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-rw-r--r--arch/x86/um/asm/elf.h1
-rw-r--r--arch/x86/um/asm/processor.h3
-rw-r--r--arch/x86/um/mem_64.c15
-rw-r--r--arch/x86/um/signal.c45
4 files changed, 23 insertions, 41 deletions
diff --git a/arch/x86/um/asm/elf.h b/arch/x86/um/asm/elf.h
index 0feee2fd5077..25a1022dd793 100644
--- a/arch/x86/um/asm/elf.h
+++ b/arch/x86/um/asm/elf.h
@@ -216,6 +216,5 @@ extern long elf_aux_hwcap;
#define ELF_HWCAP (elf_aux_hwcap)
#define SET_PERSONALITY(ex) do ; while(0)
-#define __HAVE_ARCH_GATE_AREA 1
#endif
diff --git a/arch/x86/um/asm/processor.h b/arch/x86/um/asm/processor.h
index 04f82e020f2b..2a206d2b14ab 100644
--- a/arch/x86/um/asm/processor.h
+++ b/arch/x86/um/asm/processor.h
@@ -25,7 +25,8 @@ static inline void rep_nop(void)
__asm__ __volatile__("rep;nop": : :"memory");
}
-#define cpu_relax() rep_nop()
+#define cpu_relax() rep_nop()
+#define cpu_relax_lowlatency() cpu_relax()
#include <asm/processor-generic.h>
diff --git a/arch/x86/um/mem_64.c b/arch/x86/um/mem_64.c
index c6492e75797b..f8fecaddcc0d 100644
--- a/arch/x86/um/mem_64.c
+++ b/arch/x86/um/mem_64.c
@@ -9,18 +9,3 @@ const char *arch_vma_name(struct vm_area_struct *vma)
return NULL;
}
-
-struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
-{
- return NULL;
-}
-
-int in_gate_area(struct mm_struct *mm, unsigned long addr)
-{
- return 0;
-}
-
-int in_gate_area_no_mm(unsigned long addr)
-{
- return 0;
-}
diff --git a/arch/x86/um/signal.c b/arch/x86/um/signal.c
index 5e04a1c899fa..79d824551c1a 100644
--- a/arch/x86/um/signal.c
+++ b/arch/x86/um/signal.c
@@ -370,13 +370,12 @@ struct rt_sigframe
char retcode[8];
};
-int setup_signal_stack_sc(unsigned long stack_top, int sig,
- struct k_sigaction *ka, struct pt_regs *regs,
- sigset_t *mask)
+int setup_signal_stack_sc(unsigned long stack_top, struct ksignal *ksig,
+ struct pt_regs *regs, sigset_t *mask)
{
struct sigframe __user *frame;
void __user *restorer;
- int err = 0;
+ int err = 0, sig = ksig->sig;
/* This is the same calculation as i386 - ((sp + 4) & 15) == 0 */
stack_top = ((stack_top + 4) & -16UL) - 4;
@@ -385,8 +384,8 @@ int setup_signal_stack_sc(unsigned long stack_top, int sig,
return 1;
restorer = frame->retcode;
- if (ka->sa.sa_flags & SA_RESTORER)
- restorer = ka->sa.sa_restorer;
+ if (ksig->ka.sa.sa_flags & SA_RESTORER)
+ restorer = ksig->ka.sa.sa_restorer;
err |= __put_user(restorer, &frame->pretcode);
err |= __put_user(sig, &frame->sig);
@@ -410,20 +409,19 @@ int setup_signal_stack_sc(unsigned long stack_top, int sig,
return err;
PT_REGS_SP(regs) = (unsigned long) frame;
- PT_REGS_IP(regs) = (unsigned long) ka->sa.sa_handler;
+ PT_REGS_IP(regs) = (unsigned long) ksig->ka.sa.sa_handler;
PT_REGS_AX(regs) = (unsigned long) sig;
PT_REGS_DX(regs) = (unsigned long) 0;
PT_REGS_CX(regs) = (unsigned long) 0;
return 0;
}
-int setup_signal_stack_si(unsigned long stack_top, int sig,
