-/*
- * tramp-amd64.c: JIT trampoline code for amd64
+/**
+ * \file
+ * JIT trampoline code for amd64
*
* Authors:
* Dietmar Maurer (dietmar@ximian.com)
* Zoltan Varga (vargaz@gmail.com)
+ * Johan Lorensson (lateralusx.github@gmail.com)
*
* (C) 2001 Ximian, Inc.
* Copyright 2003-2011 Novell, Inc (http://www.novell.com)
#include <mono/metadata/appdomain.h>
#include <mono/metadata/marshal.h>
#include <mono/metadata/tabledefs.h>
-#include <mono/metadata/mono-debug-debugger.h>
#include <mono/metadata/profiler-private.h>
#include <mono/metadata/gc-internals.h>
#include <mono/arch/amd64/amd64-codegen.h>
this_reg = mono_arch_get_this_arg_reg (NULL);
- start = code = (guint8 *)mono_domain_code_reserve (domain, size);
+ start = code = (guint8 *)mono_domain_code_reserve (domain, size + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0));
unwind_ops = mono_arch_get_cie_program ();
amd64_mov_reg_imm (code, AMD64_RAX, addr);
amd64_jump_reg (code, AMD64_RAX);
g_assert ((code - start) < size);
+ g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)));
mono_arch_flush_icache (start, code - start);
mono_profiler_code_buffer_new (start, code - start, MONO_PROFILER_CODE_BUFFER_UNBOX_TRAMPOLINE, m);
buf_len = 30;
#endif
- start = code = (guint8 *)mono_domain_code_reserve (domain, buf_len);
+ start = code = (guint8 *)mono_domain_code_reserve (domain, buf_len + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0));
unwind_ops = mono_arch_get_cie_program ();
amd64_mov_reg_imm (code, MONO_ARCH_RGCTX_REG, mrgctx);
amd64_jump_code (code, addr);
g_assert ((code - start) < buf_len);
+ g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)));
mono_arch_flush_icache (start, code - start);
mono_profiler_code_buffer_new (start, code - start, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL);
else
has_caller = TRUE;
- code = buf = (guint8 *)mono_global_codeman_reserve (kMaxCodeSize);
+ code = buf = (guint8 *)mono_global_codeman_reserve (kMaxCodeSize + MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE);
/* Compute stack frame size and offsets */
offset = 0;
orig_rsp_to_rbp_offset -= sizeof(mgreg_t);
amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, sizeof(mgreg_t));
mono_add_unwind_op_def_cfa_reg (unwind_ops, code, buf, AMD64_RBP);
+ mono_add_unwind_op_fp_alloc (unwind_ops, code, buf, AMD64_RBP, 0);
amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, framesize);
/* Compute the trampoline address from the return address */
* We have an exception we want to throw in the caller's frame, so pop
* the trampoline frame and throw from the caller.
*/
+#if TARGET_WIN32
+ amd64_lea_membase (code, AMD64_RSP, AMD64_RBP, 0);
+ amd64_pop_reg (code, AMD64_RBP);
+ mono_add_unwind_op_same_value (unwind_ops, code, buf, AMD64_RBP);
+#else
amd64_leave (code);
+#endif
/* We are in the parent frame, the exception is in rax */
/*
* EH is initialized after trampolines, so get the address of the variable
amd64_movsd_reg_membase (code, i, AMD64_RBP, saved_fpregs_offset + (i * sizeof(mgreg_t)));
/* Restore stack */
+#if TARGET_WIN32
+ amd64_lea_membase (code, AMD64_RSP, AMD64_RBP, 0);
+ amd64_pop_reg (code, AMD64_RBP);
+ mono_add_unwind_op_same_value (unwind_ops, code, buf, AMD64_RBP);
+#else
amd64_leave (code);
+#endif
cfa_offset -= sizeof (mgreg_t);
mono_add_unwind_op_def_cfa (unwind_ops, code, buf, AMD64_RSP, cfa_offset);
}
g_assert ((code - buf) <= kMaxCodeSize);
+ g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE));
