This is the low level interface to inferior processes for systems
using the Unix @code{ptrace} call in a vanilla way.
-@item coredep.c::fetch_core_registers()
+@item core-aout.c::fetch_core_registers()
Support for reading registers out of a core file. This routine calls
@code{register_addr()}, see below.
Now that BFD is used to read core files, virtually all machines should
-use @code{coredep.c}, and should just provide @code{fetch_core_registers} in
+use @code{core-aout.c}, and should just provide @code{fetch_core_registers} in
@code{@var{xxx}-nat.c} (or @code{REGISTER_U_ADDR} in @code{nm-@var{xxx}.h}).
-@item coredep.c::register_addr()
+@item core-aout.c::register_addr()
If your @code{nm-@var{xxx}.h} file defines the macro
@code{REGISTER_U_ADDR(addr, blockend, regno)}, it should be defined to
set @code{addr} to the offset within the @samp{user}
struct of GDB register number @code{regno}. @code{blockend} is the
offset within the ``upage'' of @code{u.u_ar0}.
If @code{REGISTER_U_ADDR} is defined,
-@file{coredep.c} will define the @code{register_addr()} function and use
+@file{core-aout.c} will define the @code{register_addr()} function and use
the macro in it. If you do not define @code{REGISTER_U_ADDR}, but you
are using the standard @code{fetch_core_registers()}, you will need to
define your own version of @code{register_addr()}, put it into your
Then back in GDB, you need a matching routine called
@code{fetch_core_registers()}. If you can use the generic one, it's in
-@file{coredep.c}; if not, it's in your @file{@var{xxx}-nat.c} file.
+@file{core-aout.c}; if not, it's in your @file{@var{xxx}-nat.c} file.
It will be passed a char pointer to the entire ``registers'' segment,
its length, and a zero; or a char pointer to the entire ``regs2''
segment, its length, and a 2. The routine should suck out the supplied
From the top level directory (containing @file{gdb}, @file{bfd},
@file{libiberty}, and so on):
@example
-make -f Makefile.in gdb.tar.Z
+make -f Makefile.in gdb.tar.gz
@end example
This will properly configure, clean, rebuild any files that are
distributed pre-built (e.g. @file{c-exp.tab.c} or @file{refcard.ps}),
and will then make a tarfile. (If the top level directory has already
-beenn configured, you can just do @code{make gdb.tar.Z} instead.)
+been configured, you can just do @code{make gdb.tar.gz} instead.)
This procedure requires:
@itemize @bullet
@item GDBINIT_FILENAME
The default name of GDB's initialization file (normally @file{.gdbinit}).
-@item KERNELDEBUG
-tm-hppa.h
-
@item MEM_FNS_DECLARED
Your host config file defines this if it includes
declarations of @code{memcpy} and @code{memset}. Define this
files and the declarations in @file{defs.h}.
@item NO_SYS_FILE
-dbxread.c
-@item PYRAMID_CONTROL_FRAME_DEBUGGING
-pyr-xdep.c
+Define this if your system does not have a @code{<sys/file.h>}.
+
+@item SIGWINCH_HANDLER
+If your host defines @code{SIGWINCH}, you can define this to
+be the name of a function to be called if @code{SIGWINCH} is received.
+
@item SIGWINCH_HANDLER_BODY
-utils.c
+Define this to expand into code that will define the function
+named by the expansion of @code{SIGWINCH_HANDLER}.
+
@item ADDITIONAL_OPTIONS
main.c
@item ADDITIONAL_OPTION_CASES
main.c
@item ADDITIONAL_OPTION_HELP
main.c
+
@item AIX_BUGGY_PTRACE_CONTINUE
infptrace.c
-@item ALIGN_STACK_ON_STARTUP
-main.c
-@item ALTOS
-altos-xdep.c
-@item ALTOS_AS
-xm-altos.h
-@item ASCII_COFF
-remote-adapt.c
-@item BCS
-tm-delta88.h
-@item BEFORE_MAIN_LOOP_HOOK
-main.c
-@item BELIEVE_PCC_PROMOTION
-coffread.c
-@item BELIEVE_PCC_PROMOTION_TYPE
-stabsread.c
-@item BLOCK_ADDRESS_ABSOLUTE
-dbxread.c
-@item BROKEN_LARGE_ALLOCA
-Avoid large @code{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.
