of an instruction. Shrug. */
#define ADDR_BITS_REMOVE(addr) ((addr) & ~3)
-#define ADDR_BITS_SET(addr) (((addr) | 0x00000002) - 4)
/* Immediately after a function call, return the saved pc.
Can't always go through the frames for this because on some machines
frame_find_saved_regs (frame_info, &frame_saved_regs)
\f
-/* There is not currently a functioning way to call functions in the
- inferior. */
+#define POP_FRAME pop_frame ()
+extern void pop_frame ();
-/* But if there was this is where we'd put the call dummy. */
-/* #define CALL_DUMMY_LOCATION AFTER_TEXT_END */
+/* Call function stuff contributed by Kevin Buettner of Motorola. */
+
+#define CALL_DUMMY_LOCATION AFTER_TEXT_END
+
+extern void m88k_push_dummy_frame();
+#define PUSH_DUMMY_FRAME m88k_push_dummy_frame()
+
+#define CALL_DUMMY { \
+0x67ff00c0, /* 0: subu #sp,#sp,0xc0 */ \
+0x243f0004, /* 4: st #r1,#sp,0x4 */ \
+0x245f0008, /* 8: st #r2,#sp,0x8 */ \
+0x247f000c, /* c: st #r3,#sp,0xc */ \
+0x249f0010, /* 10: st #r4,#sp,0x10 */ \
+0x24bf0014, /* 14: st #r5,#sp,0x14 */ \
+0x24df0018, /* 18: st #r6,#sp,0x18 */ \
+0x24ff001c, /* 1c: st #r7,#sp,0x1c */ \
+0x251f0020, /* 20: st #r8,#sp,0x20 */ \
+0x253f0024, /* 24: st #r9,#sp,0x24 */ \
+0x255f0028, /* 28: st #r10,#sp,0x28 */ \
+0x257f002c, /* 2c: st #r11,#sp,0x2c */ \
+0x259f0030, /* 30: st #r12,#sp,0x30 */ \
+0x25bf0034, /* 34: st #r13,#sp,0x34 */ \
+0x25df0038, /* 38: st #r14,#sp,0x38 */ \
+0x25ff003c, /* 3c: st #r15,#sp,0x3c */ \
+0x261f0040, /* 40: st #r16,#sp,0x40 */ \
+0x263f0044, /* 44: st #r17,#sp,0x44 */ \
+0x265f0048, /* 48: st #r18,#sp,0x48 */ \
+0x267f004c, /* 4c: st #r19,#sp,0x4c */ \
+0x269f0050, /* 50: st #r20,#sp,0x50 */ \
+0x26bf0054, /* 54: st #r21,#sp,0x54 */ \
+0x26df0058, /* 58: st #r22,#sp,0x58 */ \
+0x26ff005c, /* 5c: st #r23,#sp,0x5c */ \
+0x271f0060, /* 60: st #r24,#sp,0x60 */ \
+0x273f0064, /* 64: st #r25,#sp,0x64 */ \
+0x275f0068, /* 68: st #r26,#sp,0x68 */ \
+0x277f006c, /* 6c: st #r27,#sp,0x6c */ \
+0x279f0070, /* 70: st #r28,#sp,0x70 */ \
+0x27bf0074, /* 74: st #r29,#sp,0x74 */ \
+0x27df0078, /* 78: st #r30,#sp,0x78 */ \
+0x63df0000, /* 7c: addu #r30,#sp,0x0 */ \
+0x145f0000, /* 80: ld #r2,#sp,0x0 */ \
+0x147f0004, /* 84: ld #r3,#sp,0x4 */ \
+0x149f0008, /* 88: ld #r4,#sp,0x8 */ \
+0x14bf000c, /* 8c: ld #r5,#sp,0xc */ \
+0x14df0010, /* 90: ld #r6,#sp,0x10 */ \
+0x14ff0014, /* 94: ld #r7,#sp,0x14 */ \
+0x151f0018, /* 98: ld #r8,#sp,0x18 */ \
+0x153f001c, /* 9c: ld #r9,#sp,0x1c */ \
+0x5c200000, /* a0: or.u #r1,#r0,0x0 */ \
+0x58210000, /* a4: or #r1,#r1,0x0 */ \
+0xf400c801, /* a8: jsr #r1 */ \
+0xf000d1ff /* ac: tb0 0x0,#r0,0x1ff */ \
+}
-/* When popping a frame on the 88k (say when doing a return command), the
- calling function only expects to have the "preserved" registers restored.
- Thus, those are the only ones that we even try to restore here. */
+#define CALL_DUMMY_START_OFFSET 0x80
+#define CALL_DUMMY_LENGTH 0xb0
+
+/* FIXME: byteswapping. */
+#define FIX_CALL_DUMMY(dummy, pc, fun, nargs, args, type, gcc_p) \
+{ \
+ *(unsigned long *)((char *) (dummy) + 0xa0) |= \
+ (((unsigned long) (fun)) >> 16); \
+ *(unsigned long *)((char *) (dummy) + 0xa4) |= \
+ (((unsigned long) (fun)) & 0xffff); \
+ pc = text_end; \
+}
-#define POP_FRAME pop_frame ()
-extern void pop_frame ();
+#define STACK_ALIGN(addr) (((addr)+7) & -8)
+
+#define STORE_STRUCT_RETURN(addr, sp) \
+ write_register (SRA_REGNUM, (addr))
+
+#define NEED_TEXT_START_END 1
+
+/* According to the MC88100 RISC Microprocessor User's Manual, section
+ 6.4.3.1.2:
+
+ ... can be made to return to a particular instruction by placing a
+ valid instruction address in the SNIP and the next sequential
+ instruction address in the SFIP (with V bits set and E bits clear).
+ The rte resumes execution at the instruction pointed to by the
+ SNIP, then the SFIP.
+
+ The E bit is the least significant bit (bit 0). The V (valid) bit is
+ bit 1. This is why we logical or 2 into the values we are writing
+ below. It turns out that SXIP plays no role when returning from an
+ exception so nothing special has to be done with it. We could even
+ (presumably) give it a totally bogus value.
+
+ -- Kevin Buettner
+*/
+
+#define TARGET_WRITE_PC(val) { \
+ write_register(SXIP_REGNUM, (long) val); \
+ write_register(SNIP_REGNUM, (long) val | 2); \
+ write_register(SFIP_REGNUM, ((long) val | 2) + 4); \
+}
projects / binutils-gdb.git / commitdiff