#define CREATE_FP_OFFSET CREATE_GR_OFFSET+GR_SAVE_SIZE
#define CREATE_LMF_OFFSET CREATE_FP_OFFSET+FP_SAVE_SIZE
#define CREATE_STACK_SIZE (CREATE_LMF_OFFSET+2*sizeof(long)+sizeof(MonoLMF))
+#define GENERIC_REG_OFFSET CREATE_STACK_SIZE + \
+ S390_REG_SAVE_OFFSET + \
+ 3*sizeof(long)
/*------------------------------------------------------------------*/
/* Method-specific trampoline code fragment sizes */
s390_lg (buf, s390_r3, 0, s390_r11, S390_RET_ADDR_OFFSET);
}
- /* Arg 3: MonoMethod *method. It was put in r1 by the
- method-specific trampoline code, and then saved before the call
- to mono_get_lmf_addr()'. */
- s390_lg (buf, s390_r4, 0, STK_BASE, METHOD_SAVE_OFFSET);
+ /* Arg 3: Trampoline argument */
+ if (tramp_type == MONO_TRAMPOLINE_GENERIC_CLASS_INIT)
+ s390_lg (buf, s390_r4, 0, STK_BASE, GENERIC_REG_OFFSET);
+ else
+ s390_lg (buf, s390_r4, 0, STK_BASE, METHOD_SAVE_OFFSET);
/* Arg 4: trampoline address. Ignore for now */
s390_lgr (buf, STK_BASE, s390_r11);
s390_lmg (buf, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
- if (tramp_type == MONO_TRAMPOLINE_CLASS_INIT || tramp_type == MONO_TRAMPOLINE_GENERIC_CLASS_INIT)
- s390_br (buf, s390_r14);
- else
- s390_br (buf, s390_r1);
+ if (MONO_TRAMPOLINE_TYPE_MUST_RETURN(tramp_type)) {
+ s390_lgr (buf, s390_r2, s390_r1);
+ s390_br (buf, s390_r14);
+ } else {
+ s390_br (buf, s390_r1);
+ }
/* Flush instruction cache, since we've generated code */
mono_arch_flush_icache (code, buf - code);
s390_llong(buf, arg1);
s390_lg (buf, s390_r1, 0, s390_r1, 4);
displace = (tramp - buf) / 2;
- s390_jcl (buf, S390_CC_UN, displace);
+ s390_jg (buf, displace);
/* Flush instruction cache, since we've generated code */
mono_arch_flush_icache (code, buf - code);
gpointer
mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot, MonoTrampInfo **info, gboolean aot)
{
- /* FIXME: implement! */
+#ifdef MONO_ARCH_VTABLE_REG
+ guint8 *tramp;
+ guint8 *code, *buf;
+ guint8 **rgctx_null_jumps;
+ gint32 displace;
+ int tramp_size,
+ depth,
+ index,
+ iPatch = 0,
+ i;
+ gboolean mrgctx;
+ MonoJumpInfo *ji = NULL;
+ GSList *unwind_ops = NULL;
+
+ mrgctx = MONO_RGCTX_SLOT_IS_MRGCTX (slot);
+ index = MONO_RGCTX_SLOT_INDEX (slot);
+ if (mrgctx)
+ index += MONO_SIZEOF_METHOD_RUNTIME_GENERIC_CONTEXT / sizeof (gpointer);
+ for (depth = 0; ; ++depth) {
+ int size = mono_class_rgctx_get_array_size (depth, mrgctx);
+
+ if (index < size - 1)
+ break;
+ index -= size - 1;
+ }
+
+ tramp_size = 48 + 16 * depth;
+ if (mrgctx)
+ tramp_size += 4;
+ else
+ tramp_size += 12;
+
+ 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) {
+ /* get mrgctx ptr */
+ s390_lgr (code, s390_r1, s390_r2);
+ } else {
+ /* load rgctx ptr from vtable */
+ s390_lg (code, s390_r1, 0, s390_r2, G_STRUCT_OFFSET(MonoVTable, runtime_generic_context));
+ /* is the rgctx ptr null? */
+ s390_ltgr (code, s390_r1, s390_r1);
+ /* if yes, jump to actual trampoline */
+ rgctx_null_jumps [iPatch++] = code;
+ s390_jge (code, 0);
+ }
+
+ for (i = 0; i < depth; ++i) {
+ /* load ptr to next array */
+ if (mrgctx && i == 0)
+ s390_lg (code, s390_r1, 0, s390_r1, MONO_SIZEOF_METHOD_RUNTIME_GENERIC_CONTEXT);
+ else
+ s390_lg (code, s390_r1, 0, s390_r1, 0);
+ s390_ltgr (code, s390_r1, s390_r1);
+ /* if the ptr is null then jump to actual trampoline */
