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Date: Sat, 11 Apr 2015 22:47:54 +0200
From: Richard Weinberger <richard@....at>
To: linux-arch@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, rth@...ddle.net,
ink@...assic.park.msu.ru, mattst88@...il.com, vgupta@...opsys.com,
linux@....linux.org.uk, catalin.marinas@....com,
will.deacon@....com, hskinnemoen@...il.com, egtvedt@...fundet.no,
realmz6@...il.com, msalter@...hat.com, a-jacquiot@...com,
starvik@...s.com, jesper.nilsson@...s.com, dhowells@...hat.com,
rkuo@...eaurora.org, tony.luck@...el.com, fenghua.yu@...el.com,
geert@...ux-m68k.org, james.hogan@...tec.com, monstr@...str.eu,
ralf@...ux-mips.org, yasutake.koichi@...panasonic.com,
lftan@...era.com, jonas@...thpole.se, jejb@...isc-linux.org,
deller@....de, benh@...nel.crashing.org, paulus@...ba.org,
mpe@...erman.id.au, schwidefsky@...ibm.com,
heiko.carstens@...ibm.com, liqin.linux@...il.com,
lennox.wu@...il.com, davem@...emloft.net, cmetcalf@...hip.com,
jdike@...toit.com, akpm@...ux-foundation.org, oleg@...hat.com,
hch@...radead.org, viro@...iv.linux.org.uk,
torvalds@...ux-foundation.org, Richard Weinberger <richard@....at>
Subject: [PATCH 15/24] sh: Remove signal translation and exec_domain
As execution domain support is gone we can remove
signal translation from the signal code and remove
exec_domain from thread_info.
Signed-off-by: Richard Weinberger <richard@....at>
---
arch/sh/include/asm/thread_info.h | 2 --
arch/sh/kernel/asm-offsets.c | 1 -
arch/sh/kernel/irq.c | 2 --
arch/sh/kernel/signal_32.c | 18 ++----------------
arch/sh/kernel/signal_64.c | 21 ++++-----------------
5 files changed, 6 insertions(+), 38 deletions(-)
diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h
index 657c039..2afa321 100644
--- a/arch/sh/include/asm/thread_info.h
+++ b/arch/sh/include/asm/thread_info.h
@@ -27,7 +27,6 @@
struct thread_info {
struct task_struct *task; /* main task structure */
- struct exec_domain *exec_domain; /* execution domain */
unsigned long flags; /* low level flags */
__u32 status; /* thread synchronous flags */
__u32 cpu;
@@ -56,7 +55,6 @@ struct thread_info {
#define INIT_THREAD_INFO(tsk) \
{ \
.task = &tsk, \
- .exec_domain = &default_exec_domain, \
.flags = 0, \
.status = 0, \
.cpu = 0, \
diff --git a/arch/sh/kernel/asm-offsets.c b/arch/sh/kernel/asm-offsets.c
index 542225f..4bd44da 100644
--- a/arch/sh/kernel/asm-offsets.c
+++ b/arch/sh/kernel/asm-offsets.c
@@ -21,7 +21,6 @@ int main(void)
{
/* offsets into the thread_info struct */
DEFINE(TI_TASK, offsetof(struct thread_info, task));
- DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 65a1ecd..eb10ff8 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -124,7 +124,6 @@ void irq_ctx_init(int cpu)
irqctx = (union irq_ctx *)&hardirq_stack[cpu * THREAD_SIZE];
irqctx->tinfo.task = NULL;
- irqctx->tinfo.exec_domain = NULL;
irqctx->tinfo.cpu = cpu;
irqctx->tinfo.preempt_count = HARDIRQ_OFFSET;
irqctx->tinfo.addr_limit = MAKE_MM_SEG(0);
@@ -133,7 +132,6 @@ void irq_ctx_init(int cpu)
irqctx = (union irq_ctx *)&softirq_stack[cpu * THREAD_SIZE];
irqctx->tinfo.task = NULL;
- irqctx->tinfo.exec_domain = NULL;
irqctx->tinfo.cpu = cpu;
irqctx->tinfo.preempt_count = 0;
irqctx->tinfo.addr_limit = MAKE_MM_SEG(0);
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
index 0b34f2a..ab7b56b 100644
--- a/arch/sh/kernel/signal_32.c
+++ b/arch/sh/kernel/signal_32.c
@@ -267,19 +267,12 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
{
struct sigframe __user *frame;
int err = 0, sig = ksig->sig;
- int signal;
frame = get_sigframe(&ksig->ka, regs->regs[15], sizeof(*frame));
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
return -EFAULT;
- signal = current_thread_info()->exec_domain
- && current_thread_info()->exec_domain->signal_invmap
- && sig < 32
- ? current_thread_info()->exec_domain->signal_invmap[sig]
- : sig;
-
err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
if (_NSIG_WORDS > 1)
@@ -313,7 +306,7 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
