA still calculates end address with incorrect alignment

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Reviewed-by: kevinw, cjplummer
This commit is contained in:
Yasumasa Suenaga 2026-03-26 14:50:56 +00:00
parent 22831cb0d8
commit 8ecb14cecf
1 changed files with 2 additions and 1 deletions
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3
src/jdk.hotspot.agent/linux/native/libsaproc/libproc_impl.c
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@ -182,13 +182,14 @@ static bool fill_addr_info(lib_info* lib) {
return false;
}
long page_size = sysconf(_SC_PAGE_SIZE);
lib->end = (uintptr_t)-1L;
lib->exec_start = (uintptr_t)-1L;
lib->exec_end = (uintptr_t)-1L;
for (ph = phbuf, cnt = 0; cnt < ehdr.e_phnum; cnt++, ph++) {
if (ph->p_type == PT_LOAD) {
uintptr_t aligned_start = lib->base + align_down(ph->p_vaddr, ph->p_align);
uintptr_t aligned_end = aligned_start + align_up(ph->p_memsz, ph->p_align);
uintptr_t aligned_end = aligned_start + align_up(ph->p_memsz, page_size);
if ((lib->end == (uintptr_t)-1L) || (lib->end < aligned_end)) {
lib->end = aligned_end;
}