Thu Oct 24 23:06:40 1991 Fred Fish (fnf at cygnus.com)
+ * tm-3b1.h, tm-68k.h, tm-altos.h, tm-amix.h, tm-hp300bsd.h,
+ tm-hp300hpux.h, tm-isi.h, tm-news.h, tm-pn.h, tm-sun2.h,
+ tm-sun3.h: Remove locally duplicated code for calling functions
+ in the inferior. The only differences were in the specific trap
+ vectors used and whether or not an fpu was present. These are
+ now handled by appropriate definitions of BPT_VECTOR and
+ HAVE_68881 respectively. Other minor obvious cleanups.
+
+ * valops.c: Correct a minor misspelling.
+
* utils.c: Remove local BSD/USG hacks that are now in libiberty.
* dwarfread.c: Remove prototype for dwarfwarn. Does not work
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-#define BREAKPOINT { 0x4e, 0x41 }
+/* Define BPT_VECTOR if it is different than the default.
+ This is the vector number used by traps to indicate a breakpoint. */
+
+#define BPT_VECTOR 0x1
+
/* Define this if the C compiler puts an underscore at the front
of external names before giving them to the linker. */
#define STACK_END_ADDR 0x300000
-\f
-/* Things needed for making the inferior call functions. */
-
-/* Push an empty stack frame, to record the current PC, etc. */
-
-#define PUSH_DUMMY_FRAME \
-{ register CORE_ADDR sp = read_register (SP_REGNUM);\
- register int regnum; \
- sp = push_word (sp, read_register (PC_REGNUM)); \
- sp = push_word (sp, read_register (FP_REGNUM)); \
- write_register (FP_REGNUM, sp); \
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- sp = push_word (sp, read_register (regnum)); \
- sp = push_word (sp, read_register (PS_REGNUM)); \
- write_register (SP_REGNUM, sp); }
-
-/* Discard from the stack the innermost frame, restoring all registers. */
-
-#define POP_FRAME \
-{ register FRAME frame = get_current_frame (); \
- register CORE_ADDR fp; \
- register int regnum; \
- struct frame_saved_regs fsr; \
- struct frame_info *fi; \
- fi = get_frame_info (frame); \
- fp = fi->frame; \
- get_frame_saved_regs (fi, &fsr); \
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- if (fsr.regs[regnum]) \
- write_register (regnum, read_memory_integer (fsr.regs[regnum], 4)); \
- if (fsr.regs[PS_REGNUM]) \
- write_register (PS_REGNUM, read_memory_integer (fsr.regs[PS_REGNUM], 4)); \
- write_register (FP_REGNUM, read_memory_integer (fp, 4)); \
- write_register (PC_REGNUM, read_memory_integer (fp + 4, 4)); \
- write_register (SP_REGNUM, fp + 8); \
- flush_cached_frames (); \
- set_current_frame ( create_new_frame (read_register (FP_REGNUM),\
- read_pc ())); }
-
-/* This sequence of words is the instructions
- moveml 0xfffc,-(sp)
- clrw -(sp)
- movew ccr,-(sp)
- /..* The arguments are pushed at this point by GDB;
- no code is needed in the dummy for this.
- The CALL_DUMMY_START_OFFSET gives the position of
- the following jsr instruction. *../
- jsr @#32323232
- addl #69696969,sp
- bpt
- nop
-Note this is 24 bytes.
-We actually start executing at the jsr, since the pushing of the
-registers is done by PUSH_DUMMY_FRAME. If this were real code,
-the arguments for the function called by the jsr would be pushed
-between the moveml and the jsr, and we could allow it to execute through.
-But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is done,
-and we cannot allow the moveml to push the registers again lest they be
-taken for the arguments. */
-
-#define CALL_DUMMY {0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, 0x4e4f4e71}
-
-#define CALL_DUMMY_LENGTH 24
-
-#define CALL_DUMMY_START_OFFSET 8
-
-/* Insert the specified number of args and function address
- into a call sequence of the above form stored at DUMMYNAME. */
-
-#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, type) \
-{ *(int *)((char *) dummyname + 16) = nargs * 4; \
- *(int *)((char *) dummyname + 10) = fun; }
-\f
#include "tm-68k.h"
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-/* Generic 68000 stuff, to be included by other m-*.h files.
+/* Generic 68000 stuff, to be included by other tm-*.h files.
Define HAVE_68881 if that is the case. */
#if defined (HAVE_68881)
/* Sequence of bytes for breakpoint instruction.
