* Zoltan Varga (vargaz@gmail.com)
*
* (C) 2001 Ximian, Inc.
+ * Copyright 2003-2011 Novell, Inc (http://www.novell.com)
+ * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
*/
#include <config.h>
#include <mono/metadata/tabledefs.h>
#include <mono/metadata/mono-debug-debugger.h>
#include <mono/metadata/monitor.h>
+#include <mono/metadata/monitor.h>
+#include <mono/metadata/gc-internal.h>
#include <mono/arch/amd64/amd64-codegen.h>
-#ifdef HAVE_VALGRIND_MEMCHECK_H
-#include <valgrind/memcheck.h>
-#endif
+#include <mono/utils/memcheck.h>
#include "mini.h"
#include "mini-amd64.h"
+#if defined(__native_client_codegen__) && defined(__native_client__)
+#include <malloc.h>
+#include <sys/nacl_syscalls.h>
+#endif
+
#define IS_REX(inst) (((inst) >= 0x40) && ((inst) <= 0x4f))
static guint8* nullified_class_init_trampoline;
/*
* mono_arch_get_unbox_trampoline:
- * @gsctx: the generic sharing context
* @m: method pointer
* @addr: pointer to native code for @m
*
* unboxing before calling the method
*/
gpointer
-mono_arch_get_unbox_trampoline (MonoGenericSharingContext *gsctx, MonoMethod *m, gpointer addr)
+mono_arch_get_unbox_trampoline (MonoMethod *m, gpointer addr)
{
guint8 *code, *start;
int this_reg;
MonoDomain *domain = mono_domain_get ();
- this_reg = mono_arch_get_this_arg_reg (mono_method_signature (m), gsctx, NULL);
+ this_reg = mono_arch_get_this_arg_reg (NULL);
start = code = mono_domain_code_reserve (domain, 20);
amd64_jump_reg (code, AMD64_RAX);
g_assert ((code - start) < 20);
+ nacl_domain_code_validate (domain, &start, 20, &code);
+
+ mono_arch_flush_icache (start, code - start);
+
+ return start;
+}
+
+/*
+ * mono_arch_get_static_rgctx_trampoline:
+ *
+ * Create a trampoline which sets RGCTX_REG to MRGCTX, then jumps to ADDR.
+ */
+gpointer
+mono_arch_get_static_rgctx_trampoline (MonoMethod *m, MonoMethodRuntimeGenericContext *mrgctx, gpointer addr)
+{
+ guint8 *code, *start;
+ int buf_len;
+
+ MonoDomain *domain = mono_domain_get ();
+
+#ifdef MONO_ARCH_NOMAP32BIT
+ buf_len = 32;
+#else
+ /* AOTed code could still have a non-32 bit address */
+ if ((((guint64)addr) >> 32) == 0)
+ buf_len = 16;
+ else
+ buf_len = 30;
+#endif
+
+ start = code = mono_domain_code_reserve (domain, buf_len);
+
+ amd64_mov_reg_imm (code, MONO_ARCH_RGCTX_REG, mrgctx);
+ amd64_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);
+
+ return start;
+}
+
+gpointer
+mono_arch_get_llvm_imt_trampoline (MonoDomain *domain, MonoMethod *m, int vt_offset)
+{
+ guint8 *code, *start;
+ int buf_len;
+ int this_reg;
+
+ buf_len = 32;
+
+ start = code = mono_domain_code_reserve (domain, buf_len);
+
+ this_reg = mono_arch_get_this_arg_reg (NULL);
+
+ /* Set imt arg */
+ amd64_mov_reg_imm (code, MONO_ARCH_IMT_REG, m);
+ /* Load vtable address */
+ amd64_mov_reg_membase (code, AMD64_RAX, this_reg, 0, 8);
+ amd64_jump_membase (code, AMD64_RAX, vt_offset);
+ amd64_ret (code);
+
+ g_assert ((code - start) < buf_len);
+
+ nacl_domain_code_validate (domain, &start, buf_len, &code);
+
mono_arch_flush_icache (start, code - start);
return start;
void
mono_arch_patch_callsite (guint8 *method_start, guint8 *orig_code, guint8 *addr)
{
+#if defined(__default_codegen__)
guint8 *code;
guint8 buf [16];
gboolean can_write = mono_breakpoint_clean_code (method_start, orig_code, 14, buf, sizeof (buf));
code = buf + 14;
+ /* mov 64-bit imm into r11 (followed by call reg?) or direct call*/
if (((code [-13] == 0x49) && (code [-12] == 0xbb)) || (code [-5] == 0xe8)) {
if (code [-5] != 0xe8) {
if (can_write) {
InterlockedExchangePointer ((gpointer*)(orig_code - 11), addr);
-#ifdef HAVE_VALGRIND_MEMCHECK_H
VALGRIND_DISCARD_TRANSLATIONS (orig_code - 11, sizeof (gpointer));
-#endif
}
} else {
- if ((((guint64)(addr)) >> 32) != 0) {
+ gboolean disp_32bit = ((((gint64)addr - (gint64)orig_code)) < (1 << 30)) && ((((gint64)addr - (gint64)orig_code)) > -(1 << 30));
+
+ if ((((guint64)(addr)) >> 32) != 0 && !disp_32bit) {
+#ifdef MONO_ARCH_NOMAP32BIT
/* Print some diagnostics */
MonoJitInfo *ji = mono_jit_info_table_find (mono_domain_get (), (char*)orig_code);
if (ji)
if (ji)
fprintf (stderr, "Callee: %s\n", mono_method_full_name (ji->method, TRUE));
g_assert_not_reached ();
+#else
+ /*
+ * This might happen when calling AOTed code. Create a thunk.
+ */
+ guint8 *thunk_start, *thunk_code;
+
+ thunk_start = thunk_code = mono_domain_code_reserve (mono_domain_get (), 32);
+ amd64_jump_membase (thunk_code, AMD64_RIP, 0);
+ *(guint64*)thunk_code = (guint64)addr;
+ addr = thunk_start;
+ g_assert ((((guint64)(addr)) >> 32) == 0);
+ mono_arch_flush_icache (thunk_start, thunk_code - thunk_start);
+#endif
}
- g_assert ((((guint64)(orig_code)) >> 32) == 0);
if (can_write) {
InterlockedExchange ((gint32*)(orig_code - 4), ((gint64)addr - (gint64)orig_code));
-#ifdef HAVE_VALGRIND_MEMCHECK_H
VALGRIND_DISCARD_TRANSLATIONS (orig_code - 5, 4);
-#endif
}
}
}
gpointer *got_entry = (gpointer*)((guint8*)orig_code + (*(guint32*)(orig_code - 4)));
if (can_write) {
InterlockedExchangePointer (got_entry, addr);
-#ifdef HAVE_VALGRIND_MEMCHECK_H
VALGRIND_DISCARD_TRANSLATIONS (orig_code - 5, sizeof (gpointer));
-#endif
}
}
+#elif defined(__native_client__)
+ /* These are essentially the same 2 cases as above, modified for NaCl*/
+
+ /* Target must be bundle-aligned */
+ g_assert (((guint32)addr & kNaClAlignmentMask) == 0);
+ /* Return target must be bundle-aligned */
+ g_assert (((guint32)orig_code & kNaClAlignmentMask) == 0);
+
+ if (orig_code[-5] == 0xe8) {
+ /* Direct call */
+ 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 if (is_nacl_call_reg_sequence (orig_code - 10) && orig_code[-16] == 0x41 && orig_code[-15] == 0xbb) {
+ int ret;
+ guint8 buf[sizeof(gint32)];
+ *((gint32 *)(buf)) = addr;
+ /* orig_code[-14] is the start of the immediate. */
+ ret = nacl_dyncode_modify (orig_code - 14, buf, sizeof(gint32));
+ g_assert (ret == 0);
+ }
+ else {
+ g_assert_not_reached ();
+ }
+
+ return;
+#endif
+}
+
+guint8*
+mono_arch_create_llvm_native_thunk (MonoDomain *domain, guint8 *addr)
+{
+ /*
+ * The caller is LLVM code and the call displacement might exceed 32 bits. We can't determine the caller address, so
+ * we add a thunk every time.
