/* D e f i n e s */
/*------------------------------------------------------------------*/
-#define GR_SAVE_SIZE 4*sizeof(long)
-#define FP_SAVE_SIZE 16*sizeof(double)
-#define METHOD_SAVE_OFFSET S390_MINIMAL_STACK_SIZE
-#define CREATE_GR_OFFSET METHOD_SAVE_OFFSET+8
-#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)
+#define LMFReg s390_r13
-/*------------------------------------------------------------------*/
-/* Method-specific trampoline code fragment sizes */
-/*------------------------------------------------------------------*/
+/*
+ * Method-specific trampoline code fragment sizes
+ */
#define SPECIFIC_TRAMPOLINE_SIZE 96
/*========================= End of Defines =========================*/
/* T y p e d e f s */
/*------------------------------------------------------------------*/
+typedef struct {
+ guint8 stk[S390_MINIMAL_STACK_SIZE]; /* Standard s390x stack */
+ struct MonoLMF LMF; /* LMF */
+} trampStack_t;
+
/*========================= End of Typedefs ========================*/
/*------------------------------------------------------------------*/
{
char *tramp_name;
guint8 *buf, *tramp, *code;
- int i, offset, lmfOffset, has_caller;
+ int i, offset, has_caller;
GSList *unwind_ops = NULL;
MonoJumpInfo *ji = NULL;
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_aghi (buf, STK_BASE, -sizeof(trampStack_t));
s390_stg (buf, s390_r11, 0, STK_BASE, 0);
- s390_stg (buf, s390_r1, 0, STK_BASE, METHOD_SAVE_OFFSET);
- s390_stmg (buf, s390_r2, s390_r5, STK_BASE, CREATE_GR_OFFSET);
- /* Save the FP registers */
- offset = CREATE_FP_OFFSET;
+ /*---------------------------------------------------------------*/
+ /* we build the MonoLMF structure on the stack - see mini-s390.h */
+ /* Keep in sync with the code in mono_arch_emit_prolog */
+ /*---------------------------------------------------------------*/
+
+ s390_lgr (buf, LMFReg, STK_BASE);
+ s390_aghi (buf, LMFReg, G_STRUCT_OFFSET(trampStack_t, LMF));
+
+ /*---------------------------------------------------------------*/
+ /* Save general and floating point registers in LMF */
+ /*---------------------------------------------------------------*/
+ s390_stmg (buf, s390_r0, s390_r1, LMFReg, G_STRUCT_OFFSET(MonoLMF, gregs[0]));
+ s390_stmg (buf, s390_r2, s390_r5, LMFReg, G_STRUCT_OFFSET(MonoLMF, gregs[2]));
+ s390_mvc (buf, 10*sizeof(gulong), LMFReg, G_STRUCT_OFFSET(MonoLMF, gregs[6]),
+ s390_r11, S390_REG_SAVE_OFFSET);
+
+ offset = G_STRUCT_OFFSET(MonoLMF, fregs[0]);
for (i = s390_f0; i <= s390_f15; ++i) {
- s390_std (buf, i, 0, STK_BASE, offset);
- offset += 8;
+ s390_std (buf, i, 0, LMFReg, offset);
+ offset += sizeof(gdouble);
}
/*----------------------------------------------------------
S390_SET (buf, s390_r1, mono_get_lmf_addr);
s390_basr (buf, s390_r14, s390_r1);
-
- /*---------------------------------------------------------------*/
- /* we build the MonoLMF structure on the stack - see mini-s390.h */
- /* Keep in sync with the code in mono_arch_emit_prolog */
- /*---------------------------------------------------------------*/
- lmfOffset = CREATE_STACK_SIZE - sizeof(MonoLMF);
-
- s390_lgr (buf, s390_r13, STK_BASE);
- s390_aghi (buf, s390_r13, lmfOffset);
/*---------------------------------------------------------------*/
/* Set lmf.lmf_addr = jit_tls->lmf */
/*---------------------------------------------------------------*/
- s390_stg (buf, s390_r2, 0, s390_r13,
+ s390_stg (buf, s390_r2, 0, LMFReg,
G_STRUCT_OFFSET(MonoLMF, lmf_addr));
/*---------------------------------------------------------------*/
/*---------------------------------------------------------------*/
/* Set our lmf as the current lmf */
/*---------------------------------------------------------------*/
- s390_stg (buf, s390_r13, 0, s390_r2, 0);
+ s390_stg (buf, LMFReg, 0, s390_r2, 0);
/*---------------------------------------------------------------*/
/* Have our lmf.previous_lmf point to the last lmf */
/*---------------------------------------------------------------*/
- s390_stg (buf, s390_r0, 0, s390_r13,
+ s390_stg (buf, s390_r0, 0, LMFReg,
G_STRUCT_OFFSET(MonoLMF, previous_lmf));
/*---------------------------------------------------------------*/