This is a TRAP instruction. The last 4 bits (0xf below) is the
- vector. Systems which don't use 0xf should define BREAKPOINT
+ vector. Systems which don't use 0xf should define BPT_VECTOR
themselves before including this file. */
+#if !defined BPT_VECTOR
+#define BPT_VECTOR 0xf
+#endif
+
#if !defined (BREAKPOINT)
-#define BREAKPOINT {0x4e, 0x4f}
+#define BREAKPOINT {0x4e, (0x40 | BPT_VECTOR)}
#endif
/* If your kernel resets the pc after the trap happens you may need to
read_memory_integer ((thisframe)->frame, 4) :\
0)
+#if defined (FRAME_CHAIN_VALID_ALTERNATE)
+
+/* Use the alternate method of avoiding running up off the end of
+ the frame chain or following frames back into the startup code.
+ See the comments in blockframe.c */
+
+#define FRAME_CHAIN_VALID(chain, thisframe) \
+ (chain != 0 \
+ && !(inside_main_scope ((thisframe)->pc)) \
+ && !(inside_entry_scope ((thisframe)->pc)))
+
+#else
+
#define FRAME_CHAIN_VALID(chain, thisframe) \
(chain != 0 && outside_startup_file (FRAME_SAVED_PC (thisframe)))
+#endif /* FRAME_CHAIN_VALID_ALTERNATE */
+
#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain)
/* Define other aspects of the stack frame. */
for most configurations. The m68k family should be able to do this as
well. These macros can still be overridden when necessary. */
-/* The CALL_DUMMY macro is the sequence of instructions
- fmovem 0xff,-(sp)
- moveml 0xfffc,-(sp)
- clrw -(sp)
- movew ccr,-(sp)
- /..* The arguments are pushed at this point by GDB;
+/* The CALL_DUMMY macro is the sequence of instructions, as disassembled
+ by gdb itself:
+
+ fmovemx fp0-fp7,sp@- 0xf227 0xe0ff
+ moveml d0-a5,sp@- 0x48e7 0xfffc
+ clrw sp@- 0x4267
+ movew ccr,sp@- 0x42e7
+
+ /..* The arguments are pushed at this point by GDB;
no code is needed in the dummy for this.
The CALL_DUMMY_START_OFFSET gives the position of
the following jsr instruction. *../
- jsr @#32323232
- addl #69696969,sp
- bpt
- nop
-Note this is 28 bytes.
-We actually start executing at the jsr, since the pushing of the
-registers is done by PUSH_DUMMY_FRAME. If this were real code,
-the arguments for the function called by the jsr would be pushed
-between the moveml and the jsr, and we could allow it to execute through.
-But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is done,
-and we cannot allow the moveml to push the registers again lest they be
-taken for the arguments. */
-#define CALL_DUMMY {0xf227e0ff, 0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, 0x4e414e71}
+ jsr @#0x32323232 0x4eb9 0x3232 0x3232
+ addal #0x69696969,sp 0xdffc 0x6969 0x6969
+ trap #<your BPT_VECTOR number here> 0x4e4?
+ nop 0x4e71
+
+ Note this is CALL_DUMMY_LENGTH bytes (28 for the above example).
+ We actually start executing at the jsr, since the pushing of the
+ registers is done by PUSH_DUMMY_FRAME. If this were real code,
+ the arguments for the function called by the jsr would be pushed
+ between the moveml and the jsr, and we could allow it to execute through.
+ But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is
+ done, and we cannot allow the moveml to push the registers again lest
+ they be taken for the arguments. */
+
+#if defined (HAVE_68881)
+
+#define CALL_DUMMY {0xf227e0ff, 0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, (0x4e404e71 | (BPT_VECTOR << 16))}
+#define CALL_DUMMY_LENGTH 28 /* Size of CALL_DUMMY */
+#define CALL_DUMMY_START_OFFSET 12 /* Offset to jsr instruction*/
+
+#else
-#define CALL_DUMMY_LENGTH 28
+#define CALL_DUMMY {0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, (0x4e404e71 | (BPT_VECTOR << 16))}
+#define CALL_DUMMY_LENGTH 24 /* Size of CALL_DUMMY */
+#define CALL_DUMMY_START_OFFSET 8 /* Offset to jsr instruction*/
-#define CALL_DUMMY_START_OFFSET 12
+#endif /* HAVE_68881 */
/* Insert the specified number of args and function address
into a call sequence of the above form stored at DUMMYNAME. */
#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
-{ *(int *)((char *) dummyname + 20) = nargs * 4; \
- *(int *)((char *) dummyname + 14) = fun; }
+{ *(int *)((char *) dummyname + CALL_DUMMY_START_OFFSET + 2) = fun; \
+ *(int *)((char *) dummyname + CALL_DUMMY_START_OFFSET + 8) = nargs * 4; }
/* Push an empty stack frame, to record the current PC, etc. */
/* Discard from the stack the innermost frame, restoring all registers. */
-#define POP_FRAME { m68k_pop_frame (); }
+#define POP_FRAME { m68k_pop_frame (); }
-/* Note that stuff for calling inferior functions is not in this file
- because the call dummy is different for different breakpoint
- instructions, which are different on different systems. Perhaps
- they could be merged, but I haven't bothered. */
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-/* Sequence of bytes for breakpoint instruction. */
+/* Define BPT_VECTOR if it is different than the default.
