np2/i386c/ia32/exception.c - diff

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Diff for /np2/i386c/ia32/exception.c between versions 1.28 and 1.39

version 1.28, 2011/12/21 16:25:52	version 1.39, 2012/06/18 14:33:38
Line 61 static const int dftable[4][4] = {	Line 61 static const int dftable[4][4] = {
{ 1, 1, 1, 1, },	{ 1, 1, 1, 1, },
};	};

void	void CPUCALL
exception(int num, int error_code)	exception(int num, int error_code)
{	{
	#if defined(DEBUG)
	extern int cpu_debug_rep_cont;
	extern CPU_REGS cpu_debug_rep_regs;
	#endif
int errorp = 0;	int errorp = 0;

__ASSERT((unsigned int)num < EXCEPTION_NUM);	__ASSERT((unsigned int)num < EXCEPTION_NUM);
Line 76 exception(int num, int error_code)	Line 80 exception(int num, int error_code)
VERBOSE(("exception: -------------------------------------------------------------- start"));	VERBOSE(("exception: -------------------------------------------------------------- start"));
VERBOSE(("exception: %s, error_code = %x at %04x:%08x", exception_str[num], error_code, CPU_CS, CPU_PREV_EIP));	VERBOSE(("exception: %s, error_code = %x at %04x:%08x", exception_str[num], error_code, CPU_CS, CPU_PREV_EIP));
VERBOSE(("%s", cpu_reg2str()));	VERBOSE(("%s", cpu_reg2str()));
	VERBOSE(("code: %dbit(%dbit), address: %dbit(%dbit)", CPU_INST_OP32 ? 32 : 16, CPU_STATSAVE.cpu_inst_default.op_32 ? 32 : 16, CPU_INST_AS32 ? 32 : 16, CPU_STATSAVE.cpu_inst_default.as_32 ? 32 : 16));
	#if defined(DEBUG)
	if (cpu_debug_rep_cont) {
	VERBOSE(("rep: original regs: ecx=%08x, esi=%08x, edi=%08x", cpu_debug_rep_regs.reg[CPU_ECX_INDEX].d, cpu_debug_rep_regs.reg[CPU_ESI_INDEX].d, cpu_debug_rep_regs.reg[CPU_EDI_INDEX].d));
	}
	VERBOSE(("%s", cpu_disasm2str(CPU_PREV_EIP)));
	#endif

CPU_STAT_EXCEPTION_COUNTER_INC();	CPU_STAT_EXCEPTION_COUNTER_INC();
if ((CPU_STAT_EXCEPTION_COUNTER >= 3)	if ((CPU_STAT_EXCEPTION_COUNTER >= 3)
Line 85 exception(int num, int error_code)	Line 96 exception(int num, int error_code)
}	}

switch (num) {	switch (num) {
case DE_EXCEPTION: /* (F) 輪遙巨仿□ */	case DE_EXCEPTION: /* (F) 輪遙巨仿□ */
case DB_EXCEPTION: /* (F/T) 犯田永弘 */	case DB_EXCEPTION: /* (F/T) 犯田永弘 */
case BR_EXCEPTION: /* (F) BOUND 及＇區陸 */	case BR_EXCEPTION: /* (F) BOUND 及＇區陸 */
case UD_EXCEPTION: /* (F) 拑躲左矢戊□玉 */	case UD_EXCEPTION: /* (F) 拑躲左矢戊□玉 */
case NM_EXCEPTION: /* (F) 犯田奶旦銀迕尕第 (FPU 互拑中) */	case NM_EXCEPTION: /* (F) 犯田奶旦銀迕尕第 (FPU 互拑中) */
case MF_EXCEPTION: /* (F) 忏⑹凝醒鰾巨仿□ */	case MF_EXCEPTION: /* (F) 忏⑹凝醒鰾巨仿□ */
CPU_EIP = CPU_PREV_EIP;	CPU_EIP = CPU_PREV_EIP;
if (CPU_STATSAVE.cpu_stat.backout_sp)	if (CPU_STATSAVE.cpu_stat.backout_sp)
CPU_ESP = CPU_PREV_ESP;	CPU_ESP = CPU_PREV_ESP;
/FALLTHROUGH/	/FALLTHROUGH/
case NMI_EXCEPTION: /* (I) NMI 喃曰慇心 */	case NMI_EXCEPTION: /* (I) NMI 喃曰慇心 */
case BP_EXCEPTION: /* (T) 皮伊□弁禾奶件玄 */	case BP_EXCEPTION: /* (T) 皮伊□弁禾奶件玄 */
case OF_EXCEPTION: /* (T) 左□田□白伕□ */	case OF_EXCEPTION: /* (T) 左□田□白伕□ */
errorp = 0;	errorp = 0;
break;	break;