mono_arch_flush_icache (buf, code - buf);
mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL);
tramp_size = 64 + 8 * depth;
- code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size);
+ code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0));
unwind_ops = mono_arch_get_cie_program ();
mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL);
g_assert (code - buf <= tramp_size);
+ g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)));
char *name = mono_get_rgctx_fetch_trampoline_name (slot);
*info = mono_tramp_info_create (name, buf, code - buf, ji, unwind_ops);
g_assert (aot);
tramp_size = 64;
- code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size);
+ code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0));
unwind_ops = mono_arch_get_cie_program ();
mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL);
g_assert (code - buf <= tramp_size);
+ g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)));
if (info)
*info = mono_tramp_info_create ("rgctx_fetch_trampoline_general", buf, code - buf, ji, unwind_ops);
MonoJumpInfo *ji = NULL;
GSList *unwind_ops;
- code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size);
+ code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0));
unwind_ops = mono_arch_get_cie_program ();
mono_arch_flush_icache (buf, code - buf);
mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL);
g_assert (code - buf <= tramp_size);
+ g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_TRAMPOLINE_UNWINDINFO_SIZE(0)));
*info = mono_tramp_info_create ("handler_block_trampoline", buf, code - buf, ji, unwind_ops);
GSList *unwind_ops = NULL;
MonoJumpInfo *ji = NULL;
- code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size);
+ code = buf = (guint8 *)mono_global_codeman_reserve (tramp_size + MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE);
framesize = 0;
#ifdef TARGET_WIN32
amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, sizeof(mgreg_t));
mono_add_unwind_op_def_cfa_reg (unwind_ops, code, buf, AMD64_RBP);
+ mono_add_unwind_op_fp_alloc (unwind_ops, code, buf, AMD64_RBP, 0);
amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, framesize);
gregs_offset = ctx_offset + MONO_STRUCT_OFFSET (MonoContext, gregs);
amd64_mov_reg_membase (code, AMD64_R11, AMD64_RSP, gregs_offset + (AMD64_RIP * sizeof (mgreg_t)), sizeof (mgreg_t));
amd64_mov_membase_reg (code, AMD64_RBP, sizeof (mgreg_t), AMD64_R11, sizeof (mgreg_t));
+#if TARGET_WIN32
+ amd64_lea_membase (code, AMD64_RSP, AMD64_RBP, 0);
+ amd64_pop_reg (code, AMD64_RBP);
+ mono_add_unwind_op_same_value (unwind_ops, code, buf, AMD64_RBP);
+#else
amd64_leave (code);
+#endif
cfa_offset -= sizeof (mgreg_t);
mono_add_unwind_op_def_cfa (unwind_ops, code, buf, AMD64_RSP, cfa_offset);
amd64_ret (code);
mono_arch_flush_icache (code, code - buf);
mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL);
g_assert (code - buf <= tramp_size);
+ g_assert_checked (mono_arch_unwindinfo_validate_size (unwind_ops, MONO_MAX_TRAMPOLINE_UNWINDINFO_SIZE));
const char *tramp_name = single_step ? "sdb_single_step_trampoline" : "sdb_breakpoint_trampoline";
*info = mono_tramp_info_create (tramp_name, buf, code - buf, ji, unwind_ops);
return buf;
}
+/*
+ * mono_arch_get_enter_icall_trampoline:
+ *
+ * A trampoline that handles the transition from interpreter into native world.
+ * It requiers to set up a descriptor (MethodArguments) that describes the
+ * required arguments passed to the callee.