/* save method info */
/*---------------------------------------------------------------*/
- s390_lg (buf, s390_r1, 0, STK_BASE, METHOD_SAVE_OFFSET);
- s390_stg (buf, s390_r1, 0, s390_r13,
- G_STRUCT_OFFSET(MonoLMF, method));
+ s390_lg (buf, s390_r1, 0, LMFReg, G_STRUCT_OFFSET(MonoLMF, gregs[1]));
+ s390_stg (buf, s390_r1, 0, LMFReg, G_STRUCT_OFFSET(MonoLMF, method));
/*---------------------------------------------------------------*/
/* save the current SP */
/*---------------------------------------------------------------*/
s390_lg (buf, s390_r1, 0, STK_BASE, 0);
- s390_stg (buf, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
+ s390_stg (buf, s390_r1, 0, LMFReg, G_STRUCT_OFFSET(MonoLMF, ebp));
/*---------------------------------------------------------------*/
/* save the current IP */
} else {
s390_lghi (buf, s390_r1, 0);
}
- s390_stg (buf, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
+ s390_stg (buf, s390_r1, 0, LMFReg, G_STRUCT_OFFSET(MonoLMF, eip));
- /*---------------------------------------------------------------*/
- /* Save general and floating point registers */
- /*---------------------------------------------------------------*/
- 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: mgreg_t *regs. We pass sp instead */
- s390_la (buf, s390_r2, 0, STK_BASE, CREATE_STACK_SIZE);
+ /* Arg 1: mgreg_t *regs */
+ s390_la (buf, s390_r2, 0, LMFReg, G_STRUCT_OFFSET(MonoLMF, gregs[0]));
/* Arg 2: code (next address to the instruction that called us) */
if (has_caller) {
/* Arg 3: Trampoline argument */
if (tramp_type == MONO_TRAMPOLINE_GENERIC_CLASS_INIT)
- s390_lg (buf, s390_r4, 0, STK_BASE, GENERIC_REG_OFFSET);
+ s390_lg (buf, s390_r4, 0, LMFReg,
+ G_STRUCT_OFFSET(MonoLMF, gregs[MONO_ARCH_VTABLE_REG]));
else
- s390_lg (buf, s390_r4, 0, STK_BASE, METHOD_SAVE_OFFSET);
+ s390_lg (buf, s390_r4, 0, LMFReg, G_STRUCT_OFFSET(MonoLMF, gregs[1]));
/* Arg 4: trampoline address. */
S390_SET (buf, s390_r5, buf);
/*----------------------------------------------------------
STEP 3: Restore the LMF
----------------------------------------------------------*/
- restoreLMF(buf, STK_BASE, CREATE_STACK_SIZE);
+ restoreLMF(buf, STK_BASE, sizeof(trampStack_t));
/*----------------------------------------------------------
STEP 4: call the compiled method
----------------------------------------------------------*/
- /* Restore registers */
-
- s390_lmg (buf, s390_r2, s390_r5, STK_BASE, CREATE_GR_OFFSET);
+ /* Restore parameter registers */
+ s390_lmg (buf, s390_r2, s390_r5, LMFReg, G_STRUCT_OFFSET(MonoLMF, gregs[2]));
/* Restore the FP registers */
- offset = CREATE_FP_OFFSET;
+ offset = G_STRUCT_OFFSET(MonoLMF, fregs[0]);
for (i = s390_f0; i <= s390_f15; ++i) {
- s390_ld (buf, i, 0, STK_BASE, offset);
- offset += 8;
+ s390_ld (buf, i, 0, LMFReg, offset);
+ offset += sizeof(gdouble);
}
/* Restore stack pointer and jump to the code -
- R14 contains the return address to our caller */
+ * R14 contains the return address to our caller
+ */
s390_lgr (buf, STK_BASE, s390_r11);
s390_lmg (buf, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
case MONO_TRAMPOLINE_MONITOR_EXIT:
s390_lgr (buf, s390_r1, s390_r2);
break;
+ /*
+ * Generic class trampoline arg is in r2
+ */
+ case MONO_TRAMPOLINE_GENERIC_CLASS_INIT:
+ s390_lgr (buf, s390_r1, s390_r2);
+ break;
default :
S390_SET (buf, s390_r1, arg1);
}
gpointer
mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot, MonoTrampInfo **info, gboolean aot)
{
-#ifdef MONO_ARCH_VTABLE_REG
guint8 *tramp;
guint8 *code, *buf;
guint8 **rgctx_null_jumps;
g_free (name);
return(buf);
-#else
- g_assert_not_reached ();
-#endif
- return(NULL);
}
/*========================= End of Function ========================*/
/*========================= 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;
- 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);
-
- *info = mono_tramp_info_create ("generic_class_init_trampoline", buf, code - buf, ji, unwind_ops);
-
- return(buf);
-}
-
-/*========================= End of Function ========================*/
-
#ifdef MONO_ARCH_MONITOR_OBJECT_REG
/*------------------------------------------------------------------*/
/* */