+Thu Nov 26 11:19:15 1998 Andrew Cagney <cagney@amy.cygnus.com>
+
+ * config/alpha/tm-alpha.h (ABOUT_TO_RETURN): Replace macro.
+ * alpha-tdep.c (alpha_about_to_return): With new function.
+ (heuristic_proc_start): Update.
+ * config/mips/tm-mips.h (ABOUT_TO_RETURN), mips-tdep.c
+ (heuristic_proc_start, mips_about_to_return): Ditto.
+ * config/ns32k/tm-merlin.h (ABOUT_TO_RETURN),
+ config/ns32k/tm-umax.h (ABOUT_TO_RETURN), ns32k-tdep.c
+ (ns32k_about_to_return, ns32k_get_enter_addr): Ditto.
+
+ * config/z8k/tm-z8k.h, config/w65/tm-w65.h, config/vax/tm-vax.h,
+ config/tahoe/tm-tahoe.h, config/sparc/tm-sparc.h,
+ config/sh/tm-sh.h, config/rs6000/tm-rs6000.h, config/pyr/tm-pyr.h,
+ config/pa/tm-hppa.h, config/m88k/tm-m88k.h, config/m68k/tm-m68k.h,
+ config/i960/tm-i960.h, config/i386/tm-i386.h,
+ config/h8500/tm-h8500.h, config/h8300/tm-h8300.h,
+ config/gould/tm-pn.h, config/gould/tm-np1.h,
+ config/convex/tm-convex.h, config/arm/tm-arm.h,
+ config/arc/tm-arc.h, config/a29k/tm-a29k.h: Delete macro
+ ABOUT_TO_RETURN.
+ * config/w65/tm-w65.h (RTL, RTS): Delete macros.
+ * h8500-tdep.c (about_to_return): Delete function.
+
Thu Nov 26 11:19:15 1998 Andrew Cagney <cagney@chook.cygnus.com>
* rs6000-tdep.c (rs6000_breakpoint_from_pc): Change big_breakpoint
Wed Nov 25 20:37:00 1998 Andrew Cagney <cagney@b1.cygnus.com>
+ * rs6000-tdep.c (rs6000_breakpoint_from_pc): Change big_breakpoint
+ and little_breakpoint to char[] from char*.
* mem-break.c (memory_insert_breakpoint,
memory_remove_breakpoint): Pass address of bplen.
+ * remote-array.c (array_insert_breakpoint): Change bp_addr to
+ CORE_ADDR type.
start-sanitize-vr4xxx
1998-11-24 Gavin Romig-Koch <gavin@cygnus.com>
static struct alpha_extra_func_info temp_proc_desc;
static struct frame_saved_regs temp_saved_regs;
+/* Nonzero if instruction at PC is a return instruction. "ret
+ $zero,($ra),1" on alpha. */
+
+static int
+alpha_about_to_return (pc)
+ CORE_ADDR pc;
+{
+ return read_memory_integer (pc, 4) == 0x6bfa8001;
+}
+
+
+
/* This fencepost looks highly suspicious to me. Removing it also
seems suspicious as it could affect remote debugging across serial
lines. */
return 0;
}
- else if (ABOUT_TO_RETURN(start_pc))
- break;
+ else if (alpha_about_to_return (start_pc))
+ break;
start_pc += 4; /* skip return */
return start_pc;
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction.
- On the a29k, this is a "jmpi l0" instruction. */
-
-#define ABOUT_TO_RETURN(pc) \
- ((read_memory_integer (pc, 4) & 0xff0000ff) == 0xc0000080)
-
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
#include "coff/sym.h" /* Needed for PDR below. */
#include "coff/symconst.h"
+#ifdef __STDC__
+struct frame_info;
+struct type;
+struct value;
+struct symbol;
+#endif
+
#if !defined (TARGET_BYTE_ORDER)
#define TARGET_BYTE_ORDER LITTLE_ENDIAN
#endif
some instructions. */
#define SAVED_PC_AFTER_CALL(frame) alpha_saved_pc_after_call(frame)
-#ifdef __STDC__
-struct frame_info;
-#endif
extern CORE_ADDR
alpha_saved_pc_after_call PARAMS ((struct frame_info *));
#define DECR_PC_AFTER_BREAK 4
#endif
-/* Nonzero if instruction at PC is a return instruction.
