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authorJeff Dike <jdike@addtoit.com>2007-10-16 01:26:58 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:43:05 -0700
commit77bf4400319db9d2a8af6b00c2be6faa0f3d07cb (patch)
treeddc8fd48349b8d4dd2c0b26bce7f52f79b4e4077 /arch/um/sys-x86_64
parentae2587e41254e48e670346aefa332d7469d86352 (diff)
uml: remove code made redundant by CHOOSE_MODE removal
This patch makes a number of simplifications enabled by the removal of CHOOSE_MODE. There were lots of functions that looked like int foo(args){ foo_skas(args); } The bodies of foo_skas are now folded into foo, and their declarations (and sometimes entire header files) are deleted. In addition, the union uml_pt_regs, which was a union between the tt and skas register formats, is now a struct, with the tt-mode arm of the union being removed. It turns out that usr2_handler was unused, so it is gone. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/sys-x86_64')
-rw-r--r--arch/um/sys-x86_64/bugs.c2
-rw-r--r--arch/um/sys-x86_64/fault.c2
-rw-r--r--arch/um/sys-x86_64/signal.c35
-rw-r--r--arch/um/sys-x86_64/syscalls.c9
-rw-r--r--arch/um/sys-x86_64/tls.c2
5 files changed, 16 insertions, 34 deletions
diff --git a/arch/um/sys-x86_64/bugs.c b/arch/um/sys-x86_64/bugs.c
index 095478890371..506b6765bbcb 100644
--- a/arch/um/sys-x86_64/bugs.c
+++ b/arch/um/sys-x86_64/bugs.c
@@ -14,7 +14,7 @@ void arch_check_bugs(void)
{
}
-int arch_handle_signal(int sig, union uml_pt_regs *regs)
+int arch_handle_signal(int sig, struct uml_pt_regs *regs)
{
return 0;
}
diff --git a/arch/um/sys-x86_64/fault.c b/arch/um/sys-x86_64/fault.c
index 4636b1465b6c..79f37ef3dceb 100644
--- a/arch/um/sys-x86_64/fault.c
+++ b/arch/um/sys-x86_64/fault.c
@@ -14,7 +14,7 @@ struct exception_table_entry
};
const struct exception_table_entry *search_exception_tables(unsigned long add);
-int arch_fixup(unsigned long address, union uml_pt_regs *regs)
+int arch_fixup(unsigned long address, struct uml_pt_regs *regs)
{
const struct exception_table_entry *fixup;
diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c
index 2d6cdd260c26..a06d66d0c409 100644
--- a/arch/um/sys-x86_64/signal.c
+++ b/arch/um/sys-x86_64/signal.c
@@ -16,12 +16,12 @@
#include "frame_kern.h"
#include "skas.h"
-void copy_sc(union uml_pt_regs *regs, void *from)
+void copy_sc(struct uml_pt_regs *regs, void *from)
{
struct sigcontext *sc = from;
#define GETREG(regs, regno, sc, regname) \
- (regs)->skas.regs[(regno) / sizeof(unsigned long)] = (sc)->regname
+ (regs)->regs[(regno) / sizeof(unsigned long)] = (sc)->regname
GETREG(regs, R8, sc, r8);
GETREG(regs, R9, sc, r9);
@@ -46,13 +46,13 @@ void copy_sc(union uml_pt_regs *regs, void *from)
#undef GETREG
}
-static int copy_sc_from_user_skas(struct pt_regs *regs,
- struct sigcontext __user *from)
+static int copy_sc_from_user(struct pt_regs *regs,
+ struct sigcontext __user *from)
{
int err = 0;
#define GETREG(regs, regno, sc, regname) \
- __get_user((regs)->regs.skas.regs[(regno) / sizeof(unsigned long)], \
+ __get_user((regs)->regs.regs[(regno) / sizeof(unsigned long)], \
