Author: zoltan
Date: 2008-02-17 14:03:42 -0500 (Sun, 17 Feb 2008)
New Revision: 95993
Modified:
trunk/mono/mono/mini/exceptions-arm.c
Log:
2008-02-09 Zoltan Varga <[EMAIL PROTECTED]>
* mini-arm.h mini-arm.c exceptions-arm.c: Modify the exception throwing
code and
the IMT code so it is AOT friendly. Enable AOT for methods which call
interface
methods.
Modified: trunk/mono/mono/mini/exceptions-arm.c
===================================================================
--- trunk/mono/mono/mini/exceptions-arm.c 2008-02-17 19:02:58 UTC (rev
95992)
+++ trunk/mono/mono/mini/exceptions-arm.c 2008-02-17 19:03:42 UTC (rev
95993)
@@ -25,8 +25,6 @@
#include "mini.h"
#include "mini-arm.h"
-static gboolean arch_handle_exception (MonoContext *ctx, gpointer obj,
gboolean test_only);
-
/*
struct sigcontext {
@@ -219,11 +217,11 @@
* Returns a function pointer which can be used to raise
* exceptions. The returned function has the following
* signature: void (*func) (MonoException *exc); or
- * void (*func) (char *exc_name);
+ * void (*func) (guint32 ex_token, guint8* ip);
*
*/
static gpointer
-mono_arch_get_throw_exception_generic (guint8 *start, int size, int by_name,
gboolean rethrow)
+mono_arch_get_throw_exception_generic (guint8 *start, int size, int by_token,
gboolean rethrow)
{
guint8 *code;
int alloc_size, pos, i;
@@ -234,24 +232,26 @@
ARM_MOV_REG_REG (code, ARMREG_IP, ARMREG_SP);
ARM_PUSH (code, MONO_ARM_REGSAVE_MASK);
- if (by_name) {
- /* r0 has the name of the exception: get the object */
- ARM_MOV_REG_REG (code, ARMREG_R2, ARMREG_R0);
+ if (by_token) {
+ /* r0 has the type token of the exception: get the object */
+ ARM_PUSH1 (code, ARMREG_R1);
+ ARM_MOV_REG_REG (code, ARMREG_R1, ARMREG_R0);
code = mono_arm_emit_load_imm (code, ARMREG_R0,
GPOINTER_TO_UINT (mono_defaults.corlib));
- code = mono_arm_emit_load_imm (code, ARMREG_R1,
GPOINTER_TO_UINT ("System"));
- code = mono_arm_emit_load_imm (code, ARMREG_IP,
GPOINTER_TO_UINT (mono_exception_from_name));
+ code = mono_arm_emit_load_imm (code, ARMREG_IP,
GPOINTER_TO_UINT (mono_exception_from_token));
ARM_MOV_REG_REG (code, ARMREG_LR, ARMREG_PC);
ARM_MOV_REG_REG (code, ARMREG_PC, ARMREG_IP);
+ ARM_POP1 (code, ARMREG_R1);
}
/* call throw_exception (exc, ip, sp, int_regs, fp_regs) */
/* caller sp */
ARM_ADD_REG_IMM8 (code, ARMREG_R2, ARMREG_SP, 10 * 4); /* 10 saved regs
*/
/* exc is already in place in r0 */
- if (by_name)
- ARM_LDR_IMM (code, ARMREG_R1, ARMREG_SP, 9 * 4); /* pos on the
stack were lr was saved */
- else
+ if (by_token) {
+ /* The caller ip is already in R1 */
+ } else {
ARM_MOV_REG_REG (code, ARMREG_R1, ARMREG_LR); /* caller ip */
+ }
/* FIXME: pointer to the saved fp regs */
/*pos = alloc_size - sizeof (double) * MONO_SAVED_FREGS;
ppc_addi (code, ppc_r7, ppc_sp, pos);*/
@@ -315,20 +315,37 @@
return start;
}
+gpointer
+mono_arch_get_throw_exception_by_name (void)
+{
+ static guint8* start;
+ static gboolean inited = FALSE;
+ guint8 *code;
+
+ if (inited)
+ return start;
+
+ start = code = mono_global_codeman_reserve (64);
+
+ /* Not used on ARM */
+ ARM_DBRK (code);
+
+ return start;
+}
+
/**
- * arch_get_throw_exception_by_name:
+ * mono_arch_get_throw_corlib_exception:
*
* Returns a function pointer which can be used to raise
* corlib exceptions. The returned function has the following
- * signature: void (*func) (char *exc_name);
- * For example to raise an arithmetic exception you can use:
- *
- * x86_push_imm (code, "ArithmeticException");
- * x86_call_code (code, arch_get_throw_exception_by_name ());
- *
+ * signature: void (*func) (guint32 ex_token, guint32 offset);
+ * Here, offset is the offset which needs to be substracted from the caller IP
+ * to get the IP of the throw. Passing the offset has the advantage that it
+ * needs no relocations in the caller.
+ * On ARM, the ip is passed instead of an offset.
*/
gpointer
-mono_arch_get_throw_exception_by_name (void)
+mono_arch_get_throw_corlib_exception (void)
{
static guint8 start [168];
static int inited = 0;
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