- "ret $zero,($ra),1" on alpha. */
-
-#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 4) == 0x6bfa8001)
-
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM, TYPE, FROM, TO) \
alpha_register_convert_to_virtual (REGNUM, TYPE, FROM, TO)
-#ifdef __STDC__
-struct type;
-#endif
extern void
alpha_register_convert_to_virtual PARAMS ((int, struct type *, char *, char *));
/* Things needed for making the inferior call functions. */
#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
- sp = alpha_push_arguments(nargs, args, sp, struct_return, struct_addr)
-#ifdef __STDC__
-struct value;
-#endif
+ sp = alpha_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr))
extern CORE_ADDR
alpha_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int, CORE_ADDR));
alpha_extra_func_info_t's off of this. */
#define MIPS_EFI_SYMBOL_NAME "__GDB_EFI_INFO__"
+extern void ecoff_relocate_efi PARAMS ((struct symbol *, CORE_ADDR));
/* Specific information about a procedure.
This overlays the ALPHA's PDR records,
#define INNER_THAN <
-/* Nonzero if instruction at pc is a return instruction.
- This is the "j [blink]" insn (with or without conditionals or delay
- slots). */
-
-#define ABOUT_TO_RETURN(pc) \
- ((read_memory_integer(pc, 4) & 0xffffff80) == 0x380f8000)
-
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
#define INNER_THAN <
-/* Sequence of bytes for breakpoint instruction. */
-
/* !!!! if we're using RDP, then we're inserting breakpoints and storing
their handles instread of what was in memory. It is nice that
this is the same size as a handle - otherwise remote-rdp will
have to change. */
-#define ARM_LE_BREAKPOINT {0x00,0x00,0x18,0xef} /* BKPT_SWI from <sys/ptrace.h> */
-#define ARM_BE_BREAKPOINT {0xef,0x18,0x00,0x00} /* BKPT_SWI from <sys/ptrace.h> */
-#define THUMB_LE_BREAKPOINT {0x18,0xdf} /* swi 24 */
-#define THUMB_BE_BREAKPOINT {0xdf,0x18} /* swi 24 */
-
-/* The following has been superseded by BREAKPOINT_FOR_PC, but
- is defined merely to keep mem-break.c happy. */
-#define LITTLE_BREAKPOINT ARM_LE_BREAKPOINT
-#define BIG_BREAKPOINT ARM_BE_BREAKPOINT
-
/* BREAKPOINT_FROM_PC uses the program counter value to determine whether a
16- or 32-bit breakpoint should be used. It returns a pointer
to a string of bytes that encode a breakpoint instruction, stores
point to the actual memory location where the breakpoint should be
inserted. */
-unsigned char * arm_breakpoint_from_pc PARAMS ((CORE_ADDR * pcptr, int * lenptr));
+extern breakpoint_from_pc_fn arm_breakpoint_from_pc;
#define BREAKPOINT_FROM_PC(pcptr, lenptr) arm_breakpoint_from_pc (pcptr, lenptr)
/* Amount PC must be decremented by after a breakpoint.
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. */
-
-#define ABOUT_TO_RETURN(pc) \
- ((read_memory_integer(pc, 4) & 0x0fffffff == 0x01b0f00e) || \
- (read_memory_integer(pc, 4) & 0x0ffff800 == 0x09eba800))
-
/* code to execute to print interesting information about the
* floating point processor (if any)
* No need to define if there is nothing to do.
