-/*
- * tramp-amd64.c: JIT trampoline code for amd64
+/**
+ * \file
+ * JIT trampoline code for amd64
*
* Authors:
* Dietmar Maurer (dietmar@ximian.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>
/*
* mono_arch_get_static_rgctx_trampoline:
*
- * Create a trampoline which sets RGCTX_REG to MRGCTX, then jumps to ADDR.
+ * Create a trampoline which sets RGCTX_REG to ARG, then jumps to ADDR.
*/
gpointer
-mono_arch_get_static_rgctx_trampoline (MonoMethod *m, MonoMethodRuntimeGenericContext *mrgctx, gpointer addr)
+mono_arch_get_static_rgctx_trampoline (gpointer arg, gpointer addr)
{
guint8 *code, *start;
GSList *unwind_ops;
unwind_ops = mono_arch_get_cie_program ();
- amd64_mov_reg_imm (code, MONO_ARCH_RGCTX_REG, mrgctx);
+ amd64_mov_reg_imm (code, MONO_ARCH_RGCTX_REG, arg);
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)));
return buf;
}
-#endif /* !DISABLE_JIT */
/*
* mono_arch_get_enter_icall_trampoline:
mono_arch_get_enter_icall_trampoline (MonoTrampInfo **info)
{
#ifdef ENABLE_INTERPRETER
- const int gregs_num = 6;
- guint8 *start = NULL, *code, *exits [gregs_num], *leave_tramp;
+ const int gregs_num = 12;
+ 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, AMD64_R8, AMD64_R9};
- int i, offset = 0;
+ 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;
+
+ 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 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 (i = 0; i < fregs_num; ++i) {
+ amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
+ label_fexits [i] = code;
+ x86_branch8 (code, X86_CC_Z, 0, FALSE);
+ amd64_sse_movsd_reg_membase (code, farg_regs [i], AMD64_R11, i * sizeof (double));
+ amd64_dec_reg_size (code, AMD64_RAX, 1);
+ }
+
+ 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, 8);
- /* load pointer to iregs into R11 */ // TODO: struct offset
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 8, 8);
+ amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 0, sizeof (mgreg_t));
+ int stack_offset = 0;
for (i = 0; i < gregs_num; i++) {
amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
- exits [i] = code;
- x86_branch8 (code, X86_CC_Z, 0, FALSE);
+ label_gexits [i] = code;
+ x86_branch32 (code, X86_CC_Z, 0, FALSE);
-#ifdef TARGET_WIN32
- if (i < 4) {
-#else
- if (i < 6) {
-#endif
- amd64_mov_reg_membase (code, arg_regs [i], AMD64_R11, i * sizeof (gpointer), 8);
+ /* 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 {
- g_error ("not tested yet.");
- amd64_push_reg (code, AMD64_RAX);
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, i * sizeof (gpointer), 8);
- amd64_mov_membase_reg (code, AMD64_RBP, offset, AMD64_RAX, sizeof (gpointer));
- offset += sizeof (gpointer);
- amd64_pop_reg (code, AMD64_RAX);
+ 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 (exits [i], code);
+ x86_patch (label_gexits [i], code);
}
-
- amd64_pop_reg (code, AMD64_RAX);
- amd64_pop_reg (code, AMD64_R11);
+ /* 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));
+
+ label_leave_tramp [1] = code;
+ x86_jump8 (code, 0);
- x86_patch (leave_tramp, code);
- amd64_ret (code);
+ /* 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));
+
+ amd64_test_reg_reg (code, AMD64_R11, AMD64_R11);
+ label_leave_tramp [2] = code;
+ x86_branch8 (code, X86_CC_Z, 0, FALSE);
+
+ 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);
return NULL;
#endif /* ENABLE_INTERPRETER */
}
+#endif /* !DISABLE_JIT */
#ifdef DISABLE_JIT
gpointer
}
gpointer
-mono_arch_get_static_rgctx_trampoline (MonoMethod *m, MonoMethodRuntimeGenericContext *mrgctx, gpointer addr)
+mono_arch_get_static_rgctx_trampoline (gpointer arg, gpointer addr)
{
g_assert_not_reached ();
return NULL;
projects / mono.git / blobdiff