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Diffstat (limited to 'arch/arm64/kernel/signal32.c')
-rw-r--r--arch/arm64/kernel/signal32.c24
1 files changed, 15 insertions, 9 deletions
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index 77b91f478995..24b09003f821 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -243,6 +243,7 @@ static int compat_restore_sigframe(struct pt_regs *regs,
int err;
sigset_t set;
struct compat_aux_sigframe __user *aux;
+ unsigned long psr;
err = get_sigset_t(&set, &sf->uc.uc_sigmask);
if (err == 0) {
@@ -266,7 +267,9 @@ static int compat_restore_sigframe(struct pt_regs *regs,
__get_user_error(regs->compat_sp, &sf->uc.uc_mcontext.arm_sp, err);
__get_user_error(regs->compat_lr, &sf->uc.uc_mcontext.arm_lr, err);
__get_user_error(regs->pc, &sf->uc.uc_mcontext.arm_pc, err);
- __get_user_error(regs->pstate, &sf->uc.uc_mcontext.arm_cpsr, err);
+ __get_user_error(psr, &sf->uc.uc_mcontext.arm_cpsr, err);
+
+ regs->pstate = compat_psr_to_pstate(psr);
/*
* Avoid compat_sys_sigreturn() restarting.
@@ -282,8 +285,9 @@ static int compat_restore_sigframe(struct pt_regs *regs,
return err;
}
-asmlinkage int compat_sys_sigreturn(struct pt_regs *regs)
+COMPAT_SYSCALL_DEFINE0(sigreturn)
{
+ struct pt_regs *regs = current_pt_regs();
struct compat_sigframe __user *frame;
/* Always make any pending restarted system calls return -EINTR */
@@ -312,8 +316,9 @@ badframe:
return 0;
}
-asmlinkage int compat_sys_rt_sigreturn(struct pt_regs *regs)
+COMPAT_SYSCALL_DEFINE0(rt_sigreturn)
{
+ struct pt_regs *regs = current_pt_regs();
struct compat_rt_sigframe __user *frame;
/* Always make any pending restarted system calls return -EINTR */
@@ -372,22 +377,22 @@ static void compat_setup_return(struct pt_regs *regs, struct k_sigaction *ka,
{
compat_ulong_t handler = ptr_to_compat(ka->sa.sa_handler);
compat_ulong_t retcode;
- compat_ulong_t spsr = regs->pstate & ~(PSR_f | COMPAT_PSR_E_BIT);
+ compat_ulong_t spsr = regs->pstate & ~(PSR_f | PSR_AA32_E_BIT);
int thumb;
/* Check if the handler is written for ARM or Thumb */
thumb = handler & 1;
if (thumb)
- spsr |= COMPAT_PSR_T_BIT;
+ spsr |= PSR_AA32_T_BIT;
else
- spsr &= ~COMPAT_PSR_T_BIT;
+ spsr &= ~PSR_AA32_T_BIT;
/* The IT state must be cleared for both ARM and Thumb-2 */
- spsr &= ~COMPAT_PSR_IT_MASK;
+ spsr &= ~PSR_AA32_IT_MASK;
/* Restore the original endianness */
- spsr |= COMPAT_PSR_ENDSTATE;
+ spsr |= PSR_AA32_ENDSTATE;
if (ka->sa.sa_flags & SA_RESTORER) {
retcode = ptr_to_compat(ka->sa.sa_restorer);
@@ -414,6 +419,7 @@ static int compat_setup_sigframe(struct compat_sigframe __user *sf,
struct pt_regs *regs, sigset_t *set)
{
struct compat_aux_sigframe __user *aux;
+ unsigned long psr = pstate_to_compat_psr(regs->pstate);
int err = 0;
__put_user_error(regs->regs[0], &sf->uc.uc_mcontext.arm_r0, err);
@@ -432,7 +438,7 @@ static int compat_setup_sigframe(struct compat_sigframe __user *sf,
__put_user_error(regs->compat_sp, &sf->uc.uc_mcontext.arm_sp, err);
__put_user_error(regs->compat_lr, &sf->uc.uc_mcontext.arm_lr, err);
__put_user_error(regs->pc, &sf->uc.uc_mcontext.arm_pc, err);
- __put_user_error(regs->pstate, &sf->uc.uc_mcontext.arm_cpsr, err);
+ __put_user_error(psr, &sf->uc.uc_mcontext.arm_cpsr, err);
__put_user_error((compat_ulong_t)0, &sf->uc.uc_mcontext.trap_no, err);
/* set the compat FSR WnR */