#define NOT_IMPLEMENTED g_assert_not_reached ()
#define GP_SCRATCH_REG 31
+#define GP_SCRATCH_REG2 30
/*
* get_unbox_trampoline:
mono_arch_create_trampoline_code (MonoTrampolineType tramp_type)
{
guint8 *buf, *tramp;
- int i, lmf_offset, offset, tramp_offset, saved_regs_offset, saved_fpregs_offset, framesize;
- int l0, l1, l2, l3, l4, l5, l6, l7, o0, o1, o2, o3;
- gint64 disp;
+ int i, offset, saved_regs_offset, saved_fpregs_offset, framesize;
+ int in0, local0, out0, l0, l1, l2, l3, l4, l5, l6, l7, l8, o0, o1, o2, o3;
gboolean has_caller;
Ia64CodegenState code;
+ unw_dyn_info_t *di;
+ unw_dyn_region_info_t *r_pro;
if (tramp_type == MONO_TRAMPOLINE_JUMP)
has_caller = FALSE;
/* FIXME: Save/restore lmf */
/* Stacked Registers */
+ in0 = 32;
+ local0 = in0 + 8;
+ out0 = local0 + 16;
l0 = 40;
l1 = 41;
l2 = 42;
l5 = 45; /* saved ar.pfs */
l6 = 46; /* arg */
l7 = 47; /* code */
- o0 = 48; /* regs */
- o1 = 49; /* code */
- o2 = 50; /* arg */
- o3 = 51; /* tramp */
+ l8 = 48; /* saved sp */
+ o0 = out0 + 0; /* regs */
+ o1 = out0 + 1; /* code */
+ o2 = out0 + 2; /* arg */
+ o3 = out0 + 3; /* tramp */
framesize = (128 * 8) + 1024;
framesize = (framesize + (MONO_ARCH_FRAME_ALIGNMENT - 1)) & ~ (MONO_ARCH_FRAME_ALIGNMENT - 1);
/*
* Allocate a new register+memory stack frame.
* 8 input registers (the max used by the ABI)
- * 8 locals
+ * 16 locals
* 4 output (number of parameters passed to trampoline)
*/
- ia64_alloc (code, l5, 8, 8, 4, 0);
+ ia64_alloc (code, l5, local0 - in0, out0 - local0, 4, 0);
+ ia64_mov (code, l8, IA64_SP);
ia64_adds_imm (code, IA64_SP, (-framesize), IA64_SP);
offset = 16; /* scratch area */
/* Save the calling address */
ia64_mov_from_br (code, l7, IA64_B0);
+ /* Create unwind info for the prolog */
+ r_pro = g_malloc0 (_U_dyn_region_info_size (3));
+ r_pro->op_count = 3;
+ r_pro->insn_count = 16;
+ i = 0;
+ _U_dyn_op_save_reg (&r_pro->op[i++], _U_QP_TRUE, /* when=*/ 2,
+ /* reg=*/ UNW_IA64_AR_PFS, /* dst=*/ UNW_IA64_GR + local0 + 5);
+ _U_dyn_op_save_reg (&r_pro->op[i++], _U_QP_TRUE, /* when=*/ 5,
+ /* reg=*/ UNW_IA64_SP, /* dst=*/ UNW_IA64_GR + local0 + 8);
+ _U_dyn_op_save_reg (&r_pro->op[i++], _U_QP_TRUE, /* when=*/ 14,
+ /* reg=*/ UNW_IA64_RP, /* dst=*/ UNW_IA64_GR + local0 + 7);
+ g_assert ((unsigned) i <= r_pro->op_count);
+
/* Save registers */
saved_regs_offset = offset;
offset += 128 * 8;
/* FIXME: Handle NATs in fp regs / scratch regs */
- /* Load method address from function descriptor */
- ia64_ld8 (code, l0, IA64_R8);
- ia64_mov_to_br (code, IA64_B6, l0);
+ if (tramp_type != MONO_TRAMPOLINE_CLASS_INIT) {
+ /* Load method address from function descriptor */
+ ia64_ld8 (code, l0, IA64_R8);
+ ia64_mov_to_br (code, IA64_B6, l0);
+ }
/* Clean up register/memory stack frame */
ia64_adds_imm (code, IA64_SP, framesize, IA64_SP);
g_assert ((code.buf - buf) <= 2048);
+ /* FIXME: emit unwind info for epilog */
