crash: fix reproducibility

Fix reproducibility issue by retrieving the compiler version from the CC
env variable, which define the compiler used in the build and not from
the native gcc compiler install in the host machine.

Signed-off-by: Kéléfa Sané <kelefa.sane@smile.fr>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

3 files changed, 49 insertions, 3 deletions

diff --git a/meta-oe/conf/include/non-repro-meta-oe.inc b/meta-oe/conf/include/non-repro-meta-oe.inc
index 894d7f330a..ae4fb1d194 100755
--- a/meta-oe/conf/include/non-repro-meta-oe.inc
+++ b/meta-oe/conf/include/non-repro-meta-oe.inc
@@ -7,9 +7,6 @@ KNOWN_NON_REPRO_META_OE = " \
     asio-ptest \
     asio-src \
     cpuid-doc \
-    crash \
-    crash-dbg \
-    crash-src \
     dhrystone \
     dhrystone-dbg \
     dhrystone-dev \
diff --git a/meta-oe/recipes-kernel/crash/crash.inc b/meta-oe/recipes-kernel/crash/crash.inc
index aef77be1a0..45fc9cd1fd 100644
--- a/meta-oe/recipes-kernel/crash/crash.inc
+++ b/meta-oe/recipes-kernel/crash/crash.inc
@@ -27,6 +27,7 @@ SRC_URI = "git://github.com/crash-utility/${BPN}.git;branch=master;protocol=http
            file://0003-Fix-build-failure-in-readline-lib.patch \
            file://0004-tools.c-do-not-use-keywords-nullptr-as-a-variable-in.patch \
            file://0005-Fix-build-failure-on-32bit-machine-i686.patch \
+           file://0001-Use-CC-env-var-to-get-compiler-version.patch \
            "
 SRCREV = "f13853cef53f5c5463a51021edbc81977e2b1405"
 
diff --git a/meta-oe/recipes-kernel/crash/crash/0001-Use-CC-env-var-to-get-compiler-version.patch b/meta-oe/recipes-kernel/crash/crash/0001-Use-CC-env-var-to-get-compiler-version.patch
new file mode 100644
index 0000000000..773598def1
--- /dev/null
+++ b/meta-oe/recipes-kernel/crash/crash/0001-Use-CC-env-var-to-get-compiler-version.patch
@@ -0,0 +1,48 @@
+From 6ad5e9302057e157ab701880a8543ca59058df2d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?K=C3=A9l=C3=A9fa=20San=C3=A9?= <kelefa.sane@smile.fr>
+Date: Fri, 16 May 2025 16:18:28 +0200
+Subject: [PATCH v2] Use CC env var to get compiler version
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The source file build_data.c generated at compilation time define a
+variable compiler_version which is obtained by calling "gcc --version"
+cmd. This call retrieve the native gcc compiler install on host build
+machine but not necessarily the compiler use to build the project (ex:
+cross compilation).
+
+The CC env variable commonly used in Makefile project define the
+compiler to use at build, so this is the appropriate way to retrieve the
+compiler version, when the CC env var is define.
+
+Upstream-Status: Submitted [https://lists.crash-utility.osci.io/archives/list/devel@lists.crash-utility.osci.io/thread/V3G3QH3YW6WZWD56TVTFQIHYLZ33UIJL/]
+
+Signed-off-by: Kéléfa Sané <kelefa.sane@smile.fr>
+---
+ configure.c | 12 +++++++++++-
+ 1 file changed, 11 insertions(+), 1 deletion(-)
+
+diff --git a/configure.c b/configure.c
+index 4668c9a..4b65bd7 100644
+--- a/configure.c
++++ b/configure.c
+@@ -1362,7 +1362,17 @@ make_build_data(char *target)
+ 
+         fp1 = popen("date", "r");
+         fp2 = popen("id", "r");
+-       fp3 = popen("gcc --version", "r");
++
++       const char *cc_env = getenv("CC");
++       if(NULL == cc_env) {
++               fp3 = popen("gcc --version", "r");
++       }
++       else {
++               char compiler_version_cmd[512];
++
++               snprintf(compiler_version_cmd, sizeof(compiler_version_cmd), "%s --version", cc_env);
++               fp3 = popen(compiler_version_cmd, "r");
++       }
+ 
+        if ((fp4 = fopen("build_data.c", "w")) == NULL) {
+                perror("build_data.c");