#define S390_THROWSTACK_ACCPRM S390_MINIMAL_STACK_SIZE
#define S390_THROWSTACK_FPCPRM (S390_THROWSTACK_ACCPRM+sizeof(gpointer))
-#define S390_THROWSTACK_RETHROW (S390_THROWSTACK_FPCPRM+sizeof(gint32))
+#define S390_THROWSTACK_RETHROW (S390_THROWSTACK_FPCPRM+sizeof(gulong))
#define S390_THROWSTACK_INTREGS (S390_THROWSTACK_RETHROW+sizeof(gboolean))
#define S390_THROWSTACK_FLTREGS (S390_THROWSTACK_INTREGS+(16*sizeof(gulong)))
#define S390_THROWSTACK_ACCREGS (S390_THROWSTACK_FLTREGS+(16*sizeof(gdouble)))
#define S390_THROWSTACK_SIZE (S390_THROWSTACK_ACCREGS+(16*sizeof(gint32)))
+#define S390_REG_SAVE_R13 (S390_REG_SAVE_OFFSET+(7*sizeof(gulong)))
+
#define SZ_THROW 384
+#define setup_context(ctx)
+
/*========================= End of Defines =========================*/
/*------------------------------------------------------------------*/
/*------------------------------------------------------------------*/
gboolean mono_arch_handle_exception (void *ctx,
- gpointer obj,
- gboolean test_only);
+ gpointer obj);
/*========================= End of Prototypes ======================*/
/* G l o b a l V a r i a b l e s */
/*------------------------------------------------------------------*/
-/*====================== End of Global Variables ===================*/
-
-/*------------------------------------------------------------------*/
-/* */
-/* Name - mono_arch_has_unwind_info */
-/* */
-/* Function - Tests if a function has a DWARF exception table */
-/* that is able to restore all caller saved registers*/
-/* */
-/*------------------------------------------------------------------*/
-
-gboolean
-mono_arch_has_unwind_info (gconstpointer addr)
-{
- return FALSE;
-}
+typedef enum {
+ by_none,
+ by_token
+} throwType;
-/*========================= End of Function ========================*/
+/*====================== End of Global Variables ===================*/
/*------------------------------------------------------------------*/
/* */
/*------------------------------------------------------------------*/
gpointer
-mono_arch_get_call_filter (void)
+mono_arch_get_call_filter (MonoTrampInfo **info, gboolean aot)
{
static guint8 *start;
static int inited = 0;
guint8 *code;
int alloc_size, pos, i;
+ GSList *unwind_ops = NULL;
+ MonoJumpInfo *ji = NULL;
+
+ g_assert (!aot);
if (inited)
return start;
/*------------------------------------------------------*/
/* save general registers on stack */
/*------------------------------------------------------*/
- s390_stmg (code, s390_r0, s390_r13, STK_BASE, S390_CALLFILTER_INTREGS);
+ s390_stmg (code, s390_r0, STK_BASE, STK_BASE, S390_CALLFILTER_INTREGS);
/*------------------------------------------------------*/
/* save floating point registers on stack */
/*------------------------------------------------------*/
-// pos = S390_CALLFILTER_FLTREGS;
-// for (i = 0; i < 16; ++i) {
-// s390_std (code, i, 0, STK_BASE, pos);
-// pos += sizeof (gdouble);
-// }
+ pos = S390_CALLFILTER_FLTREGS;
+ for (i = 0; i < 16; ++i) {
+ s390_std (code, i, 0, STK_BASE, pos);
+ pos += sizeof (gdouble);
+ }
/*------------------------------------------------------*/
/* save access registers on stack */
/*------------------------------------------------------*/
-// s390_stam (code, s390_a0, s390_a15, STK_BASE, S390_CALLFILTER_ACCREGS);
+ s390_stam (code, s390_a0, s390_a15, STK_BASE, S390_CALLFILTER_ACCREGS);
