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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-03 21:05:40 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-03 21:05:40 -0800 |
commit | 4302d506d5f3419109abdd0d6e400ed6e8148209 (patch) | |
tree | ec8763fead6955c35eef5b284aa924fd660c4f06 /arch/x86/kernel | |
parent | ce4d72fac16a9540452957b526443b6080030bff (diff) | |
parent | 0e2815de552a638295cfdaf0865e575573bf263e (diff) | |
download | op-kernel-dev-4302d506d5f3419109abdd0d6e400ed6e8148209.zip op-kernel-dev-4302d506d5f3419109abdd0d6e400ed6e8148209.tar.gz |
Merge branch 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 sigcontext header cleanups from Ingo Molnar:
"This series reorganizes and cleans up various aspects of the main
sigcontext UAPI headers, such as unifying the data structures and
updating/adding lots of comments to explain all the ABI details and
quirks. The headers can now also be built in user-space standalone"
* 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/headers: Clean up too long lines
x86/headers: Remove <asm/sigcontext.h> references on the kernel side
x86/headers: Remove direct sigcontext32.h uses
x86/headers: Convert sigcontext_ia32 uses to sigcontext_32
x86/headers: Unify 'struct sigcontext_ia32' and 'struct sigcontext_32'
x86/headers: Make sigcontext pointers bit independent
x86/headers: Move the 'struct sigcontext' definitions into the UAPI header
x86/headers: Clean up the kernel's struct sigcontext types to be ABI-clean
x86/headers: Convert uses of _fpstate_ia32 to _fpstate_32
x86/headers: Unify 'struct _fpstate_ia32' and i386 struct _fpstate
x86/headers: Unify register type definitions between 32-bit compat and i386
x86/headers: Use ABI types consistently in sigcontext*.h
x86/headers: Separate out legacy user-space structure definitions
x86/headers: Clean up and better document uapi/asm/sigcontext.h
x86/headers: Clean up uapi/asm/sigcontext32.h
x86/headers: Fix (old) header file dependency bug in uapi/asm/sigcontext32.h
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r-- | arch/x86/kernel/asm-offsets.c | 18 | ||||
-rw-r--r-- | arch/x86/kernel/fpu/signal.c | 4 | ||||
-rw-r--r-- | arch/x86/kernel/signal.c | 4 |
3 files changed, 14 insertions, 12 deletions
diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c index 95a18e2..439df97 100644 --- a/arch/x86/kernel/asm-offsets.c +++ b/arch/x86/kernel/asm-offsets.c @@ -43,15 +43,15 @@ void common(void) { #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) BLANK(); - OFFSET(IA32_SIGCONTEXT_ax, sigcontext_ia32, ax); - OFFSET(IA32_SIGCONTEXT_bx, sigcontext_ia32, bx); - OFFSET(IA32_SIGCONTEXT_cx, sigcontext_ia32, cx); - OFFSET(IA32_SIGCONTEXT_dx, sigcontext_ia32, dx); - OFFSET(IA32_SIGCONTEXT_si, sigcontext_ia32, si); - OFFSET(IA32_SIGCONTEXT_di, sigcontext_ia32, di); - OFFSET(IA32_SIGCONTEXT_bp, sigcontext_ia32, bp); - OFFSET(IA32_SIGCONTEXT_sp, sigcontext_ia32, sp); - OFFSET(IA32_SIGCONTEXT_ip, sigcontext_ia32, ip); + OFFSET(IA32_SIGCONTEXT_ax, sigcontext_32, ax); + OFFSET(IA32_SIGCONTEXT_bx, sigcontext_32, bx); + OFFSET(IA32_SIGCONTEXT_cx, sigcontext_32, cx); + OFFSET(IA32_SIGCONTEXT_dx, sigcontext_32, dx); + OFFSET(IA32_SIGCONTEXT_si, sigcontext_32, si); + OFFSET(IA32_SIGCONTEXT_di, sigcontext_32, di); + OFFSET(IA32_SIGCONTEXT_bp, sigcontext_32, bp); + OFFSET(IA32_SIGCONTEXT_sp, sigcontext_32, sp); + OFFSET(IA32_SIGCONTEXT_ip, sigcontext_32, ip); BLANK(); OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe_ia32, uc.uc_mcontext); diff --git a/arch/x86/kernel/fpu/signal.c b/arch/x86/kernel/fpu/signal.c index eb03267..ef29b74 100644 --- a/arch/x86/kernel/fpu/signal.c +++ b/arch/x86/kernel/fpu/signal.c @@ -56,7 +56,7 @@ static inline int save_fsave_header(struct task_struct *tsk, void __user *buf) if (use_fxsr()) { struct xregs_state *xsave = &tsk->thread.fpu.state.xsave; struct user_i387_ia32_struct env; - struct _fpstate_ia32 __user *fp = buf; + struct _fpstate_32 __user *fp = buf; convert_from_fxsr(&env, tsk); @@ -165,7 +165,7 @@ int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size) if (!static_cpu_has(X86_FEATURE_FPU)) return fpregs_soft_get(current, NULL, 0, sizeof(struct user_i387_ia32_struct), NULL, - (struct _fpstate_ia32 __user *) buf) ? -1 : 1; + (struct _fpstate_32 __user *) buf) ? -1 : 1; if (fpregs_active()) { /* Save the live register state to the user directly. */ diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 32165d6..b7ffb7c 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -63,6 +63,7 @@ int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) { + unsigned long buf_val; void __user *buf; unsigned int tmpflags; unsigned int err = 0; @@ -107,7 +108,8 @@ int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS); regs->orig_ax = -1; /* disable syscall checks */ - get_user_ex(buf, &sc->fpstate); + get_user_ex(buf_val, &sc->fpstate); + buf = (void __user *)buf_val; } get_user_catch(err); err |= fpu__restore_sig(buf, config_enabled(CONFIG_X86_32)); |