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-rw-r--r--include/linux/compat.h100
-rw-r--r--include/linux/mm.h4
-rw-r--r--include/linux/sched/signal.h28
-rw-r--r--include/linux/signal.h15
-rw-r--r--include/uapi/asm-generic/siginfo.h109
5 files changed, 220 insertions, 36 deletions
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 0fc36406f32c..8a9643857c4a 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -157,6 +157,104 @@ struct compat_sigaction {
compat_sigset_t sa_mask __packed;
};
+typedef union compat_sigval {
+ compat_int_t sival_int;
+ compat_uptr_t sival_ptr;
+} compat_sigval_t;
+
+typedef struct compat_siginfo {
+ int si_signo;
+#ifndef __ARCH_HAS_SWAPPED_SIGINFO
+ int si_errno;
+ int si_code;
+#else
+ int si_code;
+ int si_errno;
+#endif
+
+ union {
+ int _pad[128/sizeof(int) - 3];
+
+ /* kill() */
+ struct {
+ compat_pid_t _pid; /* sender's pid */
+ __compat_uid32_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_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;
+
+#ifdef CONFIG_X86_X32_ABI
+ /* SIGCHLD (x32 version) */
+ struct {
+ compat_pid_t _pid; /* which child */
+ __compat_uid32_t _uid; /* sender's uid */
+ int _status; /* exit code */
+ compat_s64 _utime;
+ compat_s64 _stime;
+ } _sigchld_x32;
+#endif
+
+ /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */
+ struct {
+ compat_uptr_t _addr; /* faulting insn/memory ref. */
+#ifdef __ARCH_SI_TRAPNO
+ int _trapno; /* TRAP # which caused the signal */
+#endif
+ union {
+ /*
+ * used when si_code=BUS_MCEERR_AR or
+ * used when si_code=BUS_MCEERR_AO
+ */
+ short int _addr_lsb; /* Valid LSB of the reported address. */
+ /* used when si_code=SEGV_BNDERR */
+ struct {
+ short _dummy_bnd;
+ compat_uptr_t _lower;
+ compat_uptr_t _upper;
+ } _addr_bnd;
+ /* used when si_code=SEGV_PKUERR */
+ struct {
+ short _dummy_pkey;
+ u32 _pkey;
+ } _addr_pkey;
+ };
+ } _sigfault;
+
+ /* SIGPOLL */
+ struct {
+ compat_long_t _band; /* POLL_IN, POLL_OUT, POLL_MSG */
+ int _fd;
+ } _sigpoll;
+
+ struct {
+ compat_uptr_t _call_addr; /* calling user insn */
+ int _syscall; /* triggering system call number */
+ unsigned int _arch; /* AUDIT_ARCH_* of syscall */
+ } _sigsys;
+ } _sifields;
+} compat_siginfo_t;
+
/*
* These functions operate on 32- or 64-bit specs depending on
* COMPAT_USE_64BIT_TIME, hence the void user pointer arguments.
