#endif
#define restore_regs_from_context(ctx_reg,ip_reg,tmp_reg) do { \
- int reg; \
ARM_LDR_IMM (code, ip_reg, ctx_reg, G_STRUCT_OFFSET (MonoContext, eip)); \
ARM_ADD_REG_IMM8 (code, tmp_reg, ctx_reg, G_STRUCT_OFFSET(MonoContext, regs)); \
ARM_LDMIA (code, tmp_reg, MONO_ARM_REGSAVE_MASK); \
* The first argument in r0 is the pointer to the context.
*/
gpointer
-mono_arch_get_restore_context (void)
+mono_arch_get_restore_context_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot)
{
guint8 *code;
- static guint8 start [128];
- static int inited = 0;
+ guint8 *start;
- if (inited)
- return start;
- inited = 1;
+ *ji = NULL;
+
+ start = code = mono_global_codeman_reserve (128);
- code = start;
restore_regs_from_context (ARMREG_R0, ARMREG_R1, ARMREG_R2);
/* restore also the stack pointer, FIXME: handle sp != fp */
ARM_LDR_IMM (code, ARMREG_SP, ARMREG_R0, G_STRUCT_OFFSET (MonoContext, ebp));
/* never reached */
ARM_DBRK (code);
- g_assert ((code - start) < sizeof(start));
+ g_assert ((code - start) < 128);
+
mono_arch_flush_icache (start, code - start);
+
+ *code_size = code - start;
+
return start;
}
* @exc object in this case).
*/
gpointer
-mono_arch_get_call_filter (void)
+mono_arch_get_call_filter_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot)
{
- static guint8 start [320];
- static int inited = 0;
guint8 *code;
- int alloc_size, pos, i;
+ guint8* start;
- if (inited)
- return start;
+ *ji = NULL;
- inited = 1;
/* call_filter (MonoContext *ctx, unsigned long eip, gpointer exc) */
- code = start;
+ start = code = mono_global_codeman_reserve (320);
/* save all the regs on the stack */
ARM_MOV_REG_REG (code, ARMREG_IP, ARMREG_SP);
/* epilog */
ARM_POP_NWB (code, 0xff0 | ((1 << ARMREG_SP) | (1 << ARMREG_PC)));
- g_assert ((code - start) < sizeof(start));
+ g_assert ((code - start) < 320);
+
mono_arch_flush_icache (start, code - start);
+
+ *code_size = code - start;
+
return start;
}
-static void
-throw_exception (MonoObject *exc, unsigned long eip, unsigned long esp, gulong *int_regs, gdouble *fp_regs)
+void
+mono_arm_throw_exception (MonoObject *exc, unsigned long eip, unsigned long esp, gulong *int_regs, gdouble *fp_regs)
{
static void (*restore_context) (MonoContext *);
MonoContext ctx;
gboolean rethrow = eip & 1;
if (!restore_context)
- restore_context = mono_arch_get_restore_context ();
+ restore_context = mono_get_restore_context ();
eip &= ~1; /* clear the optional rethrow bit */
/* adjust eip so that it point into the call instruction */
g_assert_not_reached ();
}
+void
+mono_arm_throw_exception_by_token (guint32 type_token, unsigned long eip, unsigned long esp, gulong *int_regs, gdouble *fp_regs)
+{
+ mono_arm_throw_exception ((MonoObject*)mono_exception_from_token (mono_defaults.corlib, type_token), eip, esp, int_regs, fp_regs);
+}
+
/**
* arch_get_throw_exception_generic:
*
*
*/
static gpointer
-mono_arch_get_throw_exception_generic (guint8 *start, int size, int by_token, gboolean rethrow)
+mono_arch_get_throw_exception_generic (int size, int by_token, gboolean rethrow, guint32 *code_size, MonoJumpInfo **ji, gboolean aot)
{
+ guint8 *start;
guint8 *code;
- int alloc_size, pos, i;
- code = start;
+ *ji = NULL;
+
+ code = start = mono_global_codeman_reserve (size);
/* save all the regs on the stack */
ARM_MOV_REG_REG (code, ARMREG_IP, ARMREG_SP);
ARM_PUSH (code, MONO_ARM_REGSAVE_MASK);
- 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_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 */