+ This is the vector number used by traps to indicate a breakpoint. */
-#define BREAKPOINT {0x4e, 0x4e}
+#define BPT_VECTOR 0xe
/* Define this if the C compiler puts an underscore at the front
of external names before giving them to the linker. */
set_current_frame (create_new_frame (read_register (FP_REGNUM), \
read_pc ())); }
-/* This sequence of words is the instructions
- fmovem 0xff,-(sp)
- moveml 0xfffc,-(sp)
- clrw -(sp)
- movew ccr,-(sp)
- /..* The arguments are pushed at this point by GDB;
- no code is needed in the dummy for this.
- The CALL_DUMMY_START_OFFSET gives the position of
- the following jsr instruction. *../
- jsr @#32323232
- addl #69696969,sp
- bpt
- nop
-Note this is 28 bytes.
-We actually start executing at the jsr, since the pushing of the
-registers is done by PUSH_DUMMY_FRAME. If this were real code,
-the arguments for the function called by the jsr would be pushed
-between the moveml and the jsr, and we could allow it to execute through.
-But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is done,
-and we cannot allow the moveml to push the registers again lest they be
-taken for the arguments. */
-
-#define CALL_DUMMY {0xf227e0ff, 0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, 0x4e4e4e71}
-
-#define CALL_DUMMY_LENGTH 28
-
-#define CALL_DUMMY_START_OFFSET 12
-
-/* Insert the specified number of args and function address
- into a call sequence of the above form stored at DUMMYNAME. */
-
-#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
-{ *(int *)((char *) dummyname + 20) = nargs * 4; \
- *(int *)((char *) dummyname + 14) = fun; }
\f
#include "tm-68k.h"
/* All Amiga's (so far) running UNIX have come standard with the floating
point coprocessor. */
-#define HAVE_68881 /* Amiga has floating point coprocessor */
+#define HAVE_68881
-/* Sequence of bytes for breakpoint instruction.
- This is a TRAP instruction. The last 4 bits (0x1 below) is the
- vector. */
+/* Define BPT_VECTOR if it is different than the default.
+ This is the vector number used by traps to indicate a breakpoint. */
-#define BREAKPOINT {0x4e, 0x41 } /* Trap using vector 0x1 */
+#define BPT_VECTOR 0x1
/* How much to decrement the PC after a trap. Depends on kernel. */
#define DECR_PC_AFTER_BREAK 0 /* No decrement required */
-
-#include "tm-68k.h"
-#include "tm-svr4.h"
-
-/* Address of end of stack space. (actually one byte past it).
+/* Address of end of stack space. Actually one byte past it.
This value is typically very OS dependent.
FIXME: Check to see if SVR4 offers some machine independent way
of discovering this value and use it if so, and if we need it. */
/* #define STACK_END_ADDR 0xc0800000 */
-/* Use the alternate method of avoiding running up off the end of
- the frame chain or following frames back into the startup code.
- See the comments in blockframe.c */
-
-#undef FRAME_CHAIN_VALID
-#define FRAME_CHAIN_VALID(chain, thisframe) \
- (chain != 0 \
- && !(inside_main_scope ((thisframe)->pc)) \
- && !(inside_entry_scope ((thisframe)->pc)))
+/* Use the alternate method of determining valid frame chains. */
+#define FRAME_CHAIN_VALID_ALTERNATE
+
+#include "tm-svr4.h"
+#include "tm-68k.h"
* Problems to hpbsd-bugs@cs.utah.edu
*/
+#define HAVE_68881
+
+/* Define BPT_VECTOR if it is different than the default.
