Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- $Id: md-abi.c 7699 2007-04-13 10:42:05Z twisti $
-
*/
#include "config.h"
+
+#include <stdarg.h>
+
#include "vm/types.h"
#include "vm/jit/mips/md-abi.h"
+#include "mm/memory.h"
+
#include "vm/global.h"
#include "vm/jit/abi.h"
#include "vmcore/descriptor.h"
+#include "vmcore/method.h"
/* register descripton array **************************************************/
"t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra"
};
+const s4 abi_registers_integer_argument[] = {
+ 4, /* a0 */
+ 5, /* a1 */
+ 6, /* a2 */
+ 7, /* a3 */
+ 8, /* a4 */
+ 9, /* a5 */
+ 10, /* a6 */
+ 11, /* a7 */
+};
+
+const s4 abi_registers_integer_saved[] = {
+ 16, /* s0 */
+ 17, /* s1 */
+ 18, /* s2 */
+ 19, /* s3 */
+ 20, /* s4 */
+ 21, /* s5 */
+ 22, /* s6 */
+ 23, /* s7 */
+};
+
+const s4 abi_registers_integer_temporary[] = {
+ 12, /* t0 */
+ 13, /* t1 */
+ 14, /* t2 */
+ 15, /* t3 */
+ 24, /* t4 */
+};
+
s4 nregdescfloat[] = {
/* fv0, ftmp1, ftmp2, ftmp3, ft0, ft1, ft2, ft3, */
REG_END
};
+const s4 abi_registers_float_argument[] = {
+ 12, /* fa0 */
+ 13, /* fa1 */
+ 14, /* fa2 */
+ 15, /* fa3 */
+ 16, /* fa4 */
+ 17, /* fa5 */
+ 18, /* fa6 */
+ 19, /* fa7 */
+};
+
+const s4 abi_registers_float_saved[] = {
+ 24, /* fs0 */
+ 26, /* fs1 */
+ 28, /* fs2 */
+ 30, /* fs3 */
+};
+
+const s4 abi_registers_float_temporary[] = {
+ 4, /* ft0 */
+ 5, /* ft1 */
+ 6, /* ft2 */
+ 7, /* ft3 */
+ 8, /* ft4 */
+ 9, /* ft5 */
+ 10, /* ft6 */
+ 11, /* ft7 */
+ 20, /* ft8 */
+ 21, /* ft9 */
+ 22, /* ft10 */
+ 23, /* ft11 */
+ 25, /* ft12 */
+ 27, /* ft13 */
+ 29, /* ft14 */
+ 31, /* ft15 */
+};
+
#else /* SIZEOF_VOID_P == 8 */
/* MIPS32 */
"t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra"
};
+const s4 abi_registers_integer_argument[] = {
+ 4, /* a0 */
+ 5, /* a1 */
+ 6, /* a2 */
+ 7, /* a3 */
+};
+
+const s4 abi_registers_integer_saved[] = {
+ 16, /* s0 */
+ 17, /* s1 */
+ 18, /* s2 */
+ 19, /* s3 */
+ 20, /* s4 */
+ 21, /* s5 */
+ 22, /* s6 */
+ 23, /* s7 */
+};
+
+const s4 abi_registers_integer_temporary[] = {
+ 8, /* t0 */
+ 9, /* t1 */
+ 10, /* t2 */
+ 11, /* t3 */
+ 12, /* t4 */
+ 13, /* t5 */
+ 14, /* t6 */
+ 15, /* t7 */
+};
+
#if !defined(ENABLE_SOFT_FLOAT)
REG_END
};
+const s4 abi_registers_float_argument[] = {
+ 12, /* fa0 */
+ 14, /* fa1 */
+};
+
+const s4 abi_registers_float_saved[] = {
+ 20, /* fs0 */
+ 22, /* fs1 */
+ 24, /* fs2 */
+ 26, /* fs3 */
+ 28, /* fs4 */
+ 30, /* fs5 */
+};
+
+const s4 abi_registers_float_temporary[] = {
+ 8, /* ft0 */
+ 10, /* ft1 */
+ 16, /* ft2 */
+ 18, /* ft3 */
+};
+
+
#else /* !defined(ENABLE_SOFT_FLOAT) */
s4 nregdescfloat[] = {
s4 i;
s4 reguse;
s4 stacksize;
-#if SIZEOF_VOID_P == 4 && !defined(ENABLE_SOFT_FLOAT)
- s4 t;
- bool a0_is_float;
-#endif
/* set default values */
- reguse = 0;
- stacksize = 0;
