This matches the normal siginfo_t as closely as possible, unlike
some architecture-specific versions which are missing some fields.

Signed-off-by: Amanieu d'Antras <aman...@gmail.com>
---
 arch/arm64/include/asm/compat.h   |  2 ++
 arch/mips/include/asm/compat.h    |  1 +
 arch/parisc/include/asm/compat.h  |  2 ++
 arch/powerpc/include/asm/compat.h |  1 +
 arch/s390/include/asm/compat.h    |  2 ++
 arch/sparc/include/asm/compat.h   |  1 +
 arch/tile/include/asm/compat.h    |  1 +
 arch/x86/include/asm/compat.h     |  2 ++
 include/linux/compat.h            | 66 ++++++++++++++++++++++++++++++++++++++-
 9 files changed, 77 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index 7fbed69..ff4e294 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -155,6 +155,8 @@ typedef union compat_sigval {
        compat_uptr_t   sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
+
 typedef struct compat_siginfo {
        int si_signo;
        int si_errno;
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index c4bd54a..5f1f816 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -130,6 +130,7 @@ typedef union compat_sigval {
        compat_uptr_t   sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
 #define SI_PAD_SIZE32  (128/sizeof(int) - 3)
 
 typedef struct compat_siginfo {
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 94710cf..e0be05f 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -134,6 +134,8 @@ typedef union compat_sigval {
        compat_uptr_t   sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
+
 typedef struct compat_siginfo {
        int si_signo;
        int si_errno;
diff --git a/arch/powerpc/include/asm/compat.h 
b/arch/powerpc/include/asm/compat.h
index 4f2df58..75b25ff 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -124,6 +124,7 @@ typedef union compat_sigval {
        compat_uptr_t   sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
 #define SI_PAD_SIZE32  (128/sizeof(int) - 3)
 
 typedef struct compat_siginfo {
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index d350ed9..ac73ac7 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -192,6 +192,8 @@ typedef union compat_sigval {
        compat_uptr_t   sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
+
 typedef struct compat_siginfo {
        int     si_signo;
        int     si_errno;
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index 830502fe..0c80f59 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -153,6 +153,7 @@ typedef union compat_sigval {
        compat_uptr_t   sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
 #define SI_PAD_SIZE32  (128/sizeof(int) - 3)
 
 typedef struct compat_siginfo {
diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index c14e36f..f9bba8d 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -115,6 +115,7 @@ typedef union compat_sigval {
        compat_uptr_t   sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
 #define COMPAT_SI_PAD_SIZE     (128/sizeof(int) - 3)
 
 typedef struct compat_siginfo {
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index acdee09..69176b4 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -130,6 +130,8 @@ typedef union compat_sigval {
        compat_uptr_t   sival_ptr;
 } compat_sigval_t;
 
+#define HAVE_ARCH_COMPAT_SIGINFO_T
+
 typedef struct compat_siginfo {
        int si_signo;
        int si_errno;
diff --git a/include/linux/compat.h b/include/linux/compat.h
index a76c917..9c88b86 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -196,7 +196,71 @@ struct compat_rusage {
 extern int put_compat_rusage(const struct rusage *,
                             struct compat_rusage __user *);
 
-struct compat_siginfo;
+#ifndef HAVE_ARCH_COMPAT_SIGINFO_T
+typedef struct compat_siginfo {
+       int si_signo;
+       int si_errno;
+       int si_code;
+
+       union {
+               int _pad[128 / sizeof(int) - 3];
+
+               /* kill() */
+               struct {
+                       compat_pid_t _pid;      /* sender's pid */
+                       compat_uid_t _uid;      /* sender's uid */
+               } _kill;
+
+               /* POSIX.1b timers */
+               struct {
+                       compat_timer_t _tid;    /* timer id */
+                       int _overrun;           /* overrun count */
+                       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_sigval_t _sigval;
+               } _rt;
+
+               /* 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;
+
+               /* 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;
+#endif
 
 extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
                struct compat_siginfo __user *, int,
-- 
2.6.1

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