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| author | Florian Weimer <fweimer@redhat.com> | 2024-05-18 09:33:19 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2024-05-18 09:33:19 +0200 |
| commit | 8d7b6b4cb27d4dec1dd5f7960298c1699275f962 (patch) | |
| tree | d3233e6a49dbde86dee8ea46920714a1adbbddb7 /sysdeps/unix/sysv/linux/net | |
| parent | 2a99e2398d9d717c034e915f7846a49e623f5450 (diff) | |
| download | glibc-8d7b6b4cb27d4dec1dd5f7960298c1699275f962.tar.gz glibc-8d7b6b4cb27d4dec1dd5f7960298c1699275f962.tar.xz glibc-8d7b6b4cb27d4dec1dd5f7960298c1699275f962.zip | |
socket: Use may_alias on sockaddr structs (bug 19622)
This supports common coding patterns. The GCC C front end before version 7 rejects the may_alias attribute on a struct definition if it was not present in a previous forward declaration, so this attribute can only be conditionally applied. This implements the spirit of the change in Austin Group issue 1641. Suggested-by: Marek Polacek <polacek@redhat.com> Suggested-by: Jakub Jelinek <jakub@redhat.com> Reviewed-by: Sam James <sam@gentoo.org> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/net')
| -rw-r--r-- | sysdeps/unix/sysv/linux/net/if_packet.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/net/if_packet.h b/sysdeps/unix/sysv/linux/net/if_packet.h index 9ffb69b508..c17e1c23c5 100644 --- a/sysdeps/unix/sysv/linux/net/if_packet.h +++ b/sysdeps/unix/sysv/linux/net/if_packet.h @@ -26,7 +26,7 @@ From Linux 2.1 the AF_PACKET interface is preferred and you should consider using it in place of this one. */ -struct sockaddr_pkt +struct __attribute_struct_may_alias__ sockaddr_pkt { __SOCKADDR_COMMON (spkt_); unsigned char spkt_device[14]; |