#include <mono/metadata/threads-types.h>
#include <mono/metadata/debug-helpers.h>
#include <mono/metadata/exception.h>
-#include <mono/metadata/gc-internal.h>
+#include <mono/metadata/gc-internals.h>
#include <mono/metadata/mono-debug.h>
#include <mono/utils/mono-mmap.h>
/* restore_contect (MonoContext *ctx) */
- start = code = mono_global_codeman_reserve (256);
+ start = code = (guint8 *)mono_global_codeman_reserve (256);
amd64_mov_reg_reg (code, AMD64_R11, AMD64_ARG_REG1, 8);
GSList *unwind_ops = NULL;
const guint kMaxCodeSize = NACL_SIZE (128, 256);
- start = code = mono_global_codeman_reserve (kMaxCodeSize);
+ start = code = (guint8 *)mono_global_codeman_reserve (kMaxCodeSize);
/* call_filter (MonoContext *ctx, unsigned long eip) */
code = start;
mono_amd64_throw_exception (dummy1, dummy2, dummy3, dummy4, dummy5, dummy6, mctx, (MonoObject*)ex, FALSE);
}
-static void
+void
mono_amd64_resume_unwind (guint64 dummy1, guint64 dummy2, guint64 dummy3, guint64 dummy4,
guint64 dummy5, guint64 dummy6,
MonoContext *mctx, guint32 dummy7, gint64 dummy8)
dummy_stack_space = 0;
#endif
- start = code = mono_global_codeman_reserve (kMaxCodeSize);
+ start = code = (guint8 *)mono_global_codeman_reserve (kMaxCodeSize);
/* The stack is unaligned on entry */
stack_size = ALIGN_TO (sizeof (MonoContext) + 64 + dummy_stack_space, MONO_ARCH_FRAME_ALIGNMENT) + 8;
}
if (aot) {
- ji = mono_patch_info_list_prepend (ji, code - start, MONO_PATCH_INFO_JIT_ICALL_ADDR, corlib ? "mono_amd64_throw_corlib_exception" : "mono_amd64_throw_exception");
+ const char *icall_name;
+
+ if (resume_unwind)
+ icall_name = "mono_amd64_resume_unwind";
+ else if (corlib)
+ icall_name = "mono_amd64_throw_corlib_exception";
+ else
+ icall_name = "mono_amd64_throw_exception";
+ ji = mono_patch_info_list_prepend (ji, code - start, MONO_PATCH_INFO_JIT_ICALL_ADDR, icall_name);
amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
} else {
amd64_mov_reg_imm (code, AMD64_R11, resume_unwind ? ((gpointer)mono_amd64_resume_unwind) : (corlib ? (gpointer)mono_amd64_throw_corlib_exception : (gpointer)mono_amd64_throw_exception));
}
/*
- * mono_arch_find_jit_info:
+ * mono_arch_unwind_frame:
*
* This function is used to gather information from @ctx, and store it in @frame_info.
* It unwinds one stack frame, and stores the resulting context into @new_ctx. @lmf
* Returns TRUE on success, FALSE otherwise.
