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| author | Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr> | 2017-09-06 10:00:42 +0200 |
|---|---|---|
| committer | Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr> | 2018-10-24 12:53:27 +0200 |
| commit | 3500dd283b8e5d8a4916423855514cdbfee36eac (patch) | |
| tree | 1a4a7a09096f94d446db94617b86b5b10ebe4ea7 /include/features.h | |
| parent | f1869e11225d9aa054fb11474887d8f109af0949 (diff) | |
| download | glibc-3500dd283b8e5d8a4916423855514cdbfee36eac.tar glibc-3500dd283b8e5d8a4916423855514cdbfee36eac.tar.gz glibc-3500dd283b8e5d8a4916423855514cdbfee36eac.tar.bz2 glibc-3500dd283b8e5d8a4916423855514cdbfee36eac.zip | |
Y2038: add _TIME_BITS supportaaribaud/y2038
This makes all previously defined Y2038-proof API types, functions and
implementations the default when _TIME_BITS==64 and __WORDSIZE==32 (so
that 64-bit architectures are unaffected).
Note: it is assumed that the API is consistent, i.e. for each API type
which is enabled here, all API functions which depend on this type are
enabled and mapped to Y2038-proof implementations.
Diffstat (limited to 'include/features.h')
| -rw-r--r-- | include/features.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/features.h b/include/features.h index 5bed0a4996..47eb58b825 100644 --- a/include/features.h +++ b/include/features.h @@ -364,6 +364,25 @@ # define __USE_FILE_OFFSET64 1 #endif +/* we need to know the word size in order to check the time size */ +#include <bits/wordsize.h> + +#if defined _TIME_BITS +# if _TIME_BITS == 64 +# if ! defined(_FILE_OFFSET_BITS) || _FILE_OFFSET_BITS != 64 +# error _TIME_BIT==64 is allowed only when _FILE_OFFSET_BITS==64 +# elif __WORDSIZE == 32 +# define __USE_TIME_BITS64 1 +# endif +# elif __TIME_BITS == 32 +# if __WORDSIZE > 32 +# error __TIME_BITS=32 is not compatible with __WORDSIZE > 32 +# endif +# else +# error Invalid _TIME_BITS value (can only be 32 or 64) +# endif +#endif + #if defined _DEFAULT_SOURCE # define __USE_MISC 1 #endif |