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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 /signal
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 'signal')
-rw-r--r--signal/signal.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/signal/signal.h b/signal/signal.h
index f37499ce60..8e07b041b1 100644
--- a/signal/signal.h
+++ b/signal/signal.h
@@ -269,7 +269,7 @@ extern int sigwaitinfo (const sigset_t *__restrict __set,
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-#  ifndef __USE_TIME_BITS64
+#  ifndef __USE_TIME64_REDIRECTS
 extern int sigtimedwait (const sigset_t *__restrict __set,
 			 siginfo_t *__restrict __info,
 			 const struct timespec *__restrict __timeout)