*/
gboolean
-mono_arch_find_jit_info (MonoDomain *domain, MonoJitTlsData *jit_tls,
+mono_arch_unwind_frame (MonoDomain *domain, MonoJitTlsData *jit_tls,
MonoJitInfo *ji, MonoContext *ctx,
MonoContext *new_ctx, MonoLMF **lmf,
mgreg_t **save_locations,
guint8 *unwind_info;
guint8 *epilog = NULL;
- frame->type = FRAME_TYPE_MANAGED;
+ if (ji->is_trampoline)
+ frame->type = FRAME_TYPE_TRAMPOLINE;
+ else
+ frame->type = FRAME_TYPE_MANAGED;
unwind_info = mono_jinfo_get_unwind_info (ji, &unwind_info_len);
for (i = 0; i < AMD64_NREG; ++i)
regs [i] = new_ctx->gregs [i];
- mono_unwind_frame (unwind_info, unwind_info_len, ji->code_start,
+ mono_unwind_frame (unwind_info, unwind_info_len, (guint8 *)ji->code_start,
(guint8*)ji->code_start + ji->code_size,
- ip, epilog ? &epilog : NULL, regs, MONO_MAX_IREGS + 1,
+ (guint8 *)ip, epilog ? &epilog : NULL, regs, MONO_MAX_IREGS + 1,
save_locations, MONO_MAX_IREGS, &cfa);
for (i = 0; i < AMD64_NREG; ++i)
memcpy (new_ctx, &ext->ctx, sizeof (MonoContext));
- *lmf = (gpointer)(((guint64)(*lmf)->previous_lmf) & ~7);
+ *lmf = (MonoLMF *)(((guint64)(*lmf)->previous_lmf) & ~7);
frame->type = FRAME_TYPE_DEBUGGER_INVOKE;
rip = *(guint64*)((*lmf)->rsp - sizeof(mgreg_t));
}
- ji = mini_jit_info_table_find (domain, (gpointer)rip, NULL);
+ ji = mini_jit_info_table_find (domain, (char *)rip, NULL);
/*
* FIXME: ji == NULL can happen when a managed-to-native wrapper is interrupted
* in the soft debugger suspend code, since (*lmf)->rsp no longer points to the
}
}
- *lmf = (gpointer)(((guint64)(*lmf)->previous_lmf) & ~7);
+ *lmf = (MonoLMF *)(((guint64)(*lmf)->previous_lmf) & ~7);
return TRUE;
}
static void
handle_signal_exception (gpointer obj)
{
- MonoJitTlsData *jit_tls = mono_native_tls_get_value (mono_jit_tls_id);
+ MonoJitTlsData *jit_tls = (MonoJitTlsData *)mono_native_tls_get_value (mono_jit_tls_id);
MonoContext ctx;
memcpy (&ctx, &jit_tls->ex_ctx, sizeof (MonoContext));
- mono_handle_exception (&ctx, obj);
+ mono_handle_exception (&ctx, (MonoObject *)obj);
mono_restore_context (&ctx);
}
* signal is disabled, and we could run arbitrary code though the debugger. So
* resume into the normal stack and do most work there if possible.
*/
- MonoJitTlsData *jit_tls = mono_native_tls_get_value (mono_jit_tls_id);
+ MonoJitTlsData *jit_tls = (MonoJitTlsData *)mono_native_tls_get_value (mono_jit_tls_id);
/* Pass the ctx parameter in TLS */
mono_sigctx_to_monoctx (sigctx, &jit_tls->ex_ctx);
static void
restore_soft_guard_pages (void)
{
- MonoJitTlsData *jit_tls = mono_native_tls_get_value (mono_jit_tls_id);
+ MonoJitTlsData *jit_tls = (MonoJitTlsData *)mono_native_tls_get_value (mono_jit_tls_id);
if (jit_tls->stack_ovf_guard_base)
mono_mprotect (jit_tls->stack_ovf_guard_base, jit_tls->stack_ovf_guard_size, MONO_MMAP_NONE);
}
prepare_for_guard_pages (MonoContext *mctx)
{
gpointer *sp;
- sp = (gpointer)(mctx->gregs [AMD64_RSP]);
+ sp = (gpointer *)(mctx->gregs [AMD64_RSP]);
sp -= 1;
/* the return addr */
sp [0] = (gpointer)(mctx->gregs [AMD64_RIP]);
}
static void
-altstack_handle_and_restore (MonoContext *ctx, gpointer obj, gboolean stack_ovf)
+altstack_handle_and_restore (MonoContext *ctx, MonoObject *obj, gboolean stack_ovf)
{
MonoContext mctx;
{
#if defined(MONO_ARCH_USE_SIGACTION)
MonoException *exc = NULL;
- MonoJitInfo *ji = mini_jit_info_table_find (mono_domain_get (), (gpointer)UCONTEXT_REG_RIP (sigctx), NULL);
+ MonoJitInfo *ji = mini_jit_info_table_find (mono_domain_get (), (char *)UCONTEXT_REG_RIP (sigctx), NULL);
gpointer *sp;
int frame_size;
MonoContext *copied_ctx;
frame_size = sizeof (MonoContext) + sizeof (gpointer) * 4 + 128;
frame_size += 15;
frame_size &= ~15;
- sp = (gpointer)(UCONTEXT_REG_RSP (sigctx) & ~15);
- sp = (gpointer)((char*)sp - frame_size);
+ sp = (gpointer *)(UCONTEXT_REG_RSP (sigctx) & ~15);
+ sp = (gpointer *)((char*)sp - frame_size);
copied_ctx = (MonoContext*)(sp + 4);
/* the arguments must be aligned */
sp [-1] = (gpointer)UCONTEXT_REG_RIP (sigctx);
return lmf->rip;
}
-gpointer
-mono_arch_get_throw_pending_exception (MonoTrampInfo **info, gboolean aot)
-{
- guint8 *code, *start;
- guint8 *br[1];
- gpointer throw_trampoline;
- MonoJumpInfo *ji = NULL;
- GSList *unwind_ops = NULL;
- const guint kMaxCodeSize = NACL_SIZE (128, 256);
-
- start = code = mono_global_codeman_reserve (kMaxCodeSize);
-
- /* We are in the frame of a managed method after a call */
- /*
- * We would like to throw the pending exception in such a way that it looks to
- * be thrown from the managed method.
