src/sys/arch/i386/i386/locore.S - diff

Return to locore.S CVS log

Up to [cvs.NetBSD.org] / src / sys / arch / i386 / i386

Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.

version 1.20, 2003/11/04 10:33:15

version 1.21, 2004/01/04 11:44:52

Line 2028 ENTRY(cpu_switchto)

jmp switch_resume

* void switch_exit(struct lwp *l, void (*exit)(struct lwp *));

* void cpu_exit(struct lwp *l)

* Switch to the appropriate idle context (lwp0's if uniprocessor; the cpu's

* if multiprocessor) and deallocate the address space and kernel stack for p.

* Then jump into cpu_switch(), as if we were in the idle proc all along.

Line 2038 ENTRY(cpu_switchto)

#endif

.globl _C_LABEL(uvmspace_free),_C_LABEL(kernel_map)

.globl _C_LABEL(uvm_km_free),_C_LABEL(tss_free)

/* LINTSTUB: Func: void switch_exit(struct lwp *l, void (*exit)(struct lwp *)) */

/* LINTSTUB: Func: void cpu_exit(struct lwp *l) */

ENTRY(switch_exit)

ENTRY(cpu_exit)

movl 4(%esp),%edi # old process

movl 8(%esp),%eax # exit func

#ifndef MULTIPROCESSOR

movl $_C_LABEL(lwp0),%ebx

movl L_ADDR(%ebx),%esi

Line 2060 ENTRY(switch_exit)

Line 2059 ENTRY(switch_exit)

movl PCB_ESP(%esi),%esp

movl PCB_EBP(%esi),%ebp

/* Save exit func. */

pushl %eax

/* Load TSS info. */

#ifdef MULTIPROCESSOR

movl CPUVAR(GDT),%eax

Line 2092 ENTRY(switch_exit)

Line 2088 ENTRY(switch_exit)

sti

* Schedule the dead process's vmspace and stack to be freed.

* Schedule the dead LWP's stack to be freed.

movl 0(%esp),%eax /* %eax = exit func */

pushl %edi

movl %edi,0(%esp) /* {lwp_}exit2(l) */

call _C_LABEL(lwp_exit2)

call *%eax

addl $4,%esp

/* Jump into cpu_switch() with the right state. */