crosstool-ng/config/toolchain.in

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menu "Toolchain options"
comment "General toolchain options"
config FORCE_SYSROOT
bool
default y if !OBSOLETE
select USE_SYSROOT
config USE_SYSROOT
bool
prompt "Use sysroot'ed toolchain"
default y
help
Use the 'shinny new' sysroot feature of gcc: libraries split between
prefix/target/sysroot/lib and prefix/target/sysroot/usr/lib
You definitely want to say 'Y' here. Yes you do. I know you do. Say 'Y'.
config SYSROOT_NAME
string
prompt "sysroot directory name" if ! BACKEND
depends on USE_SYSROOT
default "sysroot"
help
Enter the base name of the sysroot directory. Usually, this simply
is 'sysroot' (the default) or 'sys-root'.
You are free to enter anything here, except for spaces, and '/'
(see SYSROOT_DIR_PREFIX, below). If you leave this empty, then the
default 'sysroot' is used.
config SYSROOT_DIR_PREFIX
string
prompt "sysroot prefix dir (READ HELP)" if ! BACKEND
depends on USE_SYSROOT
default ""
help
*
* Unless you really know you need that, leave it empty!
*
This string will be interpreted as a directory component to be added
to the sysroot path, just before the actual sysroot directory.
In fact, the sysroot path is constructed as:
${CT_PREFIX_DIR}/${CT_TARGET}/${CT_SYSROOT_DIR_PREFIX}/${CT_SYSROOT_NAME}
config WANTS_STATIC_LINK
bool
config STATIC_TOOLCHAIN
bool
prompt "Build Static Toolchain"
select WANTS_STATIC_LINK
help
Build static host binaries.
If you wish to move the toolchain to another host, and you are not
confident that this host has the required versions of system libs, then
you can say 'Y' here, and all the host tools will be linked statically.
The impacted tools are:
- the cross-binutils (GNU binutils, elf2flt)
- the cross-compiler (gcc)
- the cross-debugger (gdb)
The default is 'N', to build dynamicaly-linked host binaries.
NOTE: this has no connection to whether the target libraries will be
dynamic or static. This only applies to the tools themselves.
config TOOLCHAIN_PKGVERSION
string
prompt "Toolchain ID string"
default ""
help
Specify a string that identifies your package. You may wish to include
a build number or build date. This version string will be included in
the output of gcc --version, and also in binutils, glibc, gdb and
gdbserver.
If this string is left empty, the actual package version will be:
"crosstool-NG ${CT_VERSION}"
Otherwise, it will be:
"crosstool-NG ${CT_VERSION} - ${CT_TOOLCHAIN_PKGVERSION}"
This is passed to the configure flag --with-pkgversion.
config TOOLCHAIN_BUGURL
string
prompt "Toolchain bug URL"
default ""
help
Specify the URL that users should visit if they wish to report a bug.
comment "Tuple completion and aliasing"
config TARGET_VENDOR
string
prompt "Tuple's vendor string"
depends on !LIBC_avr_libc
default "unknown"
help
Vendor part of the target tuple.
A tuple is of the form arch-vendor-kernel-system.
You can set the second part, vendor, to whatever you see fit.
Use a single word, or use underscores "_" to separate words.
Use neither dash nor space, as it breaks things.
Keep the default (unknown) if you don't know better.
config TARGET_ALIAS_SED_EXPR
string
prompt "Tuple's sed transform"
default ""
help
Normally, you'd call your toolchain components (especially gcc) by
prefixing the target tuple followed by a dash and the component name
(eg. armeb-unknown-linux-uclibc-gcc).
You can enter here a sed expression to be applied to ${CT_TARGET} to
create an alias for your toolchain.
For example, "s/${CT_TARGET_VENDOR}/foobar/" (without the double quotes)
will create the armeb-foobar-linux-uclibc alias to the above-mentioned
toolchain.
You shouldn't need to enter anything here, unless you plan to manually
call the tools (autotools-based ./configure will use the standard name).
config TARGET_ALIAS
string
prompt "Tuple's alias"
default ""
help
Normally, you'd call your toolchain components (especially gcc) by
prefixing the target tuple followed by a dash and the component name
(eg. armeb-unknown-linux-uclibc-gcc).