+@item ALIGN_STACK_ON_STARTUP
+Define this if your system is of a sort that will crash in @code{tgetent}
+if the stack happens not to be longword-aligned when @code{main} is
+called. This is a rare situation, but is known to occur on several
+different types of systems.
-@item CALL_DUMMY
-valops.c
-@item CALL_DUMMY_LOCATION
-inferior.h
-@item CALL_DUMMY_STACK_ADJUST
-valops.c
@item CFRONT_PRODUCER
dwarfread.c
-@item CHILD_PREPARE_TO_STORE
-inftarg.c
-@item CLEAR_DEFERRED_STORES
-inflow.c
-@item CLEAR_SOLIB
-objfiles.c
-@item COFF_ENCAPSULATE
-hppabsd-tdep.c
-@item COFF_FORMAT
-symm-tdep.c
-@item CORE_NEEDS_RELOCATION
-stack.c
-@item CPLUS_MARKER
-cplus-dem.c
-@item C_GLBLREG
-coffread.c
-@item DBXREAD_ONLY
-partial-stab.h
@item DBX_PARM_SYMBOL_CLASS
stabsread.c
-@item DEBUG_INFO
-partial-stab.h
-@item DEBUG_PTRACE
-hppabsd-xdep.c
-@item DECR_PC_AFTER_BREAK
-breakpoint.c
@item DEFAULT_PROMPT
The default value of the prompt string (normally @code{"(gdb) "}).
-@item DELTA88
-m88k-xdep.c
@item DEV_TTY
symmisc.c
-@item DGUX
-m88k-xdep.c
-@item DISABLE_UNSETTABLE_BREAK
-breakpoint.c
-@item DONT_USE_REMOTE
-remote.c
-@item DO_DEFERRED_STORES
-infrun.c
@item DO_REGISTERS_INFO
infcmd.c
-@item EXTRACT_RETURN_VALUE
-tm-m68k.h
-@item EXTRACT_STRUCT_VALUE_ADDRESS
-values.c
+
+@item FCLOSE_PROVIDED
+Define this if the system declares @code{fclose} in the headers included in
+@code{defs.h}. This isn't needed unless your compiler is unusually anal.
+
+@sc{ANSI} definition.
+
@item FILES_INFO_HOOK
target.c
@item FLOAT_INFO
infcmd.c
+
@item FOPEN_RB
-defs.h
-@item FUNCTION_EPILOGUE_SIZE
-coffread.c
-@item F_OK
-xm-ultra3.h
+Define this if binary files are opened the same way as text files.
+
@item GCC2_COMPILED_FLAG_SYMBOL
dbxread.c
@item GCC_COMPILED_FLAG_SYMBOL
symtab.c
@item GCC_PRODUCER
dwarfread.c
-@item GET_SAVED_REGISTER
-findvar.c
+
+@item GETENV_PROVIDED
+Define this if the system declares @code{getenv} in its headers included in
+@code{defs.h}. This isn't needed unless your compiler is unusually anal.
+
@item GPLUS_PRODUCER
dwarfread.c
-@item HANDLE_RBRAC
-partial-stab.h
@item HAVE_MMAP
In some cases, use the system call @code{mmap} for reading symbol
tables. For some machines this allows for sharing and quick updates.
-@item HAVE_REGISTER_WINDOWS
-findvar.c
@item HAVE_SIGSETMASK
-main.c
+Define this if the host system has job control, but does not
+define @code{sigsetmask()}.
+Currently, this is only true of the RS/6000.
+
@item HAVE_TERMIO
inflow.c
-@item HEADER_SEEK_FD
-arm-tdep.c
-@item HOSTING_ONLY
-xm-rtbsd.h
+
@item HOST_BYTE_ORDER
-findvar.c
-@item HP_OS_BUG
-infrun.c
-@item IEEE_FLOAT
-valprint.c
-@item IGNORE_SYMBOL
-dbxread.c
+The ordering of bytes in the host.
+This must be defined to be either @code{BIG_ENDIAN} or @code{LITTLE_ENDIAN}.
