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Diffstat (limited to 'arch/powerpc/kernel/signal_32.c')
-rw-r--r--arch/powerpc/kernel/signal_32.c83
1 files changed, 43 insertions, 40 deletions
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index bebdf1a1a540..749778e0a69d 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -265,27 +265,27 @@ struct rt_sigframe {
unsigned long copy_fpr_to_user(void __user *to,
struct task_struct *task)
{
- double buf[ELF_NFPREG];
+ u64 buf[ELF_NFPREG];
int i;
/* save FPR copy to local buffer then write to the thread_struct */
for (i = 0; i < (ELF_NFPREG - 1) ; i++)
buf[i] = task->thread.TS_FPR(i);
- memcpy(&buf[i], &task->thread.fpscr, sizeof(double));
+ buf[i] = task->thread.fp_state.fpscr;
return __copy_to_user(to, buf, ELF_NFPREG * sizeof(double));
}
unsigned long copy_fpr_from_user(struct task_struct *task,
void __user *from)
{
- double buf[ELF_NFPREG];
+ u64 buf[ELF_NFPREG];
int i;
if (__copy_from_user(buf, from, ELF_NFPREG * sizeof(double)))
return 1;
for (i = 0; i < (ELF_NFPREG - 1) ; i++)
task->thread.TS_FPR(i) = buf[i];
- memcpy(&task->thread.fpscr, &buf[i], sizeof(double));
+ task->thread.fp_state.fpscr = buf[i];
return 0;
}
@@ -293,25 +293,25 @@ unsigned long copy_fpr_from_user(struct task_struct *task,
unsigned long copy_vsx_to_user(void __user *to,
struct task_struct *task)
{
- double buf[ELF_NVSRHALFREG];
+ u64 buf[ELF_NVSRHALFREG];
int i;
/* save FPR copy to local buffer then write to the thread_struct */
for (i = 0; i < ELF_NVSRHALFREG; i++)
- buf[i] = task->thread.fpr[i][TS_VSRLOWOFFSET];
+ buf[i] = task->thread.fp_state.fpr[i][TS_VSRLOWOFFSET];
return __copy_to_user(to, buf, ELF_NVSRHALFREG * sizeof(double));
}
unsigned long copy_vsx_from_user(struct task_struct *task,
void __user *from)
{
- double buf[ELF_NVSRHALFREG];
+ u64 buf[ELF_NVSRHALFREG];
int i;
if (__copy_from_user(buf, from, ELF_NVSRHALFREG * sizeof(double)))
return 1;
for (i = 0; i < ELF_NVSRHALFREG ; i++)
- task->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i];
+ task->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = buf[i];
return 0;
}
@@ -319,27 +319,27 @@ unsigned long copy_vsx_from_user(struct task_struct *task,
unsigned long copy_transact_fpr_to_user(void __user *to,
struct task_struct *task)
{
- double buf[ELF_NFPREG];
+ u64 buf[ELF_NFPREG];
int i;
/* save FPR copy to local buffer then write to the thread_struct */
for (i = 0; i < (ELF_NFPREG - 1) ; i++)
buf[i] = task->thread.TS_TRANS_FPR(i);
- memcpy(&buf[i], &task->thread.transact_fpscr, sizeof(double));
+ buf[i] = task->thread.transact_fp.fpscr;
return __copy_to_user(to, buf, ELF_NFPREG * sizeof(double));
}
unsigned long copy_transact_fpr_from_user(struct task_struct *task,
void __user *from)
{
- double buf[ELF_NFPREG];
+ u64 buf[ELF_NFPREG];
int i;
if (__copy_from_user(buf, from, ELF_NFPREG * sizeof(double)))
return 1;
for (i = 0; i < (ELF_NFPREG - 1) ; i++)
task->thread.TS_TRANS_FPR(i) = buf[i];
- memcpy(&task->thread.transact_fpscr, &buf[i], sizeof(double));
+ task->thread.transact_fp.fpscr = buf[i];
return 0;
}
@@ -347,25 +347,25 @@ unsigned long copy_transact_fpr_from_user(struct task_struct *task,
unsigned long copy_transact_vsx_to_user(void __user *to,
struct task_struct *task)
{
- double buf[ELF_NVSRHALFREG];
+ u64 buf[ELF_NVSRHALFREG];
int i;
/* save FPR copy to local buffer then write to the thread_struct */
for (i = 0; i < ELF_NVSRHALFREG; i++)
- buf[i] = task->thread.transact_fpr[i][TS_VSRLOWOFFSET];
+ buf[i] = task->thread.transact_fp.fpr[i][TS_VSRLOWOFFSET];
return __copy_to_user(to, buf, ELF_NVSRHALFREG * sizeof(double));
}
