mirror of
https://github.com/pygos/build.git
synced 2024-11-14 15:37:11 +01:00
120 lines
4.5 KiB
Diff
120 lines
4.5 KiB
Diff
From be5a505d771a77c640acc35ceaa470c80e62f954 Mon Sep 17 00:00:00 2001
|
|
From: Denys Vlasenko <vda.linux@googlemail.com>
|
|
Date: Thu, 24 Oct 2019 16:26:55 +0200
|
|
Subject: [PATCH] Remove syscall wrappers around clock_gettime, closes 12091
|
|
|
|
12091 "Direct use of __NR_clock_gettime is not time64-safe".
|
|
|
|
function old new delta
|
|
runsv_main 1698 1712 +14
|
|
startservice 378 383 +5
|
|
get_mono 31 25 -6
|
|
date_main 932 926 -6
|
|
gettimeofday_ns 17 - -17
|
|
------------------------------------------------------------------------------
|
|
(add/remove: 0/1 grow/shrink: 2/2 up/down: 19/-29) Total: -10 bytes
|
|
|
|
Upstream-Status: Backport [https://git.busybox.net/busybox/commit/?id=be5a505d771a77c640acc35ceaa470c80e62f954]
|
|
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
|
---
|
|
Makefile.flags | 6 ++++--
|
|
coreutils/date.c | 16 +++-------------
|
|
libbb/time.c | 11 +----------
|
|
runit/runsv.c | 11 +----------
|
|
4 files changed, 9 insertions(+), 35 deletions(-)
|
|
|
|
--- a/Makefile.flags
|
|
+++ b/Makefile.flags
|
|
@@ -129,10 +129,12 @@ endif
|
|
# fall back to using a temp file:
|
|
CRYPT_AVAILABLE := $(shell echo 'int main(void){return 0;}' >crypttest.c; $(CC) $(CFLAGS) -lcrypt -o /dev/null crypttest.c >/dev/null 2>&1 && echo "y"; rm crypttest.c)
|
|
ifeq ($(CRYPT_AVAILABLE),y)
|
|
-LDLIBS += m crypt
|
|
+LDLIBS += m rt crypt
|
|
else
|
|
-LDLIBS += m
|
|
+LDLIBS += m rt
|
|
endif
|
|
+# libm may be needed for dc, awk, ntpd
|
|
+# librt may be needed for clock_gettime()
|
|
|
|
# libpam may use libpthread, libdl and/or libaudit.
|
|
# On some platforms that requires an explicit -lpthread, -ldl, -laudit.
|
|
--- a/coreutils/date.c
|
|
+++ b/coreutils/date.c
|
|
@@ -33,10 +33,9 @@
|
|
//config: Enable option (-I) to output an ISO-8601 compliant
|
|
//config: date/time string.
|
|
//config:
|
|
-//config:# defaults to "no": stat's nanosecond field is a bit non-portable
|
|
//config:config FEATURE_DATE_NANO
|
|
//config: bool "Support %[num]N nanosecond format specifier"
|
|
-//config: default n # syscall(__NR_clock_gettime) or syscall(__NR_clock_gettime64)
|
|
+//config: default n # stat's nanosecond field is a bit non-portable
|
|
//config: depends on DATE
|
|
//config: select PLATFORM_LINUX
|
|
//config: help
|
|
@@ -271,17 +270,8 @@ int date_main(int argc UNUSED_PARAM, cha
|
|
*/
|
|
#endif
|
|
} else {
|
|
-#if ENABLE_FEATURE_DATE_NANO && defined(__NR_clock_gettime)
|
|
- /* libc has incredibly messy way of doing this,
|
|
- * typically requiring -lrt. We just skip all this mess */
|
|
- syscall(__NR_clock_gettime, CLOCK_REALTIME, &ts);
|
|
-#elif ENABLE_FEATURE_DATE_NANO && __TIMESIZE == 64
|
|
- /* Let's only support the 64 suffix syscalls for 64-bit time_t.
|
|
- * This simplifies the code for us as we don't need to convert
|
|
- * between 64-bit and 32-bit. We also don't have a way to
|
|
- * report overflow errors here.
|
|
- */
|
|
- syscall(__NR_clock_gettime64, CLOCK_REALTIME, &ts);
|
|
+#if ENABLE_FEATURE_DATE_NANO
|
|
+ clock_gettime(CLOCK_REALTIME, &ts);
|
|
#else
|
|
time(&ts.tv_sec);
|
|
#endif
|
|
--- a/libbb/time.c
|
|
+++ b/libbb/time.c
|
|
@@ -253,18 +253,9 @@ char* FAST_FUNC strftime_YYYYMMDDHHMMSS(
|
|
#define CLOCK_MONOTONIC 1
|
|
#endif
|
|
|
|
-/* libc has incredibly messy way of doing this,
|
|
- * typically requiring -lrt. We just skip all this mess */
|
|
static void get_mono(struct timespec *ts)
|
|
{
|
|
-#if defined(__NR_clock_gettime)
|
|
- if (syscall(__NR_clock_gettime, CLOCK_MONOTONIC, ts))
|
|
-#elif __TIMESIZE == 64
|
|
- if (syscall(__NR_clock_gettime64, CLOCK_MONOTONIC, ts))
|
|
-#else
|
|
-# error "We currently don't support architectures without " \
|
|
- "the __NR_clock_gettime syscall and 32-bit time_t"
|
|
-#endif
|
|
+ if (clock_gettime(CLOCK_MONOTONIC, ts))
|
|
bb_error_msg_and_die("clock_gettime(MONOTONIC) failed");
|
|
}
|
|
unsigned long long FAST_FUNC monotonic_ns(void)
|
|
--- a/runit/runsv.c
|
|
+++ b/runit/runsv.c
|
|
@@ -51,18 +51,9 @@ ADVISED OF THE POSSIBILITY OF SUCH DAMAG
|
|
#if ENABLE_MONOTONIC_SYSCALL
|
|
#include <sys/syscall.h>
|
|
|
|
-/* libc has incredibly messy way of doing this,
|
|
- * typically requiring -lrt. We just skip all this mess */
|
|
static void gettimeofday_ns(struct timespec *ts)
|
|
{
|
|
-#if defined(__NR_clock_gettime)
|
|
- syscall(__NR_clock_gettime, CLOCK_REALTIME, ts);
|
|
-#elif __TIMESIZE == 64
|
|
- syscall(__NR_clock_gettime64, CLOCK_REALTIME, ts);
|
|
-#else
|
|
-# error "We currently don't support architectures without " \
|
|
- "the __NR_clock_gettime syscall and 32-bit time_t"
|
|
-#endif
|
|
+ clock_gettime(CLOCK_REALTIME, ts);
|
|
}
|
|
#else
|
|
static void gettimeofday_ns(struct timespec *ts)
|