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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2024-01-18 10:18:01 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2024-04-02 15:28:36 -0300
commita4ed0471d71739928a0d0fa3258b3ff3b158e9b9 (patch)
treedb8118e3d4c787cdae80d343bb40bb7fc7ed2926 /posix
parenta0698a5e92ceeed3409d28623b1d599da6bc887d (diff)
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Always define __USE_TIME_BITS64 when 64 bit time_t is used
It was raised on libc-help [1] that some Linux kernel interfaces expect
the libc to define __USE_TIME_BITS64 to indicate the time_t size for the
kABI.  Different than defined by the initial y2038 design document [2],
the __USE_TIME_BITS64 is only defined for ABIs that support more than
one time_t size (by defining the _TIME_BITS for each module).

The 64 bit time_t redirects are now enabled using a different internal
define (__USE_TIME64_REDIRECTS). There is no expected change in semantic
or code generation.

Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, and
arm-linux-gnueabi

[1] https://sourceware.org/pipermail/libc-help/2024-January/006557.html
[2] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign

Reviewed-by: DJ Delorie <dj@redhat.com>
Diffstat (limited to 'posix')
-rw-r--r--posix/glob.h4
-rw-r--r--posix/sched.h2
-rw-r--r--posix/sys/wait.h4
3 files changed, 5 insertions, 5 deletions
diff --git a/posix/glob.h b/posix/glob.h
index 3406662840..b6bba0fbcd 100644
--- a/posix/glob.h
+++ b/posix/glob.h
@@ -150,7 +150,7 @@ extern int glob (const char *__restrict __pattern, int __flags,
 /* Free storage allocated in PGLOB by a previous `glob' call.  */
 extern void globfree (glob_t *__pglob) __THROW;
 #else
-# ifdef __USE_TIME_BITS64
+# ifdef __USE_TIME64_REDIRECTS
 extern int __REDIRECT_NTHNL (glob, (const char *__restrict __pattern,
 				    int __flags,
 				    int (*__errfunc) (const char *, int),
@@ -170,7 +170,7 @@ extern void __REDIRECT_NTH (globfree, (glob_t *__pglob), globfree64);
 #endif
 
 #ifdef __USE_LARGEFILE64
-# ifdef __USE_TIME_BITS64
+# ifdef __USE_TIME64_REDIRECTS
 extern int __REDIRECT_NTHNL (glob64, (const char *__restrict __pattern,
 				      int __flags,
 				      int (*__errfunc) (const char *, int),
diff --git a/posix/sched.h b/posix/sched.h
index 3eac206f35..49f504a488 100644
--- a/posix/sched.h
+++ b/posix/sched.h
@@ -74,7 +74,7 @@ extern int sched_get_priority_max (int __algorithm) __THROW;
 extern int sched_get_priority_min (int __algorithm) __THROW;
 
 /* Get the SCHED_RR interval for the named process.  */
-#ifndef __USE_TIME_BITS64
+#ifndef __USE_TIME64_REDIRECTS
 extern int sched_rr_get_interval (__pid_t __pid, struct timespec *__t) __THROW;
 #else
 # ifdef __REDIRECT_NTH
diff --git a/posix/sys/wait.h b/posix/sys/wait.h
index edbb7b4392..1f44ee1145 100644
--- a/posix/sys/wait.h
+++ b/posix/sys/wait.h
@@ -139,7 +139,7 @@ struct rusage;
    nil, store information about the child's resource usage there.  If the
    WUNTRACED bit is set in OPTIONS, return status for stopped children;
    otherwise don't.  */
-# ifndef __USE_TIME_BITS64
+# ifndef __USE_TIME64_REDIRECTS
 extern __pid_t wait3 (int *__stat_loc, int __options,
 		      struct rusage * __usage) __THROWNL;
 # else
@@ -154,7 +154,7 @@ extern __pid_t __REDIRECT_NTHNL (wait3, (int *__stat_loc, int __options,
 #endif
 
 #ifdef __USE_MISC
-# ifndef __USE_TIME_BITS64
+# ifndef __USE_TIME64_REDIRECTS
 /* PID is like waitpid.  Other args are like wait3.  */
 extern __pid_t wait4 (__pid_t __pid, int *__stat_loc, int __options,
 		      struct rusage *__usage) __THROWNL;