+ * Since the caller is also allocated using the domain code manager, hopefully the displacement will fit into 32 bits.
+ * FIXME: Avoid this if possible if !MONO_ARCH_NOMAP32BIT and ADDR is 32 bits.
+ */
+ guint8 *thunk_start, *thunk_code;
+
+ thunk_start = thunk_code = mono_domain_code_reserve (mono_domain_get (), 32);
+ amd64_jump_membase (thunk_code, AMD64_RIP, 0);
+ *(guint64*)thunk_code = (guint64)addr;
+ addr = thunk_start;
+ mono_arch_flush_icache (thunk_start, thunk_code - thunk_start);
+ return addr;
}
void
-mono_arch_patch_plt_entry (guint8 *code, guint8 *addr)
+mono_arch_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr)
{
gint32 disp;
gpointer *plt_jump_table_entry;
+#if defined(__default_codegen__)
/* A PLT entry: jmp *<DISP>(%rip) */
g_assert (code [0] == 0xff);
g_assert (code [1] == 0x25);
disp = *(gint32*)(code + 2);
plt_jump_table_entry = (gpointer*)(code + 6 + disp);
+#elif defined(__native_client_codegen__)
+ /* A PLT entry: */
+ /* mov <DISP>(%rip), %r11d */
+ /* nacljmp *%r11 */
+
+ /* Verify the 'mov' */
+ g_assert (code [0] == 0x45);
+ g_assert (code [1] == 0x8b);
+ g_assert (code [2] == 0x1d);
+
+ disp = *(gint32*)(code + 3);
+
+ /* 7 = 3 (mov opcode) + 4 (disp) */
+ /* This needs to resolve to the target of the RIP-relative offset */
+ plt_jump_table_entry = (gpointer*)(code + 7 + disp);
+
+#endif /* __native_client_codegen__ */
+
InterlockedExchangePointer (plt_jump_table_entry, addr);
}
+static gpointer
+get_vcall_slot (guint8 *code, mgreg_t *regs, int *displacement)
+{
+ guint8 buf [10];
+ gint32 disp;
+ MonoJitInfo *ji = NULL;
+
+#ifdef ENABLE_LLVM
+ /* code - 9 might be before the start of the method */
+ /* FIXME: Avoid this expensive call somehow */
+ ji = mono_jit_info_table_find (mono_domain_get (), (char*)code);
+#endif
+
+ mono_breakpoint_clean_code (ji ? ji->code_start : NULL, code, 9, buf, sizeof (buf));
+ code = buf + 9;
+
+ *displacement = 0;
+
+ code -= 7;
+
+ if ((code [0] == 0x41) && (code [1] == 0xff) && (code [2] == 0x15)) {
+ /* call OFFSET(%rip) */
+ g_assert_not_reached ();
+ *displacement = *(guint32*)(code + 3);
+ return (gpointer*)(code + disp + 7);
+ } else {
+ g_assert_not_reached ();
+ return NULL;
+ }
+}
+
+static gpointer*
+get_vcall_slot_addr (guint8* code, mgreg_t *regs)
+{
+ gpointer vt;
+ int displacement;
+ vt = get_vcall_slot (code, regs, &displacement);
+ if (!vt)
+ return NULL;
+ return (gpointer*)((char*)vt + displacement);
+}
+
void
-mono_arch_nullify_class_init_trampoline (guint8 *code, gssize *regs)
+mono_arch_nullify_class_init_trampoline (guint8 *code, mgreg_t *regs)
{
guint8 buf [16];
- gboolean can_write = mono_breakpoint_clean_code (NULL, code, 7, buf, sizeof (buf));
+ MonoJitInfo *ji = NULL;
+ gboolean can_write;
+
+ if (mono_use_llvm) {
+ /* code - 7 might be before the start of the method */
+ /* FIXME: Avoid this expensive call somehow */
+ ji = mono_jit_info_table_find (mono_domain_get (), (char*)code);
+ }
+
+ can_write = mono_breakpoint_clean_code (ji ? ji->code_start : NULL, code, 7, buf, sizeof (buf));
if (!can_write)
return;
- code -= 3;
-
/*
* A given byte sequence can match more than case here, so we have to be
* really careful about the ordering of the cases. Longer sequences
* come first.
