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MIPS: Clean up compat_siginfo_t 

While mips can't use the generic compat_siginfo_t directly because
its si_code and si_errno are inverted, we can still make it as
close to the generic version as possible. This makes it easier
to update when new members are added to siginfo_t.

The main changes are adding a missing _sigsys union member and
eliminating the unused _irix_sigchld one.

Signed-off-by: Amanieu d'Antras <amanieu@gmail.com>
Cc: linux-kernel@vger.kernel.org
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11455/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
hifive-unleashed-5.1
Amanieu d'Antras 2015-11-05 00:50:24 +00:00 committed by Ralf Baechle
parent 22b1452399
commit d00d920338
1 changed files with 40 additions and 34 deletions
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74
arch/mips/include/asm/compat.h
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@ -130,6 +130,8 @@ typedef union compat_sigval {
compat_uptr_t sival_ptr;
} compat_sigval_t;
/* Can't use the generic version because si_code and si_errno are swapped */
#define SI_PAD_SIZE32 (128/sizeof(int) - 3)
typedef struct compat_siginfo {
@ -138,57 +140,61 @@ typedef struct compat_siginfo {
int si_errno;
union {
int _pad[SI_PAD_SIZE32];
int _pad[128 / sizeof(int) - 3];
/* kill() */
struct {
compat_pid_t _pid; /* sender's pid */
__compat_uid_t _uid; /* sender's uid */
__compat_uid32_t _uid; /* sender's uid */
} _kill;
/* SIGCHLD */
struct {
compat_pid_t _pid; /* which child */
__compat_uid_t _uid; /* sender's uid */
int _status; /* exit code */
compat_clock_t _utime;
compat_clock_t _stime;
} _sigchld;
/* IRIX SIGCHLD */
struct {
compat_pid_t _pid; /* which child */
compat_clock_t _utime;
int _status; /* exit code */
compat_clock_t _stime;
} _irix_sigchld;
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
struct {
s32 _addr; /* faulting insn/memory ref. */
} _sigfault;
/* SIGPOLL, SIGXFSZ (To do ...) */
struct {
int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
int _fd;
} _sigpoll;
/* POSIX.1b timers */
struct {
timer_t _tid; /* timer id */
compat_timer_t _tid; /* timer id */
int _overrun; /* overrun count */
compat_sigval_t _sigval;/* same as below */
int _sys_private; /* not to be passed to user */
compat_sigval_t _sigval; /* same as below */
} _timer;
/* POSIX.1b signals */
struct {
compat_pid_t _pid; /* sender's pid */
__compat_uid_t _uid; /* sender's uid */
__compat_uid32_t _uid; /* sender's uid */
compat_sigval_t _sigval;
} _rt;
/* SIGCHLD */
struct {
compat_pid_t _pid; /* which child */
__compat_uid32_t _uid; /* sender's uid */
int _status; /* exit code */
compat_clock_t _utime;
compat_clock_t _stime;
} _sigchld;
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
struct {
compat_uptr_t _addr; /* faulting insn/memory ref. */
#ifdef __ARCH_SI_TRAPNO
int _trapno; /* TRAP # which caused the signal */
#endif
short _addr_lsb; /* LSB of the reported address */
struct {
compat_uptr_t _lower;
compat_uptr_t _upper;
} _addr_bnd;
} _sigfault;
/* SIGPOLL */
struct {
compat_long_t _band; /* POLL_IN, POLL_OUT, POLL_MSG */
int _fd;
} _sigpoll;
struct {
compat_uptr_t _call_addr; /* calling insn */
int _syscall; /* triggering system call number */
compat_uint_t _arch; /* AUDIT_ARCH_* of syscall */
} _sigsys;
} _sifields;
} compat_siginfo_t;