Changeset View

Standalone View

Show First 20 Lines • Show All 344 Lines • ▼ Show 20 Lines	linux_ptrace_getregs_machdep(struct thread *td, pid_t pid,
l_regset->fs_base = pcb->pcb_fsbase;		l_regset->fs_base = pcb->pcb_fsbase;
l_regset->gs_base = pcb->pcb_gsbase;		l_regset->gs_base = pcb->pcb_gsbase;

error = kern_ptrace(td, PT_LWPINFO, pid, &lwpinfo, sizeof(lwpinfo));		error = kern_ptrace(td, PT_LWPINFO, pid, &lwpinfo, sizeof(lwpinfo));
if (error != 0) {		if (error != 0) {
linux_msg(td, "PT_LWPINFO failed with error %d", error);		linux_msg(td, "PT_LWPINFO failed with error %d", error);
return (error);		return (error);
}		}
if ((lwpinfo.pl_flags & PL_FLAG_SCE) != 0) {
/*
* Undo the mangling done in exception.S:fast_syscall_common().
*/
l_regset->r10 = l_regset->rcx;
}
if ((lwpinfo.pl_flags & (PL_FLAG_SCE \| PL_FLAG_SCX)) != 0) {		if ((lwpinfo.pl_flags & (PL_FLAG_SCE \| PL_FLAG_SCX)) != 0) {
/*		/*
* In Linux, the syscall number - passed to the syscall		* In Linux, the syscall number - passed to the syscall
* as rax - is preserved in orig_rax; rax gets overwritten		* as rax - is preserved in orig_rax; rax gets overwritten
* with syscall return value.		* with syscall return value.
*/		*/
l_regset->orig_rax = lwpinfo.pl_syscall_code;		l_regset->orig_rax = lwpinfo.pl_syscall_code;
}		}
▲ Show 20 Lines • Show All 109 Lines • Show Last 20 Lines