case DF_EXCEPTION: /* (A) ’正’亥’鬺交’孕’鬺生 (errcode: 0) */	case DF_EXCEPTION: /* (A) 樍c怒押�(errcode: 0) */
errorp = 1;	errorp = 1;
error_code = 0;	error_code = 0;
break;	break;

case AC_EXCEPTION: /* (F) 失仿奶件丟件玄民尼永弁 (errcode: 0) */	case AC_EXCEPTION: /* (F) 槻＞樍孕槻﹜樍它樍﹝樍它樍啣丟槻央樍血仃 (errcode: 0) */
error_code = 0;	error_code = 0;
/FALLTHROUGH/	/FALLTHROUGH/
case TS_EXCEPTION: /* (F) 白左弁TSS (errcode) */	case TS_EXCEPTION: /* (F) 拑躲 TSS (errcode) */
case NP_EXCEPTION: /* (F) ’扔’□’漰韞�埏(errcode) */	case NP_EXCEPTION: /* (F) 本弘丟件玄尕箕 (errcode) */
case SS_EXCEPTION: /* (F) 旦正永弁本弘丟件玄白巧伙玄 (errcode) */	case SS_EXCEPTION: /* (F) 旦正永弁本弘丟件玄白巧伙玄 (errcode) */
case GP_EXCEPTION: /* (F) 域�忡賃拺陸 (errcode) */	case GP_EXCEPTION: /* (F) 域�忡賃拺陸 (errcode) */
case PF_EXCEPTION: /* (F) 矢□斥白巧伙玄 (errcode) */	case PF_EXCEPTION: /* (F) 矢□斥白巧伙玄 (errcode) */
CPU_EIP = CPU_PREV_EIP;	CPU_EIP = CPU_PREV_EIP;
if (CPU_STATSAVE.cpu_stat.backout_sp)	if (CPU_STATSAVE.cpu_stat.backout_sp)
CPU_ESP = CPU_PREV_ESP;	CPU_ESP = CPU_PREV_ESP;
Line 136 exception(int num, int error_code)	Line 147 exception(int num, int error_code)

VERBOSE(("exception: ---------------------------------------------------------------- end"));	VERBOSE(("exception: ---------------------------------------------------------------- end"));

interrupt(num, INTR_TYPE_EXTINTR, errorp, error_code);	interrupt(num, INTR_TYPE_EXCEPTION, errorp, error_code);
#if defined(IA32_SUPPORT_DEBUG_REGISTER)
if (num != BP_EXCEPTION) {
if (CPU_INST_OP32) {
set_eflags(REAL_EFLAGREG\|RF_FLAG, RF_FLAG);
}
}
#endif
CPU_STAT_EXCEPTION_COUNTER_CLEAR();	CPU_STAT_EXCEPTION_COUNTER_CLEAR();
siglongjmp(exec_1step_jmpbuf, 1);	siglongjmp(exec_1step_jmpbuf, 1);
}	}