-#if SIZEOF_VOID_P == 4 && !defined(ENABLE_SOFT_FLOAT)
- a0_is_float = false;
-#endif
+ reguse = 0;
+ stacksize = 0;
/* get params field of methoddesc */
pd = md->params;
- for (i = 0; i < md->paramcount; i++, pd++) {
#if SIZEOF_VOID_P == 8
+ for (i = 0; i < md->paramcount; i++, pd++) {
switch (md->paramtypes[i].type) {
case TYPE_INT:
case TYPE_ADR:
case TYPE_LNG:
- if (i < INT_ARG_CNT) {
+ if (reguse < INT_ARG_CNT) {
pd->inmemory = false;
- pd->regoff = reguse;
+ pd->regoff = abi_registers_integer_argument[reguse];
reguse++;
md->argintreguse = reguse;
}
else {
pd->inmemory = true;
- pd->regoff = stacksize;
+ pd->regoff = stacksize * 8;
stacksize++;
}
break;
+
case TYPE_FLT:
case TYPE_DBL:
- if (i < FLT_ARG_CNT) {
+ if (reguse < FLT_ARG_CNT) {
pd->inmemory = false;
- pd->regoff = reguse;
+ pd->regoff = abi_registers_float_argument[reguse];
reguse++;
md->argfltreguse = reguse;
}
else {
pd->inmemory = true;
- pd->regoff = stacksize;
+ pd->regoff = stacksize * 8;
stacksize++;
}
break;
/* register type is the same as java type */
pd->type = md->paramtypes[i].type;
+ }
#else /* SIZEOF_VOID_P == 8 */
-#if !defined(ENABLE_SOFT_FLOAT)
+# if !defined(ENABLE_SOFT_FLOAT)
+
+ /* Set stacksize to 2, as 4 32-bit argument registers can be
+ stored. */
+ /* XXX maybe this should be done in stack.c? */
+
+ stacksize = 2;
+
+ for (i = 0; i < md->paramcount; i++, pd++) {
+ switch (md->paramtypes[i].type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ if (reguse < INT_ARG_CNT) {
+ pd->inmemory = false;
+ pd->index = reguse;
+ pd->regoff = abi_registers_integer_argument[reguse];
+ reguse++;
+ md->argintreguse = reguse;
+ }
+ else {
+ pd->inmemory = true;
+ pd->index = stacksize;
+ pd->regoff = stacksize * 8;
+ stacksize++;
+ }
+ break;
+
+ case TYPE_LNG:
+ ALIGN_2(reguse);
+
+ if (reguse < INT_ARG_CNT) {
+ pd->inmemory = false;
+# if WORDS_BIGENDIAN == 1
+ pd->index = PACK_REGS(reguse + 1, reguse);
+ pd->regoff =
+ PACK_REGS(abi_registers_integer_argument[reguse + 1],
+ abi_registers_integer_argument[reguse]);
+# else
+ pd->index = PACK_REGS(reguse, reguse + 1);
+ pd->regoff =
+ PACK_REGS(abi_registers_integer_argument[reguse],
+ abi_registers_integer_argument[reguse + 1]);
+# endif
+ reguse += 2;
+ md->argintreguse = reguse;
+ }
+ else {
+ pd->inmemory = true;
+ pd->index = stacksize;
+ pd->regoff = stacksize * 8;
+ stacksize++;
+ }
+ break;
+
+ case TYPE_FLT:
+ case TYPE_DBL:
+ if (reguse < FLT_ARG_CNT) {
+ pd->inmemory = false;
+ pd->index = reguse;
+ pd->regoff = abi_registers_float_argument[reguse];
+ reguse++;
+ md->argfltreguse = reguse;
+ }
+ else {
+ pd->inmemory = true;
+ pd->index = stacksize;
+ pd->regoff = stacksize * 8;
+ stacksize++;
+ }
+ break;
+ }
+
+ /* register type is the same as java type */
+
+ pd->type = md->paramtypes[i].type;
+ }
+
+# else /* !defined(ENABLE_SOFT_FLOAT) */
+# error never actually tested!
