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-rw-r--r--arch/ia64/kernel/brl_emu.c31
-rw-r--r--arch/ia64/kernel/signal.c60
-rw-r--r--arch/ia64/kernel/traps.c144
-rw-r--r--arch/ia64/kernel/unaligned.c12
4 files changed, 60 insertions, 187 deletions
diff --git a/arch/ia64/kernel/brl_emu.c b/arch/ia64/kernel/brl_emu.c
index a61f6c6a36f8..c0239bf77a09 100644
--- a/arch/ia64/kernel/brl_emu.c
+++ b/arch/ia64/kernel/brl_emu.c
@@ -58,11 +58,9 @@ ia64_emulate_brl (struct pt_regs *regs, unsigned long ar_ec)
unsigned long bundle[2];
unsigned long opcode, btype, qp, offset, cpl;
unsigned long next_ip;
- struct siginfo siginfo;
struct illegal_op_return rv;
long tmp_taken, unimplemented_address;
- clear_siginfo(&siginfo);
rv.fkt = (unsigned long) -1;
/*
@@ -198,39 +196,22 @@ ia64_emulate_brl (struct pt_regs *regs, unsigned long ar_ec)
* The target address contains unimplemented bits.
*/
printk(KERN_DEBUG "Woah! Unimplemented Instruction Address Trap!\n");
- siginfo.si_signo = SIGILL;
- siginfo.si_errno = 0;
- siginfo.si_flags = 0;
- siginfo.si_isr = 0;
- siginfo.si_imm = 0;
- siginfo.si_code = ILL_BADIADDR;
- force_sig_info(SIGILL, &siginfo, current);
+ force_sig_fault(SIGILL, ILL_BADIADDR, (void __user *)NULL,
+ 0, 0, 0, current);
} else if (ia64_psr(regs)->tb) {
/*
* Branch Tracing is enabled.
* Force a taken branch signal.
*/
- siginfo.si_signo = SIGTRAP;
- siginfo.si_errno = 0;
- siginfo.si_code = TRAP_BRANCH;
- siginfo.si_flags = 0;
- siginfo.si_isr = 0;
- siginfo.si_addr = 0;
- siginfo.si_imm = 0;
- force_sig_info(SIGTRAP, &siginfo, current);
+ force_sig_fault(SIGTRAP, TRAP_BRANCH, (void __user *)NULL,
+ 0, 0, 0, current);
} else if (ia64_psr(regs)->ss) {
/*
* Single Step is enabled.
* Force a trace signal.
*/
- siginfo.si_signo = SIGTRAP;
- siginfo.si_errno = 0;
- siginfo.si_code = TRAP_TRACE;
- siginfo.si_flags = 0;
- siginfo.si_isr = 0;
- siginfo.si_addr = 0;
- siginfo.si_imm = 0;
- force_sig_info(SIGTRAP, &siginfo, current);
+ force_sig_fault(SIGTRAP, TRAP_TRACE, (void __user *)NULL,
+ 0, 0, 0, current);
}
return rv;
}
diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c
index d1234a5ba4c5..9a960829a01d 100644
--- a/arch/ia64/kernel/signal.c
+++ b/arch/ia64/kernel/signal.c
@@ -110,7 +110,6 @@ ia64_rt_sigreturn (struct sigscratch *scr)
{
extern char ia64_strace_leave_kernel, ia64_leave_kernel;
struct sigcontext __user *sc;
- struct siginfo si;
sigset_t set;
long retval;
@@ -153,14 +152,7 @@ ia64_rt_sigreturn (struct sigscratch *scr)
return retval;
give_sigsegv:
- clear_siginfo(&si);
- si.si_signo = SIGSEGV;
- si.si_errno = 0;
- si.si_code = SI_KERNEL;
- si.si_pid = task_pid_vnr(current);
- si.si_uid = from_kuid_munged(current_user_ns(), current_uid());
- si.si_addr = sc;
- force_sig_info(SIGSEGV, &si, current);
+ force_sig(SIGSEGV, current);
return retval;
}
@@ -232,37 +224,6 @@ rbs_on_sig_stack (unsigned long bsp)
}
static long
-force_sigsegv_info (int sig, void __user *addr)
-{
- unsigned long flags;
- struct siginfo si;
-
- clear_siginfo(&si);
- if (sig == SIGSEGV) {
- /*
- * Acquiring siglock around the sa_handler-update is almost
- * certainly overkill, but this isn't a
- * performance-critical path and I'd rather play it safe
- * here than having to debug a nasty race if and when
- * something changes in kernel/signal.c that would make it
- * no longer safe to modify sa_handler without holding the
- * lock.