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. */
-/* Allow any of the return instructions, including a trapv and a return
- from interupt. */
-
-#define ABOUT_TO_RETURN(pc) ((read_memory_unsigned_integer (pc, 2) & ~0x3) == 0x4e74)
-
/* Say how long registers are. */
#define REGISTER_SIZE 4
#define DECR_PC_AFTER_BREAK 0
-#if 0 /* never used */
-/* Nonzero if instruction at PC is a return instruction. */
-
-#define ABOUT_TO_RETURN(pc) about_to_return(pc)
-#endif
-
/* Say how long registers are. */
#define REGISTER_TYPE unsigned long
#define DECR_PC_AFTER_BREAK 1
-/* Nonzero if instruction at PC is a return instruction. */
-
-#define ABOUT_TO_RETURN(pc) (read_memory_integer ((pc), 1) == 0xc3)
-
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
#define INNER_THAN >
-/* Nonzero if instruction at ip is a return instruction. */
-
-#define ABOUT_TO_RETURN(ip) (read_memory_integer(ip,4) == 0x0a000000)
-
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
#define DECR_PC_AFTER_BREAK 2
#endif
-/* Nonzero if instruction at PC is a return instruction. */
-/* Allow any of the return instructions, including a trapv and a return
- from interupt. */
-
-#define ABOUT_TO_RETURN(pc) ((read_memory_integer (pc, 2) & ~0x3) == 0x4e74)
-
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. */
-/* 'jmp r1' or 'jmp.n r1' is used to return from a subroutine. */
-
-#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 2) == 0xF800)
-
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. "j ra" on mips. */
-
-int mips_about_to_return PARAMS ((CORE_ADDR pc));
-#define ABOUT_TO_RETURN(pc) mips_about_to_return (pc)
-
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. */
-
-#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 1) == 0x12)
-
/* Define this to say that the "svc" insn is followed by
codes in memory saying which kind of system call it is. */
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. */
-
-#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 1) == 0x12)
-
#if 0 /* Disable until fixed *correctly*. */
#ifndef INVALID_FLOAT
#ifndef NaN
#define REG_STRUCT_HAS_ADDR(gcc_p,type) \
(TYPE_LENGTH (type) > 8)
-#define USE_STRUCT_CONVENTION(gcc_p,type) (TYPE_LENGTH (type) > 8)
+extern use_struct_convention_fn hppa_use_struct_convention;
+#define USE_STRUCT_CONVENTION(gcc_p,type) hppa_use_struct_convention (gcc_p,type)
/* Offset from address of function to start of its code.
Zero on most machines. */
#define DECR_PC_AFTER_BREAK 0
-/* return instruction is bv r0(rp) or bv,n r0(rp)*/
-
-#define ABOUT_TO_RETURN(pc) ((read_memory_integer (pc, 4) | 0x2) == 0xE840C002)
-
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
(FRAMELESS) = frameless_function_invocation(FI)
extern int frameless_function_invocation PARAMS ((struct frame_info *));
-#define FRAME_SAVED_PC(FRAME) frame_saved_pc (FRAME)
+extern CORE_ADDR hppa_frame_saved_pc PARAMS ((struct frame_info *frame));
+#define FRAME_SAVED_PC(FRAME) hppa_frame_saved_pc (FRAME)
#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
hppa_fix_call_dummy PARAMS ((char *, CORE_ADDR, CORE_ADDR, int,
struct value **, struct type *, int));
+/* Stack must be aligned on 32-bit boundaries when synthesizing
+ function calls. We still need STACK_ALIGN, PUSH_ARGUMENTS does
+ not do all the work. */
+
+#define STACK_ALIGN(ADDR) (((ADDR) + 7) & -8)
+
#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
- sp = hppa_push_arguments(nargs, args, sp, struct_return, struct_addr)
+ sp = hppa_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr))
extern CORE_ADDR
hppa_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int,
CORE_ADDR));
probably much more common. (FIXME). */
#define COERCE_FLOAT_TO_DOUBLE (current_language -> la_language == language_c)
-
-#define STACK_ALIGN(ADDR) (((ADDR) + 7) & -8)
/* Parameters for target execution on an RS6000, for GDB, the GNU debugger.
- Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994
+ Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1997
Free Software Foundation, Inc.
Contributed by IBM Corporation.
