diff options
Diffstat (limited to 'arch/um/sys-x86_64')
| -rw-r--r-- | arch/um/sys-x86_64/Makefile | 9 | ||||
| -rw-r--r-- | arch/um/sys-x86_64/signal.c | 50 | ||||
| -rw-r--r-- | arch/um/sys-x86_64/syscalls.c | 31 | ||||
| -rw-r--r-- | arch/um/sys-x86_64/unmap.c | 25 |
4 files changed, 2 insertions, 113 deletions
diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile index ea8185d..002bb02 100644 --- a/arch/um/sys-x86_64/Makefile +++ b/arch/um/sys-x86_64/Makefile @@ -5,10 +5,9 @@ # obj-y = bug.o bugs.o delay.o fault.o ldt.o mem.o ptrace.o ptrace_user.o \ - setjmp.o sigcontext.o signal.o syscalls.o syscall_table.o sysrq.o \ - ksyms.o tls.o + setjmp.o sigcontext.o signal.o stub.o stub_segv.o syscalls.o \ + syscall_table.o sysrq.o ksyms.o tls.o -obj-$(CONFIG_MODE_SKAS) += stub.o stub_segv.o obj-$(CONFIG_MODULES) += um_module.o subarch-obj-y = lib/bitops_64.o lib/csum-partial_64.o lib/memcpy_64.o lib/thunk_64.o @@ -21,11 +20,7 @@ USER_OBJS := ptrace_user.o sigcontext.o USER_OBJS += user-offsets.s extra-y += user-offsets.s -extra-$(CONFIG_MODE_TT) += unmap.o - UNPROFILE_OBJS := stub_segv.o CFLAGS_stub_segv.o := $(CFLAGS_NO_HARDENING) include arch/um/scripts/Makefile.rules - -$(obj)/unmap.%: _c_flags = $(call unprofile,$(CFLAGS)) diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c index fe8ec04..c18d929 100644 --- a/arch/um/sys-x86_64/signal.c +++ b/arch/um/sys-x86_64/signal.c @@ -15,9 +15,6 @@ #include "choose-mode.h" #include "sysdep/ptrace.h" #include "frame_kern.h" - -#ifdef CONFIG_MODE_SKAS - #include "skas.h" void copy_sc(union uml_pt_regs *regs, void *from) @@ -134,53 +131,6 @@ int copy_sc_to_user_skas(struct sigcontext __user *to, return(err); } -#endif - -#ifdef CONFIG_MODE_TT -int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext __user *from, - int fpsize) -{ - struct _fpstate *to_fp; - struct _fpstate __user *from_fp; - unsigned long sigs; - int err; - - to_fp = to->fpstate; - sigs = to->oldmask; - err = copy_from_user(to, from, sizeof(*to)); - from_fp = to->fpstate; - to->fpstate = to_fp; - to->oldmask = sigs; - if(to_fp != NULL) - err |= copy_from_user(to_fp, from_fp, fpsize); - return(err); -} - -int copy_sc_to_user_tt(struct sigcontext __user *to, struct _fpstate __user *fp, - struct sigcontext *from, int fpsize, unsigned long sp) -{ - struct _fpstate __user *to_fp; - struct _fpstate *from_fp; - int err; - - to_fp = (fp ? fp : (struct _fpstate __user *) (to + 1)); - from_fp = from->fpstate; - err = copy_to_user(to, from, sizeof(*to)); - /* The SP in the sigcontext is the updated one for the signal - * delivery. The sp passed in is the original, and this needs - * to be restored, so we stick it in separately. - */ - err |= copy_to_user(&SC_SP(to), &sp, sizeof(sp)); - - if(from_fp != NULL){ - err |= copy_to_user(&to->fpstate, &to_fp, sizeof(to->fpstate)); - err |= copy_to_user(to_fp, from_fp, fpsize); - } - return err; -} - -#endif - static int copy_sc_from_user(struct pt_regs *to, void __user *from) { int ret; diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c index b3f6350..d0ff832 100644 --- a/arch/um/sys-x86_64/syscalls.c +++ b/arch/um/sys-x86_64/syscalls.c @@ -29,36 +29,6 @@ asmlinkage long sys_uname64(struct new_utsname __user * name) return err ? -EFAULT : 0; } -#ifdef CONFIG_MODE_TT -extern long arch_prctl(int code, unsigned long addr); - -static long arch_prctl_tt(int code, unsigned long addr) -{ - unsigned long tmp; - long ret; - - switch(code){ - case ARCH_SET_GS: - case ARCH_SET_FS: - ret = arch_prctl(code, addr); - break; - case ARCH_GET_FS: - case ARCH_GET_GS: - ret = arch_prctl(code, (unsigned long) &tmp); - if(!ret) - ret = put_user(tmp, (long __user *)addr); - break; - default: - ret = -EINVAL; - break; - } - - return(ret); -} -#endif - -#ifdef CONFIG_MODE_SKAS - long arch_prctl_skas(struct task_struct *task, int code, unsigned long __user *addr) { @@ -119,7 +89,6 @@ long arch_prctl_skas(struct task_struct *task, int code, return ret; } -#endif long sys_arch_prctl(int code, unsigned long addr) { diff --git a/arch/um/sys-x86_64/unmap.c b/arch/um/sys-x86_64/unmap.c deleted file mode 100644 index f4a4bff..0000000 --- a/arch/um/sys-x86_64/unmap.c +++ /dev/null @@ -1,25 +0,0 @@ -/* - * Copyright (C) 2000 Jeff Dike (jdike@karaya.com) - * Licensed under the GPL - */ - -#include <linux/mman.h> -#include <asm/unistd.h> - -static int errno; - -static inline _syscall2(int,munmap,void *,start,size_t,len) -static inline _syscall6(void *,mmap,void *,addr,size_t,len,int,prot,int,flags,int,fd,off_t,offset) -int switcheroo(int fd, int prot, void *from, void *to, int size) -{ - if(munmap(to, size) < 0){ - return(-1); - } - if(mmap(to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) == (void*) -1){ - return(-1); - } - if(munmap(from, size) < 0){ - return(-1); - } - return(0); -} |
