/*------------------------------------------------------------------*/
/* */
-/* Name - mono_arch_get_unbox_trampoline */
+/* Name - mono_arch_get_unbox_trampoline */
/* */
/* Function - Return a pointer to a trampoline which does the */
/* unboxing before calling the method. */
/* When value type methods are called through the */
/* vtable we need to unbox the 'this' argument. */
/* */
-/* Parameters - gsctx - Generic sharing context */
-/* method - Methd pointer */
+/* Parameters - method - Methd pointer */
/* addr - Pointer to native code for method */
/* */
/*------------------------------------------------------------------*/
gpointer
-mono_arch_get_unbox_trampoline (MonoGenericSharingContext *gsctx, MonoMethod *method, gpointer addr)
+mono_arch_get_unbox_trampoline (MonoMethod *method, gpointer addr)
{
guint8 *code, *start;
int this_pos = s390_r2;
MonoDomain *domain = mono_domain_get ();
- start = addr;
- if (MONO_TYPE_ISSTRUCT (mono_method_signature (method)->ret))
- this_pos = s390_r3;
-
start = code = mono_domain_code_reserve (domain, 28);
s390_basr (code, s390_r1, 0);
/*------------------------------------------------------------------*/
/* */
-/* Name - mono_arch_patch_callsite */
+/* Name - mono_arch_patch_callsite */
/* */
-/* Function - Patch a non-virtual callsite so it calls @addr. */
+/* Function - Patch a non-virtual callsite so it calls @addr. */
/* */
/*------------------------------------------------------------------*/
/*========================= End of Function ========================*/
+/*------------------------------------------------------------------*/
+/* */
+/* Name - mono_arch_patch_plt_entry. */
+/* */
+/* Function - Patch a PLT entry - unused as yet. */
+/* */
+/*------------------------------------------------------------------*/
+
void
-mono_arch_patch_plt_entry (guint8 *code, guint8 *addr)
+mono_arch_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr)
{
g_assert_not_reached ();
}
/*------------------------------------------------------------------*/
/* */
-/* Name - mono_arch_nullify_class_init_trampoline */
+/* Name - mono_arch_nullify_class_init_trampoline */
/* */
-/* Function - Nullify a call which calls a class init trampoline */
+/* Function - Nullify a call which calls a class init trampoline*/
/* */
/*------------------------------------------------------------------*/
void
-mono_arch_nullify_class_init_trampoline (guint8 *code, gssize *regs)
+mono_arch_nullify_class_init_trampoline (guint8 *code, mgreg_t *regs)
{
char patch[2] = {0x07, 0x00};
/*========================= End of Function ========================*/
-void
-mono_arch_nullify_plt_entry (guint8 *code)
-{
- g_assert_not_reached ();
-}
-
-/*========================= End of Function ========================*/
-
/*------------------------------------------------------------------*/
/* */
-/* Name - mono_arch_get_vcall_slot */
-/* */
-/* Function - This method is called by the arch independent */
-/* trampoline code to determine the vtable slot used by */
-/* the call which invoked the trampoline. */
+/* Name - mono_arch_nullify_plt_entry */
/* */
-/* Parameters - code - Pointer into caller code */
-/* regs - Register state at the point of the call */
-/* displacement - Out parameter which will receive */
-/* the displacement of the vtable slot */
+/* Function - Nullify a PLT entry call. */
/* */
/*------------------------------------------------------------------*/
-gpointer
-mono_arch_get_vcall_slot (guint8 *code, gpointer *regs, int *displacement)
+void
+mono_arch_nullify_plt_entry (guint8 *code, mgreg_t *regs)
{
- int reg, lkReg;
- guchar* base;
- unsigned short opcode;
- char *sp;
-
- // We are passed sp instead of the register array
- sp = (char*)regs;
-
- *displacement = 0;
-
- opcode = *((unsigned short *) (code - 6));
- if (opcode == 0xc0e5)
- /* This is the 'brasl' instruction */
- return NULL;
-
- /*-----------------------------------*/
- /* This is a bras r14,Rz instruction */
- /* If it's preceded by a LG Rx,d(Ry) */
- /* If Rz == 1 then this is virtual */
- /* call. */
- /*-----------------------------------*/
- code -= 6;
-
- /*-----------------------------------*/
- /* If call is preceded by LGR then */
- /* there's nothing to patch */
- /*-----------------------------------*/
- if ((code[0] == 0xb9) &&
- (code[1] == 0x04))
- return NULL;
-
- /*-----------------------------------*/