/*------------------------------------------------------*/
/* Get A(Context) */
s390_ld (code, i, 0, s390_r13, pos);
pos += sizeof(gdouble);
}
-
+
+#if 0
/*------------------------------------------------------*/
- /* Point at the copied stack frame and call the filter */
+ /* We need to preserve current SP before calling filter */
+ /* with SP from the context */
+ /*------------------------------------------------------*/
+ s390_lgr (code, s390_r14, STK_BASE);
+ s390_lg (code, STK_BASE, 0, s390_r13,
+ G_STRUCT_OFFSET(MonoContext, uc_mcontext.gregs[15]));
+ s390_lgr (code, s390_r13, s390_r14);
+#endif
+
+ /*------------------------------------------------------*/
+ /* Go call filter */
/*------------------------------------------------------*/
s390_lgr (code, s390_r1, s390_r0);
s390_basr (code, s390_r14, s390_r1);
/*------------------------------------------------------*/
s390_lgr (code, s390_r14, s390_r2);
+#if 0
+ /*------------------------------------------------------*/
+ /* Reload our stack register with value saved in context*/
+ /*------------------------------------------------------*/
+ s390_lgr (code, STK_BASE, s390_r13);
+#endif
+
/*------------------------------------------------------*/
/* Restore all the regs from the stack */
/*------------------------------------------------------*/
s390_lmg (code, s390_r0, s390_r13, STK_BASE, S390_CALLFILTER_INTREGS);
-// pos = S390_CALLFILTER_FLTREGS;
-// for (i = 0; i < 16; ++i) {
-// s390_ld (code, i, 0, STK_BASE, pos);
-// pos += sizeof (gdouble);
-// }
+ pos = S390_CALLFILTER_FLTREGS;
+ for (i = 0; i < 16; ++i) {
+ s390_ld (code, i, 0, STK_BASE, pos);
+ pos += sizeof (gdouble);
+ }
s390_lgr (code, s390_r2, s390_r14);
-// s390_lam (code, s390_a0, s390_a15, STK_BASE, S390_CALLFILTER_ACCREGS);
+ s390_lam (code, s390_a0, s390_a15, STK_BASE, S390_CALLFILTER_ACCREGS);
s390_aghi (code, s390_r15, alloc_size);
s390_lmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
s390_br (code, s390_r14);
g_assert ((code - start) < SZ_THROW);
+
+ if (info)
+ *info = mono_tramp_info_create ("call_filter",
+ start, code - start, ji,
+ unwind_ops);
+
return start;
}
{
MonoContext ctx;
int iReg;
-
+
memset(&ctx, 0, sizeof(ctx));
- getcontext(&ctx);
+ setup_context(&ctx);
/* adjust eip so that it point into the call instruction */
- ip -= 6;
+ ip -= 2;
for (iReg = 0; iReg < 16; iReg++) {
ctx.uc_mcontext.gregs[iReg] = int_regs[iReg];
if (!rethrow)
mono_ex->stack_trace = NULL;
}
- mono_arch_handle_exception (&ctx, exc, FALSE);
- setcontext(&ctx);
+// mono_arch_handle_exception (&ctx, exc, FALSE);
+ mono_handle_exception (&ctx, exc);
+ mono_restore_context(&ctx);
g_assert_not_reached ();
}
/*------------------------------------------------------------------*/
static gpointer
-get_throw_exception_generic (guint8 *start, int size,
- int by_name, gboolean rethrow)
+mono_arch_get_throw_exception_generic (int size, MonoTrampInfo **info,
+ int corlib, gboolean rethrow, gboolean aot)
{
- guint8 *code;
+ guint8 *code, *start;
int alloc_size, pos, i;
+ MonoJumpInfo *ji = NULL;
+ GSList *unwind_ops = NULL;
- code = start;
+ code = start = mono_global_codeman_reserve(size);
s390_stmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
alloc_size = S390_ALIGN(S390_THROWSTACK_SIZE, S390_STACK_ALIGNMENT);
s390_lgr (code, s390_r14, STK_BASE);
s390_aghi (code, STK_BASE, -alloc_size);
s390_stg (code, s390_r14, 0, STK_BASE, 0);
- if (by_name) {