+
+ for (i = 0; i < md->paramcount; i++, pd++) {
+ switch (md->paramtypes[i].type) {
+ case TYPE_INT:
+ case TYPE_ADR:
+ case TYPE_FLT:
+ pd->type = TYPE_INT;
+
+ if (reguse < INT_ARG_CNT) {
+ pd->inmemory = false;
+ pd->regoff = abi_registers_integer_argument[reguse];
+ reguse++;
+ md->argintreguse = reguse;
+ }
+ else {
+ pd->inmemory = true;
+ pd->regoff = stacksize * 8;
+ }
+ stacksize++;
+ break;
+
+ case TYPE_LNG:
+ case TYPE_DBL:
+ pd->type = TYPE_LNG;
-#define ALIGN_2_WORD(s) ((s) & 1) ? ++(s) : (s)
+ if (reguse < INT_ARG_CNT) {
+ pd->inmemory = false;
+# if WORDS_BIGENDIAN == 1
+ pd->regoff =
+ PACK_REGS(abi_registers_integer_argument[reguse + 1],
+ abi_registers_integer_argument[reguse]);
+# else
+ pd->regoff =
+ PACK_REGS(abi_registers_integer_argument[reguse],
+ abi_registers_integer_argument[reguse + 1]);
+# endif
+ reguse += 2;
+ md->argintreguse = reguse;
+ }
+ else {
+ pd->inmemory = true;
+ pd->regoff = stacksize * 8;
+ }
+ stacksize += 2;
+ break;
+ }
+ }
+
+# endif /* !defined(ENABLE_SOFT_FLOAT) */
+#endif /* SIZEOF_VOID_P == 8 */
+
+ /* fill register and stack usage */
+
+ md->memuse = stacksize;
+}
+
+
+/* md_param_alloc_native *******************************************************
+
+ Pre-allocate arguments according the native ABI.
+
+*******************************************************************************/
+
+void md_param_alloc_native(methoddesc *md)
+{
+#if SIZEOF_VOID_P == 8
+
+ /* On MIPS n64 we use the same ABI for JIT method calls as for
+ native method calls. */
+
+ md_param_alloc(md);
+#else /* SIZEOF_VOID_P == 8 */
+
+ paramdesc *pd;
+ s4 i;
+ s4 reguse;
+ s4 stacksize;
+# if !defined(ENABLE_SOFT_FLOAT)
+ s4 t;
+ bool a0_is_float;
+# endif
+
+ /* set default values */
+
+ reguse = 0;
+ stacksize = 0;
+# if !defined(ENABLE_SOFT_FLOAT)
+ a0_is_float = false;
+# endif
+
+ /* get params field of methoddesc */
+
+ pd = md->params;
+
+# if !defined(ENABLE_SOFT_FLOAT)
+
+ for (i = 0; i < md->paramcount; i++, pd++) {
t = md->paramtypes[i].type;
if (IS_FLT_DBL_TYPE(t) &&
((i == 0) ||
((i == 1) && IS_FLT_DBL_TYPE(md->paramtypes[0].type)))) {
if (IS_2_WORD_TYPE(t)) {
- pd->type = TYPE_DBL;
- pd->regoff = reguse;
+ pd->type = TYPE_DBL;
+ pd->regoff = abi_registers_float_argument[reguse];
reguse++;
stacksize += 2;
}
else {
- pd->type = TYPE_FLT;
- pd->regoff = reguse;
+ pd->type = TYPE_FLT;
+ pd->regoff = abi_registers_float_argument[reguse];
reguse++;
stacksize++;
}
}
else {
if (IS_2_WORD_TYPE(t)) {
- ALIGN_2_WORD(reguse);
+ ALIGN_2(reguse);
pd->type = TYPE_LNG;
if (reguse < INT_ARG_CNT) {
pd->inmemory = false;
-# if WORDS_BIGENDIAN == 1