+ This is the vector number used by traps to indicate a breakpoint. */
+
+#define BPT_VECTOR 0x2
+
/* Define this if the C compiler puts an underscore at the front
of external names before giving them to the linker. */
#define STACK_END_ADDR 0xfff00000
-/* Sequence of bytes for breakpoint instruction. */
-
-#define BREAKPOINT {0x4e, 0x42}
-
-\f
-/* Things needed for making the inferior call functions. */
-
-/* Push an empty stack frame, to record the current PC, etc. */
-
-#define PUSH_DUMMY_FRAME \
-{ register CORE_ADDR sp = read_register (SP_REGNUM); \
- register int regnum; \
- char raw_buffer[12]; \
- sp = push_word (sp, read_register (PC_REGNUM)); \
- sp = push_word (sp, read_register (FP_REGNUM)); \
- write_register (FP_REGNUM, sp); \
- for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \
- { read_register_gen (regnum, raw_buffer); \
- sp = push_bytes (sp, raw_buffer, 12); } \
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- sp = push_word (sp, read_register (regnum)); \
- sp = push_word (sp, read_register (PS_REGNUM)); \
- write_register (SP_REGNUM, sp); }
-
-/* Discard from the stack the innermost frame,
- restoring all saved registers. */
-
-#define POP_FRAME \
-{ register FRAME frame = get_current_frame (); \
- register CORE_ADDR fp; \
- register int regnum; \
- struct frame_saved_regs fsr; \
- struct frame_info *fi; \
- char raw_buffer[12]; \
- fi = get_frame_info (frame); \
- fp = fi->frame; \
- get_frame_saved_regs (fi, &fsr); \
- for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \
- if (fsr.regs[regnum]) \
- { read_memory (fsr.regs[regnum], raw_buffer, 12); \
- write_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 12); }\
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- if (fsr.regs[regnum]) \
- write_register (regnum, read_memory_integer (fsr.regs[regnum], 4)); \
- if (fsr.regs[PS_REGNUM]) \
- write_register (PS_REGNUM, read_memory_integer (fsr.regs[PS_REGNUM], 4)); \
- write_register (FP_REGNUM, read_memory_integer (fp, 4)); \
- write_register (PC_REGNUM, read_memory_integer (fp + 4, 4)); \
- write_register (SP_REGNUM, fp + 8); \
- flush_cached_frames (); \
- set_current_frame (create_new_frame (read_register (FP_REGNUM),\
- read_pc ())); }
-
-/* This sequence of words is the instructions
- fmovem 0xff,-(sp)
- moveml 0xfffc,-(sp)
- clrw -(sp)
- movew ccr,-(sp)
- /..* The arguments are pushed at this point by GDB;
- no code is needed in the dummy for this.
- The CALL_DUMMY_START_OFFSET gives the position of
- the following jsr instruction. *../
- jsr @#32323232
- addl #69696969,sp
- trap #2
- nop
-Note this is 28 bytes.
-We actually start executing at the jsr, since the pushing of the
-registers is done by PUSH_DUMMY_FRAME. If this were real code,
-the arguments for the function called by the jsr would be pushed
-between the moveml and the jsr, and we could allow it to execute through.
-But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is done,
-and we cannot allow the moveml to push the registers again lest they be
-taken for the arguments. */
-
-#define CALL_DUMMY {0xf227e0ff, 0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, 0x4e424e71}
-
-#define CALL_DUMMY_LENGTH 28
-
-#define CALL_DUMMY_START_OFFSET 12
-
-/* Insert the specified number of args and function address
- into a call sequence of the above form stored at DUMMYNAME. */
-
-#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
-{ *(int *)((char *) dummyname + 20) = nargs * 4; \
- *(int *)((char *) dummyname + 14) = fun; }
-\f
-#define HAVE_68881
-
#include "tm-68k.h"
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-/* Sequence of bytes for breakpoint instruction. */
+#include HAVE_68881
+
+/* Define BPT_VECTOR if it is different than the default.
+ This is the vector number used by traps to indicate a breakpoint. */
-#define BREAKPOINT {0x4e, 0x41}
+#define BPT_VECTOR 0x1
/* Define this if the C compiler puts an underscore at the front
of external names before giving them to the linker. */
/* Address of end of stack space. */
#define STACK_END_ADDR 0xFFF00000
-\f
-/* Things needed for making the inferior call functions. */
-
-/* Push an empty stack frame, to record the current PC, etc. */
-
-#define PUSH_DUMMY_FRAME \
-{ register CORE_ADDR sp = read_register (SP_REGNUM); \
- register int regnum; \
- char raw_buffer[12]; \
- sp = push_word (sp, read_register (PC_REGNUM)); \
- sp = push_word (sp, read_register (FP_REGNUM)); \
- write_register (FP_REGNUM, sp); \
- for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \
- { read_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 12); \
- sp = push_bytes (sp, raw_buffer, 12); } \
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- sp = push_word (sp, read_register (regnum)); \
- sp = push_word (sp, read_register (PS_REGNUM)); \
- write_register (SP_REGNUM, sp); }
-
-/* Discard from the stack the innermost frame,
- restoring all saved registers. */
-
-#define POP_FRAME \
-{ register FRAME frame = get_current_frame (); \
- register CORE_ADDR fp; \
- register int regnum; \
- struct frame_saved_regs fsr; \
- struct frame_info *fi; \
- char raw_buffer[12]; \
- fi = get_frame_info (frame); \
- fp = fi->frame; \
- get_frame_saved_regs (fi, &fsr); \
- for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \
- if (fsr.regs[regnum]) \
- { read_memory (fsr.regs[regnum], raw_buffer, 12); \
- write_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 12); }\
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- if (fsr.regs[regnum]) \
- write_register (regnum, read_memory_integer (fsr.regs[regnum], 4)); \
- if (fsr.regs[PS_REGNUM]) \
- write_register (PS_REGNUM, read_memory_integer (fsr.regs[PS_REGNUM], 4)); \
- write_register (FP_REGNUM, read_memory_integer (fp, 4)); \
- write_register (PC_REGNUM, read_memory_integer (fp + 4, 4)); \
- write_register (SP_REGNUM, fp + 8); \
- flush_cached_frames (); \
- set_current_frame (create_new_frame (read_register (FP_REGNUM),\
- read_pc ()));}
-
-/* This sequence of words is the instructions
- fmovem 0xff,-(sp)
- moveml 0xfffc,-(sp)
- clrw -(sp)
- movew ccr,-(sp)
- /..* The arguments are pushed at this point by GDB;
- no code is needed in the dummy for this.