- s390_lgr (code, s390_r4, s390_r2);
+ s390_lgr (code, s390_r3, s390_r2);
+ if (corlib) {
s390_basr (code, s390_r13, 0);
- s390_j (code, 14);
- s390_llong(code, mono_defaults.corlib);
- s390_llong(code, "System");
- s390_llong(code, mono_exception_from_name);
+ s390_j (code, 10);
+ s390_llong(code, mono_defaults.exception_class->image);
+ s390_llong(code, mono_exception_from_token);
s390_lg (code, s390_r2, 0, s390_r13, 4);
- s390_lg (code, s390_r3, 0, s390_r13, 12);
- s390_lg (code, s390_r1, 0, s390_r13, 20);
+ s390_lg (code, s390_r1, 0, s390_r13, 12);
s390_basr (code, s390_r14, s390_r1);
}
+
/*------------------------------------------------------*/
/* save the general registers on the stack */
/*------------------------------------------------------*/
s390_stam (code, s390_r0, s390_r15, STK_BASE, S390_THROWSTACK_ACCREGS);
/*------------------------------------------------------*/
- /* call throw_exception (exc, ip, sp, gr, fr, ar) */
- /* exc is already in place in r2 */
+ /* call throw_exception (tkn, ip, sp, gr, fr, ar, re) */
+ /* - r2 already contains *exc */
/*------------------------------------------------------*/
s390_lgr (code, s390_r4, s390_r1); /* caller sp */
+
/*------------------------------------------------------*/
/* pointer to the saved int regs */
/*------------------------------------------------------*/
s390_la (code, s390_r6, 0, STK_BASE, S390_THROWSTACK_FLTREGS);
s390_la (code, s390_r7, 0, STK_BASE, S390_THROWSTACK_ACCREGS);
s390_stg (code, s390_r7, 0, STK_BASE, S390_THROWSTACK_ACCPRM);
- s390_stfpc(code, STK_BASE, S390_THROWSTACK_FPCPRM);
+ s390_stfpc(code, STK_BASE, S390_THROWSTACK_FPCPRM+4);
s390_lghi (code, s390_r7, rethrow);
s390_stg (code, s390_r7, 0, STK_BASE, S390_THROWSTACK_RETHROW);
s390_basr (code, s390_r13, 0);
/* we should never reach this breakpoint */
s390_break (code);
g_assert ((code - start) < size);
+
+ if (info)
+ *info = mono_tramp_info_create (corlib ? "throw_corlib_exception"
+ : (rethrow ? "rethrow_exception"
+ : "throw_exception"),
+ start, code - start, ji, unwind_ops);
+
return start;
}
/* */
/*------------------------------------------------------------------*/
-gpointer
-mono_arch_get_throw_exception (void)
+gpointer
+mono_arch_get_throw_exception (MonoTrampInfo **info, gboolean aot)
{
- static guint8 *start;
- static int inited = 0;
- if (inited)
- return start;
- start = mono_global_codeman_reserve (SZ_THROW);
- get_throw_exception_generic (start, SZ_THROW, FALSE, FALSE);
- inited = 1;
- return start;
+ g_assert (!aot);
+ if (info)
+ *info = NULL;
+
+ return (mono_arch_get_throw_exception_generic (SZ_THROW, info, FALSE, FALSE, aot));
}
/*========================= End of Function ========================*/
/*------------------------------------------------------------------*/
gpointer
-mono_arch_get_rethrow_exception (void)
+mono_arch_get_rethrow_exception (MonoTrampInfo **info, gboolean aot)
{
- static guint8 *start;
- static int inited = 0;
+ g_assert (!aot);
+ if (info)
+ *info = NULL;
- if (inited)
- return start;
- start = mono_global_codeman_reserve (SZ_THROW);
- get_throw_exception_generic (start, SZ_THROW, FALSE, TRUE);
- inited = 1;
- return start;
+ return (mono_arch_get_throw_exception_generic (SZ_THROW, info, FALSE, FALSE, aot));
}
/*========================= End of Function ========================*/
/*------------------------------------------------------------------*/
