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Host Conditionals

When GDB is configured and compiled, various macros are defined or left undefined, to control compilation based on the attributes of the host system. These macros and their meanings are:

NOTE: For now, both host and target conditionals are here. Eliminate target conditionals from this list as they are identified.

ALIGN_SIZE

alloca.c

BLOCK_ADDRESS_FUNCTION_RELATIVE

dbxread.c

GDBINIT_FILENAME

main.c

KERNELDEBUG

tm-hppa.h

MEM_FNS_DECLARED

defs.h

NO_SYS_FILE

dbxread.c

PYRAMID_CONTROL_FRAME_DEBUGGING

pyr-xdep.c

SIGWINCH_HANDLER_BODY

utils.c

1

buildsym.c

1

dbxread.c

1

dbxread.c

1

buildsym.c

1

dwarfread.c

1

valops.c

1

valops.c

1

pyr-xdep.c

ADDITIONAL_OPTIONS

main.c

ADDITIONAL_OPTION_CASES

main.c

ADDITIONAL_OPTION_HANDLER

main.c

ADDITIONAL_OPTION_HELP

main.c

ADDR_BITS_REMOVE

defs.h

AIX_BUGGY_PTRACE_CONTINUE

infptrace.c

ALIGN_STACK_ON_STARTUP

main.c

ALTOS

altos-xdep.c

ALTOS_AS

xm-altos.h

ASCII_COFF

remote-adapt.c

BADMAG

coffread.c

BCS

tm-delta88.h

BEFORE_MAIN_LOOP_HOOK

main.c

BELIEVE_PCC_PROMOTION

coffread.c

BELIEVE_PCC_PROMOTION_TYPE

stabsread.c

BIG_ENDIAN

defs.h

BITS_BIG_ENDIAN

defs.h

BKPT_AT_MAIN

solib.c

BLOCK_ADDRESS_ABSOLUTE

dbxread.c

BPT_VECTOR

tm-68k.h

BREAKPOINT

tm-68k.h

BREAKPOINT_DEBUG

breakpoint.c

BROKEN_LARGE_ALLOCA

Avoid large alloca's. For example, on sun's, Large alloca's fail because the attempt to increase the stack limit in main() fails because shared libraries are allocated just below the initial stack limit. The SunOS kernel will not allow the stack to grow into the area occupied by the shared libraries.