@item INT_MAX
@item INT_MIN
@item ULONG_MAX
Values for host-side constants.
-@item IN_GDB
-i960-pinsn.c
-@item IN_SIGTRAMP
-infrun.c
-@item IN_SOLIB_TRAMPOLINE
-infrun.c
-
@item ISATTY
Substitute for isatty, if not available.
-@item IS_TRAPPED_INTERNALVAR
-values.c
@item KERNEL_DEBUGGING
tm-ultra3.h
@item LCC_PRODUCER
dwarfread.c
-@item LOG_FILE
-remote-adapt.c
@item LONGEST
This is the longest integer type available on the host.
This macro is used as the argument to lseek (or, most commonly, bfd_seek).
FIXME, should be replaced by SEEK_SET instead, which is the POSIX equivalent.
-@item MACHKERNELDEBUG
-hppabsd-tdep.c
-@item MAINTENANCE
-dwarfread.c
-
@item MAINTENANCE_CMDS
If the value of this is 1, then a number of optional maintenance commands
are compiled in.
Define this if the system's prototype for @code{malloc} differs from the
@sc{ANSI} definition.
-@item MIPSEL
-mips-tdep.c
-
@item MMAP_BASE_ADDRESS
When using HAVE_MMAP, the first mapping should go at this address.
@item MMAP_INCREMENT
when using HAVE_MMAP, this is the increment between mappings.
-@item MONO
-ser-go32.c
-@item MOTOROLA
-xm-altos.h
-@item NBPG
-altos-xdep.c
@item NEED_POSIX_SETPGID
-infrun.c
-@item NEED_TEXT_START_END
-exec.c
+Define this to use the POSIX version of @code{setpgid} to determine
+whether job control is available.
@item NORETURN
If defined, this should be one or more tokens, such as @code{volatile},
@code{MMALLOC_DISABLE} in @file{config/*/*.mh}, rather than by defining
it in @file{xm-*.h}.
-@item NO_MMALLOC_CHECK
+@item NO_MMCHECK
Define this if you are using @code{mmalloc}, but don't want the overhead
-of checking the heap with @code{mmcheck}.
+of checking the heap with @code{mmcheck}. Note that on some systems,
+the C runtime makes calls to malloc prior to calling @code{main}, and if
+@code{free} is ever called with these pointers after calling @code{mmcheck}
+to enable checking, a memory corruption abort is certain to occur. These
+systems can still use mmalloc, but must define NO_MMCHECK.
+
+@item MMCHECK_FORCE
+Define this to 1 if the C runtime allocates memory prior to @code{mmcheck}
+being called, but that memory is never freed so we don't have to worry
+about it triggering a memory corruption abort. The default is 0, which
+means that @code{mmcheck} will only install the heap checking functions
+if there has not yet been any memory allocation calls, and if it fails
+to install the functions, gdb will issue a warning.
@item NO_SIGINTERRUPT
remote-adapt.c
-@item NS32K_SVC_IMMED_OPERANDS
-ns32k-opcode.h
@item NUMERIC_REG_NAMES
mips-tdep.c
@item N_SETV
exec.c
@item O_RDONLY
xm-ultra3.h
-@item PC
-convx-opcode.h
@item PCC_SOL_BROKEN
dbxread.c
-@item PC_IN_CALL_DUMMY
-inferior.h
@item PC_LOAD_SEGMENT
stack.c
@item PRINT_RANDOM_SIGNAL
infcmd.c
@item PRINT_REGISTER_HOOK
infcmd.c
-@item PRINT_TYPELESS_INTEGER
-valprint.c
@item PROCESS_LINENUMBER_HOOK
buildsym.c
@item PROLOGUE_FIRSTLINE_OVERLAP
infrun.c
-@item PSIGNAL_IN_SIGNAL_H
-defs.h
@item PUSH_ARGUMENTS
valops.c
@item PYRAMID_CONTROL_FRAME_DEBUGGING
pyr-xdep.c
@item REGISTER_BYTES
remote.c
-@item REGISTER_NAMES
-tm-a29k.h
@item REG_STACK_SEGMENT
exec.c
@item REG_STRUCT_HAS_ADDR
@item SEM
coffread.c
-@item SET_STACK_LIMIT_HUGE
-When defined, stack limits will be raised to their maximum. Use this
-if your host supports @code{setrlimit} and you have trouble with
-@code{stringtab} in @file{dbxread.c}.
