path: root/arch/mips/bits
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authorRich Felker <>2019-08-02 15:41:27 -0400
committerRich Felker <>2019-11-02 18:30:56 -0400
commit38143339646a4ccce8afe298c34467767c899f51 (patch)
treea5eb879534856a4c13a7c7dfbb69f91713a08140 /arch/mips/bits
parent5127927f4ba449aff16f6a6db0224a24490ff5b9 (diff)
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.
Diffstat (limited to 'arch/mips/bits')
8 files changed, 50 insertions, 32 deletions
diff --git a/arch/mips/bits/ b/arch/mips/bits/
index 9544b496..32544cfe 100644
--- a/arch/mips/bits/
+++ b/arch/mips/bits/
@@ -1,3 +1,4 @@
+#define _REDIR_TIME64 1
#define _Addr int
#define _Int64 long long
#define _Reg int
@@ -19,5 +20,5 @@ TYPEDEF double double_t;
TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
-TYPEDEF long time_t;
-TYPEDEF long suseconds_t;
+TYPEDEF long long time_t;
+TYPEDEF long long suseconds_t;
diff --git a/arch/mips/bits/ioctl.h b/arch/mips/bits/ioctl.h
index e277c3f0..e20bf19e 100644
--- a/arch/mips/bits/ioctl.h
+++ b/arch/mips/bits/ioctl.h
@@ -110,5 +110,5 @@
#define SIOCATMARK _IOR('s', 7, int)
#define SIOCSPGRP _IOW('s', 8, pid_t)
#define SIOCGPGRP _IOR('s', 9, pid_t)
-#define SIOCGSTAMP 0x8906
-#define SIOCGSTAMPNS 0x8907
+#define SIOCGSTAMP _IOR(0x89, 6, char[16])
+#define SIOCGSTAMPNS _IOR(0x89, 7, char[16])
diff --git a/arch/mips/bits/ipcstat.h b/arch/mips/bits/ipcstat.h
index 0018ad1e..4f4fcb0c 100644
--- a/arch/mips/bits/ipcstat.h
+++ b/arch/mips/bits/ipcstat.h
@@ -1 +1 @@
-#define IPC_STAT 2
+#define IPC_STAT 0x102
diff --git a/arch/mips/bits/msg.h b/arch/mips/bits/msg.h
index f28aece8..c734dbb5 100644
--- a/arch/mips/bits/msg.h
+++ b/arch/mips/bits/msg.h
@@ -1,19 +1,19 @@
struct msqid_ds {
struct ipc_perm msg_perm;
#if _MIPSEL || __MIPSEL || __MIPSEL__
- time_t msg_stime;
- int __unused1;
- time_t msg_rtime;
- int __unused2;
- time_t msg_ctime;
- int __unused3;
+ unsigned long __msg_stime_lo;
+ unsigned long __msg_stime_hi;
+ unsigned long __msg_rtime_lo;
+ unsigned long __msg_rtime_hi;
+ unsigned long __msg_ctime_lo;
+ unsigned long __msg_ctime_hi;
- int __unused1;
- time_t msg_stime;
- int __unused2;
- time_t msg_rtime;
- int __unused3;
- time_t msg_ctime;
+ unsigned long __msg_stime_hi;
+ unsigned long __msg_stime_lo;
+ unsigned long __msg_rtime_hi;
+ unsigned long __msg_rtime_lo;
+ unsigned long __msg_ctime_hi;
+ unsigned long __msg_ctime_lo;
unsigned long msg_cbytes;
msgqnum_t msg_qnum;
@@ -21,4 +21,7 @@ struct msqid_ds {
pid_t msg_lspid;
pid_t msg_lrpid;
unsigned long __unused[2];
+ time_t msg_stime;
+ time_t msg_rtime;
+ time_t msg_ctime;
diff --git a/arch/mips/bits/sem.h b/arch/mips/bits/sem.h
index 5184eb59..fe6f0948 100644
--- a/arch/mips/bits/sem.h
+++ b/arch/mips/bits/sem.h
@@ -1,7 +1,7 @@
struct semid_ds {
struct ipc_perm sem_perm;
- time_t sem_otime;
- time_t sem_ctime;
+ unsigned long __sem_otime_lo;
+ unsigned long __sem_ctime_lo;
unsigned short sem_nsems;
char __sem_nsems_pad[sizeof(long)-sizeof(short)];
@@ -9,6 +9,8 @@ struct semid_ds {
char __sem_nsems_pad[sizeof(long)-sizeof(short)];
unsigned short sem_nsems;
- long __unused3;
- long __unused4;
+ unsigned long __sem_otime_hi;
+ unsigned long __sem_ctime_hi;
+ time_t sem_otime;
+ time_t sem_ctime;
diff --git a/arch/mips/bits/shm.h b/arch/mips/bits/shm.h
index 8d193781..ab8c642d 100644
--- a/arch/mips/bits/shm.h
+++ b/arch/mips/bits/shm.h
@@ -3,14 +3,19 @@
struct shmid_ds {
struct ipc_perm shm_perm;
size_t shm_segsz;
- time_t shm_atime;
- time_t shm_dtime;
- time_t shm_ctime;
+ unsigned long __shm_atime_lo;
+ unsigned long __shm_dtime_lo;
+ unsigned long __shm_ctime_lo;
pid_t shm_cpid;
pid_t shm_lpid;
unsigned long shm_nattch;
- unsigned long __pad1;
- unsigned long __pad2;
+ unsigned short __shm_atime_hi;
+ unsigned short __shm_dtime_hi;
+ unsigned short __shm_ctime_hi;
+ unsigned short __pad1;
+ time_t shm_atime;
+ time_t shm_dtime;
+ time_t shm_ctime;
struct shminfo {
diff --git a/arch/mips/bits/socket.h b/arch/mips/bits/socket.h
index 92551b9f..4ffc4d4a 100644
--- a/arch/mips/bits/socket.h
+++ b/arch/mips/bits/socket.h
@@ -16,13 +16,16 @@
#define SO_RCVBUF 0x1002
#define SO_SNDLOWAT 0x1003
#define SO_RCVLOWAT 0x1004
-#define SO_RCVTIMEO 0x1006
-#define SO_SNDTIMEO 0x1005
#define SO_ERROR 0x1007
#define SO_TYPE 0x1008
#define SO_ACCEPTCONN 0x1009
#define SO_PROTOCOL 0x1028
#define SO_DOMAIN 0x1029
+#define SO_TIMESTAMP 63
+#define SO_TIMESTAMPNS 64
+#define SO_RCVTIMEO 66
+#define SO_SNDTIMEO 67
#define SO_NO_CHECK 11
#define SO_PRIORITY 12
diff --git a/arch/mips/bits/stat.h b/arch/mips/bits/stat.h
index 3291a636..48d4ac80 100644
--- a/arch/mips/bits/stat.h
+++ b/arch/mips/bits/stat.h
@@ -12,11 +12,15 @@ struct stat {
dev_t st_rdev;
long __st_padding2[2];
off_t st_size;
- 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;
blksize_t st_blksize;
long __st_padding3;
blkcnt_t st_blocks;
- long __st_padding4[14];
+ struct timespec st_atim;
+ struct timespec st_mtim;
+ struct timespec st_ctim;
+ long __st_padding4[2];