void
linux_setregs(struct lwp *l, struct exec_package *epp, vaddr_t stack)
{
struct trapframe *tf;
#ifdef USER_LDT
pmap_ldt_cleanup(l);
#endif
fpu_save_area_clear(l, __Linux_NPXCW__);
tf = l->l_md.md_regs;
tf->tf_gs = 0;
tf->tf_fs = GSEL(GUDATA_SEL, SEL_UPL);
tf->tf_es = GSEL(GUDATA_SEL, SEL_UPL);
tf->tf_ds = GSEL(GUDATA_SEL, SEL_UPL);
tf->tf_edi = 0;
tf->tf_esi = 0;
tf->tf_ebp = 0;
tf->tf_ebx = l->l_proc->p_psstrp;
tf->tf_edx = 0;
tf->tf_ecx = 0;
tf->tf_eax = 0;
tf->tf_eip = epp->ep_entry;
tf->tf_cs = GSEL(GUCODEBIG_SEL, SEL_UPL);
tf->tf_eflags = PSL_USERSET;
tf->tf_esp = stack;
tf->tf_ss = GSEL(GUDATA_SEL, SEL_UPL);
}
void
linux32_setregs(struct lwp *l, struct exec_package *pack, u_long stack)
{
struct pcb *pcb = lwp_getpcb(l);
struct trapframe *tf;
struct proc *p = l->l_proc;
/* If we were using the FPU, forget about it. */
if (pcb->pcb_fpcpu != NULL)
fpusave_lwp(l, 0);
#if defined(USER_LDT) && 0
pmap_ldt_cleanup(p);
#endif
netbsd32_adjust_limits(p);
l->l_md.md_flags &= ~MDL_USEDFPU;
l->l_md.md_flags |= MDL_COMPAT32; /* Forces iret not sysret */
pcb->pcb_flags = PCB_COMPAT32;
pcb->pcb_savefpu.fp_fxsave.fx_fcw = __Linux_NPXCW__;
pcb->pcb_savefpu.fp_fxsave.fx_mxcsr = __INITIAL_MXCSR__;
pcb->pcb_savefpu.fp_fxsave.fx_mxcsr_mask = __INITIAL_MXCSR_MASK__;
p->p_flag |= PK_32;
tf = l->l_md.md_regs;
tf->tf_rax = 0;
tf->tf_rbx = (u_int32_t)p->p_psstrp;
tf->tf_rcx = pack->ep_entry & 0xffffffff;
tf->tf_rdx = 0;
tf->tf_rsi = 0;
tf->tf_rdi = 0;
tf->tf_rbp = 0;
tf->tf_rsp = stack & 0xffffffff;
tf->tf_r8 = 0;
tf->tf_r9 = 0;
tf->tf_r10 = 0;
tf->tf_r11 = 0;
tf->tf_r12 = 0;
tf->tf_r13 = 0;
tf->tf_r14 = 0;
tf->tf_r15 = 0;
tf->tf_rip = pack->ep_entry & 0xffffffff;
tf->tf_rflags = PSL_USERSET;
tf->tf_cs = GSEL(GUCODE32_SEL, SEL_UPL);
tf->tf_ss = GSEL(GUDATA32_SEL, SEL_UPL);
tf->tf_ds = GSEL(GUDATA32_SEL, SEL_UPL);
tf->tf_es = GSEL(GUDATA32_SEL, SEL_UPL);
cpu_fsgs_zero(l);
cpu_fsgs_reload(l, GSEL(GUDATA32_SEL, SEL_UPL), GSEL(GUDATA32_SEL, SEL_UPL));
}
void
netbsd32_setregs(struct lwp *l, struct exec_package *pack, vaddr_t stack)
{
struct pcb *pcb;
struct trapframe *tf;
struct proc *p = l->l_proc;
pcb = lwp_getpcb(l);
/* If we were using the FPU, forget about it. */
if (pcb->pcb_fpcpu != NULL) {
fpusave_lwp(l, false);
}
#if defined(USER_LDT) && 0
pmap_ldt_cleanup(p);
#endif
netbsd32_adjust_limits(p);
l->l_md.md_flags &= ~MDL_USEDFPU;
l->l_md.md_flags |= MDL_COMPAT32; /* Force iret not sysret */
pcb->pcb_flags = PCB_COMPAT32;
if (pack->ep_osversion >= 699002600)
pcb->pcb_savefpu.fp_fxsave.fx_fcw = __NetBSD_NPXCW__;
else
pcb->pcb_savefpu.fp_fxsave.fx_fcw = __NetBSD_COMPAT_NPXCW__;
pcb->pcb_savefpu.fp_fxsave.fx_mxcsr = __INITIAL_MXCSR__;
pcb->pcb_savefpu.fp_fxsave.fx_mxcsr_mask = __INITIAL_MXCSR_MASK__;
p->p_flag |= PK_32;
tf = l->l_md.md_regs;
tf->tf_ds = LSEL(LUDATA32_SEL, SEL_UPL);
tf->tf_es = LSEL(LUDATA32_SEL, SEL_UPL);
cpu_fsgs_zero(l);
cpu_fsgs_reload(l, tf->tf_ds, tf->tf_es);
tf->tf_rdi = 0;
tf->tf_rsi = 0;
tf->tf_rbp = 0;
tf->tf_rbx = (uint32_t)p->p_psstrp;
tf->tf_rdx = 0;
tf->tf_rcx = 0;
tf->tf_rax = 0;
tf->tf_rip = pack->ep_entry;
tf->tf_cs = LSEL(LUCODE32_SEL, SEL_UPL);
tf->tf_rflags = PSL_USERSET;