/* */
-/* Name - arch_get_throw_exception_by_name */
+/* Name - arch_get_corlib_exception */
/* */
/* Function - Return a function pointer which can be used to */
/* raise corlib exceptions. The return function has */
/* the following signature: */
-/* void (*func) (char *exc_name); */
+/* void (*func) (guint32 token, guint32 offset) */
/* */
/*------------------------------------------------------------------*/
-gpointer
-mono_arch_get_throw_exception_by_name (void)
+gpointer
+mono_arch_get_throw_corlib_exception (MonoTrampInfo **info, gboolean aot)
{
- static guint8 *start;
- static int inited = 0;
+ g_assert (!aot);
+ if (info)
+ *info = NULL;
- if (inited)
- return start;
- start = mono_global_codeman_reserve (SZ_THROW);
- get_throw_exception_generic (start, SZ_THROW, TRUE, FALSE);
- inited = 1;
- return start;
+ return (mono_arch_get_throw_exception_generic (SZ_THROW, info, TRUE, FALSE, aot));
}
/*========================= End of Function ========================*/
/* */
/* Name - mono_arch_find_jit_info */
/* */
-/* Function - This function is used to gather information from */
-/* @ctx. It returns the MonoJitInfo of the corres- */
-/* ponding function, unwinds one stack frame and */
-/* stores the resulting context into @new_ctx. It */
-/* also stores a string describing the stack location*/
-/* into @trace (if not NULL), and modifies the @lmf */
-/* if necessary. @native_offset returns the IP off- */
-/* set from the start of the function or -1 if that */
-/* information is not available. */
+/* Function - See exceptions-amd64.c for docs. */
/* */
/*------------------------------------------------------------------*/
-MonoJitInfo *
+gboolean
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)
+ MonoJitInfo *ji, MonoContext *ctx,
+ MonoContext *new_ctx, MonoLMF **lmf,
+ mgreg_t **save_locations,
+ StackFrameInfo *frame)
{
- MonoJitInfo *ji;
gpointer ip = (gpointer) MONO_CONTEXT_GET_IP (ctx);
MonoS390StackFrame *sframe;
- if (prev_ji &&
- (ip >= prev_ji->code_start &&
- ((guint8 *) ip <= ((guint8 *) prev_ji->code_start) + prev_ji->code_size)))
- ji = prev_ji;
- else
- ji = mono_jit_info_table_find (domain, ip);
-
- if (trace)
- *trace = NULL;
-
-// if (native_offset)
-// *native_offset = -1;
+ memset (frame, 0, sizeof (StackFrameInfo));
+ frame->ji = ji;
- if (managed)
- *managed = FALSE;
+ *new_ctx = *ctx;
if (ji != NULL) {
gint64 address;
+ guint8 *cfa;
+ guint32 unwind_info_len;
+ guint8 *unwind_info;
+ mgreg_t regs[16];
- *new_ctx = *ctx;
+ frame->type = FRAME_TYPE_MANAGED;
- if (*lmf && (MONO_CONTEXT_GET_SP (ctx) >= (gpointer)(*lmf)->ebp)) {
+ unwind_info = mono_jinfo_get_unwind_info (ji, &unwind_info_len);
+
+ if (*lmf && ((*lmf) != jit_tls->first_lmf) &&
+ (MONO_CONTEXT_GET_SP (ctx) >= (gpointer)(*lmf)->ebp)) {
/* remove any unused lmf */
*lmf = (*lmf)->previous_lmf;
}
address = (char *)ip - (char *)ji->code_start;
- if (native_offset)
- *native_offset = address;
-
- if (managed)
- if (!ji->method->wrapper_type)
- *managed = TRUE;
-
- sframe = (MonoS390StackFrame *) MONO_CONTEXT_GET_SP (ctx);
- MONO_CONTEXT_SET_BP (new_ctx, sframe->prev);
- sframe = (MonoS390StackFrame *) sframe->prev;
- MONO_CONTEXT_SET_IP (new_ctx, sframe->return_address);
- memcpy (&new_ctx->uc_mcontext.gregs[6], sframe->regs, (8*sizeof(gint64)));
- return ji;
-
+ memcpy(®s, &ctx->uc_mcontext.gregs, sizeof(regs));