+ */
gpointer
mono_arch_get_enter_icall_trampoline (MonoTrampInfo **info)
{
- guint8 *start = NULL, *code, *exits[4], *leave_tramp;
+#ifdef ENABLE_INTERPRETER
+ const int gregs_num = 8;
+ const int fregs_num = 3;
+ guint8 *start = NULL, *code, *label_gexits [gregs_num], *label_fexits [fregs_num], *label_leave_tramp [3], *label_is_float_ret;
MonoJumpInfo *ji = NULL;
GSList *unwind_ops = NULL;
- static int arg_regs[] = {AMD64_ARG_REG1, AMD64_ARG_REG2, AMD64_ARG_REG3, AMD64_ARG_REG4};
- int i, gregs_offset;
+ static int farg_regs[] = {AMD64_XMM0, AMD64_XMM1, AMD64_XMM2};
+ int i, framesize = 0, off_rbp, off_methodargs, off_targetaddr;
+
+ start = code = (guint8 *) mono_global_codeman_reserve (256 + MONO_TRAMPOLINE_UNWINDINFO_SIZE(0));
+
+ off_rbp = -framesize;
- start = code = (guint8 *) mono_global_codeman_reserve (256);
+ framesize += sizeof (mgreg_t);
+ off_methodargs = -framesize;
+
+ framesize += sizeof (mgreg_t);
+ off_targetaddr = -framesize;
+
+ framesize += (gregs_num - PARAM_REGS) * sizeof (mgreg_t);
+
+ amd64_push_reg (code, AMD64_RBP);
+ amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, sizeof (mgreg_t));
+ amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, ALIGN_TO (framesize, MONO_ARCH_FRAME_ALIGNMENT));
/* save MethodArguments* onto stack */
- amd64_push_reg (code, AMD64_ARG_REG2);
+ amd64_mov_membase_reg (code, AMD64_RBP, off_methodargs, AMD64_ARG_REG2, sizeof (mgreg_t));
/* save target address on stack */
- amd64_push_reg (code, AMD64_ARG_REG1);
- amd64_push_reg (code, AMD64_RAX);
+ amd64_mov_membase_reg (code, AMD64_RBP, off_targetaddr, AMD64_ARG_REG1, sizeof (mgreg_t));
/* load pointer to MethodArguments* into R11 */
amd64_mov_reg_reg (code, AMD64_R11, AMD64_ARG_REG2, 8);
- /* TODO: do float stuff first */
-
- /* move ilen into RAX */ // TODO: struct offset
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 0, 8);
- /* load pointer to iregs into R11 */ // TODO: struct offset
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 8, 8);
+ /* move flen into RAX */ // TODO: struct offset
+ amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 16, sizeof (mgreg_t));
+ /* load pointer to fregs into R11 */ // TODO: struct offset
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 24, sizeof (mgreg_t));
- for (int i = 0; i < 4; i++) {
+ for (i = 0; i < fregs_num; ++i) {
amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
- exits [i] = code;
+ label_fexits [i] = code;
x86_branch8 (code, X86_CC_Z, 0, FALSE);
- amd64_mov_reg_membase (code, arg_regs [i], AMD64_R11, i * sizeof (gpointer), 8);
+ amd64_sse_movsd_reg_membase (code, farg_regs [i], AMD64_R11, i * sizeof (double));
amd64_dec_reg_size (code, AMD64_RAX, 1);
}
- for (int i = 0; i < 4; i++) {
- x86_patch (exits [i], code);
+ for (i = 0; i < fregs_num; i++) {
+ x86_patch (label_fexits [i], code);
}
+ /* load pointer to MethodArguments* into R11 */
+ amd64_mov_reg_reg (code, AMD64_R11, AMD64_ARG_REG2, sizeof (mgreg_t));
+ /* move ilen into RAX */ // TODO: struct offset
+ amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 0, sizeof (mgreg_t));
- amd64_pop_reg (code, AMD64_RAX);
- amd64_pop_reg (code, AMD64_R11);
+ int stack_offset = 0;
+ for (i = 0; i < gregs_num; i++) {
+ amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
+ label_gexits [i] = code;
+ x86_branch32 (code, X86_CC_Z, 0, FALSE);
+
+ /* load pointer to MethodArguments* into R11 */
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t));
+ /* load pointer to iregs into R11 */ // TODO: struct offset
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 8, sizeof (mgreg_t));
+
+ if (i < PARAM_REGS) {
+ amd64_mov_reg_membase (code, param_regs [i], AMD64_R11, i * sizeof (mgreg_t), sizeof (mgreg_t));
+ } else {
