-/*
- * tramp-x86.c: JIT trampoline code for x86
+/**
+ * \file
+ * JIT trampoline code for x86
*
* Authors:
* Dietmar Maurer (dietmar@ximian.com)
#include <mono/metadata/metadata-internals.h>
#include <mono/metadata/marshal.h>
#include <mono/metadata/tabledefs.h>
-#include <mono/metadata/mono-debug.h>
-#include <mono/metadata/mono-debug-debugger.h>
#include <mono/metadata/profiler-private.h>
#include <mono/metadata/gc-internals.h>
#include <mono/arch/x86/x86-codegen.h>
mono_arch_get_unbox_trampoline (MonoMethod *m, gpointer addr)
{
guint8 *code, *start;
- int this_pos = 4, size = NACL_SIZE(16, 32);
+ int this_pos = 4, size = 16;
MonoDomain *domain = mono_domain_get ();
GSList *unwind_ops;
x86_jump_code (code, addr);
g_assert ((code - start) < size);
- nacl_domain_code_validate (domain, &start, size, &code);
- mono_profiler_code_buffer_new (start, code - start, MONO_PROFILER_CODE_BUFFER_UNBOX_TRAMPOLINE, m);
+ MONO_PROFILER_RAISE (jit_code_buffer, (start, code - start, MONO_PROFILER_CODE_BUFFER_UNBOX_TRAMPOLINE, m));
mono_tramp_info_register (mono_tramp_info_create (NULL, start, code - start, NULL, unwind_ops), domain);
}
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;
int buf_len;
MonoDomain *domain = mono_domain_get ();
- buf_len = NACL_SIZE (10, 32);
+ buf_len = 10;
start = code = mono_domain_code_reserve (domain, buf_len);
unwind_ops = mono_arch_get_cie_program ();
- x86_mov_reg_imm (code, MONO_ARCH_RGCTX_REG, mrgctx);
+ x86_mov_reg_imm (code, MONO_ARCH_RGCTX_REG, arg);
x86_jump_code (code, addr);
g_assert ((code - start) <= buf_len);
- nacl_domain_code_validate (domain, &start, buf_len, &code);
mono_arch_flush_icache (start, code - start);
- mono_profiler_code_buffer_new (start, code - start, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL);
+ MONO_PROFILER_RAISE (jit_code_buffer, (start, code - start, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL));
mono_tramp_info_register (mono_tramp_info_create (NULL, start, code - start, NULL, unwind_ops), domain);
void
mono_arch_patch_callsite (guint8 *method_start, guint8 *orig_code, guint8 *addr)
{
-#if defined(__default_codegen__)
guint8 *code;
guint8 buf [8];
gboolean can_write = mono_breakpoint_clean_code (method_start, orig_code, 8, buf, sizeof (buf));
code [4], code [5], code [6]);
g_assert_not_reached ();
}
-#elif defined(__native_client__)
- /* Target must be bundle-aligned */
- g_assert (((guint32)addr & kNaClAlignmentMask) == 0);
-
- /* 0xe8 = call <DISP>, 0xe9 = jump <DISP> */
- if ((orig_code [-5] == 0xe8) || orig_code [-6] == 0xe9) {
- int ret;
- gint32 offset = (gint32)addr - (gint32)orig_code;
- guint8 buf[sizeof(gint32)];
- *((gint32*)(buf)) = offset;
- ret = nacl_dyncode_modify (orig_code - sizeof(gint32), buf, sizeof(gint32));
- g_assert (ret == 0);
- } else {
- printf ("Invalid trampoline sequence %p: %02x %02x %02x %02x %02x\n", orig_code, orig_code [-5], orig_code [-4], orig_code [-3], orig_code [-2], orig_code[-1]);
- g_assert_not_reached ();
- }
-#endif
}
void
/* Patch the jump table entry used by the plt entry */
-#if defined(__native_client_codegen__) || defined(__native_client__)
- /* for both compiler and runtime */
- /* A PLT entry: */
- /* mov <DISP>(%ebx), %ecx */
- /* and 0xffffffe0, %ecx */
- /* jmp *%ecx */
- g_assert (code [0] == 0x8b);
- g_assert (code [1] == 0x8b);
-
- offset = *(guint32*)(code + 2);
-#elif defined(__default_codegen__)
/* A PLT entry: jmp *<DISP>(%ebx) */
