From 55b659c0b52a7c5f3fc493dd9c19ac76f09d0ccb Mon Sep 17 00:00:00 2001 From: Bihong Yu Date: Sat, 22 Jan 2022 16:15:50 +0800 Subject: [PATCH] elf: add section adderss for STT_NOTYPE type of symbol Sometimes, the symbol type of the new global static variable in the patch may be STT_NOTYPE. We should add the section adderss to st_value for this type symbol, otherwise, the calculated adderss for this type symbol will be wrong, which may result in the patched process coredump. Signed-off-by: Bihong Yu --- src/kpatch_elf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/kpatch_elf.c b/src/kpatch_elf.c index 3ac56d9..5acf370 100644 --- a/src/kpatch_elf.c +++ b/src/kpatch_elf.c @@ -789,6 +789,7 @@ symbol_resolve(struct object_file *o, break; case STT_NOTYPE: // for Systemtap symbol _.stapsdt.base.kpatch + s->st_value += shdr[s->st_shndx].sh_addr; break; default: -- 2.27.0