-
-Also used in @file{fork-child.c} to return stack limits before child
-processes are forked.
-
@item SHELL_COMMAND_CONCAT
infrun.c
@item SHELL_FILE
infrun.c
@item STACK_ALIGN
valops.c
-@item START_INFERIOR_TRAPS_EXPECTED
-infrun.c
@item STOP_SIGNAL
main.c
@item SUN4_COMPILER_FEATURE
@end table
+Platform-specific host conditionals.
+
+@table @code
+
+@item ALTOS
+altos-xdep.c
+@item ALTOS_AS
+xm-altos.h
+@item MOTOROLA
+xm-altos.h
+@item NBPG
+altos-xdep.c
+
+@item BCS
+tm-delta88.h
+
+@item DELTA88
+m88k-xdep.c
+@item DGUX
+m88k-xdep.c
+
+@item F_OK
+xm-ultra3.h
+
+@end table
+
Regex conditionals.
-@table
+@table @code
@item C_ALLOCA
regex.c
@item BLOCK_ADDRESS_FUNCTION_RELATIVE
dbxread.c
-@item KERNELDEBUG
-tm-hppa.h
-@item NO_SYS_FILE
-dbxread.c
@item PYRAMID_CONTROL_FRAME_DEBUGGING
pyr-xdep.c
-@item SIGWINCH_HANDLER_BODY
-utils.c
@item ADDITIONAL_OPTIONS
main.c
@item ADDITIONAL_OPTION_CASES
altos-xdep.c
@item ALTOS_AS
xm-altos.h
-@item ASCII_COFF
-remote-adapt.c
@item BCS
tm-delta88.h
+
+@item BEFORE_MAIN_LOOP_HOOK
+Define this to expand into any code that you want to execute before
+the main loop starts. Although this is not, strictly speaking,
+a target conditional, that is how it is currently being used.
+Note that if a configuration were to define it one way for a host
+and a different way for the target, GDB will probably not compile,
+let alone run correctly.
+
@item BELIEVE_PCC_PROMOTION
coffread.c
@item BELIEVE_PCC_PROMOTION_TYPE
dbxread.c
@item BREAKPOINT
tm-m68k.h
+
@item CALL_DUMMY
valops.c
@item CALL_DUMMY_LOCATION
@item CFRONT_PRODUCER
dwarfread.c
-@item CHILD_PREPARE_TO_STORE
-inftarg.c
+
+@item DO_DEFERRED_STORES
@item CLEAR_DEFERRED_STORES
-inflow.c
-@item CLEAR_SOLIB
-objfiles.c
-@item COFF_ENCAPSULATE
-hppabsd-tdep.c
-@item COFF_FORMAT
-symm-tdep.c
-@item CORE_NEEDS_RELOCATION
-stack.c
+Define this to execute any deferred stores of registers into the inferior,
+and to cancel any deferred stores.
+
+Currently only implemented correctly for native Sparc configurations?
+
@item CPLUS_MARKER
-cplus-dem.c
-@item C_GLBLREG
-coffread.c
-@item DBXREAD_ONLY
-partial-stab.h
+Define this to expand into the character that G++ uses to
+distinguish compiler-generated identifiers from programmer-specified
+identifiers. By default, this expands into @code{'$'}.
+Most System V targets should define this to @code{'.'}.
+
@item DBX_PARM_SYMBOL_CLASS
stabsread.c
-@item DEBUG_INFO
-partial-stab.h
-@item DEBUG_PTRACE
-hppabsd-xdep.c
+
@item DECR_PC_AFTER_BREAK
-breakpoint.c
+Define this to be the amount by which to decrement the PC after
+the program encounters a breakpoint.
+This is often the number of bytes in BREAKPOINT, though not always.
+For most targets this value will be 0.
+
+@item DECR_PC_AFTER_HW_BREAK
+Similarly, for hardware breakpoints.