@@ -412,7 +510,7 @@ long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
unsigned long bitmap_size);
long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
unsigned long bitmap_size);
-int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
+int copy_siginfo_from_user32(siginfo_t *to, const struct compat_siginfo __user *from);
int copy_siginfo_to_user32(struct compat_siginfo __user *to, const siginfo_t *from);
int get_compat_sigevent(struct sigevent *event,
const struct compat_sigevent __user *u_event);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index ea818ff739cd..7fc92384977e 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2570,8 +2570,8 @@ enum mf_flags {
MF_MUST_KILL = 1 << 2,
MF_SOFT_OFFLINE = 1 << 3,
};
-extern int memory_failure(unsigned long pfn, int trapno, int flags);
-extern void memory_failure_queue(unsigned long pfn, int trapno, int flags);
+extern int memory_failure(unsigned long pfn, int flags);
+extern void memory_failure_queue(unsigned long pfn, int flags);
extern int unpoison_memory(unsigned long pfn);
extern int get_hwpoison_page(struct page *page);
#define put_hwpoison_page(page) put_page(page)
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 0aa4548fb492..23b4f9cb82db 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -285,6 +285,34 @@ static inline void kernel_signal_stop(void)
schedule();
}
+#ifdef __ARCH_SI_TRAPNO
+# define ___ARCH_SI_TRAPNO(_a1) , _a1
+#else
+# define ___ARCH_SI_TRAPNO(_a1)
+#endif
+#ifdef __ia64__
+# define ___ARCH_SI_IA64(_a1, _a2, _a3) , _a1, _a2, _a3
+#else
+# define ___ARCH_SI_IA64(_a1, _a2, _a3)
+#endif
+
+int force_sig_fault(int sig, int code, void __user *addr
+ ___ARCH_SI_TRAPNO(int trapno)
+ ___ARCH_SI_IA64(int imm, unsigned int flags, unsigned long isr)
+ , struct task_struct *t);
+int send_sig_fault(int sig, int code, void __user *addr
+ ___ARCH_SI_TRAPNO(int trapno)
+ ___ARCH_SI_IA64(int imm, unsigned int flags, unsigned long isr)
+ , struct task_struct *t);
+
+int force_sig_mceerr(int code, void __user *, short, struct task_struct *);
+int send_sig_mceerr(int code, void __user *, short, struct task_struct *);
+
+int force_sig_bnderr(void __user *addr, void __user *lower, void __user *upper);
+int force_sig_pkuerr(void __user *addr, u32 pkey);
+
+int force_sig_ptrace_errno_trap(int errno, void __user *addr);
+
extern int send_sig_info(int, struct siginfo *, struct task_struct *);
extern int force_sigsegv(int, struct task_struct *);
extern int force_sig_info(int, struct siginfo *, struct task_struct *);
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 042968dd98f0..a9bc7e1b077e 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -11,13 +11,14 @@ struct task_struct;
/* for sysctl */
extern int print_fatal_signals;
-static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
+static inline void copy_siginfo(struct siginfo *to, const struct siginfo *from)
{
- if (from->si_code < 0)
- memcpy(to, from, sizeof(*to));
- else
- /* _sigchld is currently the largest know union member */
- memcpy(to, from, __ARCH_SI_PREAMBLE_SIZE + sizeof(from->_sifields._sigchld));
+ memcpy(to, from, sizeof(*to));
+}
+
+static inline void clear_siginfo(struct siginfo *info)
+{
+ memset(info, 0, sizeof(*info));
}
int copy_siginfo_to_user(struct siginfo __user *to, const struct siginfo *from);
@@ -29,9 +30,7 @@ enum siginfo_layout {
SIL_FAULT,
SIL_CHLD,
SIL_RT,
-#ifdef __ARCH_SIGSYS
SIL_SYS,
-#endif
};
enum siginfo_layout siginfo_layout(int sig, int si_code);
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index e447283b8f52..254afc31e3be 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -23,10 +23,6 @@ typedef union sigval {
#define SI_PAD_SIZE ((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int))
#endif
-#ifndef __ARCH_SI_UID_T
-#define __ARCH_SI_UID_T __kernel_uid32_t
-#endif
-
/*
* The default "si_band" type is "long", as specified by POSIX.