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, i * sizeof (mgreg_t), sizeof (mgreg_t));
+ amd64_mov_membase_reg (code, AMD64_RSP, stack_offset, AMD64_R11, sizeof (mgreg_t));
+ stack_offset += sizeof (mgreg_t);
+ }
+ amd64_dec_reg_size (code, AMD64_RAX, 1);
+ }
+
+ for (i = 0; i < gregs_num; i++) {
+ x86_patch (label_gexits [i], code);
+ }
+
+ /* load target addr */
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_targetaddr, sizeof (mgreg_t));
/* call into native function */
amd64_call_reg (code, AMD64_R11);
/* load MethodArguments */
- amd64_pop_reg (code, AMD64_R11);
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t));
+
+ /* load is_float_ret */ // TODO: struct offset
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0x28, sizeof (mgreg_t));
+
+ /* check if a float return value is expected */
+ amd64_test_reg_reg (code, AMD64_R11, AMD64_R11);
+
+ label_is_float_ret = code;
+ x86_branch8 (code, X86_CC_NZ, 0, FALSE);
+
+
+
+ /* greg return */
+ /* load MethodArguments */
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t));
/* load retval */ // TODO: struct offset
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0x20, 8);
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0x20, sizeof (mgreg_t));
amd64_test_reg_reg (code, AMD64_R11, AMD64_R11);
- leave_tramp = code;
+ label_leave_tramp [0] = code;
x86_branch8 (code, X86_CC_Z, 0, FALSE);
- amd64_mov_membase_reg (code, AMD64_R11, 0, AMD64_RAX, 8);
+ amd64_mov_membase_reg (code, AMD64_R11, 0, AMD64_RAX, sizeof (mgreg_t));
- x86_patch (leave_tramp, code);
- amd64_ret (code);
+ label_leave_tramp [1] = code;
+ x86_jump8 (code, 0);
-#if 0
- /* Restore all registers except %rip and %r11 */
- gregs_offset = MONO_STRUCT_OFFSET (MonoContext, gregs);
- for (i = 0; i < AMD64_NREG; ++i) {
- if (i != AMD64_RIP && i != AMD64_RSP && i != AMD64_R8 && i != AMD64_R9 && i != AMD64_R10 && i != AMD64_R11)
- amd64_mov_reg_membase (code, i, AMD64_R11, gregs_offset + (i * 8), 8);
- }
+ /* freg return */
+ x86_patch (label_is_float_ret, code);
+ /* load MethodArguments */
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, off_methodargs, sizeof (mgreg_t));
+ /* load retval */ // TODO: struct offset
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0x20, sizeof (mgreg_t));
- /*
- * The context resides on the stack, in the stack frame of the
- * caller of this function. The stack pointer that we need to
- * restore is potentially many stack frames higher up, so the
- * distance between them can easily be more than the red zone
- * size. Hence the stack pointer can be restored only after
- * we have finished loading everything from the context.
- */
- amd64_mov_reg_membase (code, AMD64_R8, AMD64_R11, gregs_offset + (AMD64_RSP * 8), 8);
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, gregs_offset + (AMD64_RIP * 8), 8);
- amd64_mov_reg_reg (code, AMD64_RSP, AMD64_R8, 8);
+ amd64_test_reg_reg (code, AMD64_R11, AMD64_R11);
+ label_leave_tramp [2] = code;
+ x86_branch8 (code, X86_CC_Z, 0, FALSE);
- /* jump to the saved IP */
- amd64_jump_reg (code, AMD64_R11);
-#endif
+ amd64_sse_movsd_membase_reg (code, AMD64_R11, 0, AMD64_XMM0);
+ for (i = 0; i < 3; i++)
+ x86_patch (label_leave_tramp [i], code);
+
+ amd64_alu_reg_imm (code, X86_ADD, AMD64_RSP, ALIGN_TO (framesize, MONO_ARCH_FRAME_ALIGNMENT));
+ amd64_pop_reg (code, AMD64_RBP);
+ amd64_ret (code);
mono_arch_flush_icache (start, code - start);
mono_profiler_code_buffer_new (start, code - start, MONO_PROFILER_CODE_BUFFER_EXCEPTION_HANDLING, NULL);
*info = mono_tramp_info_create ("enter_icall_trampoline", start, code - start, ji, unwind_ops);
return start;
+#else
+ g_assert_not_reached ();
+ return NULL;
+#endif /* ENABLE_INTERPRETER */
}
#endif /* !DISABLE_JIT */
projects / mono.git / blobdiff