*/
- if ((code [-4] == 0x41) && (code [-3] == 0xff) && (code [-2] == 0x15)) {
+ if ((buf [0] == 0x41) && (buf [1] == 0xff) && (buf [2] == 0x15)) {
gpointer *vtable_slot;
/* call *<OFFSET>(%rip) */
- vtable_slot = mono_arch_get_vcall_slot_addr (code + 3, (gpointer*)regs);
+ vtable_slot = get_vcall_slot_addr (code, regs);
g_assert (vtable_slot);
*vtable_slot = nullified_class_init_trampoline;
- } else if (code [-2] == 0xe8) {
+ } else if (buf [2] == 0xe8) {
/* call <TARGET> */
- guint8 *buf = code - 2;
+ //guint8 *buf = code - 2;
/*
* It would be better to replace the call with nops, but that doesn't seem
buf [4] = 0x90;
*/
- mono_arch_patch_callsite (NULL, code - 2 + 5, nullified_class_init_trampoline);
- } else if ((code [0] == 0x41) && (code [1] == 0xff)) {
- /* call <REG> */
- /* happens on machines without MAP_32BIT like freebsd */
- /* amd64_set_reg_template is 10 bytes long */
- guint8* buf = code - 10;
-
- /* FIXME: Make this thread safe */
- /* Padding code suggested by the AMD64 Opt Manual */
- buf [0] = 0x66;
- buf [1] = 0x66;
- buf [2] = 0x66;
- buf [3] = 0x90;
- buf [4] = 0x66;
- buf [5] = 0x66;
- buf [6] = 0x66;
- buf [7] = 0x90;
- buf [8] = 0x66;
- buf [9] = 0x66;
- buf [10] = 0x90;
- buf [11] = 0x66;
- buf [12] = 0x90;
- } else if (code [0] == 0x90 || code [0] == 0xeb || code [0] == 0x66) {
+ mono_arch_patch_callsite (code - 5, code, nullified_class_init_trampoline);
+ } else if ((buf [5] == 0xff) && x86_modrm_mod (buf [6]) == 3 && x86_modrm_reg (buf [6]) == 2) {
+ /* call *<reg> */
+ /* Generated by the LLVM JIT or on platforms without MAP_32BIT set */
+ mono_arch_patch_callsite (code - 13, code, nullified_class_init_trampoline);
+ } else if (buf [4] == 0x90 || buf [5] == 0xeb || buf [6] == 0x66) {
/* Already changed by another thread */
;
} else {
- printf ("Invalid trampoline sequence: %x %x %x %x %x %x %x\n", code [0], code [1], code [2], code [3],
- code [4], code [5], code [6]);
+ printf ("Invalid trampoline sequence: %x %x %x %x %x %x %x\n", buf [0], buf [1], buf [2], buf [3],
+ buf [4], buf [5], buf [6]);
g_assert_not_reached ();
}
}
void
-mono_arch_nullify_plt_entry (guint8 *code)
+mono_arch_nullify_plt_entry (guint8 *code, mgreg_t *regs)
{
if (mono_aot_only && !nullified_class_init_trampoline)
- nullified_class_init_trampoline = mono_aot_get_named_code ("nullified_class_init_trampoline");
+ nullified_class_init_trampoline = mono_aot_get_trampoline ("nullified_class_init_trampoline");
- mono_arch_patch_plt_entry (code, nullified_class_init_trampoline);
+ mono_arch_patch_plt_entry (code, NULL, regs, nullified_class_init_trampoline);
}
-guchar*
-mono_arch_create_trampoline_code (MonoTrampolineType tramp_type)
+static void
+stack_unaligned (MonoTrampolineType tramp_type)
{
- MonoJumpInfo *ji;
- guint32 code_size;
- guchar *code;
- GSList *unwind_ops, *l;
-
- code = mono_arch_create_trampoline_code_full (tramp_type, &code_size, &ji, &unwind_ops, FALSE);
-
- mono_save_trampoline_xdebug_info ("<generic_trampoline>", code, code_size, unwind_ops);
-
- for (l = unwind_ops; l; l = l->next)
- g_free (l->data);
- g_slist_free (unwind_ops);
-
- return code;
+ printf ("%d\n", tramp_type);
+ g_assert_not_reached ();
}
guchar*
-mono_arch_create_trampoline_code_full (MonoTrampolineType tramp_type, guint32 *code_size, MonoJumpInfo **ji, GSList **out_unwind_ops, gboolean aot)
+mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInfo **info, gboolean aot)
{
guint8 *buf, *code, *tramp, *br [2], *r11_save_code, *after_r11_save_code;
int i, lmf_offset, offset, res_offset, arg_offset, rax_offset, tramp_offset, saved_regs_offset;
int saved_fpregs_offset, rbp_offset, framesize, orig_rsp_to_rbp_offset, cfa_offset;
gboolean has_caller;
GSList *unwind_ops = NULL;
+ MonoJumpInfo *ji = NULL;
+ const guint kMaxCodeSize = NACL_SIZE (600, 600*2);
+
+#if defined(__native_client_codegen__)
+ const guint kNaClTrampOffset = 17;
+#endif
- if (tramp_type == MONO_TRAMPOLINE_JUMP)
+ if (tramp_type == MONO_TRAMPOLINE_JUMP || tramp_type == MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD)
has_caller = FALSE;
else
has_caller = TRUE;
- code = buf = mono_global_codeman_reserve (538);
+ code = buf = mono_global_codeman_reserve (kMaxCodeSize);
- *ji = NULL;
-
- framesize = 538 + sizeof (MonoLMF);
+ framesize = kMaxCodeSize + sizeof (MonoLMF);
framesize = (framesize + (MONO_ARCH_FRAME_ALIGNMENT - 1)) & ~ (MONO_ARCH_FRAME_ALIGNMENT - 1);
orig_rsp_to_rbp_offset = 0;
/* Pop the return address off the stack */
amd64_pop_reg (code, AMD64_R11);
- orig_rsp_to_rbp_offset += 8;
+ orig_rsp_to_rbp_offset += sizeof(mgreg_t);
- cfa_offset -= 8;
+ cfa_offset -= sizeof(mgreg_t);
mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
/*
* Allocate a new stack frame
*/
amd64_push_reg (code, AMD64_RBP);
- cfa_offset += 8;
+ cfa_offset += sizeof(mgreg_t);
mono_add_unwind_op_def_cfa_offset (unwind_ops, code, buf, cfa_offset);
mono_add_unwind_op_offset (unwind_ops, code, buf, AMD64_RBP, - cfa_offset);
- orig_rsp_to_rbp_offset -= 8;
- amd64_mov_reg_reg (code, AMD64_RBP, AMD64_RSP, 8);
+ 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);
amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, framesize);
offset = 0;
rbp_offset = - offset;
- offset += 8;
+ offset += sizeof(mgreg_t);
rax_offset = - offset;
- offset += 8;
+ offset += sizeof(mgreg_t);
tramp_offset = - offset;
- offset += 8;
+ offset += sizeof(gpointer);
arg_offset = - offset;
/* Compute the trampoline address from the return address */
if (aot) {
+#if defined(__default_codegen__)
/* 7 = length of call *<offset>(rip) */
amd64_alu_reg_imm (code, X86_SUB, AMD64_R11, 7);
+#elif defined(__native_client_codegen__)
+ amd64_alu_reg_imm (code, X86_SUB, AMD64_R11, kNaClTrampOffset);
+#endif
} else {
/* 5 = length of amd64_call_membase () */
amd64_alu_reg_imm (code, X86_SUB, AMD64_R11, 5);
}
- amd64_mov_membase_reg (code, AMD64_RBP, tramp_offset, AMD64_R11, 8);
+ amd64_mov_membase_reg (code, AMD64_RBP, tramp_offset, AMD64_R11, sizeof(gpointer));
- offset += 8;
+ offset += sizeof(mgreg_t);
res_offset = - offset;
/* Save all registers */
- offset += AMD64_NREG * 8;
+ offset += AMD64_NREG * sizeof(mgreg_t);
saved_regs_offset = - offset;
for (i = 0; i < AMD64_NREG; ++i) {
if (i == AMD64_RBP) {