+
@item DELTA88
m88k-xdep.c
@item DEV_TTY
symmisc.c
@item DGUX
m88k-xdep.c
-@item DISABLE_UNSETTABLE_BREAK
-breakpoint.c
-@item DONT_USE_REMOTE
-remote.c
-@item DO_DEFERRED_STORES
-infrun.c
+
+@item DISABLE_UNSETTABLE_BREAK addr
+If defined, this should evaluate to 1 if @var{addr} is in a shared
+library in which breakpoints cannot be set and so should be disabled.
+
@item DO_REGISTERS_INFO
infcmd.c
target.c
@item FLOAT_INFO
infcmd.c
-@item FOPEN_RB
-defs.h
@item FP0_REGNUM
a68v-xdep.c
@item FPC_REGNUM
Given FRAME, return the pc saved there. That is, the return address.
@item FUNCTION_EPILOGUE_SIZE
-coffread.c
-@item F_OK
-xm-ultra3.h
+For some COFF targets, the @code{x_sym.x_misc.x_fsize} field of the
+function end symbol is 0. For such targets, you must define
+@code{FUNCTION_EPILOGUE_SIZE} to expand into the standard size
+of a function's epilogue.
+
@item GCC2_COMPILED_FLAG_SYMBOL
dbxread.c
@item GCC_COMPILED_FLAG_SYMBOL
this pointer. It examines the current state of the machine as needed.
@item GET_SAVED_REGISTER
-findvar.c
+Define this if you need to supply your own definition for the
+function @code{get_saved_register}.
+Currently this is only done for the a29k.
+
@item GPLUS_PRODUCER
dwarfread.c
+
@item GR64_REGNUM
-remote-adapt.c
-@item GR64_REGNUM
-remote-mm.c
-@item HANDLE_RBRAC
-partial-stab.h
-@item HAVE_68881
-m68k-tdep.c
+Very a29k-specific.
+
@item HAVE_REGISTER_WINDOWS
-findvar.c
-@item HAVE_SIGSETMASK
-main.c
-@item HAVE_TERMIO
-inflow.c
-@item HEADER_SEEK_FD
-arm-tdep.c
-@item HOSTING_ONLY
-xm-rtbsd.h
-@item HP_OS_BUG
-infrun.c
+Define this if the target has register windows.
+@item REGISTER_IN_WINDOW_P regnum
+Define this to be an expression that is 1 is the given register is
+in the window.
@item IBM6000_TARGET
Shows that we are configured for an IBM RS/6000 target. This conditional
It was introduced in haste and we are repenting at leisure.
@item IEEE_FLOAT
-valprint.c
-@item IGNORE_SYMBOL
-dbxread.c
+Define this if the target system uses IEEE-format floating point numbers.
+
+@item IGNORE_SYMBOL type
+This seems to be no longer used.
@item INIT_EXTRA_FRAME_INFO (fromleaf, fci)
If defined, this should be a C expression or statement that fills
Define this to be either @code{<} if the target's stack grows
downward in memory, or @code{>} is the stack grows upwards.
-@item IN_GDB
-i960-pinsn.c
-@item IN_SIGTRAMP
-infrun.c
-@item IN_SOLIB_TRAMPOLINE
-infrun.c
-@item IS_TRAPPED_INTERNALVAR
-values.c
+@item IN_SIGTRAMP pc name
+Define this to return true if the given pc and/or name indicates
+that the current function is a sigtramp.
+
+@item SIGTRAMP_START
+@item SIGTRAMP_END
+Define these to be the start and end address of the sigtramp.
+These will be used if defined, and @code{IN_SIGTRAMP} is not;
+otherwise the name of the sigtramp will be assumed to be @code{_sigtramp}.
+
+@item IN_SOLIB_TRAMPOLINE pc name
+Define this to evaluate to nonzero if the program is stopped in
+the trampoline that connects to a shared library.
+
+@item IS_TRAPPED_INTERNALVAR name
+This is an ugly hook to allow the specification of special actions
+that should occur as a side-effect of setting the value of a variable
+internal to GDB. Currently only used by the h8500.
+Note that this could be either a host or target conditional.