* However, some architectures want to override this to "int"
@@ -44,12 +40,15 @@ typedef union sigval {
#define __ARCH_SI_ATTRIBUTES
#endif
-#ifndef HAVE_ARCH_SIGINFO_T
-
typedef struct siginfo {
int si_signo;
+#ifndef __ARCH_HAS_SWAPPED_SIGINFO
int si_errno;
int si_code;
+#else
+ int si_code;
+ int si_errno;
+#endif
union {
int _pad[SI_PAD_SIZE];
@@ -57,14 +56,13 @@ typedef struct siginfo {
/* kill() */
struct {
__kernel_pid_t _pid; /* sender's pid */
- __ARCH_SI_UID_T _uid; /* sender's uid */
+ __kernel_uid32_t _uid; /* sender's uid */
} _kill;
/* POSIX.1b timers */
struct {
__kernel_timer_t _tid; /* timer id */
int _overrun; /* overrun count */
- char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
sigval_t _sigval; /* same as below */
int _sys_private; /* not to be passed to user */
} _timer;
@@ -72,34 +70,47 @@ typedef struct siginfo {
/* POSIX.1b signals */
struct {
__kernel_pid_t _pid; /* sender's pid */
- __ARCH_SI_UID_T _uid; /* sender's uid */
+ __kernel_uid32_t _uid; /* sender's uid */
sigval_t _sigval;
} _rt;
/* SIGCHLD */
struct {
__kernel_pid_t _pid; /* which child */
- __ARCH_SI_UID_T _uid; /* sender's uid */
+ __kernel_uid32_t _uid; /* sender's uid */
int _status; /* exit code */
__ARCH_SI_CLOCK_T _utime;
__ARCH_SI_CLOCK_T _stime;
} _sigchld;
- /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+ /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGTRAP, SIGEMT */
struct {
void __user *_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 */
+#ifdef __ia64__
+ int _imm; /* immediate value for "break" */
+ unsigned int _flags; /* see ia64 si_flags */
+ unsigned long _isr; /* isr */
+#endif
union {
+ /*
+ * used when si_code=BUS_MCEERR_AR or
+ * used when si_code=BUS_MCEERR_AO
+ */
+ short _addr_lsb; /* LSB of the reported address */
/* used when si_code=SEGV_BNDERR */
struct {
+ short _dummy_bnd;
void __user *_lower;
void __user *_upper;
} _addr_bnd;
/* used when si_code=SEGV_PKUERR */
- __u32 _pkey;
+ struct {
+ short _dummy_pkey;
+ __u32 _pkey;
+ } _addr_pkey;
};
} _sigfault;
@@ -118,10 +129,6 @@ typedef struct siginfo {
} _sifields;
} __ARCH_SI_ATTRIBUTES siginfo_t;
-/* If the arch shares siginfo, then it has SIGSYS. */
-#define __ARCH_SIGSYS
-#endif
-
/*
* How these fields are to be accessed.
*/
@@ -143,14 +150,12 @@ typedef struct siginfo {
#define si_addr_lsb _sifields._sigfault._addr_lsb
#define si_lower _sifields._sigfault._addr_bnd._lower
#define si_upper _sifields._sigfault._addr_bnd._upper
-#define si_pkey _sifields._sigfault._pkey
+#define si_pkey _sifields._sigfault._addr_pkey._pkey
#define si_band _sifields._sigpoll._band
#define si_fd _sifields._sigpoll._fd
-#ifdef __ARCH_SIGSYS
#define si_call_addr _sifields._sigsys._call_addr
#define si_syscall _sifields._sigsys._syscall
#define si_arch _sifields._sigsys._arch
-#endif
/*
* si_code values
@@ -165,6 +170,7 @@ typedef struct siginfo {
#define SI_SIGIO -5 /* sent by queued SIGIO */
#define SI_TKILL -6 /* sent by tkill system call */
#define SI_DETHREAD -7 /* sent by execve() killing subsidiary threads */
+#define SI_ASYNCNL -60 /* sent by glibc async name lookup completion */
#define SI_FROMUSER(siptr) ((siptr)->si_code <= 0)
#define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0)
@@ -173,14 +179,34 @@ typedef struct siginfo {
* SIGILL si_codes
*/
#define ILL_ILLOPC 1 /* illegal opcode */
+#ifdef __bfin__
+# define ILL_ILLPARAOP 2 /* illegal opcode combine */
+#endif