- The CALL_DUMMY_START_OFFSET gives the position of
- the following jsr instruction. *../
- jsr @#32323232
- addl #69696969,sp
- bpt
- nop
-Note this is 28 bytes.
-We actually start executing at the jsr, since the pushing of the
-registers is done by PUSH_DUMMY_FRAME. If this were real code,
-the arguments for the function called by the jsr would be pushed
-between the moveml and the jsr, and we could allow it to execute through.
-But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is done,
-and we cannot allow the moveml to push the registers again lest they be
-taken for the arguments. */
-
-#define CALL_DUMMY {0xf227e0ff, 0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, 0x4e414e71}
-
-#define CALL_DUMMY_LENGTH 28
-
-#define CALL_DUMMY_START_OFFSET 12
-
-/* Insert the specified number of args and function address
- into a call sequence of the above form stored at DUMMYNAME. */
-
-#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
-{ *(int *)((char *) dummyname + 20) = nargs * 4; \
- *(int *)((char *) dummyname + 14) = fun; }
-\f
-#include HAVE_68881
#include "tm-68k.h"
/* This has not been tested on ISI's running BSD 4.2, but it will probably
work. */
+#define HAVE_68881
+
/* Define this if the C compiler puts an underscore at the front
of external names before giving them to the linker. */
#define READ_DBX_FORMAT
-/*#define STACK_END_ADDR 0x10000000*/
+/* Address of end of stack space. */
+
#define STACK_END_ADDR 0xfffe000
/* Data segment starts at etext rounded up to DATAROUND in {N,Z}MAGIC files */
(frame_saved_regs).regs[FP_REGNUM] = (frame_info)->frame; \
(frame_saved_regs).regs[PC_REGNUM] = (frame_info)->frame + 4; \
}
-\f
-/* Things needed for making the inferior call functions. */
-
-/* Push an empty stack frame, to record the current PC, etc. */
-
-#define PUSH_DUMMY_FRAME \
-{ register CORE_ADDR sp = read_register (SP_REGNUM); \
- register int regnum; \
- char raw_buffer[12]; \
- sp = push_word (sp, read_register (PC_REGNUM)); \
- sp = push_word (sp, read_register (FP_REGNUM)); \
- write_register (FP_REGNUM, sp); \
- for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \
- { read_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 12); \
- sp = push_bytes (sp, raw_buffer, 12); } \
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- sp = push_word (sp, read_register (regnum)); \
- sp = push_word (sp, read_register (PS_REGNUM)); \
- write_register (SP_REGNUM, sp); }
-
-/* Discard from the stack the innermost frame, restoring all registers. */
-
-#define POP_FRAME \
-{ register FRAME frame = get_current_frame (); \
- register CORE_ADDR fp; \
- register int regnum; \
- struct frame_saved_regs fsr; \
- struct frame_info *fi; \
- char raw_buffer[12]; \
- fi = get_frame_info (frame); \
- fp = fi->frame; \
- get_frame_saved_regs (fi, &fsr); \
- for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \
- if (fsr.regs[regnum]) \
- { read_memory (fsr.regs[regnum], raw_buffer, 12); \
- write_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 12); }\
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- if (fsr.regs[regnum]) \
- write_register (regnum, read_memory_integer (fsr.regs[regnum], 4)); \
- if (fsr.regs[PS_REGNUM]) \
- write_register (PS_REGNUM, read_memory_integer (fsr.regs[PS_REGNUM], 4)); \
- write_register (FP_REGNUM, read_memory_integer (fp, 4)); \
- write_register (PC_REGNUM, read_memory_integer (fp + 4, 4)); \
- write_register (SP_REGNUM, fp + 8); \
- flush_cached_frames (); \
- set_current_frame ( create_new_frame (read_register (FP_REGNUM), \
- read_pc ())); }
-
-/* This sequence of words is the instructions
- fmovem #<f0-f7>,-(sp)
- moveml 0xfffc,-(sp)
- clrw -(sp)
- movew ccr,-(sp)
- /..* The arguments are pushed at this point by GDB;
- no code is needed in the dummy for this.
