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riscv-gcc-1
Commit 7816bea0 by Daniel Jacobowitz Committed by Daniel Jacobowitz
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config.gcc: Reorganize --with-cpu logic. 

	* config.gcc: Reorganize --with-cpu logic.  Set
	configure_default_options according to the default CPU, --with-cpu,
	--with-arch, --with-tune, --with-schedule, --with-abi, and
	--with-float.  Check for legal values of various options.
	* configure.in: Define configure_default_options in configargs.h.
	* configure: Regenerated.
	* config/mips/mips.h (TARGET_DEFAULT_ARCH_P)
	(TARGET_DEFAULT_FLOAT_P): New macros.
	* gcc.c (do_option_spec): New function.
	(struct default_spec, option_default_specs): New.
	(main): Call do_option_spec.
	* config/alpha/alpha.h, config/arm/arm.h, config/i386/i386.h,
	config/mips/mips.h, config/pa/pa.h, config/rs6000/rs6000.h,
	config/sparc/sparc.h (OPTION_DEFAULT_SPECS): Define.

	* doc/install.texi: Update --with-cpu documentation.  Mention
	--with-arch, --with-schedule, --with-tune, --with-abi, and
	--with-float.
	* doc/tm.texi (Driver): Document OPTION_DEFAULT_SPECS.

From-SVN: r67457
parent 83079d89
Showing with 409 additions and 97 deletions
gcc/ChangeLog
2003-06-04 Daniel Jacobowitz <drow@mvista.com>
* config.gcc: Reorganize --with-cpu logic. Set
configure_default_options according to the default CPU, --with-cpu,
--with-arch, --with-tune, --with-schedule, --with-abi, and
--with-float. Check for legal values of various options.
* configure.in: Define configure_default_options in configargs.h.
* configure: Regenerated.
* config/mips/mips.h (TARGET_DEFAULT_ARCH_P)
(TARGET_DEFAULT_FLOAT_P): New macros.
* gcc.c (do_option_spec): New function.
(struct default_spec, option_default_specs): New.
(main): Call do_option_spec.
* config/alpha/alpha.h, config/arm/arm.h, config/i386/i386.h,
config/mips/mips.h, config/pa/pa.h, config/rs6000/rs6000.h,
config/sparc/sparc.h (OPTION_DEFAULT_SPECS): Define.
* doc/install.texi: Update --with-cpu documentation. Mention
--with-arch, --with-schedule, --with-tune, --with-abi, and
--with-float.
* doc/tm.texi (Driver): Document OPTION_DEFAULT_SPECS.
2003-06-04 Daniel Jacobowitz <drow@mvista.com>
* config.gcc: Only process --with-cpu logic in the third pass.
2003-06-04 Daniel Jacobowitz <drow@mvista.com>
......
