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printk: show build commitid in the front of dmesg 

This can help us find source code version when troubleshooting.

Signed-off-by: wenlunpeng <wenlunpeng@uniontech.com>
Signed-off-by: WangYuli <wangyuli@uniontech.com>
This commit is contained in:
wenlunpeng 2024-05-09 11:19:11 +08:00 committed by WangYuli
parent c72a2fdcf4
commit 0aed0abf54
5 changed files with 10 additions and 1 deletions
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1
include/linux/printk.h
View File

@ -11,6 +11,7 @@
extern const char linux_banner[];
extern const char linux_proc_banner[];
extern const char linux_commitid_banner[];
extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */

2
init/main.c
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@ -894,7 +894,7 @@ void start_kernel(void)
*/
boot_cpu_init();
page_address_init();
pr_notice("%s", linux_banner);
pr_notice("%s", linux_commitid_banner);
early_security_init();
setup_arch(&command_line);
setup_boot_config();

4
init/version-timestamp.c
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@ -28,3 +28,7 @@ struct uts_namespace init_uts_ns = {
const char linux_banner[] =
"Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@"
LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n";
const char linux_commitid_banner[] =
"Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@"
LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") (" GIT_COMMITID ") " UTS_VERSION "\n";

1
init/version.c
View File

@ -48,6 +48,7 @@ BUILD_LTO_INFO;
struct uts_namespace init_uts_ns __weak;
const char linux_banner[] __weak;
const char linux_commitid_banner[] __weak;
#include "version-timestamp.c"

3
scripts/mkcompile_h
View File

@ -19,9 +19,12 @@ fi
LD_VERSION=$(LC_ALL=C $LD -v | head -n1 |
sed -e 's/(compatible with [^)]*)//' -e 's/[[:space:]]*$//')
GIT_COMMITID=$(git log -1 --pretty=format:%h 2>/dev/null)
cat <<EOF
#define UTS_MACHINE "${UTS_MACHINE}"
#define LINUX_COMPILE_BY "${LINUX_COMPILE_BY}"
#define LINUX_COMPILE_HOST "${LINUX_COMPILE_HOST}"
#define LINUX_COMPILER "${CC_VERSION}, ${LD_VERSION}"
#define GIT_COMMITID "${GIT_COMMITID}"
EOF