BSTRING

regex.c

CALL_DUMMY

valops.c

CALL_DUMMY_LOCATION

inferior.h

CALL_DUMMY_STACK_ADJUST

valops.c

CANNOT_FETCH_REGISTER

hppabsd-xdep.c

CANNOT_STORE_REGISTER

findvar.c

CFRONT_PRODUCER

dwarfread.c

CHILD_PREPARE_TO_STORE

inftarg.c

CLEAR_DEFERRED_STORES

inflow.c

CLEAR_SOLIB

objfiles.c

COFF_ENCAPSULATE

hppabsd-tdep.c

COFF_FORMAT

symm-tdep.c

COFF_NO_LONG_FILE_NAMES

coffread.c

CORE_NEEDS_RELOCATION

stack.c

CPLUS_MARKER

cplus-dem.c

CREATE_INFERIOR_HOOK

infrun.c

C_ALLOCA

regex.c

C_GLBLREG

coffread.c

DAMON

xcoffexec.c

DBXREAD_ONLY

partial-stab.h

DBX_PARM_SYMBOL_CLASS

stabsread.c

DEBUG

remote-adapt.c

DEBUG_INFO

partial-stab.h

DEBUG_PTRACE

hppabsd-xdep.c

DECR_PC_AFTER_BREAK

breakpoint.c

DEFAULT_PROMPT

main.c

DELTA88

m88k-xdep.c

DEV_TTY

symmisc.c

DGUX

m88k-xdep.c

DISABLE_UNSETTABLE_BREAK

breakpoint.c

DONT_USE_REMOTE

remote.c

DO_DEFERRED_STORES

infrun.c

DO_REGISTERS_INFO

infcmd.c

END_OF_TEXT_DEFAULT

dbxread.c

EXTERN

buildsym.h

EXTRACT_RETURN_VALUE

tm-68k.h

EXTRACT_STRUCT_VALUE_ADDRESS

values.c

EXTRA_FRAME_INFO

frame.h

EXTRA_SYMTAB_INFO

symtab.h

FILES_INFO_HOOK

target.c

FIXME

coffread.c

FLOAT_INFO

infcmd.c

FOPEN_RB

defs.h

FP0_REGNUM

a68v-xdep.c

FPC_REGNUM

mach386-xdep.c

FP_REGNUM

parse.c

FRAMELESS_FUNCTION_INVOCATION

blockframe.c

FRAME_ARGS_ADDRESS_CORRECT

stack.c

FRAME_CHAIN_COMBINE

blockframe.c

FRAME_CHAIN_VALID

frame.h

FRAME_CHAIN_VALID_ALTERNATE

frame.h

FRAME_FIND_SAVED_REGS

stack.c

FRAME_GET_BASEREG_VALUE

frame.h

FRAME_NUM_ARGS

tm-68k.h

FRAME_SPECIFICATION_DYADIC

stack.c

FUNCTION_EPILOGUE_SIZE

coffread.c

F_OK

xm-ultra3.h

GCC2_COMPILED_FLAG_SYMBOL

dbxread.c

GCC_COMPILED_FLAG_SYMBOL

dbxread.c

GCC_MANGLE_BUG

symtab.c

GCC_PRODUCER

dwarfread.c

GET_SAVED_REGISTER

findvar.c

GPLUS_PRODUCER

dwarfread.c

GR64_REGNUM

remote-adapt.c

GR64_REGNUM

remote-mm.c

HANDLE_RBRAC

partial-stab.h

HAVE_68881

m68k-tdep.c

HAVE_MMAP

In some cases, use the system call mmap for reading symbol tables. For some machines this allows for sharing and quick updates.

HAVE_REGISTER_WINDOWS

findvar.c

HAVE_SIGSETMASK

main.c

HAVE_TERMIO

inflow.c

HEADER_SEEK_FD

arm-tdep.c

HOSTING_ONLY

xm-rtbsd.h

HOST_BYTE_ORDER

ieee-float.c

HPUX_ASM

xm-hp300hpux.h

HPUX_VERSION_5

hp300ux-xdep.c

HP_OS_BUG

infrun.c

I80960

remote-vx.c

IBM6000_HOST

breakpoint.c

IBM6000_TARGET

buildsym.c

IEEE_DEBUG

ieee-float.c

IEEE_FLOAT

valprint.c

IGNORE_SYMBOL

dbxread.c

INIT_EXTRA_FRAME_INFO

blockframe.c

INIT_EXTRA_SYMTAB_INFO

symfile.c

INIT_FRAME_PC

blockframe.c

INNER_THAN

valops.c

INT_MAX

defs.h

INT_MIN

defs.h

IN_GDB

i960-pinsn.c

IN_SIGTRAMP

infrun.c

IN_SOLIB_TRAMPOLINE

infrun.c

ISATTY

main.c

IS_TRAPPED_INTERNALVAR

values.c

KERNELDEBUG

dbxread.c

KERNEL_DEBUGGING

tm-ultra3.h

KERNEL_U_ADDR

Define this to the address of the u structure (the "user struct", also known as the "u-page") in kernel virtual memory. GDB needs to know this so that it can subtract this address from absolute addresses in the upage, that are obtained via ptrace or from core files. On systems that don't need this value, set it to zero.

KERNEL_U_ADDR_BSD

Define this to cause GDB to determine the address of u at runtime, by using Berkeley-style nlist on the kernel's image in the root directory.

KERNEL_U_ADDR_HPUX

Define this to cause GDB to determine the address of u at runtime, by using HP-style nlist on the kernel's image in the root directory.