gcc/config.gcc
......@@ -165,6 +165,10 @@
# determines the underlying integral type for
# HOST_WIDE_INT cannot see the definition of
# MAX_LONG_TYPE_SIZE.)
#
# configure_default_options
# Set to an initializer for configure_default_options
# in configargs.h, based on --with-cpu et cetera.
# The following variables are used in each case-construct to build up the
# outgoing variables:
......@@ -2236,41 +2240,99 @@ then
esac
fi
# Optionally, validate the argument to --with-cpu.
# This block sets nothing.
case $machine in
# Validate and mark as valid any --with options supported
# by this target. In order to use a particular --with option
# you must list it in supported_defaults; validating the value
# is optional. This case statement should set nothing besides
# supported_defaults.
supported_defaults=
case "$machine" in
alpha*-*-*)
case "x$with_cpu" in
supported_defaults="cpu tune"
for which in cpu tune; do
eval "val=\$with_$which"
case "x$val" in
x \
| xev4 | xev45 | x21064 | xev5 | x21164 | xev56 | x21164a \
| xpca56 | x21164PC | x21164pc | xev6 | x21264 | xev67 \
| x21264a)
;;
*)
echo "Unknown CPU used in --with-$which=$val" 1>&2
exit 1
;;
esac
done
;;
arm*-*-*)
supported_defaults="arch cpu float tune"
for which in cpu tune; do
eval "val=\$with_$which"
case "x$val" in
x \
| xarm[236789] | xarm250 | xarm[67][01]0 \
| xarm60 | xarm620 | xarm7d | xarm7di \
| xarm7m | xarm7dm | xarm7dmi | xarm[79]tdmi \
| xarm70 | xarm700i | xarm710t | xarm720 \
| xarm720t | xarm740t | xarm710c | xarm920 \
| xarm920t | xarm940t | xarm9e | xarm10tdmi \
| xarm7100 | xarm7500 | xarm7500fe | xarm810 \
| xarm1020t \
| xxscale \
| xep9312 \
| xstrongarm | xstrongarm110 | xstrongarm11[01]0)
# OK
;;
*)
echo "Unknown CPU used in --with-$which=$val" 1>&2
exit 1
;;
esac
done
case "x$with_arch" in
x \
| xev5 | xev56 | xpca56 | xev6 | xev67)
| xarmv[2345] | xarmv2a | xarmv3m | xarmv4t | xarmv5t \
| xarmv5te | ep9312)
# OK
;;
*)
echo "Unknown CPU used in --with-cpu=$with_cpu" 1>&2
echo "Unknown arch used in --with-arch=$with_arch" 1>&2
exit 1
;;
esac
;;
arm*-*-*)
case "x$with_cpu" in
case "x$with_float" in
x \
| xarm[236789] | xarm250 | xarm[67][01]0 \
| xarm7m | xarm7dm | xarm7dmi | xarm[79]tdmi \
| xarm7100 | xarm7500 | xarm7500fe | xarm810 \
| xxscale \
| xep9312 \
| xstrongarm | xstrongarm110 | xstrongarm1100)
| xsoft | xhard)
# OK
;;
*)
echo "Unknown cpu used in --with-cpu=$with_cpu" 1>&2
echo "Unknown floating point type used in --with-float=$with_float" 1>&2
exit 1
;;
esac
if test "x$with_arch" != x && test "x$with_cpu" != x; then
echo "Warning: --with-arch overrides --with-cpu" 1>&2
fi
;;
hppa*-*-* | parisc*-*-*)
supported_defaults="arch schedule"
case "x$with_arch" in
x | x1.0 | x1.1 | x2.0)
# OK
;;
*)
echo "Unknown architecture used in --with-arch=$with_arch" 1>&2
exit 1
;;
esac
case "x$with_schedule" in
x | x700 | x7100 | x7100LC | x7200 | x7300 | x8000)
# OK
......@@ -2283,61 +2345,112 @@ then
;;
i[34567]86-*-* | x86_64-*-*)
case x$with_cpu in
supported_defaults="arch cpu tune"
for which in arch cpu tune; do
eval "val=\$with_$which"
case "x$val" in
x \
| xi386 | xi486 \
| xi586 | xpentium | xpentium-mmx | xwinchip-c6 | xwinchip2 \
| xc3 | xc3-2 | xi686 | xpentiumpro | xpentium2 | xpentium3 \
| xpentium4 | xk6 | xk6-2 | xk6-3 | xathlon | xathlon-tbird \
| xathlon-4 | xathlon-xp | xathlon-mp | xk8)
# OK
;;
*)
echo "Unknown CPU given in --with-$which=$val." 1>&2
exit 1
;;
esac
done
;;
mips*-*-*)
supported_defaults="abi arch float tune"
case "x$with_float" in
x \
| xi486 \
| xi586 | xk6 | xk6-2 | xk6-3 | xpentium-mmx | xpentium \
| xpentiumpro | xpentium2 | xpentium3 | xpentium4 \
| xathlon | xathlon-4 | xk8)
| xsoft | xhard)
# OK
;;
*)
echo "Unknown CPU given in --with-cpu=$with_cpu." 1>&2
echo "Unknown floating point type used in --with-float=$with_float" 1>&2
exit 1
;;
esac
;;
powerpc*-*-* | rs6000-*-*)
case "x$with_cpu" in
case "x$with_abi" in
x \
| xdefault32 | xdefault64 \
| xcommon \
| xpower | xpower2 | xpower3 | xpower4 \
| xpowerpc | xpowerpc64 \
| xrios | xrios1 | xrios2 | xrsc | xrsc1 | xrs64a \
| x401 | x403 | x405 | x405fp | x440 | x440fp | x505 \
| x601 | x602 | x603 | x603e | xec603e | x604 \
| x604e | x620 | x630 | x740 | x750 | x7400 | x7450 \
| x8540 | x801 | x821 | x823 | x860)
| x32 | xo64 | xn32 | x64 | xeabi)
# OK
;;
*)
echo "Unknown cpu used in --with-cpu=$with_cpu." 1>&2
echo "Unknown ABI used in --with-abi=$with_abi" 1>&2
exit 1
;;
esac
;;
powerpc*-*-* | rs6000-*-*)
supported_defaults="cpu float tune"
for which in cpu tune; do
eval "val=\$with_$which"
case "x$val" in
x \
| xdefault32 | xdefault64 \
| xcommon \
| xpower | xpower2 | xpower3 | xpower4 \
| xpowerpc | xpowerpc64 \
| xrios | xrios1 | xrios2 | xrsc | xrsc1 | xrs64a \
| x401 | x403 | x405 | x405fp | x440 | x440fp | x505 \
| x601 | x602 | x603 | x603e | xec603e | x604 \
| x604e | x620 | x630 | x740 | x750 | x7400 | x7450 \
| x8540 | x801 | x821 | x823 | x860)
# OK
;;
*)
echo "Unknown cpu used in --with-$which=$val." 1>&2
exit 1
;;
esac
done
;;
sparc*-*-*)
case x$with_cpu in
x)
echo "Should never happen - no default CPU for sparc target."
