-
-gpointer
-mono_arch_create_generic_class_init_trampoline (MonoTrampInfo **info, gboolean aot)
-{
- guint8 *tramp;
- guint8 *code, *buf;
- static int byte_offset = -1;
- static guint8 bitmask;
- guint8 *jump;
- int tramp_size;
- guint32 code_len;
- GSList *unwind_ops = NULL;
- MonoJumpInfo *ji = NULL;
-
- tramp_size = 64;
-
- code = buf = mono_global_codeman_reserve (tramp_size);
-
- if (byte_offset < 0)
- mono_marshal_find_bitfield_offset (MonoVTable, initialized, &byte_offset, &bitmask);
-
- /* if (!(vtable->initialized)) */
- mips_lbu (code, mips_at, MONO_ARCH_VTABLE_REG, byte_offset);
- g_assert (!(bitmask & 0xffff0000));
- mips_andi (code, mips_at, mips_at, bitmask);
- jump = code;
- mips_beq (code, mips_at, mips_zero, 0);
- mips_nop (code);
- /* Initialized case */
- mips_jr (code, mips_ra);
- mips_nop (code);
-
- /* Uninitialized case */
- mips_patch ((guint32*)jump, (guint32)code);
-
- if (aot) {
- ji = mono_patch_info_list_prepend (ji, code - buf, MONO_PATCH_INFO_JIT_ICALL_ADDR, "specific_trampoline_generic_class_init");
- mips_load (code, mips_at, 0);
- mips_jr (code, mips_at);
- mips_nop (code);
- } else {
- tramp = mono_arch_create_specific_trampoline (NULL, MONO_TRAMPOLINE_GENERIC_CLASS_INIT, mono_get_root_domain (), &code_len);
- mips_load (code, mips_at, tramp);
- mips_jr (code, mips_at);
- mips_nop (code);
- }
-
- mono_arch_flush_icache (buf, code - buf);
-
- g_assert (code - buf <= tramp_size);
-
- if (info)
- *info = mono_tramp_info_create ("generic_class_init_trampoline", buf, code - buf, ji, unwind_ops);
-
- return buf;
-}