[U-Boot] [PATCH][RFC] Update U-Boot's build timestamp on every compile

Peter Tyser
2008-10-17T22:51:21Z

Use the GNU 'date' command to auto-generate a new U-Boot
timestamp on every compile.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
---
I noticed that the build time of U-Boot was not updated on every
compile which occassionally threw me for a loop as to whether
a new U-Boot binary was programmed, etc. This patch updates
a U_BOOT_DATE define on every compile which can then be used
in place of the multiple "__DATE__ - __TIME__" preprocessor
macros that are currently used.

This also ensures the timestamp will be the same for a board
if it uses __TIME__ in multiple files.

Let me know if this would be accepted into mainline and I'll
generate a formal patch updating all __DATE__/__TIME__
references.

Makefile | 2 ++
cpu/mpc85xx/start.S | 2 +-
2 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/Makefile b/Makefile
index c711df6..2c76003 100644
--- a/Makefile
+++ b/Makefile
@@ -366,6 +366,8 @@ $(VERSION_FILE):
@( printf '#define U_BOOT_VERSION "U-Boot %s%s"\n' "$(U_BOOT_VERSION)" \
'$(shell $(CONFIG_SHELL) $(TOPDIR)/tools/setlocalversion $(TOPDIR))' \
) > $@.tmp
+ @( printf '#define U_BOOT_DATE "%s"\n' '$(shell date +"%b %d %C%y - %T")' \
+ ) >> $@.tmp
@cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@

gdbtools:
diff --git a/cpu/mpc85xx/start.S b/cpu/mpc85xx/start.S
index 25d0390..dc55700 100644
--- a/cpu/mpc85xx/start.S
+++ b/cpu/mpc85xx/start.S
@@ -272,7 +272,7 @@ _start:
.globl version_string
version_string:
.ascii U_BOOT_VERSION
- .ascii " (", __DATE__, " - ", __TIME__, ")"
+ .ascii " (", U_BOOT_DATE, ")"
.ascii CONFIG_IDENT_STRING, "\0"

.align 4
--
1.6.0.2.GIT