exit 1
;;
supported_defaults="cpu float tune"
for which in cpu tune; do
eval "val=\$with_$which"
case x$val in
x \
| xsparc | xsparcv9 | xsparc86x \
| xv7 | xcypress | xv8 | xsupersparc | xsparclite | xf930 \
| xf934 | xhypersparc | xsparclite86x | xsparclet | tsc701 \
| xv9 | xultrasparc | xultrasparc3)
# OK
;;
*)
echo "Unknown cpu used in --with-$which=$val" 1>&2
exit 1
;;
esac
done
xsparc | xsparc86x | xsparcv9 | xsparc64 \
| xsupersparc | xhypersparc | xultrasparc | xv7 | xv8 | xv9)
case "x$with_float" in
x \
| xsoft | xhard)
# OK
;;
*)
echo "Unknown cpu used in --with-$which=$val" 1>&2
echo "Unknown floating point type used in --with-float=$with_float" 1>&2
exit 1
;;
esac
;;
v850*-*-*)
supported_defaults=cpu
case "x$with_cpu" in
x | xv850e)
# OK
......@@ -2350,38 +2463,13 @@ then
;;
esac
# Now, for targets which support this, convert --with-cpu to
# a setting of target_cpu_default2. This block also sets assorted
# other configuration variables.
# Set some miscellaneous flags for particular targets.
target_cpu_default2=
case $machine in
alpha*-*-*)
case $with_cpu in
ev67)
target_cpu_default2="MASK_CPU_EV6|MASK_BWX|MASK_MAX|MASK_FIX|MASK_CIX"
;;
ev6)
target_cpu_default2="MASK_CPU_EV6|MASK_BWX|MASK_MAX|MASK_FIX"
;;
pca56)
target_cpu_default2="MASK_CPU_EV5|MASK_BWX|MASK_MAX"
;;
ev56)
target_cpu_default2="MASK_CPU_EV5|MASK_BWX"
;;
ev5)
target_cpu_default2="MASK_CPU_EV5"
;;
esac
if test x$gas = xyes
then
if test "$target_cpu_default2" = ""
then
target_cpu_default2="MASK_GAS"
else
target_cpu_default2="${target_cpu_default2}|MASK_GAS"
fi
target_cpu_default2="MASK_GAS"
fi
;;
......@@ -2403,22 +2491,6 @@ then
then
target_cpu_default2="MASK_GAS|MASK_JUMP_IN_DELAY"
fi
if test "x$with_schedule" != x
then
tm_defines="TARGET_SCHED_DEFAULT=\\\"$with_schedule\\\""
;;
fi
;;
i[34567]86-*-* | x86_64-*-*)
case x$with_cpu in
xathlon-4)
target_cpu_default2=TARGET_CPU_DEFAULT_athlon_sse
;;
*)
target_cpu_default2=TARGET_CPU_DEFAULT_"`echo $with_cpu | sed s/-/_/`"
;;
esac
;;
mips*-*-*)
......@@ -2462,10 +2534,12 @@ then
;;
powerpc*-*-* | rs6000-*-*)
if test x$enable_altivec = xyes
then
tm_file="$tm_file rs6000/altivec-defs.h"
fi
if test x$enable_altivec = xyes
then
tm_file="$tm_file rs6000/altivec-defs.h"
