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sys/amd64/ia32/ia32_signal.c
| Show First 20 Lines • Show All 529 Lines • ▼ Show 20 Lines | |||||
| #ifdef DEBUG | #ifdef DEBUG | ||||
| printf("process %ld has trashed its stack\n", (long)p->p_pid); | printf("process %ld has trashed its stack\n", (long)p->p_pid); | ||||
| #endif | #endif | ||||
| PROC_LOCK(p); | PROC_LOCK(p); | ||||
| sigexit(td, SIGILL); | sigexit(td, SIGILL); | ||||
| } | } | ||||
| regs->tf_rsp = (uintptr_t)sfp; | regs->tf_rsp = (uintptr_t)sfp; | ||||
| regs->tf_rip = p->p_sysent->sv_sigcode_base + | regs->tf_rip = PROC_SIGCODE(p) + | ||||
| VDSO_FREEBSD4_IA32_SIGCODE_OFFSET - VDSO_IA32_SIGCODE_OFFSET; | VDSO_FREEBSD4_IA32_SIGCODE_OFFSET - VDSO_IA32_SIGCODE_OFFSET; | ||||
| regs->tf_rflags &= ~(PSL_T | PSL_D); | regs->tf_rflags &= ~(PSL_T | PSL_D); | ||||
| regs->tf_cs = _ucode32sel; | regs->tf_cs = _ucode32sel; | ||||
| regs->tf_ss = _udatasel; | regs->tf_ss = _udatasel; | ||||
| regs->tf_ds = _udatasel; | regs->tf_ds = _udatasel; | ||||
| regs->tf_es = _udatasel; | regs->tf_es = _udatasel; | ||||
| set_pcb_flags(td->td_pcb, PCB_FULL_IRET); | set_pcb_flags(td->td_pcb, PCB_FULL_IRET); | ||||
| /* leave user %fs and %gs untouched */ | /* leave user %fs and %gs untouched */ | ||||
| ▲ Show 20 Lines • Show All 118 Lines • ▼ Show 20 Lines | #ifdef DEBUG | ||||
| printf("process %ld has trashed its stack\n", (long)p->p_pid); | printf("process %ld has trashed its stack\n", (long)p->p_pid); | ||||
| #endif | #endif | ||||
| PROC_LOCK(p); | PROC_LOCK(p); | ||||
| sigexit(td, SIGILL); | sigexit(td, SIGILL); | ||||
| } | } | ||||
| fpstate_drop(td); | fpstate_drop(td); | ||||
| regs->tf_rsp = (uintptr_t)sfp; | regs->tf_rsp = (uintptr_t)sfp; | ||||
| regs->tf_rip = p->p_sysent->sv_sigcode_base; | regs->tf_rip = PROC_SIGCODE(p); | ||||
| regs->tf_rflags &= ~(PSL_T | PSL_D); | regs->tf_rflags &= ~(PSL_T | PSL_D); | ||||
| regs->tf_cs = _ucode32sel; | regs->tf_cs = _ucode32sel; | ||||
| regs->tf_ss = _udatasel; | regs->tf_ss = _udatasel; | ||||
| regs->tf_ds = _udatasel; | regs->tf_ds = _udatasel; | ||||
| regs->tf_es = _udatasel; | regs->tf_es = _udatasel; | ||||
| set_pcb_flags(td->td_pcb, PCB_FULL_IRET); | set_pcb_flags(td->td_pcb, PCB_FULL_IRET); | ||||
| /* XXXKIB leave user %fs and %gs untouched */ | /* XXXKIB leave user %fs and %gs untouched */ | ||||
| PROC_LOCK(p); | PROC_LOCK(p); | ||||
| ▲ Show 20 Lines • Show All 283 Lines • Show Last 20 Lines | |||||