From 38143339646a4ccce8afe298c34467767c899f51 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Fri, 2 Aug 2019 15:41:27 -0400 Subject: switch all existing 32-bit archs to 64-bit time_t this commit preserves ABI fully for existing interface boundaries between libc and libc consumers (applications or libraries), by retaining existing symbol names for the legacy 32-bit interfaces and redirecting sources compiled against the new headers to alternate symbol names. this does not necessarily, however, preserve the pairwise ABI of libc consumers with one another; where they use time_t-derived types in their interfaces with one another, it may be necessary to synchronize updates with each other. the intent is that ABI resulting from this commit already be stable and permanent, but it will not be officially so until a release is made. changes to some header-defined types that do not play any role in the ABI between libc and its consumers may still be subject to change. mechanically, the changes made by this commit for each 32-bit arch are as follows: - _REDIR_TIME64 is defined to activate the symbol redirections in public headers - COMPAT_SRC_DIRS is defined in arch.mak to activate build of ABI compat shims to serve as definitions for the original symbol names - time_t and suseconds_t definitions are changed to long long (64-bit) - IPC_STAT definition is changed to add the IPC_TIME64 bit (0x100), triggering conversion of semid_ds, shmid_ds, and msqid_ds split low/high time bits into new time_t members - structs semid_ds, shmid_ds, msqid_ds, and stat are modified to add new 64-bit time_t/timespec members at the end, maintaining existing layout of other members. - socket options (SO_*) and ioctl (sockios) command macros are redefined to use the kernel's "_NEW" values. in addition, on archs where vdso clock_gettime is used, the VDSO_CGT_SYM macro definition in syscall_arch.h is changed to use a new time64 vdso function if available, and a new VDSO_CGT32_SYM macro is added for use as fallback on kernels lacking time64. --- arch/or1k/bits/stat.h | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'arch/or1k/bits/stat.h') diff --git a/arch/or1k/bits/stat.h b/arch/or1k/bits/stat.h index ce6a6bd0..cde3fd02 100644 --- a/arch/or1k/bits/stat.h +++ b/arch/or1k/bits/stat.h @@ -14,8 +14,12 @@ struct stat { blksize_t st_blksize; int __st_blksize_padding; blkcnt_t st_blocks; - struct timespec st_atim; - struct timespec st_mtim; - struct timespec st_ctim; + struct { + long tv_sec; + long tv_nsec; + } __st_atim32, __st_mtim32, __st_ctim32; unsigned __unused[2]; + struct timespec st_atim; + struct timespec st_mtim; + struct timespec st_ctim; }; -- cgit v1.2.1