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| author | Florian Weimer <fweimer@redhat.com> | 2015-04-02 10:07:04 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2015-04-02 19:55:21 +0200 |
| commit | 37d60d970c342b7f21a173a363c8be6558ad6e6e (patch) | |
| tree | 0ddd5469e71091ac033a1f64678a756c95c0e52c | |
| parent | b763f6ae859ecea70a5dacb8ad45c71d5f667e2e (diff) | |
Define libc_max_align_t for internal use
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | include/libc-internal.h | 9 |
2 files changed, 13 insertions, 0 deletions
@@ -1,3 +1,7 @@ +2015-04-02 Florian Weimer <fweimer@redhat.com> + + * include/libc-internal.h (libc_max_align_t): Define. + 2015-04-02 Andreas Schwab <schwab@suse.de> [BZ #16850] diff --git a/include/libc-internal.h b/include/libc-internal.h index bca59a4614..b37388ecd7 100644 --- a/include/libc-internal.h +++ b/include/libc-internal.h @@ -107,4 +107,13 @@ extern void __init_misc (int, char **, char **); #define DIAG_IGNORE_NEEDS_COMMENT(version, option) \ _Pragma (_DIAG_STR (GCC diagnostic ignored option)) +/* This mirrors the C11 max_align_t type provided by GCC, but it is + also available in C99 mode. The aligned attributes are required + because some ABIs have reduced alignment requirements for struct + and union members. */ +typedef struct { + long long ll __attribute__ ((__aligned__ (__alignof__ (long long)))); + long double ld __attribute__ ((__aligned__ (__alignof__ (long double)))); +} libc_max_align_t; + #endif /* _LIBC_INTERNAL */ |