- */
- spin_lock_irqsave(&current->sighand->siglock, flags);
- current->sighand->action[sig - 1].sa.sa_handler = SIG_DFL;
- spin_unlock_irqrestore(&current->sighand->siglock, flags);
- }
- si.si_signo = SIGSEGV;
- si.si_errno = 0;
- si.si_code = SI_KERNEL;
- si.si_pid = task_pid_vnr(current);
- si.si_uid = from_kuid_munged(current_user_ns(), current_uid());
- si.si_addr = addr;
- force_sig_info(SIGSEGV, &si, current);
- return 1;
-}
-
-static long
setup_frame(struct ksignal *ksig, sigset_t *set, struct sigscratch *scr)
{
extern char __kernel_sigtramp[];
@@ -295,15 +256,18 @@ setup_frame(struct ksignal *ksig, sigset_t *set, struct sigscratch *scr)
* instead so we will die with SIGSEGV.
*/
check_sp = (new_sp - sizeof(*frame)) & -STACK_ALIGN;
- if (!likely(on_sig_stack(check_sp)))
- return force_sigsegv_info(ksig->sig, (void __user *)
- check_sp);
+ if (!likely(on_sig_stack(check_sp))) {
+ force_sigsegv(ksig->sig, current);
+ return 1;
+ }
}
}
frame = (void __user *) ((new_sp - sizeof(*frame)) & -STACK_ALIGN);
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- return force_sigsegv_info(ksig->sig, frame);
+ if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) {
+ force_sigsegv(ksig->sig, current);
+ return 1;
+ }
err = __put_user(ksig->sig, &frame->arg0);
err |= __put_user(&frame->info, &frame->arg1);
@@ -317,8 +281,10 @@ setup_frame(struct ksignal *ksig, sigset_t *set, struct sigscratch *scr)
err |= __save_altstack(&frame->sc.sc_stack, scr->pt.r12);
err |= setup_sigcontext(&frame->sc, set, scr);
- if (unlikely(err))
- return force_sigsegv_info(ksig->sig, frame);
+ if (unlikely(err)) {
+ force_sigsegv(ksig->sig, current);
+ return 1;
+ }
scr->pt.r12 = (unsigned long) frame - 16; /* new stack pointer */
scr->pt.ar_fpsr = FPSR_DEFAULT; /* reset fpsr for signal handler */
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index c6f4932073a1..85d8616ac4f6 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -100,16 +100,8 @@ die_if_kernel (char *str, struct pt_regs *regs, long err)
void
__kprobes ia64_bad_break (unsigned long break_num, struct pt_regs *regs)
{
- siginfo_t siginfo;
int sig, code;
- /* SIGILL, SIGFPE, SIGSEGV, and SIGBUS want these field initialized: */
- clear_siginfo(&siginfo);
- siginfo.si_addr = (void __user *) (regs->cr_iip + ia64_psr(regs)->ri);
- siginfo.si_imm = break_num;
- siginfo.si_flags = 0; /* clear __ISR_VALID */
- siginfo.si_isr = 0;
-
switch (break_num) {
case 0: /* unknown error (used by GCC for __builtin_abort()) */
if (notify_die(DIE_BREAK, "break 0", regs, break_num, TRAP_BRKPT, SIGTRAP)
@@ -182,10 +174,9 @@ __kprobes ia64_bad_break (unsigned long break_num, struct pt_regs *regs)
sig = SIGTRAP; code = TRAP_BRKPT;
}
}
- siginfo.si_signo = sig;
- siginfo.si_errno = 0;
- siginfo.si_code = code;
- force_sig_info(sig, &siginfo, current);
+ force_sig_fault(sig, code,
+ (void __user *) (regs->cr_iip + ia64_psr(regs)->ri),
+ break_num, 0 /* clear __ISR_VALID */, 0, current);
}
/*
@@ -344,30 +335,25 @@ handle_fpu_swa (int fp_fault, struct pt_regs *regs, unsigned long isr)
printk(KERN_ERR "handle_fpu_swa: fp_emulate() returned -1\n");
return -1;
} else {
- struct siginfo siginfo;
-
/* is next instruction a trap? */
+ int si_code;
+
if (exception & 2) {
ia64_increment_ip(regs);
}
- clear_siginfo(&siginfo);
- siginfo.si_signo = SIGFPE;
- siginfo.si_errno = 0;
- siginfo.si_code = FPE_FLTUNK; /* default code */
- siginfo.si_addr = (void __user *) (regs->cr_iip + ia64_psr(regs)->ri);
+ si_code = FPE_FLTUNK; /* default code */
if (isr & 0x11) {
- siginfo.si_code = FPE_FLTINV;
+ si_code = FPE_FLTINV;
