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Interpose clock_gettime64

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Since debian generally added 64-bit time support on 32-bit
arches, now glibc sometimes calls the clock_gettime64 syscall
(and library wrapper).  This function was missing, and is added here.

Patch originally supplied here
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1064555
This commit is contained in:
Helge Deller
2025-01-12 22:23:16 +00:00
committed by Ian Jackson
parent 92c322507c
commit 536889d797
2 changed files with 25 additions and 1 deletions
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24
src/libfaketime.c
View File

@@ -164,6 +164,13 @@ struct utimbuf {
#include <sys/random.h>
#endif
/* __timespec64 is needed for clock_gettime64 on 32-bit architectures */
struct __timespec64
{
uint64_t tv_sec; /* Seconds */
uint64_t tv_nsec; /* Nanoseconds */
};
/*
* Per thread variable, which we turn on inside real_* calls to avoid modifying
* time multiple times of for the whole process to prevent faking time
@@ -201,6 +208,7 @@ static time_t (*real_time) (time_t *);
static int (*real_ftime) (struct timeb *);
static int (*real_gettimeofday) (struct timeval *, void *);
static int (*real_clock_gettime) (clockid_t clk_id, struct timespec *tp);
static int (*real_clock_gettime64) (clockid_t clk_id, struct __timespec64 *tp);
#ifdef TIME_UTC
static int (*real_timespec_get) (struct timespec *ts, int base);
#endif
@@ -2417,6 +2425,17 @@ int clock_gettime(clockid_t clk_id, struct timespec *tp)
return result;
}
/* this is used by 32-bit architectures only */
int __clock_gettime64(clockid_t clk_id, struct __timespec64 *tp64)
{
struct timespec tp;
int result;
result = clock_gettime(clk_id, &tp);
tp64->tv_sec = tp.tv_sec;
tp64->tv_nsec = tp.tv_nsec;
return result;
}
#ifdef TIME_UTC
#ifdef MACOS_DYLD_INTERPOSE
@@ -2760,6 +2779,11 @@ static void ftpl_really_init(void)
{
real_clock_gettime = dlsym(RTLD_NEXT, "clock_gettime");
}
real_clock_gettime64 = dlsym(RTLD_NEXT, "clock_gettime64");
if (NULL == real_clock_gettime64)
{
real_clock_gettime64 = dlsym(RTLD_NEXT, "__clock_gettime64");
}
#ifdef FAKE_TIMERS
#if defined(__sun)
real_timer_gettime_233 = dlsym(RTLD_NEXT, "timer_gettime");

2
test/Makefile
View File

@@ -1,6 +1,6 @@
CC = gcc
CFLAGS += -std=gnu99 -Wall -DFAKE_STAT -Werror -Wextra $(FAKETIME_COMPILE_CFLAGS)
CFLAGS += -std=gnu99 -Wall -DFAKE_STAT -Werror -Wextra $(FAKETIME_COMPILE_CFLAGS) -U_FILE_OFFSET_BITS -U_TIME_BITS
LDFLAGS += -lrt -lpthread
SRC = timetest.c