+ rgctx_null_jumps [iPatch++] = code;
+ s390_jge (code, 0);
+ }
+
+ /* fetch slot */
+ s390_lg (code, s390_r1, 0, s390_r1, (sizeof (gpointer) * (index + 1)));
+ /* is the slot null? */
+ s390_ltgr (code, s390_r1, s390_r1);
+ /* if yes, jump to actual trampoline */
+ rgctx_null_jumps [iPatch++] = code;
+ s390_jge (code, 0);
+ /* otherwise return r1 */
+ s390_lgr (code, s390_r2, s390_r1);
+ s390_br (code, s390_r14);
+
+ for (i = 0; i < iPatch; i++) {
+ displace = ((uintptr_t) code - (uintptr_t) rgctx_null_jumps[i]) / 2;
+ s390_patch_rel ((rgctx_null_jumps [i] + 2), displace);
+ }
+
+ g_free (rgctx_null_jumps);
+
+ /* move the rgctx pointer to the VTABLE register */
+ s390_lgr (code, MONO_ARCH_VTABLE_REG, s390_r2);
+
+ tramp = mono_arch_create_specific_trampoline (GUINT_TO_POINTER (slot),
+ MONO_TRAMPOLINE_RGCTX_LAZY_FETCH, mono_get_root_domain (), NULL);
+
+ /* jump to the actual trampoline */
+ displace = (tramp - code) / 2;
+ s390_jg (code, displace);
+
+ mono_arch_flush_icache (buf, code - buf);
+
+ g_assert (code - buf <= tramp_size);
+
+ if (info)
+ *info = mono_tramp_info_create (mono_get_rgctx_fetch_trampoline_name (slot), buf, code - buf, ji, unwind_ops);
+
+ return(buf);
+#else
g_assert_not_reached ();
- return NULL;
+#endif
+ return(NULL);
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - mono_arch_get_static_rgctx_trampoline */
+/* */
+/* Function - 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;
+ gint32 displace;
+ int buf_len;
+
+ MonoDomain *domain = mono_domain_get ();
+
+ buf_len = 32;
+
+ start = code = mono_domain_code_reserve (domain, buf_len);
+
+ s390_basr (code, s390_r1, 0);
+ s390_j (code, 6);
+ s390_llong(code, mrgctx);
+ s390_lg (code, MONO_ARCH_RGCTX_REG, 0, s390_r1, 4);
+ displace = ((uintptr_t) addr - (uintptr_t) code) / 2;
+ s390_jg (code, displace);
+ g_assert ((code - start) < buf_len);
+
+ mono_arch_flush_icache (start, code - start);
+
+ return(start);
}
/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - mono_arch_create_generic_class_init_trampoline */
+/* */
+/* Function - */
+/* */
+/*------------------------------------------------------------------*/
+
+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;
+ gint32 displace;
+ int tramp_size;
+ GSList *unwind_ops = NULL;
+ MonoJumpInfo *ji = NULL;
+
+ tramp_size = 48;
+
+ code = buf = mono_global_codeman_reserve (tramp_size);
+
+ unwind_ops = mono_arch_get_cie_program ();
+
+ if (byte_offset < 0)
+ mono_marshal_find_bitfield_offset (MonoVTable, initialized, &byte_offset, &bitmask);
+
+ s390_llgc(code, s390_r0, 0, MONO_ARCH_VTABLE_REG, byte_offset);
+ s390_nill(code, s390_r0, bitmask);
+ s390_bnzr(code, s390_r14);
+
+ tramp = mono_arch_create_specific_trampoline (NULL, MONO_TRAMPOLINE_GENERIC_CLASS_INIT,
+ mono_get_root_domain (), NULL);
+
+ /* jump to the actual trampoline */
+ displace = (tramp - code) / 2;
+ s390_jg (code, displace);
+
+ mono_arch_flush_icache (buf, code - buf);
+
+ g_assert (code - buf <= tramp_size);
+
+ if (info)
+ *info = mono_tramp_info_create (g_strdup_printf ("generic_class_init_trampoline"), buf, code - buf, ji, unwind_ops);
+
+ return(buf);
+}
+
+/*========================= End of Function ========================*/
projects / mono.git / blobdiff