diff options
Diffstat (limited to 'package/utils/busybox/patches/530-use-SOURCE_DATE_EPOCH-for-timestamp-if-available.patch')
| -rw-r--r-- | package/utils/busybox/patches/530-use-SOURCE_DATE_EPOCH-for-timestamp-if-available.patch | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/package/utils/busybox/patches/530-use-SOURCE_DATE_EPOCH-for-timestamp-if-available.patch b/package/utils/busybox/patches/530-use-SOURCE_DATE_EPOCH-for-timestamp-if-available.patch deleted file mode 100644 index af473622ed..0000000000 --- a/package/utils/busybox/patches/530-use-SOURCE_DATE_EPOCH-for-timestamp-if-available.patch +++ /dev/null @@ -1,80 +0,0 @@ -From 59f773ee81a8945321f4aa20abc5e9577e6483e4 Mon Sep 17 00:00:00 2001 -From: Paul Spooren <mail@aparcar.org> -Date: Thu, 13 May 2021 11:25:34 +0200 -Subject: [PATCH] use SOURCE_DATE_EPOCH for timestamp if available - -The SOURCE_DATE_EPOCH is an effort of the Reproducible Builds -organization to make timestamps/build dates in compiled tools -deterministic over several repetitive builds. - -Busybox shows by default the build date timestamp which changes whenever -compiled. To have a reasonable accurate build date while staying -reproducible, it's possible to use the *date of last source -modification* rather than the current time and date. - -Further information on SOURCE_DATE_EPOCH are available online [1]. - -This patch modifies `confdata.c` so that the content of the -SOURCE_DATE_EPOCH env variable is used as timestamp. - -To be independent of different timezones between builds, whenever -SOURCE_DATE_EPOCH is defined the GMT time is used. - -[1]: https://reproducible-builds.org/docs/source-date-epoch/ - -Signed-off-by: Paul Spooren <mail@aparcar.org> ---- - scripts/kconfig/confdata.c | 17 ++++++++++++++--- - 1 file changed, 14 insertions(+), 3 deletions(-) - -diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c -index b05b96e45..73c25e3a8 100644 ---- a/scripts/kconfig/confdata.c -+++ b/scripts/kconfig/confdata.c -@@ -342,6 +342,8 @@ int conf_write(const char *name) - time_t now; - int use_timestamp = 1; - char *env; -+ char *source_date_epoch; -+ struct tm *build_time; - - dirname[0] = 0; - if (name && name[0]) { -@@ -378,7 +380,16 @@ int conf_write(const char *name) - } - sym = sym_lookup("KERNELVERSION", 0); - sym_calc_value(sym); -- time(&now); -+ -+ source_date_epoch = getenv("SOURCE_DATE_EPOCH"); -+ if (source_date_epoch && *source_date_epoch) { -+ now = strtoull(source_date_epoch, NULL, 10); -+ build_time = gmtime(&now); -+ } else { -+ time(&now); -+ build_time = localtime(&now); -+ } -+ - env = getenv("KCONFIG_NOTIMESTAMP"); - if (env && *env) - use_timestamp = 0; -@@ -398,14 +409,14 @@ int conf_write(const char *name) - if (use_timestamp) { - size_t ret = \ - strftime(buf, sizeof(buf), "#define AUTOCONF_TIMESTAMP " -- "\"%Y-%m-%d %H:%M:%S %Z\"\n", localtime(&now)); -+ "\"%Y-%m-%d %H:%M:%S %Z\"\n", build_time); - /* if user has Factory timezone or some other odd install, the - * %Z above will overflow the string leaving us with undefined - * results ... so let's try again without the timezone. - */ - if (ret == 0) - strftime(buf, sizeof(buf), "#define AUTOCONF_TIMESTAMP " -- "\"%Y-%m-%d %H:%M:%S\"\n", localtime(&now)); -+ "\"%Y-%m-%d %H:%M:%S\"\n", build_time); - } else { /* bbox */ - strcpy(buf, "#define AUTOCONF_TIMESTAMP \"\"\n"); - } --- -2.30.2 - |