/* Set up registers for signal handler */
regs->regs[15] = (unsigned long) frame;
- regs->regs[4] = signal; /* Arg for signal handler */
+ regs->regs[4] = sig; /* Arg for signal handler */
regs->regs[5] = 0;
regs->regs[6] = (unsigned long) &frame->sc;
@@ -342,19 +335,12 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
{
struct rt_sigframe __user *frame;
int err = 0, sig = ksig->sig;
- int signal;
frame = get_sigframe(&ksig->ka, regs->regs[15], sizeof(*frame));
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
return -EFAULT;
- signal = current_thread_info()->exec_domain
- && current_thread_info()->exec_domain->signal_invmap
- && sig < 32
- ? current_thread_info()->exec_domain->signal_invmap[sig]
- : sig;
-
err |= copy_siginfo_to_user(&frame->info, &ksig->info);
/* Create the ucontext. */
@@ -392,7 +378,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
/* Set up registers for signal handler */
regs->regs[15] = (unsigned long) frame;
- regs->regs[4] = signal; /* Arg for signal handler */
+ regs->regs[4] = sig; /* Arg for signal handler */
regs->regs[5] = (unsigned long) &frame->info;
regs->regs[6] = (unsigned long) &frame->uc;
diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c
index 71993c6..76122d6 100644
--- a/arch/sh/kernel/signal_64.c
+++ b/arch/sh/kernel/signal_64.c
@@ -385,12 +385,6 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
return -EFAULT;
- signal = current_thread_info()->exec_domain
- && current_thread_info()->exec_domain->signal_invmap
- && sig < 32
- ? current_thread_info()->exec_domain->signal_invmap[sig]
- : sig;
-
err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
/* Give up earlier as i386, in case */
@@ -441,7 +435,7 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs
* All edited pointers are subject to NEFF.
*/
regs->regs[REG_SP] = neff_sign_extend((unsigned long)frame);
- regs->regs[REG_ARG1] = signal; /* Arg for signal handler */
+ regs->regs[REG_ARG1] = sig; /* Arg for signal handler */
/* FIXME:
The glibc profiling support for SH-5 needs to be passed a sigcontext
@@ -461,7 +455,7 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs
/* Broken %016Lx */
pr_debug("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",
- signal, current->comm, current->pid, frame,
+ sig, current->comm, current->pid, frame,
regs->pc >> 32, regs->pc & 0xffffffff,
DEREF_REG_PR >> 32, DEREF_REG_PR & 0xffffffff);
@@ -473,19 +467,12 @@ static int setup_rt_frame(struct ksignal *kig, sigset_t *set,
{
struct rt_sigframe __user *frame;
int err = 0, sig = ksig->sig;
- int signal;
frame = get_sigframe(&ksig->ka, regs->regs[REG_SP], sizeof(*frame));
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
return -EFAULT;
- signal = current_thread_info()->exec_domain
- && current_thread_info()->exec_domain->signal_invmap
- && sig < 32
- ? current_thread_info()->exec_domain->signal_invmap[sig]
- : sig;
-
err |= __put_user(&frame->info, &frame->pinfo);
err |= __put_user(&frame->uc, &frame->puc);
err |= copy_siginfo_to_user(&frame->info, &ksig->info);
@@ -542,7 +529,7 @@ static int setup_rt_frame(struct ksignal *kig, sigset_t *set,
* All edited pointers are subject to NEFF.
*/
regs->regs[REG_SP] = neff_sign_extend((unsigned long)frame);
- regs->regs[REG_ARG1] = signal; /* Arg for signal handler */
+ regs->regs[REG_ARG1] = sig; /* Arg for signal handler */
regs->regs[REG_ARG2] = (unsigned long long)(unsigned long)(signed long)&frame->info;
regs->regs[REG_ARG3] = (unsigned long long)(unsigned long)(signed long)&frame->uc.uc_mcontext;
regs->pc = neff_sign_extend((unsigned long)ksig->ka.sa.sa_handler);
@@ -550,7 +537,7 @@ static int setup_rt_frame(struct ksignal *kig, sigset_t *set,
set_fs(USER_DS);
pr_debug("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",
- signal, current->comm, current->pid, frame,
+ sig, current->comm, current->pid, frame,
regs->pc >> 32, regs->pc & 0xffffffff,
DEREF_REG_PR >> 32, DEREF_REG_PR & 0xffffffff);
--
1.8.4.5
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