&(sc)->regname)
err |= GETREG(regs, R8, from, r8);
@@ -80,10 +80,9 @@ static int copy_sc_from_user_skas(struct pt_regs *regs,
return err;
}
-int copy_sc_to_user_skas(struct sigcontext __user *to,
- struct _fpstate __user *to_fp,
- struct pt_regs *regs, unsigned long mask,
- unsigned long sp)
+static int copy_sc_to_user(struct sigcontext __user *to,
+ struct _fpstate __user *to_fp, struct pt_regs *regs,
+ unsigned long mask, unsigned long sp)
{
struct faultinfo * fi = &current->thread.arch.faultinfo;
int err = 0;
@@ -92,7 +91,7 @@ int copy_sc_to_user_skas(struct sigcontext __user *to,
err |= __put_user(0, &to->fs);
#define PUTREG(regs, regno, sc, regname) \
- __put_user((regs)->regs.skas.regs[(regno) / sizeof(unsigned long)], \
+ __put_user((regs)->regs.regs[(regno) / sizeof(unsigned long)], \
&(sc)->regname)
err |= PUTREG(regs, RDI, to, rdi);
@@ -130,22 +129,6 @@ int copy_sc_to_user_skas(struct sigcontext __user *to,
return(err);
}
-static int copy_sc_from_user(struct pt_regs *to, void __user *from)
-{
- int ret;
-
- ret = copy_sc_from_user_skas(to, from);
- return(ret);
-}
-
-static int copy_sc_to_user(struct sigcontext __user *to,
- struct _fpstate __user *fp,
- struct pt_regs *from, unsigned long mask,
- unsigned long sp)
-{
- return copy_sc_to_user_skas(to, fp, from, mask, sp);
-}
-
struct rt_sigframe
{
char __user *pretcode;
diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c
index d44398c9d27a..bbcab773b23d 100644
--- a/arch/um/sys-x86_64/syscalls.c
+++ b/arch/um/sys-x86_64/syscalls.c
@@ -28,8 +28,7 @@ asmlinkage long sys_uname64(struct new_utsname __user * name)
return err ? -EFAULT : 0;
}
-long arch_prctl_skas(struct task_struct *task, int code,
- unsigned long __user *addr)
+long arch_prctl(struct task_struct *task, int code, unsigned long __user *addr)
{
unsigned long *ptr = addr, tmp;
long ret;
@@ -91,7 +90,7 @@ long arch_prctl_skas(struct task_struct *task, int code,
long sys_arch_prctl(int code, unsigned long addr)
{
- return arch_prctl_skas(current, code, (unsigned long __user *) addr);
+ return arch_prctl(current, code, (unsigned long __user *) addr);
}
long sys_clone(unsigned long clone_flags, unsigned long newsp,
@@ -108,10 +107,10 @@ long sys_clone(unsigned long clone_flags, unsigned long newsp,
return ret;
}
-void arch_switch_to_skas(struct task_struct *from, struct task_struct *to)
+void arch_switch_to(struct task_struct *from, struct task_struct *to)
{
if((to->thread.arch.fs == 0) || (to->mm == NULL))
return;
- arch_prctl_skas(to, ARCH_SET_FS, (void __user *) to->thread.arch.fs);
+ arch_prctl(to, ARCH_SET_FS, (void __user *) to->thread.arch.fs);
}
diff --git a/arch/um/sys-x86_64/tls.c b/arch/um/sys-x86_64/tls.c
index febbc94be25f..fcd5217c26a5 100644
--- a/arch/um/sys-x86_64/tls.c
+++ b/arch/um/sys-x86_64/tls.c
@@ -11,7 +11,7 @@ int arch_copy_tls(struct task_struct *t)
* (which is argument 5, child_tid, of clone) so it can be set
* during context switches.
*/
- t->thread.arch.fs = t->thread.regs.regs.skas.regs[R8 / sizeof(long)];
+ t->thread.arch.fs = t->thread.regs.regs.regs[R8 / sizeof(long)];
return 0;
}