unsigned long copy_transact_vsx_from_user(struct task_struct *task,
void __user *from)
{
- double buf[ELF_NVSRHALFREG];
+ u64 buf[ELF_NVSRHALFREG];
int i;
if (__copy_from_user(buf, from, ELF_NVSRHALFREG * sizeof(double)))
return 1;
for (i = 0; i < ELF_NVSRHALFREG ; i++)
- task->thread.transact_fpr[i][TS_VSRLOWOFFSET] = buf[i];
+ task->thread.transact_fp.fpr[i][TS_VSRLOWOFFSET] = buf[i];
return 0;
}
#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
@@ -373,14 +373,14 @@ unsigned long copy_transact_vsx_from_user(struct task_struct *task,
inline unsigned long copy_fpr_to_user(void __user *to,
struct task_struct *task)
{
- return __copy_to_user(to, task->thread.fpr,
+ return __copy_to_user(to, task->thread.fp_state.fpr,
ELF_NFPREG * sizeof(double));
}
inline unsigned long copy_fpr_from_user(struct task_struct *task,
void __user *from)
{
- return __copy_from_user(task->thread.fpr, from,
+ return __copy_from_user(task->thread.fp_state.fpr, from,
ELF_NFPREG * sizeof(double));
}
@@ -388,14 +388,14 @@ inline unsigned long copy_fpr_from_user(struct task_struct *task,
inline unsigned long copy_transact_fpr_to_user(void __user *to,
struct task_struct *task)
{
- return __copy_to_user(to, task->thread.transact_fpr,
+ return __copy_to_user(to, task->thread.transact_fp.fpr,
ELF_NFPREG * sizeof(double));
}
inline unsigned long copy_transact_fpr_from_user(struct task_struct *task,
void __user *from)
{
- return __copy_from_user(task->thread.transact_fpr, from,
+ return __copy_from_user(task->thread.transact_fp.fpr, from,
ELF_NFPREG * sizeof(double));
}
#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
@@ -423,7 +423,7 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
/* save altivec registers */
if (current->thread.used_vr) {
flush_altivec_to_thread(current);
- if (__copy_to_user(&frame->mc_vregs, current->thread.vr,
+ if (__copy_to_user(&frame->mc_vregs, &current->thread.vr_state,
ELF_NVRREG * sizeof(vector128)))
return 1;
/* set MSR_VEC in the saved MSR value to indicate that
@@ -534,17 +534,17 @@ static int save_tm_user_regs(struct pt_regs *regs,
/* save altivec registers */
if (current->thread.used_vr) {
flush_altivec_to_thread(current);
- if (__copy_to_user(&frame->mc_vregs, current->thread.vr,
+ if (__copy_to_user(&frame->mc_vregs, &current->thread.vr_state,
ELF_NVRREG * sizeof(vector128)))
return 1;
if (msr & MSR_VEC) {
if (__copy_to_user(&tm_frame->mc_vregs,
- current->thread.transact_vr,
+ &current->thread.transact_vr,
ELF_NVRREG * sizeof(vector128)))
return 1;
} else {
if (__copy_to_user(&tm_frame->mc_vregs,
- current->thread.vr,
+ &current->thread.vr_state,
ELF_NVRREG * sizeof(vector128)))
return 1;
}
@@ -692,11 +692,12 @@ static long restore_user_regs(struct pt_regs *regs,
regs->msr &= ~MSR_VEC;
if (msr & MSR_VEC) {
/* restore altivec registers from the stack */
- if (__copy_from_user(current->thread.vr, &sr->mc_vregs,
+ if (__copy_from_user(&current->thread.vr_state, &sr->mc_vregs,
sizeof(sr->mc_vregs)))
return 1;
} else if (current->thread.used_vr)
- memset(current->thread.vr, 0, ELF_NVRREG * sizeof(vector128));
+ memset(&current->thread.vr_state, 0,
+ ELF_NVRREG * sizeof(vector128));
/* Always get VRSAVE back */
if (__get_user(current->thread.vrsave, (u32 __user *)&sr->mc_vregs[32]))
@@ -722,7 +723,7 @@ static long restore_user_regs(struct pt_regs *regs,
return 1;
} else if (current->thread.used_vsr)
for (i = 0; i < 32 ; i++)
- current->thread.fpr[i][TS_VSRLOWOFFSET] = 0;
+ current->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = 0;
#endif /* CONFIG_VSX */
/*
* force the process to reload the FP registers from