- /* We back up until we're pointing at*/
- /* the base/displacement portion of */
- /* the LG instruction */
- /*-----------------------------------*/
- lkReg = code[5] & 0x0f;
-
- /*-----------------------------------*/
- /* The LG instruction has format: */
- /* E3x0ylllhh04 - where: */
- /* x = Rx; y = Ry; */
- /* lll = low 12 bits of displacement */
- /* hh = high 8 bits of displacement */
- /*-----------------------------------*/
- reg = code[0] >> 4;
- *displacement = (code[2] << 12) +
- ((code[0] & 0x0f) << 8) +
- code[1];
-
- if (reg > 5)
- base = *((guchar **) (sp + S390_REG_SAVE_OFFSET +
- sizeof(long)*(reg-6)));
- else
- base = *((guchar **) ((sp - CREATE_STACK_SIZE) +
- CREATE_GR_OFFSET +
- sizeof(long)*(reg-2)));
- if (lkReg != 1)
- /* Non virtual call */
- return NULL;
-
- return base;
+ g_assert_not_reached ();
}
/*========================= End of Function ========================*/
/*------------------------------------------------------------------*/
/* */
-/* Name - mono_arch_create_trampoline_code */
+/* Name - mono_arch_create_trampoline_code */
/* */
/* Function - Create the designated type of trampoline according*/
/* to the 'tramp_type' parameter. */
/* */
/*------------------------------------------------------------------*/
-guchar *
-mono_arch_create_trampoline_code (MonoTrampolineType tramp_type)
+guchar*
+mono_arch_create_generic_trampoline (MonoTrampolineType tramp_type, MonoTrampInfo **info, gboolean aot)
{
-
guint8 *buf, *tramp, *code;
int i, offset, lmfOffset;
+ g_assert (!aot);
+ if (info)
+ *info = NULL;
+
/* Now we'll create in 'buf' the S/390 trampoline code. This
is the trampoline code common to all methods */
stack size big enough to save our registers.
-----------------------------------------------------------*/
- s390_stmg (buf, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
+ s390_stmg (buf, s390_r6, s390_r15, STK_BASE, S390_REG_SAVE_OFFSET);
s390_lgr (buf, s390_r11, s390_r15);
s390_aghi (buf, STK_BASE, -CREATE_STACK_SIZE);
s390_stg (buf, s390_r11, 0, STK_BASE, 0);
/*---------------------------------------------------------------*/
/* Save general and floating point registers */
/*---------------------------------------------------------------*/
- s390_stmg (buf, s390_r2, s390_r12, s390_r13,
- G_STRUCT_OFFSET(MonoLMF, gregs[2]));
- for (i = 0; i < 16; i++) {
- s390_std (buf, i, 0, s390_r13,
- G_STRUCT_OFFSET(MonoLMF, fregs[i]));
- }
+ s390_mvc (buf, 4*sizeof(gulong), s390_r13, G_STRUCT_OFFSET(MonoLMF, gregs[2]),
+ STK_BASE, CREATE_GR_OFFSET);
+ s390_mvc (buf, 10*sizeof(gulong), s390_r13, G_STRUCT_OFFSET(MonoLMF, gregs[6]),
+ s390_r11, S390_REG_SAVE_OFFSET);
+
+ /* Simply copy fpregs already saved above */
+ s390_mvc (buf, 16*sizeof(double), s390_r13, G_STRUCT_OFFSET(MonoLMF, fregs[0]),
+ STK_BASE, CREATE_FP_OFFSET);
/*---------------------------------------------------------------*/
/* STEP 2: call the C trampoline function */
/* Set arguments */
- /* Arg 1: gssize *regs. We pass sp instead */
- s390_lgr (buf, s390_r2, STK_BASE);
- s390_ahi (buf, s390_r2, CREATE_STACK_SIZE);
+ /* Arg 1: mgreg_t *regs. We pass sp instead */
+ s390_la (buf, s390_r2, 0, STK_BASE, CREATE_STACK_SIZE);
/* Arg 2: code (next address to the instruction that called us) */
if (tramp_type == MONO_TRAMPOLINE_JUMP) {
/*------------------------------------------------------------------*/
/* */
-/* Name - mono_arch_create_specific_trampoline */
+/* Name - mono_arch_create_specific_trampoline */
/* */
-/* Function - Creates the given kind of specific trampoline */
+/* Function - Creates the given kind of specific trampoline */
/* */
/*------------------------------------------------------------------*/
/*========================= End of Function ========================*/
+/*------------------------------------------------------------------*/
+/* */
+/* Name - mono_arch_create_rgctx_lazy_fetch_trampoline */
+/* */
+/* Function - */
+/* */
+/*------------------------------------------------------------------*/
+
gpointer
-mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 encoded_offset)
+mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot, MonoTrampInfo **info, gboolean aot)
{
/* FIXME: implement! */
g_assert_not_reached ();
return NULL;
-}
+}
+
+/*========================= End of Function ========================*/
projects / mono.git / blobdiff