+
@item KERNEL_DEBUGGING
tm-ultra3.h
@item LCC_PRODUCER
dwarfread.c
-@item LOG_FILE
-remote-adapt.c
@item L_LNNO32
coffread.c
-@item MACHKERNELDEBUG
-hppabsd-tdep.c
-@item MAINTENANCE
-dwarfread.c
@item MIPSEL
mips-tdep.c
@item MOTOROLA
xm-altos.h
@item NBPG
altos-xdep.c
-@item NEED_POSIX_SETPGID
-infrun.c
+
@item NEED_TEXT_START_END
-exec.c
+Define this if GDB should determine the start and end addresses
+of the text section. (Seems dubious.)
+
@item NOTICE_SIGNAL_HANDLING_CHANGE
infrun.c
@item NO_HIF_SUPPORT
instruction. See @code{sparc-tdep.c} and @code{rs6000-tdep.c}
for examples.
-@item NS32K_SVC_IMMED_OPERANDS
-ns32k-opcode.h
@item NUMERIC_REG_NAMES
mips-tdep.c
@item N_SETV
hppabsd-tdep.c
@item ONE_PROCESS_WRITETEXT
breakpoint.c
-@item PC
-convx-opcode.h
@item PCC_SOL_BROKEN
dbxread.c
@item PC_IN_CALL_DUMMY
infcmd.c
@item PRINT_REGISTER_HOOK
infcmd.c
+
@item PRINT_TYPELESS_INTEGER
-valprint.c
+This is an obscure substitute for @code{print_longest} that
+seems to have been defined for the Convex target.
+
@item PROCESS_LINENUMBER_HOOK
buildsym.c
@item PROLOGUE_FIRSTLINE_OVERLAP
infrun.c
-@item PSIGNAL_IN_SIGNAL_H
-defs.h
@item PS_REGNUM
parse.c
@item PUSH_ARGUMENTS
valops.c
@item REGISTER_BYTES
remote.c
+
@item REGISTER_NAMES
-tm-a29k.h
+Define this to expand into an initializer of an array of strings.
+Each string is the name of a register.
+[more detail]
+
@item REG_STACK_SEGMENT
exec.c
@item REG_STRUCT_HAS_ADDR
@item STACK_ALIGN
valops.c
-@item START_INFERIOR_TRAPS_EXPECTED
-infrun.c
@item STOP_SIGNAL
main.c
Motorola M68K target conditionals.
-@table
+@table @code
@item BPT_VECTOR
Define this to be the 4-bit location of the breakpoint trap vector.
If defined, then GDB will include support for the @code{attach} and
@code{detach} commands.
+@item CHILD_PREPARE_TO_STORE
+If the machine stores all registers at once in the child process,
+then define this to ensure that all values are correct.
+This usually entails a read from the child.
+
+[Note that this is incorrectly defined in @file{xm-@var{system}.h}
+files currently.]
+
@item FETCH_INFERIOR_REGISTERS
Define this if the native-dependent code will provide its
own routines
Define this to expand into any shared-library-relocation code
that you want to be run just after the child process has been forked.
+@item START_INFERIOR_TRAPS_EXPECTED
+When starting an inferior, GDB normally expects to trap twice;
+once when the shell execs, and once when the program itself execs.
+If the actual number of traps is something other than 2, then
+define this macro to expand into the number expected.
+
@item USE_PROC_FS
This determines whether small routines in @file{*-tdep.c}, which
translate register values
registers. I'm guessing that @code{#define U_REGS_OFFSET 0} means that
u.u_ar0 @emph{is} the location of the registers.
+@item CLEAR_SOLIB
+objfiles.c
+
+@item DEBUG_PTRACE
+Define this to debug ptrace calls.
+
@end table
@node Obsolete Conditionals
otherwise touched.
@table @code
+
@item STACK_END_ADDR
This macro used to define where the end of the stack appeared, for use
in interpreting core file formats that don't record this address in the
Any @file{@var{foo}-xdep.c} file that references STACK_END_ADDR
is so old that it has never been converted to use BFD. Now that's old!