+ di = g_malloc0 (sizeof (unw_dyn_info_t));
+ di->start_ip = (unw_word_t) buf;
+ di->end_ip = (unw_word_t) code.buf;
+ di->gp = 0;
+ di->format = UNW_INFO_FORMAT_DYNAMIC;
+ di->u.pi.name_ptr = (unw_word_t)"ia64_generic_trampoline";
+ di->u.pi.regions = r_pro;
+
+ _U_dyn_register (di);
+
mono_arch_flush_icache (buf, code.buf - buf);
return buf;
#define TRAMPOLINE_SIZE 128
-static MonoJitInfo*
-create_specific_trampoline (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain)
+static gpointer
+create_specific_trampoline (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
{
- MonoJitInfo *ji;
guint8 *buf, *tramp;
gint64 disp;
Ia64CodegenState code;
ia64_begin_bundle (code);
disp = (tramp - code.buf) >> 4;
- ia64_br_cond (code, disp);
+ if (ia64_is_imm21 (disp)) {
+ ia64_br_cond (code, disp);
+ }
+ else {
+ ia64_movl (code, GP_SCRATCH_REG2, tramp);
+ ia64_mov_to_br (code, IA64_B6, GP_SCRATCH_REG2);
+ ia64_br_cond_reg (code, IA64_B6);
+ }
ia64_codegen_close (code);
mono_arch_flush_icache (buf, code.buf - buf);
- ji = g_new0 (MonoJitInfo, 1);
- ji->code_start = buf;
- ji->code_size = code.buf - buf;
+ if (code_len)
+ *code_len = code.buf - buf;
- return ji;
+ return buf;
}
MonoJitInfo*
mono_arch_create_jump_trampoline (MonoMethod *method)
{
- MonoJitInfo *ji = create_specific_trampoline (method, MONO_TRAMPOLINE_JUMP, mono_domain_get ());
+ MonoJitInfo *ji;
+ gpointer code;
+ guint32 code_size;
+ code = create_specific_trampoline (method, MONO_TRAMPOLINE_JUMP, mono_domain_get (), &code_size);
+
+ ji = g_new0 (MonoJitInfo, 1);
+ ji->code_start = code;
+ ji->code_size = code_size;
ji->method = method;
+
return ji;
}
gpointer
mono_arch_create_jit_trampoline (MonoMethod *method)
{
- MonoJitInfo *ji;
- gpointer code_start;
-
- ji = create_specific_trampoline (method, MONO_TRAMPOLINE_GENERIC, mono_domain_get ());
- code_start = ji->code_start;
- g_free (ji);
-
- return code_start;
+ return create_specific_trampoline (method, MONO_TRAMPOLINE_GENERIC, mono_domain_get (), NULL);
}
gpointer
mono_arch_create_jit_trampoline_from_token (MonoImage *image, guint32 token)
{
MonoDomain *domain = mono_domain_get ();
- MonoJitInfo *ji;
- gpointer code_start;
guint8 *buf, *start;
mono_domain_lock (domain);
buf += sizeof (gpointer);
*(guint32*)(gpointer)buf = token;
- ji = create_specific_trampoline (start, MONO_TRAMPOLINE_AOT, domain);
- code_start = ji->code_start;
- g_free (ji);
-
- return code_start;
+ return create_specific_trampoline (start, MONO_TRAMPOLINE_AOT, domain, NULL);
}
/**
gpointer
mono_arch_create_class_init_trampoline (MonoVTable *vtable)
{
- MonoJitInfo *ji;
- gpointer code;
-
- ji = create_specific_trampoline (vtable, MONO_TRAMPOLINE_CLASS_INIT, vtable->domain);
- code = ji->code_start;
- g_free (ji);
-
- return code;
+ return create_specific_trampoline (vtable, MONO_TRAMPOLINE_CLASS_INIT, vtable->domain, NULL);
}
void
projects / mono.git / blobdiff