fi
# FIXME: The PowerPC port uses the value set at compile time,
# although it's only cosmetic.
if test "x$with_cpu" != x
then
target_cpu_default2="\\\"$with_cpu\\\""
......@@ -2477,10 +2551,25 @@ then
;;
sparc*-*-*)
# Some standard aliases.
case x$with_cpu in
xsparc)
with_cpu=v7
;;
xsparc86x)
with_cpu=sparclite86x
;;
xsparcv9 | xsparc64)
with_cpu=v9
;;
esac
# The Sparc port checks this value at compile-time.
target_cpu_default2="TARGET_CPU_$with_cpu"
;;
v850*-*-*)
# FIXME: The v850 is "special" in that it does not support
# runtime CPU selection, only --with-cpu.
case "x$with_cpu" in
x)
;;
......@@ -2491,6 +2580,36 @@ then
;;
esac
t=
all_defaults="abi cpu arch tune schedule float"
for option in $all_defaults
do
eval "val=\$with_$option"
if test -n "$val"; then
case " $supported_defaults " in
*" $option "*)
;;
*)
echo "This target does not support --with-$option." 2>&1
exit 1
;;
esac
if test "x$t" = x
then
t="{ \"$option\", \"$val\" }"
else
t="${t}, { \"$option\", \"$val\" }"
fi
fi
done
if test "x$t" = x
then
configure_default_options="{ { NULL, NULL} }"
else
configure_default_options="{ ${t} }"
fi
if test "$target_cpu_default2" != ""
then
if test "$target_cpu_default" != ""
......
gcc/config/alpha/alpha.h
......@@ -365,6 +365,13 @@ extern const char *alpha_tls_size_string; /* For -mtls-size= */
N_("Specify bit size of immediate TLS offsets"), 0}, \
}
/* Support for a compile-time default CPU, et cetera. The rules are:
--with-cpu is ignored if -mcpu is specified.
--with-tune is ignored if -mtune is specified. */
#define OPTION_DEFAULT_SPECS \
{"cpu", "%{!mcpu=*:-mcpu=%(VALUE)}" }, \
{"tune", "%{!mtune=*:-mtune=%(VALUE)}" }
/* This macro defines names of additional specifications to put in the
specs that can be used in various specifications like CC1_SPEC. Its
definition is an initializer with a subgrouping for each command option.
......
gcc/config/arm/arm.h
......@@ -525,6 +525,20 @@ Unrecognized value in TARGET_CPU_DEFAULT.
N_("Specify the register to be used for PIC addressing"), 0} \
}
/* Support for a compile-time default CPU, et cetera. The rules are:
--with-arch is ignored if -march or -mcpu are specified.
--with-cpu is ignored if -march or -mcpu are specified, and is overridden
by --with-arch.
--with-tune is ignored if -mtune or -mcpu are specified (but not affected
by -march).
--with-float is ignored if -mhard-float or -msoft-float are
specified. */
#define OPTION_DEFAULT_SPECS \
{"arch", "%{!march=*:%{!mcpu=*:-march=%(VALUE)}}" }, \
{"cpu", "%{!march=*:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
{"tune", "%{!mcpu=*:%{!mtune=*:-mtune=%(VALUE)}}" }, \
{"float", "%{!msoft-float:%{!mhard-float:-m%(VALUE)-float}}" }
struct arm_cpu_select
{
const char * string;
......
gcc/config/i386/i386.h
......@@ -483,6 +483,12 @@ extern int x86_prefetch_sse;
#define OPTIMIZATION_OPTIONS(LEVEL, SIZE) \
optimization_options ((LEVEL), (SIZE))
/* Support for configure-time defaults of some command line options. */
#define OPTION_DEFAULT_SPECS \
{"arch", "%{!march=*:-march=%(VALUE)}"}, \
{"tune", "%{!mtune=*:%{!mcpu=*:-mtune=%(VALUE)}}" }, \
{"cpu", "%{!mtune=*:%{!mcpu=*:-mtune=%(VALUE)}}" }
/* Specs for the compiler proper */
#ifndef CC1_CPU_SPEC
......
gcc/config/mips/mips.h
......@@ -785,6 +785,20 @@ extern void sbss_section PARAMS ((void));
/* This is meant to be redefined in the host dependent files. */
#define SUBTARGET_TARGET_OPTIONS
/* Support for a compile-time default CPU, et cetera. The rules are:
--with-arch is ignored if -march is specified or a -mips is specified
(other than -mips16).