/*	/*
* ’它﹝扑’鬕仲’奶﹝扑’生﹝仲’甘’＝’弗’永’籈仿’末	* 槻它樍扑樍巧樍扔槻奶樍扑樍啣汗樍桀丰槻弗槻永樍尼樍拻切
*	*
* 31 16 15 14 13 12 8 7 5 4 0	* 31 16 15 14 13 12 8 7 5 4 0
* +------------------------------------+--+-----+----------+-----+---------+	* +------------------------------------+--+-----+----------+-----+---------+
* \| ’尼’交’扔’氾’生 31..16 \| P\| DPL \| 0 D 1 0 0\|0 0 0\|’巧’仲’韞\| 4	* \| 左白本永玄 31..16 \| P\| DPL \| 0 D 1 0 0\|0 0 0\|市它件玄 \| 4
* +------------------------------------+--+-----+----------+-----+---------+	* +------------------------------------+--+-----+----------+-----+---------+
* 31 16 15 0	* 31 16 15 0
* +------------------------------------+-----------------------------------+	* +------------------------------------+-----------------------------------+
* \| 本弘丟件玄’本伊弁正 \| 左白本永玄 15..0 \| 0	* \| 槻扔槻□樍﹝樍它樍啣汗槻扔樍乓槻永槻末 \| 槻尼樍忴公樍血亥 15..0 \| 0
* +------------------------------------+-----------------------------------+	* +------------------------------------+-----------------------------------+
*/	*/

/*	/*
* 它閬藾′’甘’＝’弗’永’籈仿’末	* 澭奶槻湊本扑槦末樍桀丰槻弗槻永樍尼樍拻切
*--	*--
* ’末’弗’永﹝仲’奶﹝扑’生	* 槻末槻弗槻永樍扔槻奶樍扑樍� *
* 31 16 15 14 13 12 8 7 0	* 31 16 15 14 13 12 8 7 0
* +------------------------------------+--+-----+----------+---------------+	* +------------------------------------+--+-----+----------+---------------+
Line 172 exception(int num, int error_code)	Line 176 exception(int num, int error_code)
* +------------------------------------+--+-----+----------+---------------+	* +------------------------------------+--+-----+----------+---------------+
* 31 16 15 0	* 31 16 15 0
* +------------------------------------+-----------------------------------+	* +------------------------------------+-----------------------------------+
* \| TSS 本弘丟件玄’本伊弁正 \| Reserved \| 0	* \| TSS 槻扔槻□樍﹝樍它樍啣汗槻扔樍乓槻永槻末 \| Reserved \| 0
* +------------------------------------+-----------------------------------+	* +------------------------------------+-----------------------------------+
*--	*--
* 它閬藾+ * 喃曰慇心’必□玄
*	*
* 31 16 15 14 13 12 8 7 5 4 0	* 31 16 15 14 13 12 8 7 5 4 0
* +------------------------------------+--+-----+----------+-----+---------+	* +------------------------------------+--+-----+----------+-----+---------+
* \| ’尼’交’扔’氾’生 31..16 \| P\| DPL \| 0 D 1 1 0\|0 0 0\|Reserved \| 4	* \| 槻尼樍忴公樍血亥 31..16 \| P\| DPL \| 0 D 1 1 0\|0 0 0\|Reserved \| 4
* +------------------------------------+--+-----+----------+-----+---------+	* +------------------------------------+--+-----+----------+-----+---------+
* 31 16 15 0	* 31 16 15 0
* +------------------------------------+-----------------------------------+	* +------------------------------------+-----------------------------------+
* \| ’扔’□’漰韞龰戎誑鴠砲 \| 左白本永玄 15..0 \| 0	* \| 槻扔槻□樍﹝樍它樍啣汗槻扔樍乓槻永槻末 \| 槻尼樍忴公樍血亥 15..0 \| 0
* +------------------------------------+-----------------------------------+	* +------------------------------------+-----------------------------------+
*--	*--
* ’生’穨氾’仿﹝仲’奶﹝扑’生	* 樍啣托樍血份樍扔槻奶樍扑樍� *
* 31 16 15 14 13 12 8 7 5 4 0	* 31 16 15 14 13 12 8 7 5 4 0
* +------------------------------------+--+-----+----------+-----+---------+	* +------------------------------------+--+-----+----------+-----+---------+
* \| 左白本永玄 31..16 \| P\| DPL \| 0 D 1 1 1\|0 0 0\|Reserved \| 4	* \| 槻尼樍忴公樍血亥 31..16 \| P\| DPL \| 0 D 1 1 1\|0 0 0\|Reserved \| 4
* +------------------------------------+--+-----+----------+-----+---------+	* +------------------------------------+--+-----+----------+-----+---------+
* 31 16 15 0	* 31 16 15 0
* +------------------------------------+-----------------------------------+	* +------------------------------------+-----------------------------------+
* \| ’扔’□’漰𢦀生﹝仲’扔’孎永’末 \| ’尼’交’扔’氾’生 15..0 \| 0	* \| 槻扔槻□樍﹝樍它樍啣汗槻扔樍乓槻永槻末 \| 槻尼樍忴公樍血亥 15..0 \| 0
* +------------------------------------+-----------------------------------+	* +------------------------------------+-----------------------------------+
*--	*--
* DPL : ’甘’＝’弗’永’籈仿’末瓦氾弁＞’孎伙’- * 左白本永玄 : 皿伕扑□斥乓’巨件玄伉’禾奶件玄引匹及左白本永玄	* DPL : 犯奴旦弁伉皿正冂腺伊矛伙
* P : 本弘丟件玄繡箕白仿弘	* 左白本永玄 : 皿伕扑□斥乓’巨件玄伉’禾奶件玄引匹及左白本永玄
* 本伊弁正 : 犯奴旦氾奴生□扑亦件’戊□玉’本弘丟件玄及本弘丟件玄’本伊弁正	* P : 本弘丟件玄繡箕白仿弘
* D : 必□玄及扔奶朮‘0 = 16 bit, 1 = 32 bit	* 本伊弁正 : 犯奴旦氾奴生□扑亦件’戊□玉’本弘丟件玄及本弘丟件玄’本伊弁正
	* D : 必□玄及扔奶朮‘0 = 16 bit, 1 = 32 bit
*/	*/