/* RAX is already saved */
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RBP, rbp_offset, 8);
- amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * 8), AMD64_RAX, 8);
+ amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RBP, rbp_offset, sizeof(mgreg_t));
+ amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), AMD64_RAX, sizeof(mgreg_t));
} else if (i != AMD64_R11) {
- amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * 8), i, 8);
+ amd64_mov_membase_reg (code, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), i, sizeof(mgreg_t));
} else {
/* We have to save R11 right at the start of
the trampoline code because it's used as a
scratch register */
- amd64_mov_membase_reg (r11_save_code, AMD64_RSP, saved_regs_offset + orig_rsp_to_rbp_offset + (i * 8), i, 8);
+ amd64_mov_membase_reg (r11_save_code, AMD64_RSP, saved_regs_offset + orig_rsp_to_rbp_offset + (i * sizeof(mgreg_t)), i, sizeof(mgreg_t));
g_assert (r11_save_code == after_r11_save_code);
}
}
- offset += 8 * 8;
+ offset += 8 * sizeof(mgreg_t);
saved_fpregs_offset = - offset;
for (i = 0; i < 8; ++i)
- amd64_movsd_membase_reg (code, AMD64_RBP, saved_fpregs_offset + (i * 8), i);
+ amd64_movsd_membase_reg (code, AMD64_RBP, saved_fpregs_offset + (i * sizeof(mgreg_t)), i);
+
+ /* Check that the stack is aligned */
+#if defined(__default_codegen__)
+ amd64_mov_reg_reg (code, AMD64_R11, AMD64_RSP, sizeof (mgreg_t));
+ amd64_alu_reg_imm (code, X86_AND, AMD64_R11, 15);
+ amd64_alu_reg_imm (code, X86_CMP, AMD64_R11, 0);
+ br [0] = code;
+ amd64_branch_disp (code, X86_CC_Z, 0, FALSE);
+ if (aot) {
+ amd64_mov_reg_imm (code, AMD64_R11, 0);
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0, 8);
+ } else {
+ amd64_mov_reg_imm (code, AMD64_RDI, tramp_type);
+ amd64_mov_reg_imm (code, AMD64_R11, stack_unaligned);
+ amd64_call_reg (code, AMD64_R11);
+ }
+ mono_amd64_patch (br [0], code);
+ //amd64_breakpoint (code);
+#endif
if (tramp_type != MONO_TRAMPOLINE_GENERIC_CLASS_INIT &&
- tramp_type != MONO_TRAMPOLINE_MONITOR_ENTER &&
- tramp_type != MONO_TRAMPOLINE_MONITOR_EXIT) {
+ tramp_type != MONO_TRAMPOLINE_MONITOR_ENTER &&
+ tramp_type != MONO_TRAMPOLINE_MONITOR_EXIT &&
+ tramp_type != MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD) {
/* Obtain the trampoline argument which is encoded in the instruction stream */
if (aot) {
/* Load the GOT offset */
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, tramp_offset, 8);
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, tramp_offset, sizeof(gpointer));
+#if defined(__default_codegen__)
amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 7, 4);
+#elif defined(__native_client_codegen__)
+ /* The arg is hidden in a "push imm32" instruction, */
+ /* add one to skip the opcode. */
+ amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, kNaClTrampOffset+1, 4);
+#endif
/* Compute the address of the GOT slot */
- amd64_alu_reg_reg_size (code, X86_ADD, AMD64_R11, AMD64_RAX, 8);
+ amd64_alu_reg_reg_size (code, X86_ADD, AMD64_R11, AMD64_RAX, sizeof(gpointer));
/* Load the value */
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0, 8);
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 0, sizeof(gpointer));
} else {
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, tramp_offset, 8);
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, tramp_offset, sizeof(gpointer));
+#if defined(__default_codegen__)
amd64_mov_reg_membase (code, AMD64_RAX, AMD64_R11, 5, 1);
amd64_widen_reg (code, AMD64_RAX, AMD64_RAX, TRUE, FALSE);
amd64_alu_reg_imm_size (code, X86_CMP, AMD64_RAX, 4, 1);
mono_amd64_patch (br [0], code);
amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 6, 8);
mono_amd64_patch (br [1], code);
+#elif defined(__native_client_codegen__)
+ /* All args are 32-bit pointers in NaCl */
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_R11, 6, 4);
+#endif
}
- amd64_mov_membase_reg (code, AMD64_RBP, arg_offset, AMD64_R11, 8);
+ amd64_mov_membase_reg (code, AMD64_RBP, arg_offset, AMD64_R11, sizeof(gpointer));
} else {
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, saved_regs_offset + (MONO_AMD64_ARG_REG1 * 8), 8);
- amd64_mov_membase_reg (code, AMD64_RBP, arg_offset, AMD64_R11, 8);
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, saved_regs_offset + (MONO_AMD64_ARG_REG1 * sizeof(mgreg_t)), sizeof(mgreg_t));
+ amd64_mov_membase_reg (code, AMD64_RBP, arg_offset, AMD64_R11, sizeof(gpointer));
}
/* Save LMF begin */
/* Save ip */
if (has_caller)
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, 8, 8);
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, 8, sizeof(gpointer));
else
amd64_mov_reg_imm (code, AMD64_R11, 0);
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, rip), AMD64_R11, 8);
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, rip), AMD64_R11, sizeof(mgreg_t));
/* Save fp */
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RSP, framesize, 8);
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, rbp), AMD64_R11, 8);
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RSP, framesize, sizeof(mgreg_t));
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, rbp), AMD64_R11, sizeof(mgreg_t));
/* Save sp */
- amd64_mov_reg_reg (code, AMD64_R11, AMD64_RSP, 8);
+ amd64_mov_reg_reg (code, AMD64_R11, AMD64_RSP, sizeof(mgreg_t));
amd64_alu_reg_imm (code, X86_ADD, AMD64_R11, framesize + 16);
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, rsp), AMD64_R11, 8);
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, rsp), AMD64_R11, sizeof(mgreg_t));
/* Save method */
if (tramp_type == MONO_TRAMPOLINE_JIT || tramp_type == MONO_TRAMPOLINE_JUMP) {
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, arg_offset, 8);
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, method), AMD64_R11, 8);
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, arg_offset, sizeof(gpointer));
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, method), AMD64_R11, sizeof(gpointer));
} else {
- amd64_mov_membase_imm (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, method), 0, 8);
+ amd64_mov_membase_imm (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, method), 0, sizeof(gpointer));
}
/* Save callee saved regs */
-#ifdef PLATFORM_WIN32