--with-tune is ignored if -mtune is specified.
--with-abi is ignored if -mabi is specified.
--with-float is ignored if -mhard-float or -msoft-float are
specified. */
#define OPTION_DEFAULT_SPECS \
{"arch", "%{!march=*:%{mips16:-march=%(VALUE)}%{!mips*:-march=%(VALUE)}}" }, \
{"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
{"abi", "%{!mabi=*:-mabi=%(VALUE)}" }, \
{"float", "%{!msoft-float:%{!mhard-float:-m%(VALUE)-float}}" }
#define GENERATE_BRANCHLIKELY (TARGET_BRANCHLIKELY \
&& !TARGET_SR71K \
&& !TARGET_MIPS16)
......
gcc/config/pa/pa.h
......@@ -312,6 +312,13 @@ extern int target_flags;
N_("Specify architecture for code generation. Values are 1.0, 1.1, and 2.0. 2.0 requires gas snapshot 19990413 or later."), 0}\
}
/* Support for a compile-time default CPU, et cetera. The rules are:
--with-schedule is ignored if -mschedule is specified.
--with-arch is ignored if -march is specified. */
#define OPTION_DEFAULT_SPECS \
{"arch", "%{!march=*:-march=%(VALUE)}" }, \
{"schedule", "%{!mschedule=*:-mschedule=%(VALUE)}" }
/* Specify the dialect of assembler to use. New mnemonics is dialect one
and the old mnemonics are dialect zero. */
#define ASSEMBLER_DIALECT (TARGET_PA_20 ? 1 : 0)
......
gcc/config/rs6000/rs6000.h
......@@ -407,6 +407,16 @@ extern enum processor_type rs6000_cpu;
SUBTARGET_OPTIONS \
}
/* Support for a compile-time default CPU, et cetera. The rules are:
--with-cpu is ignored if -mcpu is specified.
--with-tune is ignored if -mtune is specified.
--with-float is ignored if -mhard-float or -msoft-float are
specified. */
#define OPTION_DEFAULT_SPECS \
{"cpu", "%{!mcpu=*:-mcpu=%(VALUE)}" }, \
{"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
{"float", "%{!msoft-float:%{!mhard-float:-m%(VALUE)-float}}" }
/* rs6000_select[0] is reserved for the default cpu defined via --with-cpu */
struct rs6000_cpu_select
{
......
gcc/config/sparc/sparc.h
......@@ -656,6 +656,16 @@ extern enum processor_type sparc_cpu;
/* This is meant to be redefined in target specific files. */
#define SUBTARGET_OPTIONS
/* Support for a compile-time default CPU, et cetera. The rules are:
--with-cpu is ignored if -mcpu is specified.
--with-tune is ignored if -mtune is specified.
--with-float is ignored if -mhard-float, -msoft-float, -mfpu, or -mno-fpu
are specified. */
#define OPTION_DEFAULT_SPECS \
{"cpu", "%{!mcpu=*:-mcpu=%(VALUE)}" }, \
{"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
{"float", "%{!msoft-float:%{!mhard-float:%{!fpu:%{!no-fpu:-m%(VALUE)-float}}}}" }
/* sparc_select[0] is reserved for the default cpu. */
struct sparc_cpu_select
{
......
gcc/configure.in
......@@ -1215,6 +1215,10 @@ cat > configargs.h <<EOF
/* Generated automatically. */
static const char configuration_arguments[] = "$gcc_config_arguments";
static const char thread_model[] = "$thread_file";
static const struct {
const char *name, *value;
} configure_default_options[] = $configure_default_options;
EOF
changequote([,])dnl
......
gcc/doc/install.texi
......@@ -721,12 +721,21 @@ Microsoft Win32 API thread support.
@end table
@item --with-cpu=@var{cpu}
Specify which cpu variant the
compiler should generate code for by default. This is currently
only supported on some ports, specifically arm, powerpc, and
SPARC@. If configure does not recognize the model name (e.g.@: arm700,
603e, or ultrasparc) you provide, please check the
@file{gcc/config.gcc} script for a complete list of supported models.
Specify which cpu variant the compiler should generate code for by default.
@var{cpu} will be used as the default value of the @option{-mcpu=} switch.
This option is only supported on some targets, including ARM, i386, PowerPC,
and SPARC@.