g_assert (code [0] == 0xff);
g_assert (code [1] == 0xa3);
offset = *(guint32*)(code + 2);
-#endif /* __native_client_codegen__ */
if (!got)
got = (gpointer*)(gsize) regs [MONO_ARCH_GOT_REG];
*(guint8**)((guint8*)got + offset) = addr;
static gpointer
get_vcall_slot (guint8 *code, mgreg_t *regs, int *displacement)
{
- const int kBufSize = NACL_SIZE (8, 16);
+ const int kBufSize = 8;
guint8 buf [64];
guint8 reg = 0;
gint32 disp = 0;
if ((code [0] == 0xff) && ((code [1] & 0x18) == 0x10) && ((code [1] >> 6) == 2)) {
reg = code [1] & 0x07;
disp = *((gint32*)(code + 2));
-#if defined(__native_client_codegen__) || defined(__native_client__)
- } else if ((code[1] == 0x83) && (code[2] == 0xe1) && (code[4] == 0xff) &&
- (code[5] == 0xd1) && (code[-5] == 0x8b)) {
- disp = *((gint32*)(code - 3));
- reg = code[-4] & 0x07;
- } else if ((code[-2] == 0x8b) && (code[1] == 0x83) && (code[4] == 0xff)) {
- reg = code[-1] & 0x07;
- disp = (signed char)code[0];
-#endif
} else {
g_assert_not_reached ();
return NULL;
mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
x86_ret (code);
} else {
- /* The trampoline argument is at the top of the stack, and it contains the address we need to branch to */
- if (tramp_type == MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD) {
- x86_pop_reg (code, X86_EAX);
- cfa_offset -= sizeof (mgreg_t);
- mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
- x86_alu_reg_imm (code, X86_ADD, X86_ESP, 0x8);
- x86_jump_reg (code, X86_EAX);
- } else {
- x86_ret (code);
- }
+ x86_ret (code);
}
- nacl_global_codeman_validate (&buf, 256, &code);
g_assert ((code - buf) <= 256);
- mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL);
+ MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_HELPER, NULL));
tramp_name = mono_get_generic_trampoline_name (tramp_type);
*info = mono_tramp_info_create (tramp_name, buf, code - buf, ji, unwind_ops);
tramp = mono_get_trampoline_code (tramp_type);
- code = buf = mono_domain_code_reserve_align (domain, TRAMPOLINE_SIZE, NACL_SIZE (4, kNaClAlignment));
+ code = buf = mono_domain_code_reserve_align (domain, TRAMPOLINE_SIZE, 4);
x86_push_imm (buf, arg1);
x86_jump_code (buf, tramp);
g_assert ((buf - code) <= TRAMPOLINE_SIZE);
- nacl_domain_code_validate (domain, &code, NACL_SIZE (4, kNaClAlignment), &buf);
-
mono_arch_flush_icache (code, buf - code);
- mono_profiler_code_buffer_new (code, buf - code, MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE, mono_get_generic_trampoline_simple_name (tramp_type));
+ MONO_PROFILER_RAISE (jit_code_buffer, (code, buf - code, MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE, mono_get_generic_trampoline_simple_name (tramp_type)));
if (code_len)
*code_len = buf - code;
index -= size - 1;
}
-#if defined(__default_codegen__)
tramp_size = (aot ? 64 : 36) + 6 * depth;
-#elif defined(__native_client_codegen__)
- tramp_size = (aot ? 64 : 36) + 2 * kNaClAlignment +
- 6 * (depth + kNaClAlignment);
-#endif
code = buf = mono_global_codeman_reserve (tramp_size);
x86_jump_code (code, tramp);
}
- nacl_global_codeman_validate (&buf, tramp_size, &code);
mono_arch_flush_icache (buf, code - buf);
- mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL);
+ MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL));
g_assert (code - buf <= tramp_size);
x86_jump_reg (code, X86_EAX);
- nacl_global_codeman_validate (&buf, tramp_size, &code);
mono_arch_flush_icache (buf, code - buf);
- mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL);
+ MONO_PROFILER_RAISE (jit_code_buffer, (buf, code - buf, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL));
g_assert (code - buf <= tramp_size);
x86_call_code (code, (guint8*)func);
}
-static gpointer
-handler_block_trampoline_helper (void)
-{
- MonoJitTlsData *jit_tls = mono_native_tls_get_value (mono_jit_tls_id);
- return jit_tls->handler_block_return_address;
-}
-
-gpointer
-mono_arch_create_handler_block_trampoline (MonoTrampInfo **info, gboolean aot)
-{
- guint8 *tramp = mono_get_trampoline_code (MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD);
- guint8 *code, *buf;
- int tramp_size = 64;
- MonoJumpInfo *ji = NULL;
- int cfa_offset;
- GSList *unwind_ops = NULL;
-
- g_assert (!aot);
-
- code = buf = mono_global_codeman_reserve (tramp_size);
-
- unwind_ops = mono_arch_get_cie_program ();
- cfa_offset = sizeof (mgreg_t);
- /*
- This trampoline restore the call chain of the handler block then jumps into the code that deals with it.
- */
-
- /*
- * We are in a method frame after the call emitted by OP_CALL_HANDLER.
- */
-
- if (mono_get_jit_tls_offset () != -1) {
- code = mono_x86_emit_tls_get (code, X86_EAX, mono_get_jit_tls_offset ());
- x86_mov_reg_membase (code, X86_EAX, X86_EAX, MONO_STRUCT_OFFSET (MonoJitTlsData, handler_block_return_address), 4);
- } else {
- /*Slow path uses a c helper*/
- x86_call_code (code, handler_block_trampoline_helper);
- }
- /* Simulate a call */
- /*Fix stack alignment*/
- x86_alu_reg_imm (code, X86_SUB, X86_ESP, 0x4);
- cfa_offset += sizeof (mgreg_t);
- mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
-
- /* This is the address the trampoline will return to */
- x86_push_reg (code, X86_EAX);
- cfa_offset += sizeof (mgreg_t);
- mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
-
- /* Dummy trampoline argument, since we call the generic trampoline directly */
- x86_push_imm (code, 0);
- cfa_offset += sizeof (mgreg_t);
- mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
- x86_jump_code (code, tramp);
-
- nacl_global_codeman_validate (&buf, tramp_size, &code);
-
- 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);
-
- *info = mono_tramp_info_create ("handler_block_trampoline", buf, code - buf, ji, unwind_ops);
-
- return buf;
-}
-
guint8*
mono_arch_get_call_target (guint8 *code)
{
guint32
mono_arch_get_plt_info_offset (guint8 *plt_entry, mgreg_t *regs, guint8 *code)
{
- return *(guint32*)(plt_entry + NACL_SIZE (6, 12));
+ return *(guint32*)(plt_entry + 6);
}
/*
x86_jump_code (code, addr);
g_assert ((code - start) <= buf_len);
- nacl_domain_code_validate (domain, &start, buf_len, &code);
mono_arch_flush_icache (start, code - start);
- mono_profiler_code_buffer_new (start, code - start, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL);
+ MONO_PROFILER_RAISE (jit_code_buffer, (start, code - start, MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE, NULL));
mono_tramp_info_register (mono_tramp_info_create (NULL, start, code - start, NULL, unwind_ops), domain);
return buf;
}
-#if defined(ENABLE_GSHAREDVT)
-
-#include "../../../mono-extensions/mono/mini/tramp-x86-gsharedvt.c"
-
-#else
-
gpointer
-mono_arch_get_gsharedvt_trampoline (MonoTrampInfo **info, gboolean aot)
+mono_arch_get_enter_icall_trampoline (MonoTrampInfo **info)
{
- *info = NULL;
+ g_assert_not_reached ();
return NULL;
}
-#endif /* !MONOTOUCH */
projects / mono.git / blobdiff