static void interrupt_task_gate(const descriptor_t *gsdp, int intrtype, int errorp, int error_code);	static void CPUCALL interrupt_task_gate(const descriptor_t *gsdp, int intrtype, int errorp, int error_code);
static void interrupt_intr_or_trap(const descriptor_t *gsdp, int intrtype, int errorp, int error_code);	static void CPUCALL interrupt_intr_or_trap(const descriptor_t *gsdp, int intrtype, int errorp, int error_code);

void	void CPUCALL
interrupt(int num, int intrtype, int errorp, int error_code)	interrupt(int num, int intrtype, int errorp, int error_code)
{	{
descriptor_t gsd;	descriptor_t gsd;
Line 216 interrupt(int num, int intrtype, int err	Line 220 interrupt(int num, int intrtype, int err
UINT16 new_cs;	UINT16 new_cs;
int exc_errcode;	int exc_errcode;

VERBOSE(("interrupt: num = 0x%02x, intrtype = %s, errorp = %s, error_code = %08x", num, intrtype ? "on" : "off", errorp ? "on" : "off", error_code));	VERBOSE(("interrupt: num = 0x%02x, intrtype = %s, errorp = %s, error_code = %08x", num, (intrtype == INTR_TYPE_EXTINTR) ? "external" : (intrtype == INTR_TYPE_EXCEPTION ? "exception" : "softint"), errorp ? "on" : "off", error_code));

CPU_SET_PREV_ESP();	CPU_SET_PREV_ESP();

Line 297 interrupt(int num, int intrtype, int err	Line 301 interrupt(int num, int intrtype, int err
break;	break;
}	}

/* 5.10.1.1. 拺陸▼喃曰慇心甩件玉仿’皿伕扑□斥乓及忡賃 */	/* 5.10.1.1. 靘▼喃曰慇心甩件玉仿’皿伕扑□斥乓及忡賃 */
if ((intrtype != INTR_TYPE_EXTINTR) && (gsd.dpl < CPU_STAT_CPL)) {	if ((intrtype == INTR_TYPE_SOFTINTR) && (gsd.dpl < CPU_STAT_CPL)) {
VERBOSE(("interrupt: intrtype(%d) && DPL(%d) < CPL(%d)", intrtype, gsd.dpl, CPU_STAT_CPL));	VERBOSE(("interrupt: intrtype(softint) && DPL(%d) < CPL(%d)", gsd.dpl, CPU_STAT_CPL));
EXCEPTION(GP_EXCEPTION, exc_errcode);	EXCEPTION(GP_EXCEPTION, exc_errcode);
}	}

