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| author | Daniel Jacobowitz <drow@mvista.com> | 2003-06-04 17:50:44 +0000 |
|---|---|---|
| committer | Daniel Jacobowitz <drow@gcc.gnu.org> | 2003-06-04 17:50:44 +0000 |
| commit | 7816bea0e23b878016e30c39f132826a5275ecc1 (patch) | |
| tree | 0761aad7dc475440590406dcf0a0052331286e05 /gcc/doc/tm.texi | |
| parent | 83079d893cac8e85e0d9a5f7531cccae64f7665f (diff) | |
| download | gcc-7816bea0e23b878016e30c39f132826a5275ecc1.zip gcc-7816bea0e23b878016e30c39f132826a5275ecc1.tar.gz gcc-7816bea0e23b878016e30c39f132826a5275ecc1.tar.bz2 | |
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
Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index ba8e3b1..88f2085 100644 --- a/gcc/doc/tm.texi +++ b/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 |