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Message-Id: <1444856371-26319-2-git-send-email-amanieu@gmail.com>
Date: Wed, 14 Oct 2015 21:59:11 +0100
From: Amanieu d'Antras <amanieu@...il.com>
To: linux-kernel@...r.kernel.org
Cc: Oleg Nesterov <oleg@...hat.com>,
Andrew Morton <akpm@...ux-foundation.org>,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, x86@...nel.org,
Brian Gerst <brgerst@...il.com>,
Amanieu d'Antras <amanieu@...il.com>
Subject: [PATCH 01/20] compat: Add generic compat_siginfo_t
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 <amanieu@...il.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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