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uml: remove code made redundant by CHOOSE_MODE removal

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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>
This commit is contained in:
Jeff Dike
2007-10-16 01:26:58 -07:00
committed by Linus Torvalds
parent ae2587e412
commit 77bf440031
63 changed files with 510 additions and 810 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
arch/um/os-Linux/skas/process.c
View File

@@ -131,19 +131,19 @@ void get_skas_faultinfo(int pid, struct faultinfo * fi)
}
}
static void handle_segv(int pid, union uml_pt_regs * regs)
static void handle_segv(int pid, struct uml_pt_regs * regs)
{
get_skas_faultinfo(pid, &regs->skas.faultinfo);
segv(regs->skas.faultinfo, 0, 1, NULL);
get_skas_faultinfo(pid, &regs->faultinfo);
segv(regs->faultinfo, 0, 1, NULL);
}
/*To use the same value of using_sysemu as the caller, ask it that value (in local_using_sysemu)*/
static void handle_trap(int pid, union uml_pt_regs *regs, int local_using_sysemu)
static void handle_trap(int pid, struct uml_pt_regs *regs, int local_using_sysemu)
{
int err, status;
/* Mark this as a syscall */
UPT_SYSCALL_NR(regs) = PT_SYSCALL_NR(regs->skas.regs);
UPT_SYSCALL_NR(regs) = PT_SYSCALL_NR(regs->regs);
if (!local_using_sysemu)
{
@@ -286,7 +286,7 @@ int start_userspace(unsigned long stub_stack)
return(pid);
}
void userspace(union uml_pt_regs *regs)
void userspace(struct uml_pt_regs *regs)
{
int err, status, op, pid = userspace_pid[0];
/* To prevent races if using_sysemu changes under us.*/
@@ -312,7 +312,7 @@ void userspace(union uml_pt_regs *regs)
panic("userspace - waitpid failed, errno = %d\n",
errno);
regs->skas.is_user = 1;
regs->is_user = 1;
save_registers(pid, regs);
UPT_SYSCALL_NR(regs) = -1; /* Assume: It's not a syscall */
@@ -321,7 +321,7 @@ void userspace(union uml_pt_regs *regs)
switch(sig){
case SIGSEGV:
if(PTRACE_FULL_FAULTINFO || !ptrace_faultinfo){
get_skas_faultinfo(pid, &regs->skas.faultinfo);
get_skas_faultinfo(pid, &regs->faultinfo);
(*sig_info[SIGSEGV])(SIGSEGV, regs);
}
else handle_segv(pid, regs);
@@ -351,7 +351,7 @@ void userspace(union uml_pt_regs *regs)
/* Avoid -ERESTARTSYS handling in host */
if(PT_SYSCALL_NR_OFFSET != PT_SYSCALL_RET_OFFSET)
PT_SYSCALL_NR(regs->skas.regs) = -1;
PT_SYSCALL_NR(regs->regs) = -1;
}
}
}
@@ -578,16 +578,16 @@ void reboot_skas(void)
UML_LONGJMP(&initial_jmpbuf, INIT_JMP_REBOOT);
}
void switch_mm_skas(struct mm_id *mm_idp)
void __switch_mm(struct mm_id *mm_idp)
{
int err;
/* FIXME: need cpu pid in switch_mm_skas */
/* FIXME: need cpu pid in __switch_mm */
if(proc_mm){
err = ptrace(PTRACE_SWITCH_MM, userspace_pid[0], 0,
mm_idp->u.mm_fd);
if(err)
panic("switch_mm_skas - PTRACE_SWITCH_MM failed, "
panic("__switch_mm - PTRACE_SWITCH_MM failed, "
"errno = %d\n", errno);
}
else userspace_pid[0] = mm_idp->u.pid;