e3d89e9bf0
- gensrc: we should add align while FLAGS_PUSH_SECTION flag is set - elf: add section adderss for STT_NOTYPE type of symbol Signed-off-by: imxcc <xingchaochao@huawei.com> (cherry picked from commit 70651236ba10ff7178f3969445ceccecbaba5831)
31 lines
952 B
Diff
31 lines
952 B
Diff
From 55b659c0b52a7c5f3fc493dd9c19ac76f09d0ccb Mon Sep 17 00:00:00 2001
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From: Bihong Yu <yubihong@huawei.com>
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Date: Sat, 22 Jan 2022 16:15:50 +0800
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Subject: [PATCH] elf: add section adderss for STT_NOTYPE type of symbol
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Sometimes, the symbol type of the new global static variable in the
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patch may be STT_NOTYPE. We should add the section adderss to st_value
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for this type symbol, otherwise, the calculated adderss for this type
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symbol will be wrong, which may result in the patched process coredump.
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Signed-off-by: Bihong Yu <yubihong@huawei.com>
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---
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src/kpatch_elf.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/src/kpatch_elf.c b/src/kpatch_elf.c
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index 3ac56d9..5acf370 100644
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--- a/src/kpatch_elf.c
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+++ b/src/kpatch_elf.c
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@@ -789,6 +789,7 @@ symbol_resolve(struct object_file *o,
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break;
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case STT_NOTYPE: // for Systemtap symbol _.stapsdt.base.kpatch
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+ s->st_value += shdr[s->st_shndx].sh_addr;
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break;
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default:
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--
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2.27.0
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