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Diffstat (limited to 'kernel/signal.c')
-rw-r--r--kernel/signal.c62
1 files changed, 44 insertions, 18 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index 52b6abec0ff8..65a54118ac9e 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1213,7 +1213,7 @@ static inline bool has_si_pid_and_uid(struct kernel_siginfo *info)
case SIL_FAULT_MCEERR:
case SIL_FAULT_BNDERR:
case SIL_FAULT_PKUERR:
- case SIL_PERF_EVENT:
+ case SIL_FAULT_PERF_EVENT:
case SIL_SYS:
ret = false;
break;
@@ -1681,7 +1681,6 @@ void force_sigsegv(int sig)
}
int force_sig_fault_to_task(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)
{
@@ -1692,9 +1691,6 @@ int force_sig_fault_to_task(int sig, int code, void __user *addr
info.si_errno = 0;
info.si_code = code;
info.si_addr = addr;
-#ifdef __ARCH_SI_TRAPNO
- info.si_trapno = trapno;
-#endif
#ifdef __ia64__
info.si_imm = imm;
info.si_flags = flags;
@@ -1704,16 +1700,13 @@ int force_sig_fault_to_task(int sig, int code, void __user *addr
}
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))
{
return force_sig_fault_to_task(sig, code, addr
- ___ARCH_SI_TRAPNO(trapno)
___ARCH_SI_IA64(imm, flags, isr), current);
}
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)
{
@@ -1724,9 +1717,6 @@ int send_sig_fault(int sig, int code, void __user *addr
info.si_errno = 0;
info.si_code = code;
info.si_addr = addr;
-#ifdef __ARCH_SI_TRAPNO
- info.si_trapno = trapno;
-#endif
#ifdef __ia64__
info.si_imm = imm;
info.si_flags = flags;
@@ -1823,6 +1813,39 @@ int force_sig_ptrace_errno_trap(int errno, void __user *addr)
return force_sig_info(&info);
}
+/* For the rare architectures that include trap information using
+ * si_trapno.
+ */
+int force_sig_fault_trapno(int sig, int code, void __user *addr, int trapno)
+{
+ struct kernel_siginfo info;
+
+ clear_siginfo(&info);
+ info.si_signo = sig;
+ info.si_errno = 0;
+ info.si_code = code;
+ info.si_addr = addr;
+ info.si_trapno = trapno;
+ return force_sig_info(&info);
+}
+
+/* For the rare architectures that include trap information using
+ * si_trapno.
+ */
+int send_sig_fault_trapno(int sig, int code, void __user *addr, int trapno,
+ struct task_struct *t)
+{
+ struct kernel_siginfo info;
+
+ clear_siginfo(&info);
+ info.si_signo = sig;
+ info.si_errno = 0;
+ info.si_code = code;
+ info.si_addr = addr;
+ info.si_trapno = trapno;
+ return send_sig_info(info.si_signo, &info, t);
+}
+
int kill_pgrp(struct pid *pid, int sig, int priv)
{
int ret;
@@ -2572,7 +2595,7 @@ static void hide_si_addr_tag_bits(struct ksignal *ksig)
case SIL_FAULT_MCEERR:
case SIL_FAULT_BNDERR:
case SIL_FAULT_PKUERR:
- case SIL_PERF_EVENT:
+ case SIL_FAULT_PERF_EVENT:
ksig->info.si_addr = arch_untagged_si_addr(
ksig->info.si_addr, ksig->sig, ksig->info.si_code);
break;
@@ -3257,11 +3280,14 @@ enum siginfo_layout siginfo_layout(unsigned sig, int si_code)
layout = SIL_FAULT_PKUERR;
#endif
else if ((sig == SIGTRAP) && (si_code == TRAP_PERF))
- layout = SIL_PERF_EVENT;
-#ifdef __ARCH_SI_TRAPNO
- else if (layout == SIL_FAULT)
+ layout = SIL_FAULT_PERF_EVENT;
+ else if (IS_ENABLED(CONFIG_SPARC) &&
+ (sig == SIGILL) && (si_code == ILL_ILLTRP))
+ layout = SIL_FAULT_TRAPNO;
+ else if (IS_ENABLED(CONFIG_ALPHA) &&
+ ((sig == SIGFPE) ||
+ ((sig == SIGTRAP) && (si_code == TRAP_UNK))))
layout = SIL_FAULT_TRAPNO;
-#endif
}
else if (si_code <= NSIGPOLL)
layout = SIL_POLL;
@@ -3383,7 +3409,7 @@ void copy_siginfo_to_external32(struct compat_siginfo *to,
to->si_addr = ptr_to_compat(from->si_addr);
to->si_pkey = from->si_pkey;
break;
- case SIL_PERF_EVENT:
+ case SIL_FAULT_PERF_EVENT:
to->si_addr = ptr_to_compat(from->si_addr);
to->si_perf_data = from->si_perf_data;
to->si_perf_type = from->si_perf_type;
@@ -3460,7 +3486,7 @@ static int post_copy_siginfo_from_user32(kernel_siginfo_t *to,
to->si_addr = compat_ptr(from->si_addr);
to->si_pkey = from->si_pkey;
break;
- case SIL_PERF_EVENT:
+ case SIL_FAULT_PERF_EVENT:
to->si_addr = compat_ptr(from->si_addr);
to->si_perf_data = from->si_perf_data;
to->si_perf_type = from->si_perf_type;