LCC_PRODUCER

dwarfread.c

LITTLE_ENDIAN

defs.h

LOG_FILE

remote-adapt.c

LONGERNAMES

cplus-dem.c

LONGEST

defs.h

LONG_LONG

defs.h

LONG_MAX

defs.h

LSEEK_NOT_LINEAR

source.c

L_LNNO32

coffread.c

L_SET

This macro is used as the argument to lseek (or, most commonly, bfd_seek). FIXME, it should be replaced by SEEK_SET instead, which is the POSIX equivalent.

MACHKERNELDEBUG

hppabsd-tdep.c

MAIN

cplus-dem.c

MAINTENANCE

dwarfread.c

MAINTENANCE_CMDS

breakpoint.c

MAINTENANCE_CMDS

maint.c

MALLOC_INCOMPATIBLE

Define this if the system's prototype for malloc differs from the ANSI definition.

MIPSEL

mips-tdep.c

MMAP_BASE_ADDRESS

When using HAVE_MMAP, the first mapping should go at this address.

MMAP_INCREMENT

when using HAVE_MMAP, this is the increment between mappings.

MONO

ser-go32.c

MOTOROLA

xm-altos.h

NAMES_HAVE_UNDERSCORE

coffread.c

NBPG

altos-xdep.c

NEED_POSIX_SETPGID

infrun.c

NEED_TEXT_START_END

exec.c

NFAILURES

regex.c

NNPC_REGNUM

infrun.c

NORETURN

defs.h

NOTDEF

regex.c

NOTDEF

remote-adapt.c

NOTDEF

remote-mm.c

NOTICE_SIGNAL_HANDLING_CHANGE

infrun.c

NO_DEFINE_SYMBOL

xcoffread.c

NO_HIF_SUPPORT

remote-mm.c

NO_JOB_CONTROL

signals.h

NO_MALLOC_CHECK

utils.c

NO_MMALLOC

utils.c

NO_MMALLOC

objfiles.c

NO_MMALLOC

utils.c

NO_SIGINTERRUPT

remote-adapt.c

NO_SINGLE_STEP

infptrace.c

NO_TYPEDEFS

xcoffread.c

NO_TYPEDEFS

xcoffread.c

NPC_REGNUM

infcmd.c

NS32K_SVC_IMMED_OPERANDS

ns32k-opcode.h

NUMERIC_REG_NAMES

mips-tdep.c

N_SETV

dbxread.c

N_SET_MAGIC

hppabsd-tdep.c

NaN

tm-umax.h

ONE_PROCESS_WRITETEXT

breakpoint.c

O_BINARY

exec.c

O_RDONLY

xm-ultra3.h

PC

convx-opcode.h

PCC_SOL_BROKEN

dbxread.c

PC_IN_CALL_DUMMY

inferior.h

PC_LOAD_SEGMENT

stack.c

PC_REGNUM

parse.c

PRINT_RANDOM_SIGNAL

infcmd.c

PRINT_REGISTER_HOOK

infcmd.c

PRINT_TYPELESS_INTEGER

valprint.c

PROCESS_LINENUMBER_HOOK

buildsym.c

PROLOGUE_FIRSTLINE_OVERLAP

infrun.c

PSIGNAL_IN_SIGNAL_H

defs.h

PS_REGNUM

parse.c

PTRACE_ARG3_TYPE

inferior.h

PTRACE_FP_BUG

mach386-xdep.c

PT_ATTACH

hppabsd-xdep.c

PT_DETACH

hppabsd-xdep.c

PT_KILL

infptrace.c

PUSH_ARGUMENTS

valops.c

PYRAMID_CONTROL_FRAME_DEBUGGING

pyr-xdep.c

PYRAMID_CORE

pyr-xdep.c

PYRAMID_PTRACE

pyr-xdep.c

REGISTER_BYTES

remote.c

REGISTER_NAMES

tm-29k.h

REG_STACK_SEGMENT

exec.c

REG_STRUCT_HAS_ADDR

findvar.c

RE_NREGS

regex.h

R_FP

dwarfread.c

R_OK

xm-altos.h

SDB_REG_TO_REGNUM

coffread.c

SEEK_END

state.c

SEEK_SET

state.c

SEM

coffread.c

SET_STACK_LIMIT_HUGE

When defined, stack limits will be raised to their maximum. Use this if your host supports setrlimit and you have trouble with stringtab in `dbxread.c'.