/* we encode rethrow in the ip, so we avoid args on the stack */
ARM_ORR_REG_IMM8 (code, ARMREG_R1, ARMREG_R1, rethrow);
- code = mono_arm_emit_load_imm (code, ARMREG_IP, GPOINTER_TO_UINT (throw_exception));
+ if (aot) {
+ *ji = mono_patch_info_list_prepend (*ji, code - start, MONO_PATCH_INFO_JIT_ICALL_ADDR, by_token ? "mono_arm_throw_exception_by_token" : "mono_arm_throw_exception");
+ ARM_LDR_IMM (code, ARMREG_IP, ARMREG_PC, 0);
+ ARM_B (code, 0);
+ *(gpointer*)(gpointer)code = NULL;
+ code += 4;
+ ARM_LDR_REG_REG (code, ARMREG_IP, ARMREG_PC, ARMREG_IP);
+ } else {
+ code = mono_arm_emit_load_imm (code, ARMREG_IP, GPOINTER_TO_UINT (by_token ? (gpointer)mono_arm_throw_exception_by_token : (gpointer)mono_arm_throw_exception));
+ }
ARM_MOV_REG_REG (code, ARMREG_LR, ARMREG_PC);
ARM_MOV_REG_REG (code, ARMREG_PC, ARMREG_IP);
/* we should never reach this breakpoint */
ARM_DBRK (code);
g_assert ((code - start) < size);
mono_arch_flush_icache (start, code - start);
+
+ *code_size = code - start;
+
return start;
}
*
*/
gpointer
-mono_arch_get_rethrow_exception (void)
+mono_arch_get_rethrow_exception_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot)
{
- static guint8 start [132];
- static int inited = 0;
-
- if (inited)
- return start;
- mono_arch_get_throw_exception_generic (start, sizeof (start), FALSE, TRUE);
- inited = 1;
- return start;
+ return mono_arch_get_throw_exception_generic (132, FALSE, TRUE, code_size, ji, aot);
}
+
/**
* arch_get_throw_exception:
*
*
*/
gpointer
-mono_arch_get_throw_exception (void)
+mono_arch_get_throw_exception_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot)
{
- static guint8 start [132];
- static int inited = 0;
-
- if (inited)
- return start;
- mono_arch_get_throw_exception_generic (start, sizeof (start), FALSE, FALSE);
- inited = 1;
- return start;
+ return mono_arch_get_throw_exception_generic (132, FALSE, FALSE, code_size, ji, aot);
}
gpointer
-mono_arch_get_throw_exception_by_name (void)
+mono_arch_get_throw_exception_by_name_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot)
{
- static guint8* start;
- static gboolean inited = FALSE;
+ guint8* start;
guint8 *code;
- if (inited)
- return start;
+ *ji = NULL;
start = code = mono_global_codeman_reserve (64);
/* Not used on ARM */
ARM_DBRK (code);
+ *code_size = code - start;
+
return start;
}
* On ARM, the ip is passed instead of an offset.
*/
gpointer
-mono_arch_get_throw_corlib_exception (void)
+mono_arch_get_throw_corlib_exception_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot)
{
- static guint8 start [168];
- static int inited = 0;
-
- if (inited)
- return start;
- mono_arch_get_throw_exception_generic (start, sizeof (start), TRUE, FALSE);
- inited = 1;
- return start;
+ return mono_arch_get_throw_exception_generic (168, TRUE, FALSE, code_size, ji, aot);
}
/* mono_arch_find_jit_info:
*/
MonoJitInfo *
mono_arch_find_jit_info (MonoDomain *domain, MonoJitTlsData *jit_tls, MonoJitInfo *res, MonoJitInfo *prev_ji,
- MonoContext *ctx, MonoContext *new_ctx, char **trace, MonoLMF **lmf,
- int *native_offset, gboolean *managed)
+ MonoContext *ctx, MonoContext *new_ctx, MonoLMF **lmf, gboolean *managed)
{
MonoJitInfo *ji;
gpointer ip = MONO_CONTEXT_GET_IP (ctx);
*managed = FALSE;
if (ji != NULL) {
- int offset;
+ int i;
+ gssize regs [MONO_MAX_IREGS + 1];
+ guint8 *cfa;
+ guint32 unwind_info_len;
+ guint8 *unwind_info;
*new_ctx = *ctx;
if (!ji->method->wrapper_type)
*managed = TRUE;
- /*
- * Some managed methods like pinvoke wrappers might have save_lmf set.