+
@end table
@node XCOFF
/* Prototypes for local functions */
-#if defined (NO_MMALLOC) || defined (NO_MMALLOC_CHECK)
-#else
-
-static void
-malloc_botch PARAMS ((void));
-
-#endif /* NO_MMALLOC, etc */
-
static void
fatal_dump_core PARAMS((char *, ...));
#endif /* NO_MMALLOC */
-#if defined (NO_MMALLOC) || defined (NO_MMALLOC_CHECK)
+#if defined (NO_MMALLOC) || defined (NO_MMCHECK)
void
init_malloc (md)
{
}
-#else /* have mmalloc and want corruption checking */
+#else /* Have mmalloc and want corruption checking */
static void
malloc_botch ()
by MD, to detect memory corruption. Note that MD may be NULL to specify
the default heap that grows via sbrk.
- Note that for freshly created regions, we must call mmcheck prior to any
+ Note that for freshly created regions, we must call mmcheckf prior to any
mallocs in the region. Otherwise, any region which was allocated prior to
installing the checking hooks, which is later reallocated or freed, will
fail the checks! The mmcheck function only allows initial hooks to be
Returns zero on failure, non-zero on success. */
+#ifndef MMCHECK_FORCE
+#define MMCHECK_FORCE 0
+#endif
+
void
init_malloc (md)
PTR md;
{
- if (!mmcheck (md, malloc_botch))
+ if (!mmcheckf (md, malloc_botch, MMCHECK_FORCE))
{
- warning ("internal error: failed to install memory consistency checks");
+ /* Don't use warning(), which relies on current_target being set
+ to something other than dummy_target, until after
+ initialize_all_files(). */
+
+ fprintf_unfiltered
+ (gdb_stderr, "warning: failed to install memory consistency checks; ");
+ fprintf_unfiltered
+ (gdb_stderr, "configuration should define NO_MMCHECK or MMCHECK_FORCE\n");
}
mmtrace ();
SIGWINCH_HANDLER_BODY
#endif
\f
-#ifdef HAVE_LONG_DOUBLE
-/* Support for converting target fp numbers into host long double format. */
+/* Support for converting target fp numbers into host DOUBLEST format. */
/* XXX - This code should really be in libiberty/floatformat.c, however
configuration issues with libiberty made this very difficult to do in the
return result;
}
-/* Convert from FMT to a long double.
+/* Convert from FMT to a DOUBLEST.
FROM is the address of the extended float.
- Store the long double in *TO. */
+ Store the DOUBLEST in *TO. */
void
-floatformat_to_long_double (fmt, from, to)
+floatformat_to_doublest (fmt, from, to)
const struct floatformat *fmt;
char *from;
- long double *to;
+ DOUBLEST *to;
{
unsigned char *ufrom = (unsigned char *)from;
- long double dto;
+ DOUBLEST dto;
long exponent;
unsigned long mant;
unsigned int mant_bits, mant_off;
}
}
+#ifdef HAVE_LONG_DOUBLE
/* Return the fractional part of VALUE, and put the exponent of VALUE in *EPTR.
The range of the returned value is >= 0.5 and < 1.0. This is equivalent to
frexp, but operates on the long double data type. */
*eptr = exp;
return value/tmp;
}
+#endif /* HAVE_LONG_DOUBLE */
+
-/* The converse: convert the long double *FROM to an extended float
+/* The converse: convert the DOUBLEST *FROM to an extended float
and store where TO points. Neither FROM nor TO have any alignment
restrictions. */
void
-floatformat_from_long_double (fmt, from, to)
+floatformat_from_doublest (fmt, from, to)
CONST struct floatformat *fmt;
- long double *from;
+ DOUBLEST *from;
char *to;
{
- long double dfrom;
+ DOUBLEST dfrom;
int exponent;
- long double mant;
+ DOUBLEST mant;
unsigned int mant_bits, mant_off;
int mant_bits_left;
unsigned char *uto = (unsigned char *)to;
/* How to tell an infinity from an ordinary number? FIXME-someday */
+#ifdef HAVE_LONG_DOUBLE
mant = ldfrexp (dfrom, &exponent);
+#else
+ mant = frexp (dfrom, &exponent);
+#endif
+
put_field (uto, fmt->byteorder, fmt->totalsize, fmt->exp_start, fmt->exp_len,
exponent + fmt->exp_bias - 1);
mant_bits_left -= mant_bits;
}
}
-
-#endif /* HAVE_LONG_DOUBLE */
projects / binutils-gdb.git / commitdiff