请问怎么让D1的Linux log 显示 CST 时间呢？而不是UTC时间。

[memory]

[ 0.000000] OF: fdt: Ignoring memory range 0x40000000 - 0x40200000
[ 0.000000] Linux version 5.4.61 (memory@ubuntu) (riscv64-unknown-linux-gnu-gcc (C-SKY RISCV Tools V1.8.4 B20200702) 8.1.0, GNU ld (GNU Binutils) 2.32) #357 PREEMPT Tue Jan 18 09:18:31 UTC 2022
[ 0.000000] cma: Reserved 8 MiB at 0x0000000043800000

$ date

Tue Jan 18 17:35:49 CST 2022

请问怎么让D1的Linux log 显示 CST北京时间呢？

[tigger]

同问 同问 同问

[YuzukiTsuru]

Linux这个时间是KBUILD_BUILD_TIMESTAMP，按照文档它默认输出就是一个UTC时间，改输出应该是可以的（？

KBUILD_BUILD_TIMESTAMP

[smartcar]

KBUILD_BUILD_TIMESTAMP 怎么改成 CST+8 时区？

[smartcar]

@yuzukitsuru

$ repo diff lichee/linux-5.4/scripts/mkcompile_h

project lichee/linux-5.4/
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
index 4578e413b..9227c01e1 100755
--- a/scripts/mkcompile_h
+++ b/scripts/mkcompile_h
@@ -36,7 +36,7 @@ else
 fi

 if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then
-       TIMESTAMP=`date`
+       TIMESTAMP=`date +%Y%m%d%H%M%S`
 else
        TIMESTAMP=$KBUILD_BUILD_TIMESTAMP
 fi

搞定了：

root@TinaLinux:/# cat /proc/version
Linux version 5.4.61 (smartcar@ubuntu) (riscv64-unknown-linux-gnu-gcc (C-SKY RISCV Tools V1.8.4 B20200702) 8.1.0, GNU ld (GNU Binutils) 2.32) #2 PREEMPT 20220310023542
root@TinaLinux:/#
root@TinaLinux:/#
root@TinaLinux:/#
root@TinaLinux:/#
root@TinaLinux:/#

应该是改这个 shell 指令了， 20220310023542 还是 UTC 时间， 我去查查怎么改成 CST+8

[smartcar]

改成这样 TIMESTAMP=TZ=UTC-8 date +"%Y-%m-%d %H:%M:%S" 搞定：

$ repo diff lichee/linux-5.4/scripts/mkcompile_h

project lichee/linux-5.4/
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
index 4578e413b..f861eed94 100755
--- a/scripts/mkcompile_h
+++ b/scripts/mkcompile_h
@@ -36,7 +36,7 @@ else
 fi

 if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then
-       TIMESTAMP=`date`
+       TIMESTAMP=`TZ=UTC-8 date +"%Y-%m-%d %H:%M:%S"`
 else
        TIMESTAMP=$KBUILD_BUILD_TIMESTAMP
 fi

正常了：

root@TinaLinux:/#
root@TinaLinux:/# cat /proc/version
Linux version 5.4.61 (smartcar@ubuntu) (riscv64-unknown-linux-gnu-gcc (C-SKY RISCV Tools V1.8.4 B20200702) 8.1.0, GNU ld (GNU Binutils) 2.32) #3 PREEMPT 2022-03-10 10:50:30
root@TinaLinux:/#