} else if (isr & 0x22) {
/* denormal operand gets the same si_code as underflow
* see arch/i386/kernel/traps.c:math_error() */
- siginfo.si_code = FPE_FLTUND;
+ si_code = FPE_FLTUND;
} else if (isr & 0x44) {
- siginfo.si_code = FPE_FLTDIV;
+ si_code = FPE_FLTDIV;
}
- siginfo.si_isr = isr;
- siginfo.si_flags = __ISR_VALID;
- siginfo.si_imm = 0;
- force_sig_info(SIGFPE, &siginfo, current);
+ force_sig_fault(SIGFPE, si_code,
+ (void __user *) (regs->cr_iip + ia64_psr(regs)->ri),
+ 0, __ISR_VALID, isr, current);
}
} else {
if (exception == -1) {
@@ -375,24 +361,19 @@ handle_fpu_swa (int fp_fault, struct pt_regs *regs, unsigned long isr)
return -1;
} else if (exception != 0) {
/* raise exception */
- struct siginfo siginfo;
+ int si_code;
- clear_siginfo(&siginfo);
- siginfo.si_signo = SIGFPE;
- siginfo.si_errno = 0;
- siginfo.si_code = FPE_FLTUNK; /* default code */
- siginfo.si_addr = (void __user *) (regs->cr_iip + ia64_psr(regs)->ri);
+ si_code = FPE_FLTUNK; /* default code */
if (isr & 0x880) {
- siginfo.si_code = FPE_FLTOVF;
+ si_code = FPE_FLTOVF;
} else if (isr & 0x1100) {
- siginfo.si_code = FPE_FLTUND;
+ si_code = FPE_FLTUND;
} else if (isr & 0x2200) {
- siginfo.si_code = FPE_FLTRES;
+ si_code = FPE_FLTRES;
}
- siginfo.si_isr = isr;
- siginfo.si_flags = __ISR_VALID;
- siginfo.si_imm = 0;
- force_sig_info(SIGFPE, &siginfo, current);
+ force_sig_fault(SIGFPE, si_code,
+ (void __user *) (regs->cr_iip + ia64_psr(regs)->ri),
+ 0, __ISR_VALID, isr, current);
}
}
return 0;
@@ -408,7 +389,6 @@ ia64_illegal_op_fault (unsigned long ec, long arg1, long arg2, long arg3,
struct pt_regs regs)
{
struct illegal_op_return rv;
- struct siginfo si;
char buf[128];
#ifdef CONFIG_IA64_BRL_EMU
@@ -426,11 +406,9 @@ ia64_illegal_op_fault (unsigned long ec, long arg1, long arg2, long arg3,
if (die_if_kernel(buf, &regs, 0))
return rv;
- clear_siginfo(&si);
- si.si_signo = SIGILL;
- si.si_code = ILL_ILLOPC;
- si.si_addr = (void __user *) (regs.cr_iip + ia64_psr(&regs)->ri);
- force_sig_info(SIGILL, &si, current);
+ force_sig_fault(SIGILL, ILL_ILLOPC,
+ (void __user *) (regs.cr_iip + ia64_psr(&regs)->ri),
+ 0, 0, 0, current);
return rv;
}
@@ -441,7 +419,7 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
{
unsigned long code, error = isr, iip;
char buf[128];
- int result, sig;
+ int result, sig, si_code;
static const char *reason[] = {
"IA-64 Illegal Operation fault",
"IA-64 Privileged Operation fault",
@@ -490,7 +468,6 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
case 26: /* NaT Consumption */
if (user_mode(&regs)) {
- struct siginfo siginfo;
void __user *addr;
if (((isr >> 4) & 0xf) == 2) {
@@ -505,15 +482,8 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
addr = (void __user *) (regs.cr_iip
+ ia64_psr(&regs)->ri);
}
- clear_siginfo(&siginfo);
- siginfo.si_signo = sig;
- siginfo.si_code = code;
- siginfo.si_errno = 0;
- siginfo.si_addr = addr;
- siginfo.si_imm = vector;
- siginfo.si_flags = __ISR_VALID;
- siginfo.si_isr = isr;
- force_sig_info(sig, &siginfo, current);
+ force_sig_fault(sig, code, addr,
+ vector, __ISR_VALID, isr, current);
return;
} else if (ia64_done_with_exception(&regs))
return;
@@ -522,17 +492,8 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
case 31: /* Unsupported Data Reference */
if (user_mode(&regs)) {
- struct siginfo siginfo;
-
- clear_siginfo(&siginfo);
- siginfo.si_signo = SIGILL;
- siginfo.si_code = ILL_ILLOPN;
- siginfo.si_errno = 0;
- siginfo.si_addr = (void __user *) iip;
- siginfo.si_imm = vector;
- siginfo.si_flags = __ISR_VALID;
- siginfo.si_isr = isr;
- force_sig_info(SIGILL, &siginfo, current);
