Extends _fpstate to _xstate, in order to hold AVX/YMM registers.
Due to increased frame size, compilers might emit some warnings.
Signed-off-by: Eli Cooper <elicoo...@gmx.com>
---
arch/x86/um/signal.c | 26 +++++++++++++-------------
arch/x86/um/user-offsets.c | 2 +-
2 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/arch/x86/um/signal.c b/arch/x86/um/signal.c
index 14fcd01..e66bb06 100644
--- a/arch/x86/um/signal.c
+++ b/arch/x86/um/signal.c
@@ -225,10 +225,10 @@ static int copy_sc_from_user(struct pt_regs *regs,
} else
#endif
{
- struct user_i387_struct fp;
+ struct _xstate fp;
err = copy_from_user(&fp, (void *)sc.fpstate,
- sizeof(struct user_i387_struct));
+ sizeof(struct _xstate));
if (err)
return 1;
@@ -244,7 +244,7 @@ static int copy_sc_from_user(struct pt_regs *regs,
}
static int copy_sc_to_user(struct sigcontext __user *to,
- struct _fpstate __user *to_fp, struct pt_regs *regs,
+ struct _xstate __user *to_fp, struct pt_regs *regs,
unsigned long mask)
{
struct sigcontext sc;
@@ -310,25 +310,25 @@ static int copy_sc_to_user(struct sigcontext __user *to,
return 1;
}
- err = convert_fxsr_to_user(to_fp, &fpx);
+ err = convert_fxsr_to_user(&to_fp->fpstate, &fpx);
if (err)
return 1;
- err |= __put_user(fpx.swd, &to_fp->status);
- err |= __put_user(X86_FXSR_MAGIC, &to_fp->magic);
+ err |= __put_user(fpx.swd, &to_fp->fpstate.status);
+ err |= __put_user(X86_FXSR_MAGIC, &to_fp->fpstate.magic);
if (err)
return 1;
- if (copy_to_user(&to_fp->_fxsr_env[0], &fpx,
+ if (copy_to_user(&to_fp->fpstate._fxsr_env[0], &fpx,
sizeof(struct user_fxsr_struct)))
return 1;
} else
#endif
{
- struct user_i387_struct fp;
+ struct _xstate fp;
err = save_fp_registers(pid, (unsigned long *) &fp);
- if (copy_to_user(to_fp, &fp, sizeof(struct user_i387_struct)))
+ if (copy_to_user(to_fp, &fp, sizeof(struct _xstate)))
return 1;
}
@@ -337,7 +337,7 @@ static int copy_sc_to_user(struct sigcontext __user *to,
#ifdef CONFIG_X86_32
static int copy_ucontext_to_user(struct ucontext __user *uc,
- struct _fpstate __user *fp, sigset_t *set,
+ struct _xstate __user *fp, sigset_t *set,
unsigned long sp)
{
int err = 0;
@@ -353,7 +353,7 @@ struct sigframe
char __user *pretcode;
int sig;
struct sigcontext sc;
- struct _fpstate fpstate;
+ struct _xstate fpstate;
unsigned long extramask[_NSIG_WORDS-1];
char retcode[8];
};
@@ -366,7 +366,7 @@ struct rt_sigframe
void __user *puc;
struct siginfo info;
struct ucontext uc;
- struct _fpstate fpstate;
+ struct _xstate fpstate;
char retcode[8];
};
@@ -495,7 +495,7 @@ struct rt_sigframe
char __user *pretcode;
struct ucontext uc;
struct siginfo info;
- struct _fpstate fpstate;
+ struct _xstate fpstate;
};
int setup_signal_stack_si(unsigned long stack_top, struct ksignal *ksig,
diff --git a/arch/x86/um/user-offsets.c b/arch/x86/um/user-offsets.c
index ce7e360..bab4362 100644
--- a/arch/x86/um/user-offsets.c
+++ b/arch/x86/um/user-offsets.c
@@ -52,7 +52,7 @@ void foo(void)
DEFINE(HOST_GS, GS);
DEFINE(HOST_ORIG_AX, ORIG_EAX);
#else
- DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
+ DEFINE(HOST_FP_SIZE, sizeof(struct _xstate) / sizeof(unsigned long));
DEFINE_LONGS(HOST_BX, RBX);
DEFINE_LONGS(HOST_CX, RCX);
DEFINE_LONGS(HOST_DI, RDI);
--
2.7.2
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