+ mono_unwind_frame (unwind_info, unwind_info_len, ji->code_start,
+ (guint8 *) ji->code_start + ji->code_size,
+ ip, regs, 16, save_locations,
+ MONO_MAX_IREGS, &cfa);
+ memcpy (&new_ctx->uc_mcontext.gregs, ®s, sizeof(regs));
+ MONO_CONTEXT_SET_IP(new_ctx, regs[14] - 2);
+ MONO_CONTEXT_SET_BP(new_ctx, cfa);
+
+ if (*lmf && (MONO_CONTEXT_GET_SP (ctx) >= (gpointer)(*lmf)->ebp)) {
+ /* remove any unused lmf */
+ *lmf = (*lmf)->previous_lmf;
+ }
+ return TRUE;
} else if (*lmf) {
-
- *new_ctx = *ctx;
-
- if (!(*lmf)->method)
- return (gpointer)-1;
- if ((ji = mono_jit_info_table_find (domain, (gpointer)(*lmf)->eip))) {
- } else {
- memset (res, 0, sizeof (MonoJitInfo));
- res->method = (*lmf)->method;
+ ji = mini_jit_info_table_find (domain, (gpointer)(*lmf)->eip, NULL);
+ if (!ji) {
+ if (!(*lmf)->method)
+ return FALSE;
+
+ frame->method = (*lmf)->method;
}
+ frame->ji = ji;
+ frame->type = FRAME_TYPE_MANAGED_TO_NATIVE;
+
memcpy(new_ctx->uc_mcontext.gregs, (*lmf)->gregs, sizeof((*lmf)->gregs));
memcpy(new_ctx->uc_mcontext.fpregs.fprs, (*lmf)->fregs, sizeof((*lmf)->fregs));
-
MONO_CONTEXT_SET_BP (new_ctx, (*lmf)->ebp);
- MONO_CONTEXT_SET_IP (new_ctx, (*lmf)->eip);
+ MONO_CONTEXT_SET_IP (new_ctx, (*lmf)->eip - 2);
*lmf = (*lmf)->previous_lmf;
- return ji ? ji : res;
+ return TRUE;
}
- return NULL;
+ return FALSE;
}
/*========================= End of Function ========================*/
/* */
/* Parameters - ctx - Saved processor state */
/* obj - The exception object */
-/* test_only - Only test if the exception is caught, */
-/* but don't call handlers */
/* */
/*------------------------------------------------------------------*/
gboolean
-mono_arch_handle_exception (void *uc, gpointer obj, gboolean test_only)
+mono_arch_handle_exception (void *uc, gpointer obj)
+{
+ return mono_handle_exception (uc, obj);
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - mono_arch_sigctx_to_monoctx. */
+/* */
+/* Function - Called from the signal handler to convert signal */
+/* context to MonoContext. */
+/* */
+/*------------------------------------------------------------------*/
+
+void
+mono_arch_sigctx_to_monoctx (void *ctx, MonoContext *mctx)
{
- return mono_handle_exception (uc, obj, mono_arch_ip_from_context(uc), test_only);
+ mono_sigctx_to_monoctx(ctx, mctx);
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - mono_arch_monoctx_to_sigctx. */
+/* */
+/* Function - Convert MonoContext structure to signal context. */
+/* */
+/*------------------------------------------------------------------*/
+
+void
+mono_arch_monoctx_to_sigctx (MonoContext *mctx, void *ctx)
+{
+ mono_monoctx_to_sigctx(mctx, ctx);
}
/*========================= End of Function ========================*/
/*------------------------------------------------------------------*/
/* */
-/* Name - mono_arch_get_restore_context */
+/* Name - mono_arch_get_restore_context */
/* */
/* Function - Return the address of the routine that will rest- */
/* ore the context. */
/*------------------------------------------------------------------*/
gpointer
-mono_arch_get_restore_context ()
+mono_arch_get_restore_context (MonoTrampInfo **info, gboolean aot)
{
+ g_assert (!aot);
+ if (info)
+ *info = NULL;
+
return setcontext;
}
-
/*========================= End of Function ========================*/
/*------------------------------------------------------------------*/
projects / mono.git / blobdiff