- struct k_sigaction *ka, struct pt_regs *regs,
- siginfo_t *info, sigset_t *mask)
+int setup_signal_stack_si(unsigned long stack_top, struct ksignal *ksig,
+ struct pt_regs *regs, sigset_t *mask)
{
struct rt_sigframe __user *frame;
void __user *restorer;
- int err = 0;
+ int err = 0, sig = ksig->sig;
stack_top &= -8UL;
frame = (struct rt_sigframe __user *) stack_top - 1;
@@ -431,14 +429,14 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
return 1;
restorer = frame->retcode;
- if (ka->sa.sa_flags & SA_RESTORER)
- restorer = ka->sa.sa_restorer;
+ if (ksig->ka.sa.sa_flags & SA_RESTORER)
+ restorer = ksig->ka.sa.sa_restorer;
err |= __put_user(restorer, &frame->pretcode);
err |= __put_user(sig, &frame->sig);
err |= __put_user(&frame->info, &frame->pinfo);
err |= __put_user(&frame->uc, &frame->puc);
- err |= copy_siginfo_to_user(&frame->info, info);
+ err |= copy_siginfo_to_user(&frame->info, &ksig->info);
err |= copy_ucontext_to_user(&frame->uc, &frame->fpstate, mask,
PT_REGS_SP(regs));
@@ -457,7 +455,7 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
return err;
PT_REGS_SP(regs) = (unsigned long) frame;
- PT_REGS_IP(regs) = (unsigned long) ka->sa.sa_handler;
+ PT_REGS_IP(regs) = (unsigned long) ksig->ka.sa.sa_handler;
PT_REGS_AX(regs) = (unsigned long) sig;
PT_REGS_DX(regs) = (unsigned long) &frame->info;
PT_REGS_CX(regs) = (unsigned long) &frame->uc;
@@ -502,12 +500,11 @@ struct rt_sigframe
struct _fpstate fpstate;
};
-int setup_signal_stack_si(unsigned long stack_top, int sig,
- struct k_sigaction *ka, struct pt_regs * regs,
- siginfo_t *info, sigset_t *set)
+int setup_signal_stack_si(unsigned long stack_top, struct ksignal *ksig,
+ struct pt_regs *regs, sigset_t *set)
{
struct rt_sigframe __user *frame;
- int err = 0;
+ int err = 0, sig = ksig->sig;
frame = (struct rt_sigframe __user *)
round_down(stack_top - sizeof(struct rt_sigframe), 16);
@@ -517,8 +514,8 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
goto out;
- if (ka->sa.sa_flags & SA_SIGINFO) {
- err |= copy_siginfo_to_user(&frame->info, info);
+ if (ksig->ka.sa.sa_flags & SA_SIGINFO) {
+ err |= copy_siginfo_to_user(&frame->info, &ksig->info);
if (err)
goto out;
}
@@ -543,8 +540,8 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
* already in userspace.
*/
/* x86-64 should always use SA_RESTORER. */
- if (ka->sa.sa_flags & SA_RESTORER)
- err |= __put_user(ka->sa.sa_restorer, &frame->pretcode);
+ if (ksig->ka.sa.sa_flags & SA_RESTORER)
+ err |= __put_user(ksig->ka.sa.sa_restorer, &frame->pretcode);
else
/* could use a vstub here */
return err;
@@ -570,7 +567,7 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
*/
PT_REGS_SI(regs) = (unsigned long) &frame->info;
PT_REGS_DX(regs) = (unsigned long) &frame->uc;
- PT_REGS_IP(regs) = (unsigned long) ka->sa.sa_handler;
+ PT_REGS_IP(regs) = (unsigned long) ksig->ka.sa.sa_handler;
out:
return err;
}
generated by cgit (git 2.34.1) at 2025-03-01 18:25:17 +0000