#define INNER_THAN <
-#if 0
-/* No, we shouldn't use this. push_arguments() should leave stack in a
- proper alignment! */
-/* Stack has strict alignment. */
-
-#define STACK_ALIGN(ADDR) (((ADDR)+7)&-8)
-#endif
-
-/* This is how argumets pushed onto stack or passed in registers. */
+/* This is how arguments pushed onto stack or passed in registers.
+ Stack must be aligned on 64-bit boundaries when synthesizing
+ function calls. We don't need STACK_ALIGN, PUSH_ARGUMENTS will
+ handle it. */
#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
- sp = push_arguments(nargs, args, sp, struct_return, struct_addr)
+ sp = push_arguments((nargs), (args), (sp), (struct_return), (struct_addr))
extern CORE_ADDR push_arguments PARAMS ((int, struct value **, CORE_ADDR,
int, CORE_ADDR));
-/* Sequence of bytes for breakpoint instruction. */
-
-#define BIG_BREAKPOINT { 0x7d, 0x82, 0x10, 0x08 }
-#define LITTLE_BREAKPOINT { 0x08, 0x10, 0x82, 0x7d }
-
-#if TARGET_BYTE_ORDER == BIG_ENDIAN
-#define BREAKPOINT BIG_BREAKPOINT
-
-#else
-#if TARGET_BYTE_ORDER == LITTLE_ENDIAN
-#define BREAKPOINT LITTLE_BREAKPOINT
-#endif
-#endif
+/* BREAKPOINT_FROM_PC uses the program counter value to determine the
+ breakpoint that should be used */
+extern breakpoint_from_pc_fn rs6000_breakpoint_from_pc;
+#define BREAKPOINT_FROM_PC(pcptr, lenptr) rs6000_breakpoint_from_pc (pcptr, lenptr)
/* Amount PC must be decremented by after a breakpoint.
This is often the number of bytes in BREAKPOINT
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. */
-/* Allow any of the return instructions, including a trapv and a return
- from interrupt. */
-
-#define ABOUT_TO_RETURN(pc) \
- ((read_memory_integer (pc, 4) & 0xfe8007ff) == 0x4e800020)
-
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
frame.
The following constants were determined by experimentation on AIX 3.2. */
#define SIG_FRAME_PC_OFFSET 96
+#define SIG_FRAME_LR_OFFSET 108
#define SIG_FRAME_FP_OFFSET 284
/* Default offset from SP where the LR is stored */
#define CALL_DUMMY_START_OFFSET 16
-/* 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, using_gcc) \
- fix_call_dummy(dummyname, pc, fun, nargs, (int)type)
-extern void fix_call_dummy PARAMS ((char *, CORE_ADDR, CORE_ADDR, int, int));
-
-/* Usually a function pointer's representation is simply the address of
- the function. On the RS/6000 however, a function pointer is represented
- by a pointer to a TOC entry. This TOC entry contains three words,
- the first word is the address of the function, the second word is the
- TOC pointer (r2), and the third word is the static chain value.
- Throughout GDB it is currently assumed that a function pointer contains
- the address of the function, which is not easy to fix.
- In addition, the conversion of a function address to a function
- pointer would require allocation of a TOC entry in the inferior's
- memory space, with all its drawbacks.
- To be able to call C++ virtual methods in the inferior (which are called
- via function pointers), find_function_addr uses this macro to
- get the function address from a function pointer. */
+/* 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) \
+ rs6000_fix_call_dummy (dummyname, pc, fun, nargs, args, type, gcc_p)
+extern void rs6000_fix_call_dummy PARAMS ((char *, CORE_ADDR, CORE_ADDR,
+ int, struct value **,
+ struct type *, int));
+
+/* Hook in rs6000-tdep.c for determining the TOC address when
+ calling functions in the inferior. */
+extern CORE_ADDR (*find_toc_address_hook) PARAMS ((CORE_ADDR));
+
+/* xcoffread.c provides a function to determine the TOC offset
+ for a given object file.
