arch/i386/linux_machdep.c

129 	struct trapframe *tf;
137 	tf = l->l_md.md_regs;
138 	tf->tf_gs = 0;
139 	tf->tf_fs = GSEL(GUDATA_SEL, SEL_UPL);
140 	tf->tf_es = GSEL(GUDATA_SEL, SEL_UPL);
141 	tf->tf_ds = GSEL(GUDATA_SEL, SEL_UPL);
142 	tf->tf_edi = 0;
143 	tf->tf_esi = 0;
144 	tf->tf_ebp = 0;
145 	tf->tf_ebx = l->l_proc->p_psstrp;
146 	tf->tf_edx = 0;
147 	tf->tf_ecx = 0;
148 	tf->tf_eax = 0;
149 	tf->tf_eip = epp->ep_entry;
150 	tf->tf_cs = GSEL(GUCODEBIG_SEL, SEL_UPL);
151 	tf->tf_eflags = PSL_USERSET;
152 	tf->tf_esp = stack;
153 	tf->tf_ss = GSEL(GUDATA_SEL, SEL_UPL);
178 linux_save_ucontext(struct lwp *l, struct trapframe *tf, const sigset_t *mask,
184 	linux_save_sigcontext(l, tf, mask, &uc->uc_mcontext);
190 linux_save_sigcontext(struct lwp *l, struct trapframe *tf,
196 	sc->sc_gs = tf->tf_gs;
197 	sc->sc_fs = tf->tf_fs;
198 	sc->sc_es = tf->tf_es;
199 	sc->sc_ds = tf->tf_ds;
200 	sc->sc_eflags = tf->tf_eflags;
202 	sc->sc_edi = tf->tf_edi;
203 	sc->sc_esi = tf->tf_esi;
204 	sc->sc_esp = tf->tf_esp;
205 	sc->sc_ebp = tf->tf_ebp;
206 	sc->sc_ebx = tf->tf_ebx;
207 	sc->sc_edx = tf->tf_edx;
208 	sc->sc_ecx = tf->tf_ecx;
209 	sc->sc_eax = tf->tf_eax;
210 	sc->sc_eip = tf->tf_eip;
211 	sc->sc_cs = tf->tf_cs;
212 	sc->sc_esp_at_signal = tf->tf_esp;
213 	sc->sc_ss = tf->tf_ss;
214 	sc->sc_err = tf->tf_err;
215 	sc->sc_trapno = tf->tf_trapno;
231 	struct trapframe *tf;
238 	tf = l->l_md.md_regs;
249 		fp = (struct linux_rt_sigframe *)tf->tf_esp;
253 	    onstack, fp, sig, tf->tf_eip,
271 	linux_save_ucontext(l, tf, mask, sas, &frame.sf_uc);
290 	tf->tf_fs = GSEL(GUDATA_SEL, SEL_UPL);
291 	tf->tf_es = GSEL(GUDATA_SEL, SEL_UPL);
292 	tf->tf_ds = GSEL(GUDATA_SEL, SEL_UPL);
293 	tf->tf_eip = ((int)p->p_sigctx.ps_sigcode) +
295 	tf->tf_cs = GSEL(GUCODE_SEL, SEL_UPL);
296 	tf->tf_eflags &= ~PSL_CLEARSIG;
297 	tf->tf_esp = (int)fp;
298 	tf->tf_ss = GSEL(GUDATA_SEL, SEL_UPL);
310 	struct trapframe *tf;
317 	tf = l->l_md.md_regs;
328 		fp = (struct linux_sigframe *)tf->tf_esp;
332 	    onstack, fp, sig, tf->tf_eip,
341 	linux_save_sigcontext(l, tf, mask, &frame.sf_sc);
360 	tf->tf_fs = GSEL(GUDATA_SEL, SEL_UPL);
361 	tf->tf_es = GSEL(GUDATA_SEL, SEL_UPL);
362 	tf->tf_ds = GSEL(GUDATA_SEL, SEL_UPL);
363 	tf->tf_eip = (int)p->p_sigctx.ps_sigcode;
364 	tf->tf_cs = GSEL(GUCODEBIG_SEL, SEL_UPL);
365 	tf->tf_eflags &= ~PSL_CLEARSIG;
366 	tf->tf_esp = (int)fp;
367 	tf->tf_ss = GSEL(GUDATA_SEL, SEL_UPL);
430 	struct trapframe *tf;
435 	tf = l->l_md.md_regs;
436 	DPRINTF(("sigreturn enter esp=0x%x eip=0x%x\n", tf->tf_esp, tf->tf_eip));
444 	if (((scp->sc_eflags ^ tf->tf_eflags) & PSL_USERSTATIC) != 0 ||
448 	tf->tf_gs = scp->sc_gs;
449 	tf->tf_fs = scp->sc_fs;
450 	tf->tf_es = scp->sc_es;
451 	tf->tf_ds = scp->sc_ds;
452 	tf->tf_eflags = scp->sc_eflags;
454 	tf->tf_edi = scp->sc_edi;
455 	tf->tf_esi = scp->sc_esi;
456 	tf->tf_ebp = scp->sc_ebp;
457 	tf->tf_ebx = scp->sc_ebx;
458 	tf->tf_edx = scp->sc_edx;
459 	tf->tf_ecx = scp->sc_ecx;
460 	tf->tf_eax = scp->sc_eax;
461 	tf->tf_eip = scp->sc_eip;
462 	tf->tf_cs = scp->sc_cs;
463 	tf->tf_esp = scp->sc_esp_at_signal;
464 	tf->tf_ss = scp->sc_ss;
483 	DPRINTF(("sigreturn exit esp=0x%x eip=0x%x\n", tf->tf_esp, tf->tf_eip));