- The CALL_DUMMY_START_OFFSET gives the position of
- the following jsr instruction. *../
- jsr @#32323232
- addl #69696969,sp
- bpt
- nop
-Note this is 24 bytes.
-We actually start executing at the jsr, since the pushing of the
-registers is done by PUSH_DUMMY_FRAME. If this were real code,
-the arguments for the function called by the jsr would be pushed
-between the moveml and the jsr, and we could allow it to execute through.
-But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is done,
-and we cannot allow the moveml to push the registers again lest they be
-taken for the arguments. */
-
-#define CALL_DUMMY {0xf227e0ff, 0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, 0x4e4f4e71}
-
-#define CALL_DUMMY_LENGTH 28
-
-#define CALL_DUMMY_START_OFFSET 12
-
-/* Insert the specified number of args and function address
- into a call sequence of the above form stored at DUMMYNAME. */
-
-#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
-{ *(int *)((char *) dummyname + 20) = nargs * 4; \
- *(int *)((char *) dummyname + 14) = fun; }
-\f
-#define HAVE_68881 1
#include "tm-68k.h"
* After NEWS OS version 3.2, some of ptrace's bug is fixed.
But we cannot change the floating register(see adb(1) in OS 3.2) yet. */
+#define HAVE_68881
+
/* Define this if the C compiler puts an underscore at the front
of external names before giving them to the linker. */
val = read_memory_integer (pc + 2, 4); \
val >>= 2; }
-/* Things needed for making the inferior call functions. */
-#define PUSH_DUMMY_FRAME \
-{ register CORE_ADDR sp = read_register (SP_REGNUM); \
- register int regnum; \
- char raw_buffer[12]; \
- sp = push_word (sp, read_register (PC_REGNUM)); \
- sp = push_word (sp, read_register (FP_REGNUM)); \
- write_register (FP_REGNUM, sp); \
- for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \
- { read_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 12); \
- sp = push_bytes (sp, raw_buffer, 12); } \
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- sp = push_word (sp, read_register (regnum)); \
- sp = push_word (sp, read_register (PS_REGNUM)); \
- write_register (SP_REGNUM, sp); }
-
-/* Discard from the stack the innermost frame, restoring all registers. */
-
-#define POP_FRAME \
-{ register FRAME frame = get_current_frame (); \
- register CORE_ADDR fp; \
- register int regnum; \
- struct frame_saved_regs fsr; \
- struct frame_info *fi; \
- char raw_buffer[12]; \
- fi = get_frame_info (frame); \
- fp = fi->frame; \
- get_frame_saved_regs (fi, &fsr); \
- for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \
- if (fsr.regs[regnum]) \
- { read_memory (fsr.regs[regnum], raw_buffer, 12); \
- write_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 12); }\
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- if (fsr.regs[regnum]) \
- write_register (regnum, read_memory_integer (fsr.regs[regnum], 4)); \
- if (fsr.regs[PS_REGNUM]) \
- write_register (PS_REGNUM, read_memory_integer (fsr.regs[PS_REGNUM], 4)); \
- write_register (FP_REGNUM, read_memory_integer (fp, 4)); \
- write_register (PC_REGNUM, read_memory_integer (fp + 4, 4)); \
- write_register (SP_REGNUM, fp + 8); \
- flush_cached_frames (); \
- set_current_frame (create_new_frame (read_register (FP_REGNUM), \
- read_pc ())); }
-
-/* This sequence of words is the instructions
- fmove.m #<f0-f7>,-(sp)
- movem.l 0xfffc,-(sp) ;; no save a6(fp) and a7(sp)
- clr.w -(sp)
- move.w ccr,-(sp)
- /..* The arguments are pushed at this point by GDB;
- no code is needed in the dummy for this.
- The CALL_DUMMY_START_OFFSET gives the position of
- the following jsr instruction. *../
- jbsr (#32323232)
- add.l #69696969,sp
- bpt
- nop
-Note this is 24 bytes.
-We actually start executing at the jsr, since the pushing of the
-registers is done by PUSH_DUMMY_FRAME. If this were real code,
-the arguments for the function called by the jsr would be pushed
-between the moveml and the jsr, and we could allow it to execute through.