Line 337 interrupt(int num, int intrtype, int err	Line 341 interrupt(int num, int intrtype, int err
CPU_CLEAR_PREV_ESP();	CPU_CLEAR_PREV_ESP();
}	}

static void	static void CPUCALL
interrupt_task_gate(const descriptor_t *gsdp, int intrtype, int errorp, int error_code)	interrupt_task_gate(const descriptor_t *gsdp, int intrtype, int errorp, int error_code)
{	{
selector_t task_sel;	selector_t task_sel;
Line 378 interrupt_task_gate(const descriptor_t *	Line 382 interrupt_task_gate(const descriptor_t *
CPU_SET_PREV_ESP();	CPU_SET_PREV_ESP();

if (errorp) {	if (errorp) {
XPUSH0(error_code);	VERBOSE(("interrupt: push error code (%08x)", error_code));
	if (task_sel.desc.type == CPU_SYSDESC_TYPE_TSS_32) {
	PUSH0_32(error_code);
	} else {
	PUSH0_16(error_code);
	}
}	}

/* out of range */	/* out of range */
Line 388 interrupt_task_gate(const descriptor_t *	Line 397 interrupt_task_gate(const descriptor_t *
}	}
}	}

static void	static void CPUCALL
interrupt_intr_or_trap(const descriptor_t *gsdp, int intrtype, int errorp, int error_code)	interrupt_intr_or_trap(const descriptor_t *gsdp, int intrtype, int errorp, int error_code)
{	{
selector_t cs_sel, ss_sel;	selector_t cs_sel, ss_sel;
Line 400 interrupt_intr_or_trap(const descriptor_	Line 409 interrupt_intr_or_trap(const descriptor_
UINT32 new_ip, new_sp;	UINT32 new_ip, new_sp;
UINT32 old_ip, old_sp;	UINT32 old_ip, old_sp;
UINT16 old_cs, old_ss, new_ss;	UINT16 old_cs, old_ss, new_ss;
	BOOL is32bit;
int exc_errcode;	int exc_errcode;
int rv;	int rv;

Line 462 interrupt_intr_or_trap(const descriptor_	Line 472 interrupt_intr_or_trap(const descriptor_
EXCEPTION(NP_EXCEPTION, exc_errcode);	EXCEPTION(NP_EXCEPTION, exc_errcode);
}	}

	is32bit = gsdp->type & CPU_SYSDESC_TYPE_32BIT;
if (!SEG_IS_CONFORMING_CODE(&cs_sel.desc) && (cs_sel.desc.dpl < CPU_STAT_CPL)) {	if (!SEG_IS_CONFORMING_CODE(&cs_sel.desc) && (cs_sel.desc.dpl < CPU_STAT_CPL)) {
stacksize = errorp ? 12 : 10;	stacksize = errorp ? 12 : 10;
if (!CPU_STAT_VM86) {	if (!CPU_STAT_VM86) {
Line 476 interrupt_intr_or_trap(const descriptor_	Line 487 interrupt_intr_or_trap(const descriptor_
}	}
stacksize += 8;	stacksize += 8;
}	}
if (gsdp->type & CPU_SYSDESC_TYPE_32BIT) {	if (is32bit) {
stacksize *= 2;	stacksize *= 2;
}	}

Line 527 interrupt_intr_or_trap(const descriptor_	Line 538 interrupt_intr_or_trap(const descriptor_
}	}

/* check stack room size */	/* check stack room size */
cpu_stack_push_check(ss_sel.idx, &ss_sel.desc, new_sp, stacksize);	cpu_stack_push_check(ss_sel.idx, &ss_sel.desc, new_sp, stacksize, ss_sel.desc.d);