tf->tf_rsp = stack;
tf->tf_ss = LSEL(LUDATA32_SEL, SEL_UPL);
}
void
linux32_setregs(struct lwp *l, struct exec_package *pack, u_long stack)
{
struct pcb *pcb = lwp_getpcb(l);
struct trapframe *tf;
struct proc *p = l->l_proc;
#if defined(USER_LDT) && 0
pmap_ldt_cleanup(l);
#endif
netbsd32_adjust_limits(p);
fpu_save_area_clear(l, __Linux_NPXCW__);
l->l_md.md_flags |= MDL_COMPAT32; /* Forces iret not sysret */
pcb->pcb_flags = PCB_COMPAT32;
p->p_flag |= PK_32;
tf = l->l_md.md_regs;
tf->tf_rax = 0;
tf->tf_rbx = (u_int32_t)p->p_psstrp;
tf->tf_rcx = pack->ep_entry & 0xffffffff;
tf->tf_rdx = 0;
tf->tf_rsi = 0;
tf->tf_rdi = 0;
tf->tf_rbp = 0;
tf->tf_rsp = stack & 0xffffffff;
tf->tf_r8 = 0;
tf->tf_r9 = 0;
tf->tf_r10 = 0;
tf->tf_r11 = 0;
tf->tf_r12 = 0;
tf->tf_r13 = 0;
tf->tf_r14 = 0;
tf->tf_r15 = 0;
tf->tf_rip = pack->ep_entry & 0xffffffff;
tf->tf_rflags = PSL_USERSET;
tf->tf_cs = GSEL(GUCODE32_SEL, SEL_UPL);
tf->tf_ss = GSEL(GUDATA32_SEL, SEL_UPL);
tf->tf_ds = GSEL(GUDATA32_SEL, SEL_UPL);
tf->tf_es = GSEL(GUDATA32_SEL, SEL_UPL);
cpu_fsgs_zero(l);
cpu_fsgs_reload(l, GSEL(GUDATA32_SEL, SEL_UPL), GSEL(GUDATA32_SEL, SEL_UPL));
}
void
linux_setregs(struct lwp *l, struct exec_package *epp, u_long stack)
{
struct pcb *pcb = &l->l_addr->u_pcb;
struct trapframe *tf;
#if NNPX > 0
/* If we were using the FPU, forget about it. */
if (npxproc == l)
npxdrop();
#endif
#ifdef USER_LDT
pmap_ldt_cleanup(l);
#endif
l->l_md.md_flags &= ~MDL_USEDFPU;
if (i386_use_fxsave) {
pcb->pcb_savefpu.sv_xmm.sv_env.en_cw = __Linux_NPXCW__;
pcb->pcb_savefpu.sv_xmm.sv_env.en_mxcsr = __INITIAL_MXCSR__;
} else
pcb->pcb_savefpu.sv_87.sv_env.en_cw = __Linux_NPXCW__;
tf = l->l_md.md_regs;
tf->tf_gs = GSEL(GUDATA_SEL, SEL_UPL);
tf->tf_fs = GSEL(GUDATA_SEL, SEL_UPL);
tf->tf_es = GSEL(GUDATA_SEL, SEL_UPL);
tf->tf_ds = GSEL(GUDATA_SEL, SEL_UPL);
tf->tf_edi = 0;
tf->tf_esi = 0;
tf->tf_ebp = 0;
tf->tf_ebx = (int)l->l_proc->p_psstr;
tf->tf_edx = 0;
tf->tf_ecx = 0;
tf->tf_eax = 0;
tf->tf_eip = epp->ep_entry;
tf->tf_cs = GSEL(GUCODEBIG_SEL, SEL_UPL);
tf->tf_eflags = PSL_USERSET;
tf->tf_esp = stack;
tf->tf_ss = GSEL(GUDATA_SEL, SEL_UPL);
}
/*
* Clear registers on exec
*/
void
setregs(struct proc *p, struct exec_package *pack, u_long stack,
register_t *retval)
{
struct pcb *pcb = &p->p_addr->u_pcb;
struct trapframe *tf;
/* If we were using the FPU, forget about it. */
if (p->p_addr->u_pcb.pcb_fpcpu != NULL)
fpusave_proc(p, 0);
#ifdef USER_LDT
pmap_ldt_cleanup(p);
#endif
p->p_md.md_flags &= ~MDP_USEDFPU;
pcb->pcb_flags = 0;
pcb->pcb_savefpu.fp_fxsave.fx_fcw = __INITIAL_NPXCW__;
pcb->pcb_savefpu.fp_fxsave.fx_mxcsr = __INITIAL_MXCSR__;
pcb->pcb_savefpu.fp_fxsave.fx_mxcsr_mask = __INITIAL_MXCSR_MASK__;
tf = p->p_md.md_regs;
tf->tf_ds = LSEL(LUDATA_SEL, SEL_UPL);
tf->tf_es = LSEL(LUDATA_SEL, SEL_UPL);
tf->tf_fs = LSEL(LUDATA_SEL, SEL_UPL);
tf->tf_gs = LSEL(LUDATA_SEL, SEL_UPL);
tf->tf_rdi = 0;
tf->tf_rsi = 0;
tf->tf_rbp = 0;
tf->tf_rbx = 0;
tf->tf_rdx = 0;
tf->tf_rcx = 0;
tf->tf_rax = 0;
tf->tf_rip = pack->ep_entry;
tf->tf_cs = LSEL(LUCODE_SEL, SEL_UPL);
tf->tf_rflags = PSL_USERSET;
tf->tf_rsp = stack;
tf->tf_ss = LSEL(LUDATA_SEL, SEL_UPL);
retval[1] = 0;
}