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, rdi), AMD64_RDI, 8);
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, rsi), AMD64_RSI, 8);
+#ifdef TARGET_WIN32
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, rdi), AMD64_RDI, sizeof(mgreg_t));
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, rsi), AMD64_RSI, sizeof(mgreg_t));
#endif
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, rbx), AMD64_RBX, 8);
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, r12), AMD64_R12, 8);
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, r13), AMD64_R13, 8);
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, r14), AMD64_R14, 8);
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, r15), AMD64_R15, 8);
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, rbx), AMD64_RBX, sizeof(mgreg_t));
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, r12), AMD64_R12, sizeof(mgreg_t));
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, r13), AMD64_R13, sizeof(mgreg_t));
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, r14), AMD64_R14, sizeof(mgreg_t));
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, r15), AMD64_R15, sizeof(mgreg_t));
if (aot) {
- *ji = mono_patch_info_list_prepend (*ji, code - buf, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_get_lmf_addr");
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
+ code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_get_lmf_addr");
} else {
amd64_mov_reg_imm (code, AMD64_R11, mono_get_lmf_addr);
}
amd64_call_reg (code, AMD64_R11);
/* Save lmf_addr */
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, lmf_addr), AMD64_RAX, 8);
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, lmf_addr), AMD64_RAX, sizeof(gpointer));
/* Save previous_lmf */
/* Set the lowest bit to 1 to signal that this LMF has the ip field set */
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RAX, 0, 8);
- amd64_alu_reg_imm_size (code, X86_ADD, AMD64_R11, 1, 8);
- amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, previous_lmf), AMD64_R11, 8);
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RAX, 0, sizeof(gpointer));
+ amd64_alu_reg_imm_size (code, X86_ADD, AMD64_R11, 1, sizeof(gpointer));
+ amd64_mov_membase_reg (code, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, previous_lmf), AMD64_R11, sizeof(gpointer));
/* Set new lmf */
amd64_lea_membase (code, AMD64_R11, AMD64_RBP, lmf_offset);
- amd64_mov_membase_reg (code, AMD64_RAX, 0, AMD64_R11, 8);
+ amd64_mov_membase_reg (code, AMD64_RAX, 0, AMD64_R11, sizeof(gpointer));
/* Save LMF end */
/* Arg2 is the address of the calling code */
if (has_caller)
- amd64_mov_reg_membase (code, AMD64_ARG_REG2, AMD64_RBP, 8, 8);
+ amd64_mov_reg_membase (code, AMD64_ARG_REG2, AMD64_RBP, 8, sizeof(gpointer));
else
amd64_mov_reg_imm (code, AMD64_ARG_REG2, 0);
/* Arg3 is the method/vtable ptr */
- amd64_mov_reg_membase (code, AMD64_ARG_REG3, AMD64_RBP, arg_offset, 8);
+ amd64_mov_reg_membase (code, AMD64_ARG_REG3, AMD64_RBP, arg_offset, sizeof(gpointer));
/* Arg4 is the trampoline address */
- amd64_mov_reg_membase (code, AMD64_ARG_REG4, AMD64_RBP, tramp_offset, 8);
+ amd64_mov_reg_membase (code, AMD64_ARG_REG4, AMD64_RBP, tramp_offset, sizeof(gpointer));
if (aot) {
char *icall_name = g_strdup_printf ("trampoline_func_%d", tramp_type);
- *ji = mono_patch_info_list_prepend (*ji, code - buf, MONO_PATCH_INFO_JIT_ICALL_ADDR, icall_name);
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RIP, 0, 8);
+ code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, icall_name);
} else {
tramp = (guint8*)mono_get_trampoline_func (tramp_type);
- amd64_mov_reg_imm (code, AMD64_RAX, tramp);
+ amd64_mov_reg_imm (code, AMD64_R11, tramp);
}
- amd64_call_reg (code, AMD64_RAX);
+ amd64_call_reg (code, AMD64_R11);
/* Check for thread interruption */
/* This is not perf critical code so no need to check the interrupt flag */
/*
* Have to call the _force_ variant, since there could be a protected wrapper on the top of the stack.
*/
- amd64_mov_membase_reg (code, AMD64_RBP, res_offset, AMD64_RAX, 8);
+ amd64_mov_membase_reg (code, AMD64_RBP, res_offset, AMD64_RAX, sizeof(mgreg_t));
if (aot) {
- *ji = mono_patch_info_list_prepend (*ji, code - buf, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_thread_force_interruption_checkpoint");
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RIP, 0, 8);
+ code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_thread_force_interruption_checkpoint");
} else {
- amd64_mov_reg_imm (code, AMD64_RAX, (guint8*)mono_thread_force_interruption_checkpoint);
+ amd64_mov_reg_imm (code, AMD64_R11, (guint8*)mono_thread_force_interruption_checkpoint);
}
- amd64_call_reg (code, AMD64_RAX);
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RBP, res_offset, 8);
+ amd64_call_reg (code, AMD64_R11);
+
+ amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RBP, res_offset, sizeof(mgreg_t));
/* Restore LMF */
- amd64_mov_reg_membase (code, AMD64_RCX, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, previous_lmf), 8);
- amd64_alu_reg_imm_size (code, X86_SUB, AMD64_RCX, 1, 8);
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, lmf_addr), 8);
- amd64_mov_membase_reg (code, AMD64_R11, 0, AMD64_RCX, 8);
+ amd64_mov_reg_membase (code, AMD64_RCX, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, previous_lmf), sizeof(gpointer));
+ amd64_alu_reg_imm_size (code, X86_SUB, AMD64_RCX, 1, sizeof(gpointer));
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RBP, lmf_offset + G_STRUCT_OFFSET (MonoLMF, lmf_addr), sizeof(gpointer));
+ amd64_mov_membase_reg (code, AMD64_R11, 0, AMD64_RCX, sizeof(gpointer));
/*
* Save rax to the stack, after the leave instruction, this will become part of
* the red zone.
*/
- amd64_mov_membase_reg (code, AMD64_RBP, rax_offset, AMD64_RAX, 8);
+ amd64_mov_membase_reg (code, AMD64_RBP, rax_offset, AMD64_RAX, sizeof(mgreg_t));
- /* Restore argument registers, r10 (needed to pass rgctx to
- static shared generic methods), r11 (imt register for
- interface calls), and rax (needed for direct calls to C vararg functions). */
+ /* Restore argument registers, r10 (imt method/rgxtx)
+ and rax (needed for direct calls to C vararg functions). */
for (i = 0; i < AMD64_NREG; ++i)