@@ -798,15 +799,16 @@ static long restore_tm_user_regs(struct pt_regs *regs,
regs->msr &= ~MSR_VEC;
if (msr & MSR_VEC) {
/* restore altivec registers from the stack */
- if (__copy_from_user(current->thread.vr, &sr->mc_vregs,
+ if (__copy_from_user(&current->thread.vr_state, &sr->mc_vregs,
sizeof(sr->mc_vregs)) ||
- __copy_from_user(current->thread.transact_vr,
+ __copy_from_user(&current->thread.transact_vr,
&tm_sr->mc_vregs,
sizeof(sr->mc_vregs)))
return 1;
} else if (current->thread.used_vr) {
- memset(current->thread.vr, 0, ELF_NVRREG * sizeof(vector128));
- memset(current->thread.transact_vr, 0,
+ memset(&current->thread.vr_state, 0,
+ ELF_NVRREG * sizeof(vector128));
+ memset(&current->thread.transact_vr, 0,
ELF_NVRREG * sizeof(vector128));
}
@@ -838,8 +840,8 @@ static long restore_tm_user_regs(struct pt_regs *regs,
return 1;
} else if (current->thread.used_vsr)
for (i = 0; i < 32 ; i++) {
- current->thread.fpr[i][TS_VSRLOWOFFSET] = 0;
- current->thread.transact_fpr[i][TS_VSRLOWOFFSET] = 0;
+ current->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = 0;
+ current->thread.transact_fp.fpr[i][TS_VSRLOWOFFSET] = 0;
}
#endif /* CONFIG_VSX */
@@ -891,7 +893,7 @@ static long restore_tm_user_regs(struct pt_regs *regs,
#endif
#ifdef CONFIG_PPC64
-int copy_siginfo_to_user32(struct compat_siginfo __user *d, siginfo_t *s)
+int copy_siginfo_to_user32(struct compat_siginfo __user *d, const siginfo_t *s)
{
int err;
@@ -1030,7 +1032,7 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
if (__put_user(0, &rt_sf->uc.uc_link))
goto badframe;
- current->thread.fpscr.val = 0; /* turn off all fp exceptions */
+ current->thread.fp_state.fpscr = 0; /* turn off all fp exceptions */
/* create a stack frame for the caller of the handler */
newsp = ((unsigned long)rt_sf) - (__SIGNAL_FRAMESIZE + 16);
@@ -1045,8 +1047,9 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
regs->gpr[5] = (unsigned long) &rt_sf->uc;
regs->gpr[6] = (unsigned long) rt_sf;
regs->nip = (unsigned long) ka->sa.sa_handler;
- /* enter the signal handler in big-endian mode */
+ /* enter the signal handler in native-endian mode */
regs->msr &= ~MSR_LE;
+ regs->msr |= (MSR_KERNEL & MSR_LE);
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
/* Remove TM bits from thread's MSR. The MSR in the sigcontext
* just indicates to userland that we were doing a transaction, but we
@@ -1309,7 +1312,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx,
unsigned char tmp;
unsigned long new_msr = regs->msr;
#ifdef CONFIG_PPC_ADV_DEBUG_REGS
- unsigned long new_dbcr0 = current->thread.dbcr0;
+ unsigned long new_dbcr0 = current->thread.debug.dbcr0;
#endif
for (i=0; i<ndbg; i++) {
@@ -1324,7 +1327,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx,
} else {
new_dbcr0 &= ~DBCR0_IC;
if (!DBCR_ACTIVE_EVENTS(new_dbcr0,
- current->thread.dbcr1)) {
+ current->thread.debug.dbcr1)) {
new_msr &= ~MSR_DE;
new_dbcr0 &= ~DBCR0_IDM;
}
@@ -1359,7 +1362,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx,
the user is really doing something wrong. */
regs->msr = new_msr;
#ifdef CONFIG_PPC_ADV_DEBUG_REGS
- current->thread.dbcr0 = new_dbcr0;
+ current->thread.debug.dbcr0 = new_dbcr0;
#endif
if (!access_ok(VERIFY_READ, ctx, sizeof(*ctx))
@@ -1462,7 +1465,7 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka,
regs->link = tramp;
- current->thread.fpscr.val = 0; /* turn off all fp exceptions */
+ current->thread.fp_state.fpscr = 0; /* turn off all fp exceptions */
/* create a stack frame for the caller of the handler */
newsp = ((unsigned long)frame) - __SIGNAL_FRAMESIZE;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.