Also used in `fork-child.c' to return stack limits before child processes are forked.

SHELL_COMMAND_CONCAT

infrun.c

SHELL_FILE

infrun.c

SHIFT_INST_REGS

breakpoint.c

SIGN_EXTEND_CHAR

regex.c

SIGTRAP_STOP_AFTER_LOAD

infrun.c

SKIP_PROLOGUE

tm-68k.h

SKIP_PROLOGUE_FRAMELESS_P

blockframe.c

SKIP_TRAMPOLINE_CODE

infrun.c

SOLIB_ADD

core.c

SOLIB_CREATE_INFERIOR_HOOK

infrun.c

SOME_NAMES_HAVE_DOT

minsyms.c

SP_REGNUM

parse.c

STAB_REG_TO_REGNUM

stabsread.h

STACK_ALIGN

valops.c

STACK_DIRECTION

alloca.c

START_INFERIOR_TRAPS_EXPECTED

infrun.c

STOP_SIGNAL

main.c

STORE_RETURN_VALUE

tm-68k.h

SUN4_COMPILER_FEATURE

infrun.c

SUN_FIXED_LBRAC_BUG

dbxread.c

SVR4_SHARED_LIBS

solib.c

SWITCH_ENUM_BUG

regex.c

SYM1

tm-ultra3.h

SYMBOL_RELOADING_DEFAULT

symfile.c

SYNTAX_TABLE

regex.c

Sword

regex.c

TDESC

infrun.c

TIOCGETC

inflow.c

TIOCGLTC

inflow.c

TIOCGPGRP

inflow.c

TIOCLGET

inflow.c

TIOCLSET

inflow.c

TIOCNOTTY

inflow.c

TM_FILE_OVERRIDE

defs.h

T_ARG

coffread.c

T_VOID

coffread.c

UINT_MAX

defs.h

UPAGES

altos-xdep.c

USER

m88k-tdep.c

USE_GAS

xm-news.h

USE_O_NOCTTY

inflow.c

USE_STRUCT_CONVENTION

values.c

USG

Means that System V (prior to SVR4) include files are in use. (FIXME: This symbol is abused in `infrun.c', `regex.c', `remote-nindy.c', and `utils.c' for other things, at the moment.)

USIZE

xm-m88k.h

U_FPSTATE

i386-xdep.c

VARIABLES_INSIDE_BLOCK

dbxread.c

WRS_ORIG

remote-vx.c

_LANG_c

language.c

_LANG_m2

language.c

__GNUC__

news-xdep.c

__GO32__

inflow.c

__HAVE_68881__

m68k-stub.c

__HPUX_ASM__

xm-hp300hpux.h

__INT_VARARGS_H

printcmd.c

__not_on_pyr_yet

pyr-xdep.c

alloca

defs.h

const

defs.h

GOULD_PN

gould-pinsn.c

emacs

alloca.c

hp800

xm-hppabsd.h

hpux

hppabsd-core.c

lint

valarith.c

longest_to_int

defs.h

mc68020

m68k-stub.c

notdef

gould-pinsn.c

ns32k_opcodeT

ns32k-opcode.h

sgi

mips-tdep.c

sparc

regex.c

static

alloca.c

sun

m68k-tdep.c

sun386

tm-sun386.h

test

regex.c

ultrix

xm-mips.h

volatile

defs.h

x_name

coffread.c

x_zeroes

coffread.c

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