- if (AMD64_IS_ARGUMENT_REG (i) || i == AMD64_R10 || i == AMD64_R11 || i == AMD64_RAX)
- amd64_mov_reg_membase (code, i, AMD64_RBP, saved_regs_offset + (i * 8), 8);
+ if (AMD64_IS_ARGUMENT_REG (i) || i == AMD64_R10 || i == AMD64_RAX)
+ amd64_mov_reg_membase (code, i, AMD64_RBP, saved_regs_offset + (i * sizeof(mgreg_t)), sizeof(mgreg_t));
for (i = 0; i < 8; ++i)
- amd64_movsd_reg_membase (code, i, AMD64_RBP, saved_fpregs_offset + (i * 8));
+ amd64_movsd_reg_membase (code, i, AMD64_RBP, saved_fpregs_offset + (i * sizeof(mgreg_t)));
/* Restore stack */
amd64_leave (code);
if (MONO_TRAMPOLINE_TYPE_MUST_RETURN (tramp_type)) {
/* Load result */
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RSP, rax_offset - 0x8, 8);
+ amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RSP, rax_offset - sizeof(mgreg_t), sizeof(mgreg_t));
amd64_ret (code);
} else {
/* call the compiled method using the saved rax */
- amd64_jump_membase (code, AMD64_RSP, rax_offset - 0x8);
+ amd64_jump_membase (code, AMD64_RSP, rax_offset - sizeof(mgreg_t));
}
- g_assert ((code - buf) <= 538);
+ g_assert ((code - buf) <= kMaxCodeSize);
- mono_arch_flush_icache (buf, code - buf);
+ nacl_global_codeman_validate (&buf, kMaxCodeSize, &code);
- *code_size = code - buf;
+ mono_arch_flush_icache (buf, code - buf);
if (tramp_type == MONO_TRAMPOLINE_CLASS_INIT) {
- guint32 code_len;
-
/* Initialize the nullified class init trampoline used in the AOT case */
- nullified_class_init_trampoline = mono_arch_get_nullified_class_init_trampoline (&code_len);
+ nullified_class_init_trampoline = mono_arch_get_nullified_class_init_trampoline (NULL);
}
- *out_unwind_ops = unwind_ops;
-
+ if (info)
+ *info = mono_tramp_info_create (mono_get_generic_trampoline_name (tramp_type), buf, code - buf, ji, unwind_ops);
+
return buf;
}
gpointer
-mono_arch_get_nullified_class_init_trampoline (guint32 *code_len)
+mono_arch_get_nullified_class_init_trampoline (MonoTrampInfo **info)
{
guint8 *code, *buf;
code = buf = mono_global_codeman_reserve (16);
amd64_ret (code);
+ nacl_global_codeman_validate(&buf, 16, &code);
+
mono_arch_flush_icache (buf, code - buf);
- *code_len = code - buf;
+ if (info)
+ *info = mono_tramp_info_create (g_strdup_printf ("nullified_class_init_trampoline"), buf, code - buf, NULL, NULL);
+
+ if (mono_jit_map_is_enabled ())
+ mono_emit_jit_tramp (buf, code - buf, "nullified_class_init_trampoline");
return buf;
}
{
guint8 *code, *buf, *tramp;
int size;
+ gboolean far_addr = FALSE;
tramp = mono_get_trampoline_code (tramp_type);
+#if defined(__default_codegen__)
if ((((guint64)arg1) >> 32) == 0)
size = 5 + 1 + 4;
else
code = buf = mono_domain_code_reserve_align (domain, size, 1);
- amd64_call_code (code, tramp);
+ if (((gint64)tramp - (gint64)code) >> 31 != 0 && ((gint64)tramp - (gint64)code) >> 31 != -1) {
+#ifndef MONO_ARCH_NOMAP32BIT
+ g_assert_not_reached ();
+#endif
+ far_addr = TRUE;
+ size += 16;
+ code = buf = mono_domain_code_reserve_align (domain, size, 1);
+ }
+#elif defined(__native_client_codegen__)
+ size = 5 + 1 + 4;
+ /* Aligning the call site below could */
+ /* add up to kNaClAlignment-1 bytes */
+ size += (kNaClAlignment-1);
+ buf = mono_domain_code_reserve_align (domain, size, kNaClAlignment);
+ code = buf;
+#endif
+
+ if (far_addr) {
+ amd64_mov_reg_imm (code, AMD64_R11, tramp);
+ amd64_call_reg (code, AMD64_R11);
+ } else {
+ amd64_call_code (code, tramp);
+ }
/* The trampoline code will obtain the argument from the instruction stream */
+#if defined(__default_codegen__)
if ((((guint64)arg1) >> 32) == 0) {
*code = 0x4;
*(guint32*)(code + 1) = (gint64)arg1;
*(guint64*)(code + 1) = (gint64)arg1;
code += 9;
}
+#elif defined(__native_client_codegen__)
+ /* For NaCl, all tramp args are 32-bit because they're pointers */
+ *code = 0x68; /* push imm32 */
+ *(guint32*)(code + 1) = (gint32)arg1;
+ code += 5;
+#endif
g_assert ((code - buf) <= size);
if (code_len)
*code_len = size;
+ nacl_domain_code_validate(domain, &buf, size, &code);
+
mono_arch_flush_icache (buf, size);
return buf;
}
gpointer
-mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot)
-{
- guint32 code_size;
- MonoJumpInfo *ji;
-
- return mono_arch_create_rgctx_lazy_fetch_trampoline_full (slot, &code_size, &ji, FALSE);
-}
-
-gpointer
-mono_arch_create_rgctx_lazy_fetch_trampoline_full (guint32 slot, guint32 *code_size, MonoJumpInfo **ji, gboolean aot)
+mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot, MonoTrampInfo **info, gboolean aot)
{
guint8 *tramp;
guint8 *code, *buf;
int depth, index;
int i;
gboolean mrgctx;
-
- *ji = NULL;
+ MonoJumpInfo *ji = NULL;
+ GSList *unwind_ops = NULL;
mrgctx = MONO_RGCTX_SLOT_IS_MRGCTX (slot);
index = MONO_RGCTX_SLOT_INDEX (slot);
if (mrgctx)
- index += sizeof (MonoMethodRuntimeGenericContext) / sizeof (gpointer);
+ index += MONO_SIZEOF_METHOD_RUNTIME_GENERIC_CONTEXT / sizeof (gpointer);
for (depth = 0; ; ++depth) {
int size = mono_class_rgctx_get_array_size (depth, mrgctx);
index -= size - 1;
}
- tramp_size = 64 + 8 * depth;
+ tramp_size = NACL_SIZE (64 + 8 * depth, 128 + 8 * depth);
code = buf = mono_global_codeman_reserve (tramp_size);
+ unwind_ops = mono_arch_get_cie_program ();
+
rgctx_null_jumps = g_malloc (sizeof (guint8*) * (depth + 2));
if (mrgctx) {
amd64_mov_reg_reg (code, AMD64_RAX, AMD64_ARG_REG1, 8);
} else {
/* load rgctx ptr from vtable */
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_ARG_REG1, G_STRUCT_OFFSET (MonoVTable, runtime_generic_context), 8);
+ amd64_mov_reg_membase (code, AMD64_RAX, AMD64_ARG_REG1, G_STRUCT_OFFSET (MonoVTable, runtime_generic_context), sizeof(gpointer));
/* is the rgctx ptr null? */
amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
/* if yes, jump to actual trampoline */
for (i = 0; i < depth; ++i) {
/* load ptr to next array */
if (mrgctx && i == 0)
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, sizeof (MonoMethodRuntimeGenericContext), 8);
+ amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, MONO_SIZEOF_METHOD_RUNTIME_GENERIC_CONTEXT, sizeof(gpointer));
else
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, 0, 8);
+ amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, 0, sizeof(gpointer));
/* is the ptr null? */
amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