#define ILL_ILLOPN 2 /* illegal operand */
#define ILL_ILLADR 3 /* illegal addressing mode */
#define ILL_ILLTRP 4 /* illegal trap */
+#ifdef __bfin__
+# define ILL_ILLEXCPT 4 /* unrecoverable exception */
+#endif
#define ILL_PRVOPC 5 /* privileged opcode */
#define ILL_PRVREG 6 /* privileged register */
#define ILL_COPROC 7 /* coprocessor error */
#define ILL_BADSTK 8 /* internal stack error */
-#define NSIGILL 8
+#ifdef __bfin__
+# define ILL_CPLB_VI 9 /* D/I CPLB protect violation */
+# define ILL_CPLB_MISS 10 /* D/I CPLB miss */
+# define ILL_CPLB_MULHIT 11 /* D/I CPLB multiple hit */
+#endif
+#ifdef __tile__
+# define ILL_DBLFLT 9 /* double fault */
+# define ILL_HARDWALL 10 /* user networks hardwall violation */
+#endif
+#ifdef __ia64__
+# define ILL_BADIADDR 9 /* unimplemented instruction address */
+# define __ILL_BREAK 10 /* illegal break */
+# define __ILL_BNDMOD 11 /* bundle-update (modification) in progress */
+#endif
+#define NSIGILL 11
/*
* SIGFPE si_codes
@@ -193,15 +219,33 @@ typedef struct siginfo {
#define FPE_FLTRES 6 /* floating point inexact result */
#define FPE_FLTINV 7 /* floating point invalid operation */
#define FPE_FLTSUB 8 /* subscript out of range */
-#define NSIGFPE 8
+#ifdef __frv__
+# define FPE_MDAOVF 9 /* media overflow */
+#endif
+#ifdef __ia64__
+# define __FPE_DECOVF 9 /* decimal overflow */
+# define __FPE_DECDIV 10 /* decimal division by zero */
+# define __FPE_DECERR 11 /* packed decimal error */
+# define __FPE_INVASC 12 /* invalid ASCII digit */
+# define __FPE_INVDEC 13 /* invalid decimal digit */
+#endif
+#define NSIGFPE 13
/*
* SIGSEGV si_codes
*/
#define SEGV_MAPERR 1 /* address not mapped to object */
#define SEGV_ACCERR 2 /* invalid permissions for mapped object */
-#define SEGV_BNDERR 3 /* failed address bound checks */
-#define SEGV_PKUERR 4 /* failed protection key checks */
+#ifdef __bfin__
+# define SEGV_STACKFLOW 3 /* stack overflow */
+#else
+# define SEGV_BNDERR 3 /* failed address bound checks */
+#endif
+#ifdef __ia64__
+# define __SEGV_PSTKOVF 4 /* paragraph stack overflow */
+#else
+# define SEGV_PKUERR 4 /* failed protection key checks */
+#endif
#define NSIGSEGV 4
/*
@@ -210,8 +254,12 @@ typedef struct siginfo {
#define BUS_ADRALN 1 /* invalid address alignment */
#define BUS_ADRERR 2 /* non-existent physical address */
#define BUS_OBJERR 3 /* object specific hardware error */
+#ifdef __bfin__
+# define BUS_OPFETCH 4 /* error from instruction fetch */
+#else
/* hardware memory error consumed on a machine check: action required */
-#define BUS_MCEERR_AR 4
+# define BUS_MCEERR_AR 4
+#endif
/* hardware memory error detected in process but not consumed: action optional*/
#define BUS_MCEERR_AO 5
#define NSIGBUS 5
@@ -223,9 +271,20 @@ typedef struct siginfo {
#define TRAP_TRACE 2 /* process trace trap */
#define TRAP_BRANCH 3 /* process taken branch trap */
#define TRAP_HWBKPT 4 /* hardware breakpoint/watchpoint */
+#ifdef __bfin__
+# define TRAP_STEP 1 /* single-step breakpoint */
+# define TRAP_TRACEFLOW 2 /* trace buffer overflow */
+# define TRAP_WATCHPT 3 /* watchpoint match */
+# define TRAP_ILLTRAP 4 /* illegal trap */
+#endif
#define NSIGTRAP 4
/*
+ * There are an additional set of SIGTRAP si_codes used by ptrace
+ * that of the form: ((PTRACE_EVENT_XXX << 8) | SIGTRAP)
+ */
+
+/*
* SIGCHLD si_codes
*/
#define CLD_EXITED 1 /* child has exited */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-16 19:01:28 +0100