/* out of range */	/* out of range */
if (new_ip > cs_sel.desc.u.seg.limit) {	if (new_ip > cs_sel.desc.u.seg.limit) {
Line 541 interrupt_intr_or_trap(const descriptor_	Line 552 interrupt_intr_or_trap(const descriptor_
load_cs(cs_sel.selector, &cs_sel.desc, cs_sel.desc.dpl);	load_cs(cs_sel.selector, &cs_sel.desc, cs_sel.desc.dpl);
CPU_EIP = new_ip;	CPU_EIP = new_ip;

if (gsdp->type & CPU_SYSDESC_TYPE_32BIT) {	if (is32bit) {
if (CPU_STAT_VM86) {	if (CPU_STAT_VM86) {
PUSH0_32(CPU_GS);	PUSH0_32(CPU_GS);
PUSH0_32(CPU_FS);	PUSH0_32(CPU_FS);
Line 584 interrupt_intr_or_trap(const descriptor_	Line 595 interrupt_intr_or_trap(const descriptor_
EXCEPTION(GP_EXCEPTION, exc_errcode);	EXCEPTION(GP_EXCEPTION, exc_errcode);
}	}
if (!SEG_IS_CONFORMING_CODE(&cs_sel.desc) && (cs_sel.desc.dpl != CPU_STAT_CPL)) {	if (!SEG_IS_CONFORMING_CODE(&cs_sel.desc) && (cs_sel.desc.dpl != CPU_STAT_CPL)) {
VERBOSE(("interrupt: %sCONFORMING-CODE-SEGMENT(%s) && DPL[CS](%d) != CPL", SEG_IS_CONFORMING_CODE(&cs_sel.desc) ? "" : "NON-", cs_sel.desc.dpl, CPU_STAT_CPL));	VERBOSE(("interrupt: %sCONFORMING-CODE-SEGMENT(%d) && DPL[CS](%d) != CPL", SEG_IS_CONFORMING_CODE(&cs_sel.desc) ? "" : "NON-", cs_sel.desc.dpl, CPU_STAT_CPL));
EXCEPTION(GP_EXCEPTION, exc_errcode);	EXCEPTION(GP_EXCEPTION, exc_errcode);
}	}

VERBOSE(("interrupt: INTRA-PRIVILEGE-LEVEL-INTERRUPT"));	VERBOSE(("interrupt: INTRA-PRIVILEGE-LEVEL-INTERRUPT"));

stacksize = errorp ? 8 : 6;	stacksize = errorp ? 8 : 6;
if (gsdp->type & CPU_SYSDESC_TYPE_32BIT) {	if (is32bit) {
stacksize *= 2;	stacksize *= 2;
}	}

Line 601 interrupt_intr_or_trap(const descriptor_	Line 612 interrupt_intr_or_trap(const descriptor_
} else {	} else {
sp = CPU_SP;	sp = CPU_SP;
}	}
SS_PUSH_CHECK(sp, stacksize);	/*
	* 17.1
	* 戊□伙必□玄﹜喃曰慇心必□玄﹜引凶反玄仿永皿必□玄毛騷元化
	* 皿伕弘仿丞及孺豢毛職及戊□玉’本弘丟件玄卞啖墊允月午五反﹜
	* 啖墊醱卞銀迕今木月左矢仿件玉’扔奶朮反銀迕今木月必□玄及
	* 正奶皿﹋16 申永玄引凶反32 申永玄﹌卞方勻化瑁引月﹋啖墊抰
	* 挓及D 白仿弘﹜皿伉白奴永弁旦及中內木卞手方日卅中﹌﹝
	*/
	SS_PUSH_CHECK1(sp, stacksize, is32bit);

/* out of range */	/* out of range */
if (new_ip > cs_sel.desc.u.seg.limit) {	if (new_ip > cs_sel.desc.u.seg.limit) {
Line 612 interrupt_intr_or_trap(const descriptor_	Line 631 interrupt_intr_or_trap(const descriptor_
load_cs(cs_sel.selector, &cs_sel.desc, CPU_STAT_CPL);	load_cs(cs_sel.selector, &cs_sel.desc, CPU_STAT_CPL);
CPU_EIP = new_ip;	CPU_EIP = new_ip;

if (gsdp->type & CPU_SYSDESC_TYPE_32BIT) {	if (is32bit) {
PUSH0_32(old_flags);	PUSH0_32(old_flags);
PUSH0_32(old_cs);	PUSH0_32(old_cs);
PUSH0_32(old_ip);	PUSH0_32(old_ip);

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