Fix crash parsing vmcore file failed for loongarch64

0004-support-vmp_area_list-replaced-with-VMALLOC_START.patch

@@ -0,0 +1,38 @@
+From 1fd01b81fc1d7ba1a0dde4bfd10e6ad9189e8376 Mon Sep 17 00:00:00 2001
+From: zhangzikang <zhangzikang@kylinos.cn>
+Date: Fri, 16 Aug 2024 14:45:33 +0800
+Subject: [PATCH] support vmp_area_list replaced with VMALLOC_START
+
+---
+ memory.c | 11 ++++++++++-
+ 1 file changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/memory.c b/memory.c
+index 86ccec5..c3c18a2 100644
+--- a/memory.c
++++ b/memory.c
+@@ -17218,11 +17218,20 @@ first_vmalloc_address(void)
+ {
+ 	static ulong vmalloc_start = 0;
+         ulong vm_struct, vmap_area;
++	char *vmalloc_start_string;
+ 
+ 	if (DUMPFILE() && vmalloc_start)
+ 		return vmalloc_start;
+ 
+-	if (vt->flags & USE_VMAP_AREA) {
++	/*
++	 * 'vmap_area_list' and 'vmlist' in Linux 6.9 and later kernels might be
++	 * empty, prefer NUMBER(VMALLOC_START) if exported in vmcoreinfo.
++	 */
++	vmalloc_start_string = pc->read_vmcoreinfo("NUMBER(VMALLOC_START)");
++	if (vmalloc_start_string) {
++		vmalloc_start = htol(vmalloc_start_string, QUIET, NULL);
++		free(vmalloc_start_string);
++	}else if (vt->flags & USE_VMAP_AREA) {
+ 		get_symbol_data("vmap_area_list", sizeof(void *), &vmap_area);
+ 		if (!vmap_area)
+ 			return 0;
+-- 
+2.43.0
+

crash.spec

@@ -1,6 +1,6 @@
 Name: crash
 Version: 8.0.4
-Release: 3
+Release: 4
 Summary: Linux kernel crash utility.
 License: GPLv3
 URL: https://crash-utility.github.io
@@ -11,6 +11,7 @@ Patch0: 0000-lzo_snappy.patch
 Patch1: 0001-add-SDEI-stack-resolution.patch
 Patch2: 0002-crash-8.0.2-sw.patch
 Patch3: 0003-crash-8.0.4-add-support-for-loongarch64.patch
+Patch4: 0004-support-vmp_area_list-replaced-with-VMALLOC_START.patch
 
 BuildRequires: ncurses-devel zlib-devel lzo-devel snappy-devel texinfo libzstd-devel 
 BuildRequires: gcc gcc-c++ bison m4
@@ -49,6 +50,7 @@ created by manufacturer-specific firmware.
 %endif
 %ifarch loongarch64
 %patch3 -p1
+%patch4 -p1
 %endif
 
 %build
@@ -84,6 +86,9 @@ install -D -m 0644 defs.h %{buildroot}%{_includedir}/%{name}/defs.h
 %{_mandir}/man8/crash.8*
 
 %changelog
+* Tue Jul 30 2024 zhangzikang <zhangzikang@kylinos.cn> - 8.0.4-4
+- Fix crash parsing vmcore file failed for loongarch64
+
 * Tue May 28 2024 shaojiansong <shaojiansong@kylinos.cn> - 8.0.4-3
 - Fix lack of loongarch64 and sw_64 patch files in src.rpm package which is build from any platform.