+ force_sig_fault(SIGILL, ILL_ILLOPN, (void __user *) iip,
+ vector, __ISR_VALID, isr, current);
return;
}
sprintf(buf, "Unsupported data reference");
@@ -541,10 +502,6 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
case 29: /* Debug */
case 35: /* Taken Branch Trap */
case 36: /* Single Step Trap */
- {
- struct siginfo siginfo;
-
- clear_siginfo(&siginfo);
if (fsys_mode(current, &regs)) {
extern char __kernel_syscall_via_break[];
/*
@@ -568,7 +525,7 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
switch (vector) {
default:
case 29:
- siginfo.si_code = TRAP_HWBKPT;
+ si_code = TRAP_HWBKPT;
#ifdef CONFIG_ITANIUM
/*
* Erratum 10 (IFA may contain incorrect address) now has
@@ -578,37 +535,22 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
ifa = regs.cr_iip;
#endif
break;
- case 35: siginfo.si_code = TRAP_BRANCH; ifa = 0; break;
- case 36: siginfo.si_code = TRAP_TRACE; ifa = 0; break;
+ case 35: si_code = TRAP_BRANCH; ifa = 0; break;
+ case 36: si_code = TRAP_TRACE; ifa = 0; break;
}
- if (notify_die(DIE_FAULT, "ia64_fault", &regs, vector, siginfo.si_code, SIGTRAP)
+ if (notify_die(DIE_FAULT, "ia64_fault", &regs, vector, si_code, SIGTRAP)
== NOTIFY_STOP)
return;
- siginfo.si_signo = SIGTRAP;
- siginfo.si_errno = 0;
- siginfo.si_addr = (void __user *) ifa;
- siginfo.si_imm = 0;
- siginfo.si_flags = __ISR_VALID;
- siginfo.si_isr = isr;
- force_sig_info(SIGTRAP, &siginfo, current);
+ force_sig_fault(SIGTRAP, si_code, (void __user *) ifa,
+ 0, __ISR_VALID, isr, current);
return;
- }
case 32: /* fp fault */
case 33: /* fp trap */
result = handle_fpu_swa((vector == 32) ? 1 : 0, &regs, isr);
if ((result < 0) || (current->thread.flags & IA64_THREAD_FPEMU_SIGFPE)) {
- struct siginfo siginfo;
-
- clear_siginfo(&siginfo);
- siginfo.si_signo = SIGFPE;
- siginfo.si_errno = 0;
- siginfo.si_code = FPE_FLTINV;
- siginfo.si_addr = (void __user *) iip;
- siginfo.si_flags = __ISR_VALID;
- siginfo.si_isr = isr;
- siginfo.si_imm = 0;
- force_sig_info(SIGFPE, &siginfo, current);
+ force_sig_fault(SIGFPE, FPE_FLTINV, (void __user *) iip,
+ 0, __ISR_VALID, isr, current);
}
return;
@@ -634,17 +576,9 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa,
} else {
/* Unimplemented Instr. Address Trap */
if (user_mode(&regs)) {
- struct siginfo siginfo;
-
- clear_siginfo(&siginfo);
- siginfo.si_signo = SIGILL;
- siginfo.si_code = ILL_BADIADDR;
- siginfo.si_errno = 0;
- siginfo.si_flags = 0;
- siginfo.si_isr = 0;
- siginfo.si_imm = 0;
- siginfo.si_addr = (void __user *) iip;
- force_sig_info(SIGILL, &siginfo, current);
+ force_sig_fault(SIGILL, ILL_BADIADDR,
+ (void __user *) iip,
+ 0, 0, 0, current);
return;
}
sprintf(buf, "Unimplemented Instruction Address fault");
diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c
index e309f9859acc..a167a3824b35 100644
--- a/arch/ia64/kernel/unaligned.c
+++ b/arch/ia64/kernel/unaligned.c
@@ -1298,7 +1298,6 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs)
mm_segment_t old_fs = get_fs();
unsigned long bundle[2];
unsigned long opcode;
- struct siginfo si;
const struct exception_table_entry *eh = NULL;
union {
unsigned long l;
@@ -1537,14 +1536,7 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs)
/* NOT_REACHED */
}
force_sigbus:
- clear_siginfo(&si);
- si.si_signo = SIGBUS;
- si.si_errno = 0;
- si.si_code = BUS_ADRALN;
- si.si_addr = (void __user *) ifa;
- si.si_flags = 0;
- si.si_isr = 0;
- si.si_imm = 0;
- force_sig_info(SIGBUS, &si, current);
+ force_sig_fault(SIGBUS, BUS_ADRALN, (void __user *) ifa,
+ 0, 0, 0, current);
goto done;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 13:00:32 +0100