- */
-
- /* Save registers which might contain the return value of the call */
- amd64_push_reg (code, AMD64_RAX);
- amd64_push_reg (code, AMD64_RDX);
-
- amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, 8);
- amd64_movsd_membase_reg (code, AMD64_RSP, 0, AMD64_XMM0);
-
- /* Align stack */
- amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, 8);
-
- /* Obtain the pending exception */
- if (aot) {
- ji = mono_patch_info_list_prepend (ji, code - start, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_thread_get_and_clear_pending_exception");
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
- } else {
- amd64_mov_reg_imm (code, AMD64_R11, mono_thread_get_and_clear_pending_exception);
- }
- amd64_call_reg (code, AMD64_R11);
-
- /* Check if it is NULL, and branch */
- amd64_alu_reg_imm (code, X86_CMP, AMD64_RAX, 0);
- br[0] = code; x86_branch8 (code, X86_CC_EQ, 0, FALSE);
-
- /* exc != NULL branch */
-
- /* Save the exc on the stack */
- amd64_push_reg (code, AMD64_RAX);
- /* Align stack */
- amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, 8);
-
- /* Obtain the original ip and clear the flag in previous_lmf */
- if (aot) {
- ji = mono_patch_info_list_prepend (ji, code - start, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_amd64_get_original_ip");
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
- } else {
- amd64_mov_reg_imm (code, AMD64_R11, mono_amd64_get_original_ip);
- }
- amd64_call_reg (code, AMD64_R11);
-
- /* Load exc */
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RSP, 8, 8);
-
- /* Pop saved stuff from the stack */
- amd64_alu_reg_imm (code, X86_ADD, AMD64_RSP, 6 * 8);
-
- /* Setup arguments for the throw trampoline */
- /* Exception */
- amd64_mov_reg_reg (code, AMD64_ARG_REG1, AMD64_R11, 8);
- /* The trampoline expects the caller ip to be pushed on the stack */
- amd64_push_reg (code, AMD64_RAX);
-
- /* Call the throw trampoline */
- if (aot) {
- ji = mono_patch_info_list_prepend (ji, code - start, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_throw_exception");
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
- } else {
- throw_trampoline = mono_get_throw_exception ();
- amd64_mov_reg_imm (code, AMD64_R11, throw_trampoline);
- }
- /* We use a jump instead of a call so we can push the original ip on the stack */
- amd64_jump_reg (code, AMD64_R11);
-
- /* ex == NULL branch */
- mono_amd64_patch (br [0], code);
-
- /* Obtain the original ip and clear the flag in previous_lmf */
- if (aot) {
- ji = mono_patch_info_list_prepend (ji, code - start, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_amd64_get_original_ip");
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
- } else {
- amd64_mov_reg_imm (code, AMD64_R11, mono_amd64_get_original_ip);
- }
- amd64_call_reg (code, AMD64_R11);
- amd64_mov_reg_reg (code, AMD64_R11, AMD64_RAX, 8);
-
- /* Restore registers */
- amd64_alu_reg_imm (code, X86_ADD, AMD64_RSP, 8);
- amd64_movsd_reg_membase (code, AMD64_XMM0, AMD64_RSP, 0);
- amd64_alu_reg_imm (code, X86_ADD, AMD64_RSP, 8);
- amd64_pop_reg (code, AMD64_RDX);
- amd64_pop_reg (code, AMD64_RAX);
-
- /* Return to original code */
- amd64_jump_reg (code, AMD64_R11);
-
- g_assert ((code - start) < kMaxCodeSize);
-
- nacl_global_codeman_validate(&start, kMaxCodeSize, &code);
- mono_arch_flush_icache (start, code - start);
- mono_profiler_code_buffer_new (start, code - start, MONO_PROFILER_CODE_BUFFER_EXCEPTION_HANDLING, NULL);
-
- if (info)
- *info = mono_tramp_info_create ("throw_pending_exception", start, code - start, ji, unwind_ops);
-
- return start;
-}
-
-static gpointer throw_pending_exception;
-
-/*
- * Called when a thread receives an async exception while executing unmanaged code.
