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arm64: Use arm64_force_sig_info instead of force_sig_info 

Using arm64_force_sig_info means that printing messages about unhandled
signals is dealt with for us, so use that in preference to force_sig_info
and remove any homebrew printing code.

Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Will Deacon 2018-02-20 15:18:13 +00:00
parent a26731d9d1
commit 4e829b6735
3 changed files with 5 additions and 9 deletions
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3
arch/arm64/kernel/debug-monitors.c
View File

@ -33,6 +33,7 @@
#include <asm/daifflags.h>
#include <asm/debug-monitors.h>
#include <asm/system_misc.h>
#include <asm/traps.h>
/* Determine debug architecture. */
u8 debug_monitors_arch(void)
@ -223,7 +224,7 @@ static void send_user_sigtrap(int si_code)
if (interrupts_enabled(regs))
local_irq_enable();
force_sig_info(SIGTRAP, &info, current);
arm64_force_sig_info(&info, "User debug trap", current);
}
static int single_step_handler(unsigned long addr, unsigned int esr,

2
arch/arm64/kernel/ptrace.c
View File

@ -209,7 +209,7 @@ static void ptrace_hbptriggered(struct perf_event *bp,
force_sig_ptrace_errno_trap(si_errno, (void __user *)bkpt->trigger);
}
#endif
force_sig_info(SIGTRAP, &info, current);
arm64_force_sig_info(&info, "Hardware breakpoint trap (ptrace)", current);
}
/*

9
arch/arm64/kernel/traps.c
View File

@ -633,11 +633,6 @@ asmlinkage void bad_el0_sync(struct pt_regs *regs, int reason, unsigned int esr)
{
siginfo_t info;
void __user *pc = (void __user *)instruction_pointer(regs);
console_verbose();
pr_crit("Bad EL0 synchronous exception detected on CPU%d, code 0x%08x -- %s\n",
smp_processor_id(), esr, esr_get_class_string(esr));
__show_regs(regs);
info.si_signo = SIGILL;
info.si_errno = 0;
@ -645,9 +640,9 @@ asmlinkage void bad_el0_sync(struct pt_regs *regs, int reason, unsigned int esr)
info.si_addr = pc;
current->thread.fault_address = 0;
current->thread.fault_code = 0;
current->thread.fault_code = esr;
force_sig_info(info.si_signo, &info, current);
arm64_force_sig_info(&info, "Bad EL0 synchronous exception", current);
}
#ifdef CONFIG_VMAP_STACK