-But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is done,
-and we cannot allow the moveml to push the registers again lest they be
-taken for the arguments. */
-
-#define CALL_DUMMY {0xf227e0ff, 0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, 0x4e4f4e71}
-
-#define CALL_DUMMY_LENGTH 28
-
-#define CALL_DUMMY_START_OFFSET 12
-
-/* Insert the specified number of args and function address
- into a call sequence of the above form stored at DUMMYNAME. */
-
-#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
-{ *(int *)((char *) dummyname + 20) = nargs * 4; \
- *(int *)((char *) dummyname + 14) = fun; }
-\f
-#define HAVE_68881
-
#include "tm-68k.h"
Setup our stack frame, load argumemts, call and then restore registers.
*/
+/* FIXME: The below defines an m68k CALL_DUMMY, which looks nothing like what
+ is documented above. */
+
#define CALL_DUMMY {0xf227e0ff, 0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, 0x4e4f4e71}
#define CALL_DUMMY_LENGTH 28
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-#include "m-68k.h"
-
/* Define this if the C compiler puts an underscore at the front
of external names before giving them to the linker. */
/* Address of the end of stack space. We get this from the system
include files. */
+
#include <sys/types.h>
#include <machine/vmparam.h>
#define STACK_END_ADDR USRSTACK
-\f
-/* Things needed for making the inferior call functions. */
-
-/* Push an empty stack frame, to record the current PC, etc. */
-
-#define PUSH_DUMMY_FRAME \
-{ register CORE_ADDR sp = read_register (SP_REGNUM);\
- register int regnum; \
- sp = push_word (sp, read_register (PC_REGNUM)); \
- sp = push_word (sp, read_register (FP_REGNUM)); \
- write_register (FP_REGNUM, sp); \
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- sp = push_word (sp, read_register (regnum)); \
- sp = push_word (sp, read_register (PS_REGNUM)); \
- write_register (SP_REGNUM, sp); }
-
-/* Discard from the stack the innermost frame, restoring all registers. */
-
-#define POP_FRAME \
-{ register FRAME frame = get_current_frame (); \
- register CORE_ADDR fp; \
- register int regnum; \
- struct frame_saved_regs fsr; \
- struct frame_info *fi; \
- fi = get_frame_info (frame); \
- fp = fi->frame; \
- get_frame_saved_regs (fi, &fsr); \
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- if (fsr.regs[regnum]) \
- write_register (regnum, read_memory_integer (fsr.regs[regnum], 4)); \
- if (fsr.regs[PS_REGNUM]) \
- write_register (PS_REGNUM, read_memory_integer (fsr.regs[PS_REGNUM], 4)); \
- write_register (FP_REGNUM, read_memory_integer (fp, 4)); \
- write_register (PC_REGNUM, read_memory_integer (fp + 4, 4)); \
- write_register (SP_REGNUM, fp + 8); \
- flush_cached_frames (); \
- set_current_frame ( create_new_frame (read_register (FP_REGNUM),\
- read_pc ())); }
-
-/* This sequence of words is the instructions
- moveml 0xfffc,-(sp)
- clrw -(sp)
- movew ccr,-(sp)
- /..* The arguments are pushed at this point by GDB;
- no code is needed in the dummy for this.
- The CALL_DUMMY_START_OFFSET gives the position of
- the following jsr instruction. *../
- jsr @#32323232
- addl #69696969,sp
- bpt
- nop
-Note this is 24 bytes.
-We actually start executing at the jsr, since the pushing of the
-registers is done by PUSH_DUMMY_FRAME. If this were real code,
-the arguments for the function called by the jsr would be pushed
-between the moveml and the jsr, and we could allow it to execute through.
