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From: Tao Liu <ltao@redhat.com>
To: yamazaki-msmt@nec.com, k-hagio-ab@nec.com, kexec@lists.infradead.org
Cc: aravinda@linux.vnet.ibm.com, devel@lists.crash-utility.osci.io,
	Tao Liu <ltao@redhat.com>
Subject: [PATCH RFC][makedumpfile 01/10] dwarf_info: Support kernel address randomization
Date: Tue, 10 Jun 2025 21:57:34 +1200	[thread overview]
Message-ID: <20250610095743.18073-2-ltao@redhat.com> (raw)
In-Reply-To: <20250610095743.18073-1-ltao@redhat.com>

There is a bug of not supporting randomized kernel address, this patch fix it.

Signed-off-by: Tao Liu <ltao@redhat.com>
---
 erase_info.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/erase_info.c b/erase_info.c
index af6bfae..b67d1d0 100644
--- a/erase_info.c
+++ b/erase_info.c
@@ -1881,7 +1881,7 @@ get_symbol_addr_all(char *name) {
 	if (!strcmp(get_dwarf_module_name(), "vmlinux")) {
 		symbol_addr = get_symbol_addr(name);
 		if (symbol_addr)
-			return symbol_addr;
+			return symbol_addr + info->kaslr_offset;
 
 		vmlinux_searched = 1;
 	}
@@ -1942,9 +1942,9 @@ get_symbol_addr_all(char *name) {
 	 * this function is called with debuginfo set to a particular
 	 * kernel module and we are looking for symbol in vmlinux
 	 */
-	if (!vmlinux_searched)
-		return get_symbol_addr(name);
-	else
+	if (!vmlinux_searched && !!(symbol_addr = get_symbol_addr(name))) {
+		return symbol_addr + info->kaslr_offset;
+	} else
 		return NOT_FOUND_SYMBOL;
 }
 
-- 
2.47.0



  reply	other threads:[~2025-06-10 10:56 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-10  9:57 [PATCH RFC][makedumpfile 00/10] btf/kallsyms based eppic extension for mm page filtering Tao Liu
2025-06-10  9:57 ` Tao Liu [this message]
2025-09-08 11:11   ` [PATCH RFC][makedumpfile 01/10] dwarf_info: Support kernel address randomization YAMAZAKI MASAMITSU(山崎 真光)
2025-09-09  5:24     ` Tao Liu
2025-09-29  6:30   ` HAGIO KAZUHITO(萩尾 一仁)
2025-09-30  0:34     ` Tao Liu
2025-09-30  1:28       ` HAGIO KAZUHITO(萩尾 一仁)
2025-09-30  1:44         ` Tao Liu
2025-06-10  9:57 ` [PATCH RFC][makedumpfile 02/10] dwarf_info: Fix a infinite recursion bug for search_domain Tao Liu
2025-10-03  7:22   ` YAMAZAKI MASAMITSU(山崎 真光)
2025-10-05 23:25     ` Tao Liu
2025-10-17  4:21   ` HAGIO KAZUHITO(萩尾 一仁)
2025-10-20  3:52     ` Tao Liu
2025-06-10  9:57 ` [PATCH RFC][makedumpfile 03/10] Add page filtering function Tao Liu
2025-06-10  9:57 ` [PATCH RFC][makedumpfile 04/10] Add btf/kallsyms support for symbol type/address resolving Tao Liu
2025-06-10  9:57 ` [PATCH RFC][makedumpfile 05/10] Export necessary btf/kallsyms functions to eppic extension Tao Liu
2025-06-10  9:57 ` [PATCH RFC][makedumpfile 06/10] Port the maple tree data structures and functions Tao Liu
2025-06-10  9:57 ` [PATCH RFC][makedumpfile 07/10] Supporting main() as the entry of eppic script Tao Liu
2025-06-10  9:57 ` [PATCH RFC][makedumpfile 08/10] Enable page filtering for dwarf eppic Tao Liu
2025-06-10  9:57 ` [PATCH RFC][makedumpfile 09/10] Enable page filtering for btf/kallsyms eppic Tao Liu
2025-06-10  9:57 ` [PATCH RFC][makedumpfile 10/10] Introducing 2 eppic scripts to test the dwarf/btf eppic extension Tao Liu
2025-08-05  3:16 ` [PATCH RFC][makedumpfile 00/10] btf/kallsyms based eppic extension for mm page filtering Tao Liu
2025-08-07 11:42   ` YAMAZAKI MASAMITSU(山崎 真光)
2025-08-11  0:04     ` Tao Liu
2025-09-05 12:41       ` YAMAZAKI MASAMITSU(山崎 真光)
2025-09-09  1:56         ` Tao Liu

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