- pd->regoff = PACK_REGS(reguse + 1, reguse);
-# else
- pd->regoff = PACK_REGS(reguse, reguse + 1);
-# endif
+# if WORDS_BIGENDIAN == 1
+ pd->regoff =
+ PACK_REGS(abi_registers_integer_argument[reguse + 1],
+ abi_registers_integer_argument[reguse]);
+# else
+ pd->regoff =
+ PACK_REGS(abi_registers_integer_argument[reguse],
+ abi_registers_integer_argument[reguse + 1]);
+# endif
reguse += 2;
md->argintreguse = reguse;
}
else {
+ ALIGN_2(stacksize);
+
pd->inmemory = true;
- pd->regoff = ALIGN_2_WORD(stacksize);
+ pd->regoff = stacksize * 4;
}
stacksize += 2;
}
if (reguse < INT_ARG_CNT) {
pd->inmemory = false;
- pd->regoff = reguse;
+ pd->regoff = abi_registers_integer_argument[reguse];
reguse++;
md->argintreguse = reguse;
}
else {
pd->inmemory = true;
- pd->regoff = stacksize;
+ pd->regoff = stacksize * 4;
}
stacksize++;
}
}
+ }
-#else /* !defined(ENABLE_SOFT_FLOAT) */
-#error never actually tested!
+# else /* !defined(ENABLE_SOFT_FLOAT) */
+# error never actually tested!
+ for (i = 0; i < md->paramcount; i++, pd++) {
switch (md->paramtypes[i].type) {
case TYPE_INT:
case TYPE_ADR:
if (i < INT_ARG_CNT) {
pd->inmemory = false;
- pd->regoff = reguse;
+ pd->regoff = abi_registers_integer_argument[reguse];
reguse++;
md->argintreguse = reguse;
}
else {
pd->inmemory = true;
- pd->regoff = stacksize;
+ pd->regoff = stacksize * 4;
}
stacksize++;
break;
if (i < INT_ARG_CNT) {
pd->inmemory = false;
-#if WORDS_BIGENDIAN == 1
- pd->regoff = PACK_REGS(reguse + 1, reguse);
-#else
- pd->regoff = PACK_REGS(reguse, reguse + 1);
-#endif
+# if WORDS_BIGENDIAN == 1
+ pd->regoff =
+ PACK_REGS(abi_registers_integer_argument[reguse + 1],
+ abi_registers_integer_argument[reguse]);
+# else
+ pd->regoff =
+ PACK_REGS(abi_registers_integer_argument[reguse],
+ abi_registers_integer_argument[reguse + 1]);
+# endif
reguse += 2;
md->argintreguse = reguse;
}
else {
pd->inmemory = true;
- pd->regoff = stacksize;
+ pd->regoff = stacksize * 4;
}
stacksize += 2;
break;
}
-
-
-#endif /* !defined(ENABLE_SOFT_FLOAT) */
-
-#endif /* SIZEOF_VOID_P == 8 */
}
+# endif /* !defined(ENABLE_SOFT_FLOAT) */
+
/* fill register and stack usage */
md->memuse = stacksize;
-}
-
-/* md_param_alloc_native *******************************************************
-
- Pre-allocate arguments according the native ABI.
-
-*******************************************************************************/
-
-void md_param_alloc_native(methoddesc *md)
-{
- /* On MIPS we use the same ABI for JIT method calls as for native
- method calls. */
-
- md_param_alloc(md);
+#endif /* SIZEOF_VOID_P == 8 */
}
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