You can enter a shortcut here. This string will be used to create
symbolic links to the toolchain tools (eg. if you enter "foo-bar" here,
then gcc for your toolchain will also be available as "foo-bar-gcc" along
with the original name).
You shouldn't need to enter anything here, unless you plan to manually
call the tools (autotools-based ./configure will use the standard name).
comment "Toolchain type"
choice
bool
prompt "Type"
default CROSS
config NATIVE
bool
prompt "Native (NO CODE!) (EXPERIMENTAL)"
depends on EXPERIMENTAL
help
Build a native toolchain.
See: "docs/6 - Toolchain types.txt"
config CROSS
bool
prompt "Cross"
help
Build a cross-toolchain.
See: "docs/6 - Toolchain types.txt"
config CROSS_NATIVE
bool
prompt "Cross-native (NO CODE!) (EXPERIMENTAL)"
depends on EXPERIMENTAL
help
Build a cross-native toolchain.
See: "docs/6 - Toolchain types.txt"
config CANADIAN
bool
prompt "Canadian"
help
Build a canadian-toolchain.
See: "docs/6 - Toolchain types.txt"
endchoice
config TOOLCHAIN_TYPE
string
default "native" if NATIVE
default "cross" if CROSS
default "cross-native" if CROSS_NATIVE
default "canadian" if CANADIAN
comment "Build system"
config BUILD
string
prompt "| Tuple (READ HELP!)"
default ""
help
Canonical name of the machine building the toolchain.
You should leave empty, unless you really know what you're doing.
config BUILD_PREFIX
string
prompt "| Tools prefix (READ HELP!)"
default ""
help
If you have your *build system* tools in a weird location, and/or
they have an unusual prefix, enter it here.
Usually, you should leave that empty!
Eg.:
If your *build* gcc is /opt/build-tools/bin/weird-gcc then you
should enter:
/opt/build-tools/bin/weird-
If your *build* gcc is /opt/build-tools/bin/weird-gcc and
/opt/build-tools/bin is in your PATH, you should enter:
weird-
If your *build* gcc is /opt/build-tools/bin/gcc then you
should enter (do not forget to add the trailing '/'):
/opt/build-tools/bin/
config BUILD_SUFFIX
string
prompt "| Tools suffix (READ HELP!)"
default ""
help
If your *build system* tools have an unusual suffix, enter it
here.
Usually, you should leave that empty!
Eg.:
If your 'default' gcc is gcc 4.3.1, but you also have gcc-3.4.2
installed as gcc-3.4, then you should enter:
-3.4
It can happen that some of the tools have a suffix, when others
don't, eg. you can have 'gcc-3.4' and 'ar'. crosstool-NG accounts
for that by checking the tools without the suffix in case it can
not find some of the tool.
if CANADIAN
comment "Host system"
config HOST
string
prompt "| Tuple (READ HELP!)"
default ""
help
Canonical name of the machine running the toolchain.
config HOST_PREFIX
string
prompt "| Tools prefix (READ HELP!)"
default ""
help
If you have your *host system* tools in a weird location, and/or
they have an unusual prefix, enter it here.
Usually, you should leave that empty!
Eg.:
If your *host* gcc is /opt/host-tools/bin/weird-gcc then you
should enter:
/opt/host-tools/bin/weird-
If your *host* gcc is /opt/host-tools/bin/weird-gcc and
/opt/host-tools/bin is in your PATH, you should enter:
weird-
If your *host* gcc is /opt/host-tools/bin/gcc then you
should enter (do not forget to add the trailing '/'):
/opt/host-tools/bin/
config HOST_SUFFIX
string
prompt "| Tools suffix (READ HELP!)"
default ""
help
If your *host system* tools have an unusual suffix, enter it
here.
Usually, you should leave that empty!
Eg.:
If your 'default' gcc is gcc 4.3.1, but you also have gcc-3.4.2
installed as gcc-3.4, then you should enter:
-3.4
It can happen that some of the tools have a suffix, when others
don't, eg. you can have 'gcc-3.4' and 'ar'. crosstool-NG accounts
for that by checking the tools without the suffix in case it can
not find some of the tool.
endif # CANADIAN
comment "Misc options"
config TOOLCHAIN_ENABLE_NLS
bool
prompt "Enable nls"
help
Say 'Y' here to enable native language support (nls).
endmenu