- * In this case, register save/restore code is not generated by the
- * JIT, so we have to restore callee saved registers from the lmf.
- */
- if (ji->method->save_lmf) {
- /*
- * We only need to do this if the exception was raised in managed
- * code, since otherwise the lmf was already popped of the stack.
- */
- if (*lmf && (MONO_CONTEXT_GET_BP (ctx) >= (gpointer)(*lmf)->ebp)) {
- memcpy (&new_ctx->regs [0], &(*lmf)->iregs [4], sizeof (gulong) * MONO_SAVED_GREGS);
- }
- new_ctx->esp = (*lmf)->iregs [12];
- new_ctx->eip = (*lmf)->iregs [13];
- new_ctx->ebp = new_ctx->esp;
- } else {
- int i;
- char* sp;
- offset = ji->used_regs >> 16;
- offset <<= 2;
- /* the saved regs are at sp + offset */
- /* restore caller saved registers */
- sp = (char*)ctx->ebp;
- sp += offset;
- for (i = 4; i < 16; ++i) {
- if (ji->used_regs & (1 << i)) {
- new_ctx->regs [i - 4] = *(gulong*)sp;
- sp += sizeof (gulong);
- }
- }
- /* IP and LR */
- new_ctx->esp = *(gulong*)sp;
- sp += sizeof (gulong);
- new_ctx->eip = *(gulong*)sp;
- sp += sizeof (gulong);
- new_ctx->ebp = new_ctx->esp;
- }
+ if (ji->from_aot)
+ unwind_info = mono_aot_get_unwind_info (ji, &unwind_info_len);
+ else
+ unwind_info = mono_get_cached_unwind_info (ji->used_regs, &unwind_info_len);
+
+ /* Beautiful numbers */
+ for (i = 4; i < 12; ++i)
+ regs [i] = new_ctx->regs [i - 4];
+ regs [ARMREG_IP] = new_ctx->regs [8];
+ regs [ARMREG_LR] = new_ctx->regs [9];
+ regs [ARMREG_SP] = new_ctx->esp;
+
+ mono_unwind_frame (unwind_info, unwind_info_len, ji->code_start,
+ (guint8*)ji->code_start + ji->code_size,
+ ip, regs, MONO_MAX_IREGS, &cfa);
+
+ for (i = 4; i < 12; ++i)
+ new_ctx->regs [i - 4] = regs [i];
+ new_ctx->regs [8] = regs [ARMREG_IP];
+ new_ctx->regs [9] = regs [ARMREG_LR];
+ new_ctx->eip = regs [ARMREG_LR];
+ new_ctx->esp = (gsize)cfa;
+ new_ctx->ebp = new_ctx->esp;
+
+ /* Needed by get_exception_catch_class () */
+ // FIXME: Is this neded ?
+ new_ctx->regs [ARMREG_R11] = new_ctx->esp;
if (*lmf && (MONO_CONTEXT_GET_BP (ctx) >= (gpointer)(*lmf)->ebp)) {
/* remove any unused lmf */
} else {
if (!(*lmf)->method)
return (gpointer)-1;
- memset (res, 0, sizeof (MonoJitInfo));
+ memset (res, 0, MONO_SIZEOF_JIT_INFO);
res->method = (*lmf)->method;
}
memcpy (&new_ctx->regs [0], &(*lmf)->iregs [4], sizeof (gulong) * MONO_SAVED_GREGS);
- new_ctx->esp = (*lmf)->iregs [12];
+ /* This is the sp for the current frame */
+ new_ctx->esp = (*lmf)->iregs [ARMREG_FP];
new_ctx->eip = (*lmf)->iregs [13];
new_ctx->ebp = new_ctx->esp;
projects / mono.git / blobdiff