/* if yes, jump to actual trampoline */
}
/* fetch slot */
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, sizeof (gpointer) * (index + 1), 8);
+ amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, sizeof (gpointer) * (index + 1), sizeof(gpointer));
/* is the slot null? */
amd64_test_reg_reg (code, AMD64_RAX, AMD64_RAX);
/* if yes, jump to actual trampoline */
amd64_ret (code);
for (i = mrgctx ? 1 : 0; i <= depth + 1; ++i)
- x86_patch (rgctx_null_jumps [i], code);
+ mono_amd64_patch (rgctx_null_jumps [i], code);
g_free (rgctx_null_jumps);
/* move the rgctx pointer to the VTABLE register */
- amd64_mov_reg_reg (code, MONO_ARCH_VTABLE_REG, AMD64_ARG_REG1, 8);
+ amd64_mov_reg_reg (code, MONO_ARCH_VTABLE_REG, AMD64_ARG_REG1, sizeof(gpointer));
if (aot) {
- *ji = mono_patch_info_list_prepend (*ji, code - buf, MONO_PATCH_INFO_JIT_ICALL_ADDR, g_strdup_printf ("specific_trampoline_lazy_fetch_%u", slot));
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
+ code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, g_strdup_printf ("specific_trampoline_lazy_fetch_%u", slot));
amd64_jump_reg (code, AMD64_R11);
} else {
tramp = mono_arch_create_specific_trampoline (GUINT_TO_POINTER (slot), MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
amd64_jump_code (code, tramp);
}
+ nacl_global_codeman_validate (&buf, tramp_size, &code);
mono_arch_flush_icache (buf, code - buf);
g_assert (code - buf <= tramp_size);
- *code_size = code - buf;
+ if (info)
+ *info = mono_tramp_info_create (mono_get_rgctx_fetch_trampoline_name (slot), buf, code - buf, ji, unwind_ops);
return buf;
}
gpointer
-mono_arch_create_generic_class_init_trampoline (void)
-{
- guint32 code_size;
- MonoJumpInfo *ji;
-
- return mono_arch_create_generic_class_init_trampoline_full (&code_size, &ji, FALSE);
-}
-
-gpointer
-mono_arch_create_generic_class_init_trampoline_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot)
+mono_arch_create_generic_class_init_trampoline (MonoTrampInfo **info, gboolean aot)
{
guint8 *tramp;
guint8 *code, *buf;
static guint8 bitmask;
guint8 *jump;
int tramp_size;
-
- *ji = NULL;
+ GSList *unwind_ops = NULL;
+ MonoJumpInfo *ji = NULL;
tramp_size = 64;
x86_patch (jump, code);
if (aot) {
- *ji = mono_patch_info_list_prepend (*ji, code - buf, MONO_PATCH_INFO_JIT_ICALL_ADDR, "specific_trampoline_generic_class_init");
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
+ code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "specific_trampoline_generic_class_init");
amd64_jump_reg (code, AMD64_R11);
} else {
tramp = mono_arch_create_specific_trampoline (NULL, MONO_TRAMPOLINE_GENERIC_CLASS_INIT, mono_get_root_domain (), NULL);
amd64_jump_code (code, tramp);
}
+ nacl_global_codeman_validate (&buf, tramp_size, &code);
+
mono_arch_flush_icache (buf, code - buf);
g_assert (code - buf <= tramp_size);
- *code_size = code - buf;
+ if (info)
+ *info = mono_tramp_info_create (g_strdup_printf ("generic_class_init_trampoline"), buf, code - buf, ji, unwind_ops);
return buf;
}
#ifdef MONO_ARCH_MONITOR_OBJECT_REG
gpointer
-mono_arch_create_monitor_enter_trampoline (void)
-{
- guint32 code_size;
- MonoJumpInfo *ji;
-
- return mono_arch_create_monitor_enter_trampoline_full (&code_size, &ji, FALSE);
-}
-
-gpointer
-mono_arch_create_monitor_enter_trampoline_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot)
+mono_arch_create_monitor_enter_trampoline (MonoTrampInfo **info, gboolean aot)
{
-
guint8 *tramp;
guint8 *code, *buf;
- guint8 *jump_obj_null, *jump_sync_null, *jump_cmpxchg_failed, *jump_other_owner, *jump_tid;
+ guint8 *jump_obj_null, *jump_sync_null, *jump_cmpxchg_failed, *jump_other_owner, *jump_tid, *jump_sync_thin_hash = NULL;
int tramp_size;
int owner_offset, nest_offset, dummy;
-
- *ji = NULL;
+ MonoJumpInfo *ji = NULL;
+ GSList *unwind_ops = NULL;
g_assert (MONO_ARCH_MONITOR_OBJECT_REG == AMD64_RDI);
code = buf = mono_global_codeman_reserve (tramp_size);
+ unwind_ops = mono_arch_get_cie_program ();
+
if (mono_thread_get_tls_offset () != -1) {
/* MonoObject* obj is in RDI */
/* is obj null? */
/* load obj->synchronization to RCX */
amd64_mov_reg_membase (code, AMD64_RCX, AMD64_RDI, G_STRUCT_OFFSET (MonoObject, synchronisation), 8);
+
+ if (mono_gc_is_moving ()) {
+ /*if bit zero is set it's a thin hash*/
+ /*FIXME use testb encoding*/
+ amd64_test_reg_imm (code, AMD64_RCX, 0x01);
+ jump_sync_thin_hash = code;
+ amd64_branch8 (code, X86_CC_NE, -1, 1);
+
+ /*clear bits used by the gc*/
+ amd64_alu_reg_imm (code, X86_AND, AMD64_RCX, ~0x3);
+ }
+
/* is synchronization null? */
amd64_test_reg_reg (code, AMD64_RCX, AMD64_RCX);
/* if yes, jump to actual trampoline */
jump_sync_null = code;
amd64_branch8 (code, X86_CC_Z, -1, 1);
- /* load MonoThread* into RDX */
+ /* load MonoInternalThread* into RDX */
code = mono_amd64_emit_tls_get (code, AMD64_RDX, mono_thread_get_tls_offset ());
/* load TID into RDX */
- amd64_mov_reg_membase (code, AMD64_RDX, AMD64_RDX, G_STRUCT_OFFSET (MonoThread, tid), 8);
+ amd64_mov_reg_membase (code, AMD64_RDX, AMD64_RDX, G_STRUCT_OFFSET (MonoInternalThread, tid), 8);
/* is synchronization->owner null? */
amd64_alu_membase_imm_size (code, X86_CMP, AMD64_RCX, owner_offset, 0, 8);
amd64_ret (code);
x86_patch (jump_obj_null, code);
+ if (jump_sync_thin_hash)
+ x86_patch (jump_sync_thin_hash, code);
x86_patch (jump_sync_null, code);
x86_patch (jump_cmpxchg_failed, code);
x86_patch (jump_other_owner, code);
#endif
if (aot) {
- *ji = mono_patch_info_list_prepend (*ji, code - buf, MONO_PATCH_INFO_JIT_ICALL_ADDR, "specific_trampoline_monitor_enter");
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
+ code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "specific_trampoline_monitor_enter");
amd64_jump_reg (code, AMD64_R11);
} else {
tramp = mono_arch_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_ENTER, mono_get_root_domain (), NULL);
amd64_jump_code (code, tramp);
}
+ nacl_global_codeman_validate (&buf, tramp_size, &code);
+
mono_arch_flush_icache (code, code - buf);
g_assert (code - buf <= tramp_size);
- *code_size = code - buf;
+ if (info)
+ *info = mono_tramp_info_create (g_strdup_printf ("monitor_enter_trampoline"), buf, code - buf, ji, unwind_ops);
return buf;
}
gpointer