-But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is done,
-and we cannot allow the moveml to push the registers again lest they be
-taken for the arguments. */
-
-#define CALL_DUMMY {0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, 0x4e4f4e71}
-
-#define CALL_DUMMY_LENGTH 24
-
-#define CALL_DUMMY_START_OFFSET 8
-
-/* Insert the specified number of args and function address
- into a call sequence of the above form stored at DUMMYNAME. */
-#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
-{ *(int *)((char *) dummyname + 16) = nargs * 4; \
- *(int *)((char *) dummyname + 10) = fun; }
+#include "tm-68k.h"
../include/target.h (included by ../include/a.out.gnu.h). */
#define GDB_TARGET_IS_SUN3 1
-#include "tm-68k.h"
-
/* Define this if the C compiler puts an underscore at the front
of external names before giving them to the linker. */
/* Address of the end of stack space. We get this from the system
include files. */
+
#include <sys/types.h>
#include <machine/vmparam.h>
#define STACK_END_ADDR USRSTACK
-\f
-/* Things needed for making the inferior call functions. */
-
-/* Push an empty stack frame, to record the current PC, etc. */
-
-#define PUSH_DUMMY_FRAME \
-{ register CORE_ADDR sp = read_register (SP_REGNUM); \
- register int regnum; \
- char raw_buffer[12]; \
- sp = push_word (sp, read_register (PC_REGNUM)); \
- sp = push_word (sp, read_register (FP_REGNUM)); \
- write_register (FP_REGNUM, sp); \
- for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \
- { read_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 12); \
- sp = push_bytes (sp, raw_buffer, 12); } \
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- sp = push_word (sp, read_register (regnum)); \
- sp = push_word (sp, read_register (PS_REGNUM)); \
- write_register (SP_REGNUM, sp); }
-
-/* Discard from the stack the innermost frame,
- restoring all saved registers. */
-
-#define POP_FRAME \
-{ register FRAME frame = get_current_frame (); \
- register CORE_ADDR fp; \
- register int regnum; \
- struct frame_saved_regs fsr; \
- struct frame_info *fi; \
- char raw_buffer[12]; \
- fi = get_frame_info (frame); \
- fp = fi->frame; \
- get_frame_saved_regs (fi, &fsr); \
- for (regnum = FP0_REGNUM + 7; regnum >= FP0_REGNUM; regnum--) \
- if (fsr.regs[regnum]) \
- { read_memory (fsr.regs[regnum], raw_buffer, 12); \
- write_register_bytes (REGISTER_BYTE (regnum), raw_buffer, 12); }\
- for (regnum = FP_REGNUM - 1; regnum >= 0; regnum--) \
- if (fsr.regs[regnum]) \
- write_register (regnum, read_memory_integer (fsr.regs[regnum], 4)); \
- if (fsr.regs[PS_REGNUM]) \
- write_register (PS_REGNUM, read_memory_integer (fsr.regs[PS_REGNUM], 4)); \
- write_register (FP_REGNUM, read_memory_integer (fp, 4)); \
- write_register (PC_REGNUM, read_memory_integer (fp + 4, 4)); \
- write_register (SP_REGNUM, fp + 8); \
- flush_cached_frames (); \
- set_current_frame (create_new_frame (read_register (FP_REGNUM), \
- read_pc ())); }
-/* This sequence of words is the instructions
- fmovem 0xff,-(sp)
- moveml 0xfffc,-(sp)
- clrw -(sp)
- movew ccr,-(sp)
- /..* The arguments are pushed at this point by GDB;
- no code is needed in the dummy for this.
- The CALL_DUMMY_START_OFFSET gives the position of
- the following jsr instruction. *../
- jsr @#32323232
- addl #69696969,sp
- trap #15
- nop
-Note this is 28 bytes.
-We actually start executing at the jsr, since the pushing of the
-registers is done by PUSH_DUMMY_FRAME. If this were real code,
-the arguments for the function called by the jsr would be pushed
-between the moveml and the jsr, and we could allow it to execute through.
-But the arguments have to be pushed by GDB after the PUSH_DUMMY_FRAME is done,
-and we cannot allow the moveml to push the registers again lest they be
-taken for the arguments. */
-
-#define CALL_DUMMY {0xf227e0ff, 0x48e7fffc, 0x426742e7, 0x4eb93232, 0x3232dffc, 0x69696969, 0x4e4f4e71}
-
-#define CALL_DUMMY_LENGTH 28
-
-#define CALL_DUMMY_START_OFFSET 12
-
-/* Insert the specified number of args and function address
- into a call sequence of the above form stored at DUMMYNAME. */
-
-#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
-{ int temp; \
- temp = nargs * 4; \
+#include "tm-68k.h"
SWAP_TARGET_AND_HOST (temp, 4); \
bcopy ((char *)&temp, (char *)(dummyname) + 20, 4); \
temp = fun; \
register int i;
CORE_ADDR start_sp;
/* CALL_DUMMY is an array of words (REGISTER_TYPE), but each word
- in in host byte order. It is switched to target byte order before calling
+ is in host byte order. It is switched to target byte order before calling
FIX_CALL_DUMMY. */
static REGISTER_TYPE dummy[] = CALL_DUMMY;
REGISTER_TYPE dummy1[sizeof dummy / sizeof (REGISTER_TYPE)];
/* Convex Unix prohibits executing in the stack segment. */
/* Hope there is empty room at the top of the text segment. */
{
+ extern CORE_ADDR text_end;
static checked = 0;
if (!checked)
for (start_sp = text_end - sizeof dummy; start_sp < text_end; ++start_sp)
}
#else /* After text_end. */
{
+ extern CORE_ADDR text_end;
int errcode;
sp = old_sp;
start_sp = text_end;
register int c;
/* Copy the string into COPY, processing escapes.
- We could not conveniently process them in expread
+ We could not conveniently process them in the parser
because the string there wants to be a substring of the input. */
while (i - ibeg < len)
projects / external / binutils.git / commitdiff