+ It is used under native AIX configurations for determining the
+ TOC address when calling functions in the inferior. */
+#ifdef __STDC__
+struct objfile;
+#endif
+extern CORE_ADDR get_toc_offset PARAMS ((struct objfile *));
+
+/* Usually a function pointer's representation is simply the address
+ of the function. On the RS/6000 however, a function pointer is
+ represented by a pointer to a TOC entry. This TOC entry contains
+ three words, the first word is the address of the function, the
+ second word is the TOC pointer (r2), and the third word is the
+ static chain value. Throughout GDB it is currently assumed that a
+ function pointer contains the address of the function, which is not
+ easy to fix. In addition, the conversion of a function address to
+ a function pointer would require allocation of a TOC entry in the
+ inferior's memory space, with all its drawbacks. To be able to
+ call C++ virtual methods in the inferior (which are called via
+ function pointers), find_function_addr uses this macro to get the
+ function address from a function pointer. */
+
#define CONVERT_FROM_FUNC_PTR_ADDR(ADDR) \
(is_magic_function_pointer (ADDR) ? read_memory_integer (ADDR, 4) : (ADDR))
extern int is_magic_function_pointer PARAMS ((CORE_ADDR));
define this before including this file. */
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. */
-#define ABOUT_TO_RETURN(pc) (read_memory_integer(pc,2) == 0x000b)
-
/* Say how long registers are. */
#define REGISTER_TYPE long
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. */
-/* For SPARC, this is either a "jmpl %o7+8,%g0" or "jmpl %i7+8,%g0".
-
- Note: this does not work for functions returning structures under SunOS.
- v9 does not have such critters though. */
-#define ABOUT_TO_RETURN(pc) \
- ((read_memory_integer (pc, 4)|0x00040000) == 0x81c7e008)
-
/* Say how long (ordinary) registers are. This is a piece of bogosity
used in push_word and a few other places; REGISTER_RAW_SIZE is the
real way to know how big a register is. */
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. */
-
-#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 1) == 04)
-
/* Return 1 if P points to an invalid floating point value.
LEN is the length in bytes -- not relevant on the Vax. */
define this before including this file. */
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. */
-
-#define ABOUT_TO_RETURN(pc) \
- (read_memory_integer(pc,1) == RTL || read_memory_integer(pc,1) == RTS)
-
-#define RTL 0x6b
-#define RTS 0x60
-
/* Return 1 if P points to an invalid floating point value. */
#define INVALID_FLOAT(p, len) 0 /* Just a first guess; not checked */
#define DECR_PC_AFTER_BREAK 0
-/* Nonzero if instruction at PC is a return instruction. */
-/* Allow any of the return instructions, including a trapv and a return
- from interupt. */
-
-#define ABOUT_TO_RETURN(pc) about_to_return(pc)
-
/* Say how long registers are. */
#define REGISTER_TYPE unsigned int
return x;
}
-#if 0 /* never called */
-/* Nonzero if instruction at PC is a return instruction. */
-
-int
-about_to_return (pc)
- CORE_ADDR pc;
-{
- int b1 = read_memory_integer (pc, 1);
-
- switch (b1)
- {
- case 0x14: /* rtd #8 */
- case 0x1c: /* rtd #16 */
- case 0x19: /* rts */
- case 0x1a: /* rte */
- return 1;
- case 0x11:
- {
- int b2 = read_memory_integer (pc + 1, 1);
- switch (b2)
- {
- case 0x18: /* prts */
- case 0x14: /* prtd #8 */
- case 0x16: /* prtd #16 */
- return 1;
- }
- }
- }
- return 0;
-}
-#endif
-
void
h8500_set_pointer_size (newsize)
int newsize;
return localcount;
}
+
+/* Nonzero if instruction at PC is a return instruction. */
+
+static int
+ns32k_about_to_return (pc)
+ CORE_ADDR pc;
+{
+ return (read_memory_integer (pc, 1) == 0x12);
+}
+
+
/*
* Get the address of the enter opcode for the function
* containing PC, if there is an enter for the function,
if (pc == 0)
return 0;
- if (ABOUT_TO_RETURN (pc))
+ if (ns32k_about_to_return (pc))
return 1; /* after exit */
enter_addr = get_pc_function_start (pc);
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