-mono_arch_create_monitor_exit_trampoline (void)
-{
- guint32 code_size;
- MonoJumpInfo *ji;
-
- return mono_arch_create_monitor_exit_trampoline_full (&code_size, &ji, FALSE);
-}
-
-gpointer
-mono_arch_create_monitor_exit_trampoline_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot)
+mono_arch_create_monitor_exit_trampoline (MonoTrampInfo **info, gboolean aot)
{
guint8 *tramp;
guint8 *code, *buf;
- guint8 *jump_obj_null, *jump_have_waiters;
+ guint8 *jump_obj_null, *jump_have_waiters, *jump_sync_null, *jump_not_owned, *jump_sync_thin_hash = NULL;
guint8 *jump_next;
int tramp_size;
int owner_offset, nest_offset, entry_count_offset;
-
- *ji = NULL;
+ MonoJumpInfo *ji = NULL;
+ GSList *unwind_ops = NULL;
g_assert (MONO_ARCH_MONITOR_OBJECT_REG == AMD64_RDI);
nest_offset = MONO_THREADS_SYNC_MEMBER_OFFSET (nest_offset);
entry_count_offset = MONO_THREADS_SYNC_MEMBER_OFFSET (entry_count_offset);
- tramp_size = 94;
+ tramp_size = 112;
code = buf = mono_global_codeman_reserve (tramp_size);
+ unwind_ops = mono_arch_get_cie_program ();
+
if (mono_thread_get_tls_offset () != -1) {
/* MonoObject* obj is in RDI */
/* is obj null? */
/* load obj->synchronization to RCX */
amd64_mov_reg_membase (code, AMD64_RCX, AMD64_RDI, G_STRUCT_OFFSET (MonoObject, synchronisation), 8);
+
+ if (mono_gc_is_moving ()) {
+ /*if bit zero is set it's a thin hash*/
+ /*FIXME use testb encoding*/
+ amd64_test_reg_imm (code, AMD64_RCX, 0x01);
+ jump_sync_thin_hash = code;
+ amd64_branch8 (code, X86_CC_NE, -1, 1);
+
+ /*clear bits used by the gc*/
+ amd64_alu_reg_imm (code, X86_AND, AMD64_RCX, ~0x3);
+ }
+
/* is synchronization null? */
amd64_test_reg_reg (code, AMD64_RCX, AMD64_RCX);
- /* if not, jump to next case */
- jump_next = code;
- amd64_branch8 (code, X86_CC_NZ, -1, 1);
- /* if yes, just return */
- amd64_ret (code);
+ /* if yes, jump to actual trampoline */
+ jump_sync_null = code;
+ amd64_branch8 (code, X86_CC_Z, -1, 1);
/* next case: synchronization is not null */
- x86_patch (jump_next, code);
- /* load MonoThread* into RDX */
+ /* load MonoInternalThread* into RDX */
code = mono_amd64_emit_tls_get (code, AMD64_RDX, mono_thread_get_tls_offset ());
/* load TID into RDX */
- amd64_mov_reg_membase (code, AMD64_RDX, AMD64_RDX, G_STRUCT_OFFSET (MonoThread, tid), 8);
+ amd64_mov_reg_membase (code, AMD64_RDX, AMD64_RDX, G_STRUCT_OFFSET (MonoInternalThread, tid), 8);
/* is synchronization->owner == TID */
amd64_alu_membase_reg_size (code, X86_CMP, AMD64_RCX, owner_offset, AMD64_RDX, 8);
- /* if yes, jump to next case */
- jump_next = code;
- amd64_branch8 (code, X86_CC_Z, -1, 1);
- /* if not, just return */
- amd64_ret (code);
+ /* if no, jump to actual trampoline */
+ jump_not_owned = code;
+ amd64_branch8 (code, X86_CC_NZ, -1, 1);
/* next case: synchronization->owner == TID */
- x86_patch (jump_next, code);
/* is synchronization->nest == 1 */
amd64_alu_membase_imm_size (code, X86_CMP, AMD64_RCX, nest_offset, 1, 4);
/* if not, jump to next case */
x86_patch (jump_obj_null, code);
x86_patch (jump_have_waiters, code);
+ x86_patch (jump_not_owned, code);
+ x86_patch (jump_sync_null, code);
}
/* jump to the actual trampoline */
#endif
if (aot) {
- *ji = mono_patch_info_list_prepend (*ji, code - buf, MONO_PATCH_INFO_JIT_ICALL_ADDR, "specific_trampoline_monitor_exit");
- amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
+ code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "specific_trampoline_monitor_exit");
amd64_jump_reg (code, AMD64_R11);
} else {
tramp = mono_arch_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_EXIT, mono_get_root_domain (), NULL);
amd64_jump_code (code, tramp);
}
+ nacl_global_codeman_validate (&buf, tramp_size, &code);
+
mono_arch_flush_icache (code, code - buf);
g_assert (code - buf <= tramp_size);
- *code_size = code - buf;
+ if (info)
+ *info = mono_tramp_info_create (g_strdup_printf ("monitor_exit_trampoline"), buf, code - buf, ji, unwind_ops);
return buf;
}
x86_push_imm (code, (guint64)func_arg);
amd64_call_reg (code, AMD64_R11);
}
+
+
+static void
+handler_block_trampoline_helper (gpointer *ptr)
+{
+ MonoJitTlsData *jit_tls = mono_native_tls_get_value (mono_jit_tls_id);
+ *ptr = jit_tls->handler_block_return_address;
+}
+
+gpointer
+mono_arch_create_handler_block_trampoline (void)
+{
+ guint8 *tramp = mono_get_trampoline_code (MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD);
+ guint8 *code, *buf;
+ int tramp_size = 64;
+ code = buf = mono_global_codeman_reserve (tramp_size);
+
+ /*
+ This trampoline restore the call chain of the handler block then jumps into the code that deals with it.
+ */
+
+ if (mono_get_jit_tls_offset () != -1) {
+ code = mono_amd64_emit_tls_get (code, AMD64_RDI, mono_get_jit_tls_offset ());
+ amd64_mov_reg_membase (code, AMD64_RDI, AMD64_RDI, G_STRUCT_OFFSET (MonoJitTlsData, handler_block_return_address), 8);
+ /* Simulate a call */
+ amd64_push_reg (code, AMD64_RAX);
+ amd64_jump_code (code, tramp);
+ } else {
+ /*Slow path uses a c helper*/
+ amd64_mov_reg_reg (code, AMD64_RDI, AMD64_RSP, 8);
+ amd64_mov_reg_imm (code, AMD64_RAX, tramp);
+ amd64_push_reg (code, AMD64_RAX);
+ amd64_jump_code (code, handler_block_trampoline_helper);
+ }
+
+ mono_arch_flush_icache (buf, code - buf);
+ g_assert (code - buf <= tramp_size);
+
+ if (mono_jit_map_is_enabled ())
+ mono_emit_jit_tramp (buf, code - buf, "handler_block_trampoline");
+
+ return buf;
+}
+
+/*
+ * mono_arch_get_call_target:
+ *
+ * Return the address called by the code before CODE if exists.
+ */
+guint8*
+mono_arch_get_call_target (guint8 *code)
+{
+ if (code [-5] == 0xe8) {
+ guint32 disp = *(guint32*)(code - 4);
+ guint8 *target = code + disp;
+
+ return target;
+ } else {
+ return NULL;
+ }
+}
+
+/*
+ * mono_arch_get_plt_info_offset:
+ *
+ * Return the PLT info offset belonging to the plt entry PLT_ENTRY.
+ */
+guint32
+mono_arch_get_plt_info_offset (guint8 *plt_entry, mgreg_t *regs, guint8 *code)
+{
+#if defined(__native_client__) || defined(__native_client_codegen__)
+ /* 18 = 3 (mov opcode) + 4 (disp) + 10 (nacljmp) + 1 (push opcode) */
+ /* See aot-compiler.c arch_emit_plt_entry for details. */
+ return *(guint32*)(plt_entry + 18);
+#else
+ return *(guint32*)(plt_entry + 6);
+#endif
+}
projects / mono.git / blobdiff