@item --with-schedule=@var{cpu}
@itemx --with-arch=@var{cpu}
@itemx --with-tune=@var{cpu}
@itemx --with-abi=@var{abi}
@itemx --with-float=@var{type}
These configure options provide default values for the @option{-mschedule=},
@option{-march=}, @option{-mtune=}, and @option{-mabi=} options and for
@option{-mhard-float} or @option{-msoft-float}. As with @option{--with-cpu},
which switches will be accepted and acceptable values of the arguments depend
on the target.
@item --enable-altivec
Specify that the target supports AltiVec vector enhancements. This
......
gcc/doc/tm.texi
......@@ -181,6 +181,25 @@ that the other specs are easier to write.
Do not define this macro if it does not need to do anything.
@findex OPTION_DEFAULT_SPECS
@item OPTION_DEFAULT_SPECS
A list of specs used to support configure-time default options (i.e.@:
@option{--with} options) in the driver. It should be a suitable initializer
for an array of structures, each containing two strings, without the
outermost pair of surrounding braces.
The first item in the pair is the name of the default. This must match
the code in @file{config.gcc} for the target. The second item is a spec
to apply if a default with this name was specified. The string
@samp{%(VALUE)} in the spec will be replaced by the value of the default
everywhere it occurs.
The driver will apply these specs to its own command line between loading
default @file{specs} files and processing @code{DRIVER_SELF_SPECS}, using
the same mechanism as @code{DRIVER_SELF_SPECS}.
Do not define this macro if it does not need to do anything.
@findex CPP_SPEC
@item CPP_SPEC
A C string constant that tells the GCC driver program options to
......
gcc/gcc.c
......@@ -325,6 +325,7 @@ static char *save_string PARAMS ((const char *, int));
static void set_collect_gcc_options PARAMS ((void));
static int do_spec_1 PARAMS ((const char *, int, const char *));
static int do_spec_2 PARAMS ((const char *));
static void do_option_spec PARAMS ((const char *, const char *));
static void do_self_spec PARAMS ((const char *));
static const char *find_file PARAMS ((const char *));
static int is_directory PARAMS ((const char *, const char *, int));
......@@ -804,6 +805,19 @@ static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
static const char *const driver_self_specs[] = { DRIVER_SELF_SPECS };
#ifndef OPTION_DEFAULT_SPECS
#define OPTION_DEFAULT_SPECS { "", "" }
#endif
struct default_spec
{
const char *name;
const char *spec;
};
static const struct default_spec
option_default_specs[] = { OPTION_DEFAULT_SPECS };
struct user_specs
{
struct user_specs *next;
......@@ -4257,6 +4271,57 @@ do_spec_2 (spec)
of the switches/n_switches array. */
static void
do_option_spec (name, spec)
const char *name;
const char *spec;
{
unsigned int i, value_count, value_len;
const char *p, *q, *value;
char *tmp_spec, *tmp_spec_p;
if (configure_default_options[0].name == NULL)
return;
for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
if (strcmp (configure_default_options[i].name, name) == 0)
break;
if (i == ARRAY_SIZE (configure_default_options))
return;
value = configure_default_options[i].value;
value_len = strlen (value);
/* Compute the size of the final spec. */
value_count = 0;
p = spec;
while ((p = strstr (p, "%(VALUE)")) != NULL)
{
p ++;
value_count ++;
}
/* Replace each %(VALUE) by the specified value. */
tmp_spec = alloca (strlen (spec) + 1
+ value_count * (value_len - strlen ("%(VALUE)")));
tmp_spec_p = tmp_spec;
q = spec;
while ((p = strstr (q, "%(VALUE)")) != NULL)
{
memcpy (tmp_spec_p, q, p - q);
tmp_spec_p = tmp_spec_p + (p - q);
memcpy (tmp_spec_p, value, value_len);
tmp_spec_p += value_len;
q = p + strlen ("%(VALUE)");
}
strcpy (tmp_spec_p, q);
do_self_spec (tmp_spec);
}
/* Process the given spec string and add any new options to the end
of the switches/n_switches array. */
static void
do_self_spec (spec)
const char *spec;
{
......@@ -6036,6 +6101,12 @@ main (argc, argv)
if (access (specs_file, R_OK) == 0)
read_specs (specs_file, TRUE);
/* Process any configure-time defaults specified for the command line
options, via OPTION_DEFAULT_SPECS. */
for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
do_option_spec (option_default_specs[i].name,
option_default_specs[i].spec);
/* Process DRIVER_SELF_SPECS, adding any new options to the end
of the command line. */
......
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