51 lines
1.3 KiB
ArmAsm
51 lines
1.3 KiB
ArmAsm
/* $FreeBSD$ */
|
|
|
|
#include <machine/asm.h>
|
|
#include <linux_syscall.h>
|
|
|
|
|
|
/*
|
|
* Signal "trampoline" code. Invoked from RTE setup by sendsig().
|
|
*
|
|
* On entry, stack & registers look like:
|
|
*
|
|
* a0 signal number
|
|
* a1 pointer to siginfo_t
|
|
* a2 pointer to signal context frame (scp)
|
|
* a3 address of handler
|
|
* sp+0 saved hardware state
|
|
* .
|
|
* .
|
|
* scp+0 beginning of signal context frame
|
|
*/
|
|
|
|
/*
|
|
* System call glue.
|
|
*/
|
|
#define LINUX_SYSCALLNUM(name) \
|
|
___CONCAT(LINUX_SYS_,name)
|
|
|
|
#define LINUX_CALLSYS_NOERROR(name) \
|
|
ldiq v0, LINUX_SYSCALLNUM(name); \
|
|
call_pal PAL_OSF1_callsys
|
|
|
|
|
|
|
|
NESTED(linux_sigcode,0,0,ra,0,0)
|
|
lda sp, -16(sp) /* save the sigcontext pointer */
|
|
stq a2, 0(sp)
|
|
jsr ra, (t12) /* call the signal handler (t12==pv) */
|
|
ldq a0, 0(sp) /* get the sigcontext pointer */
|
|
lda sp, 16(sp)
|
|
/* and call sigreturn() with it. */
|
|
LINUX_CALLSYS_NOERROR(osf1_sigreturn)
|
|
mov v0, a0 /* if that failed, get error code */
|
|
LINUX_CALLSYS_NOERROR(exit) /* and call exit() with it. */
|
|
XNESTED(linux_esigcode,0)
|
|
END(linux_sigcode)
|
|
|
|
.data
|
|
EXPORT(linux_szsigcode)
|
|
.quad linux_esigcode-linux_sigcode
|
|
.text
|