- * Instead of checking for this exception in the managed-to-native wrapper, we hijack
- * the return address on the stack to point to a helper routine which throws the
- * exception.
- */
-void
-mono_arch_notify_pending_exc (MonoThreadInfo *info)
-{
- MonoLMF *lmf = mono_get_lmf ();
-
- if (!info) {
- lmf = mono_get_lmf ();
- } else {
- g_assert (mono_thread_info_get_suspend_state (info)->valid);
- lmf = mono_thread_info_get_suspend_state (info)->unwind_data [MONO_UNWIND_DATA_LMF];
- }
-
- if (!lmf)
- /* Not yet started */
- return;
-
- if (lmf->rsp == 0)
- /* Initial LMF */
- return;
-
- if ((guint64)lmf->previous_lmf & 5)
- /* Already hijacked or trampoline LMF entry */
- return;
-
- /* lmf->rsp is set just before making the call which transitions to unmanaged code */
- lmf->rip = *(guint64*)(lmf->rsp - 8);
- /* Signal that lmf->rip is set */
- lmf->previous_lmf = (gpointer)((guint64)lmf->previous_lmf | 1);
-
- *(gpointer*)(lmf->rsp - 8) = throw_pending_exception;
-}
-
GSList*
mono_amd64_get_exception_trampolines (gboolean aot)
{
MonoTrampInfo *info;
GSList *tramps = NULL;
- mono_arch_get_throw_pending_exception (&info, aot);
- tramps = g_slist_prepend (tramps, info);
-
/* LLVM needs different throw trampolines */
get_throw_trampoline (&info, FALSE, TRUE, FALSE, FALSE, "llvm_throw_corlib_exception_trampoline", aot);
tramps = g_slist_prepend (tramps, info);
get_throw_trampoline (&info, FALSE, TRUE, TRUE, FALSE, "llvm_throw_corlib_exception_abs_trampoline", aot);
tramps = g_slist_prepend (tramps, info);
- get_throw_trampoline (&info, FALSE, TRUE, TRUE, TRUE, "llvm_resume_unwind_trampoline", FALSE);
+ get_throw_trampoline (&info, FALSE, TRUE, TRUE, TRUE, "llvm_resume_unwind_trampoline", aot);
tramps = g_slist_prepend (tramps, info);
return tramps;
gpointer tramp;
if (mono_aot_only) {
- throw_pending_exception = mono_aot_get_trampoline ("throw_pending_exception");
tramp = mono_aot_get_trampoline ("llvm_throw_corlib_exception_trampoline");
mono_register_jit_icall (tramp, "llvm_throw_corlib_exception_trampoline", NULL, TRUE);
tramp = mono_aot_get_trampoline ("llvm_throw_corlib_exception_abs_trampoline");
mono_register_jit_icall (tramp, "llvm_resume_unwind_trampoline", NULL, TRUE);
} else {
/* Call this to avoid initialization races */
- throw_pending_exception = mono_arch_get_throw_pending_exception (NULL, FALSE);
-
tramps = mono_amd64_get_exception_trampolines (FALSE);
for (l = tramps; l; l = l->next) {
- MonoTrampInfo *info = l->data;
+ MonoTrampInfo *info = (MonoTrampInfo *)l->data;
mono_register_jit_icall (info->code, g_strdup (info->name), NULL, TRUE);
- mono_tramp_info_register (info);
+ mono_tramp_info_register (info, NULL);
}
g_slist_free (tramps);
}
if (saved)
return (MonoContinuationRestore)saved;
- code = start = mono_global_codeman_reserve (kMaxCodeSize);
+ code = start = (guint8 *)mono_global_codeman_reserve (kMaxCodeSize);
/* the signature is: restore (MonoContinuation *cont, int state, MonoLMF **lmf_addr) */
/* cont is in AMD64_ARG_REG1 ($rcx or $rdi)
* state is in AMD64_ARG_REG2 ($rdx or $rsi)
projects / mono.git / blobdiff