crosstool-ng/config/libc.in

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# C library options
menu "C-library"
Introduce a new EXPERIMENTAL feature: BARE_METAL. This should ultimately llow to build bare-metal compilers, for targets that have no kernel and no C library. Move the C library build script to their own sub-directory; introduce an empty build script for bare-metal. Move the compiler build script to its own sub-directory. Move the kernel build script to its own sub-directory; introduce an empty build script for bare-metal. Update the ARM target tuples to enable bare-metal targets. Add two ARM bare-metal samples. Add latest Linux kernel versions. /trunk/scripts/build/kernel/none.sh | 77 6 71 0 +---- /trunk/scripts/build/cc/gcc.sh | 58 41 17 0 ++- /trunk/scripts/build/libc/none.sh | 513 9 504 0 +----------------------------- /trunk/scripts/crosstool.sh | 17 9 8 0 + /trunk/scripts/functions | 6 4 2 0 + /trunk/scripts/showSamples.sh | 6 3 3 0 /trunk/samples/arm-unknown-elf/crosstool.config | 225 225 0 0 +++++++++++++ /trunk/samples/arm-unknown-eabi/crosstool.config | 223 223 0 0 +++++++++++++ /trunk/config/kernel/linux_headers_install.in | 64 27 37 0 ++-- /trunk/config/kernel.in | 9 8 1 0 + /trunk/config/toolchain.in | 1 1 0 0 + /trunk/config/cc/gcc.in | 3 3 0 0 + /trunk/config/debug/dmalloc.in | 1 1 0 0 + /trunk/config/debug/gdb.in | 4 3 1 0 + /trunk/config/debug/strace.in | 1 1 0 0 + /trunk/config/debug/duma.in | 1 1 0 0 + /trunk/config/cc.in | 8 8 0 0 + /trunk/config/target.in | 13 13 0 0 + /trunk/config/binutils.in | 1 1 0 0 + /trunk/config/gmp_mpfr.in | 1 1 0 0 + /trunk/config/libc.in | 17 11 6 0 + /trunk/arch/arm/functions | 3 1 2 0 - 22 files changed, 600 insertions(+), 652 deletions(-)
2008-09-14 16:21:07 +00:00
config LIBC
string
config LIBC_VERSION
string
help
Enter the date of the snapshot you want to use in the form: YYYYMMDD
where YYYY is the 4-digit year, MM the 2-digit month and DD the 2-digit
day in the month.
Please note:
- glibc has snapshots done every monday, and only the last ten are kept.
- uClibc has daily snapshots, and only the last 30-or-so are kept.
So if you want to be able to re-build your toolchain later, you will
have to save your C library tarball by yourself.
source "config.gen/libc.in"
config LIBC_SUPPORT_THREADS_ANY
bool
config LIBC_SUPPORT_THREADS_NATIVE
bool
select LIBC_SUPPORT_THREADS_ANY
config LIBC_SUPPORT_THREADS_LT
bool
select LIBC_SUPPORT_THREADS_ANY
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config LIBC_SUPPORT_THREADS_POSIX
bool
select LIBC_SUPPORT_THREADS_ANY
config LIBC_SUPPORT_THREADS_NONE
bool
config LIBC_PROVIDES_CXA_ATEXIT
bool
# C libraries should provide other values
config THREADS
string
default "none" if THREADS_NONE
if ! LIBC_none
comment "Common C library options"
choice
bool
prompt "Threading implementation to use:"
default THREADS_NATIVE if LIBC_SUPPORT_THREADS_NATIVE
default THREADS_LT if LIBC_SUPPORT_THREADS_LT
default THREADS_POSIX if LIBC_SUPPORT_THREADS_POSIX
default THREADS_NONE
config THREADS_NATIVE
bool
prompt "native"
depends on LIBC_SUPPORT_THREADS_NATIVE
help
This selects the native threads implementation for the selected
system and C library.
For example, on Linux with glibc, this is NPTL; on Windows with
mingw, this is win32.
config THREADS_LT
bool
prompt "linuxthreads"
depends on LIBC_SUPPORT_THREADS_LT
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config THREADS_POSIX
bool
prompt "posix"
depends on LIBC_SUPPORT_THREADS_POSIX
config THREADS_NONE
bool
prompt "none"
depends on LIBC_SUPPORT_THREADS_NONE
endchoice
config LIBC_XLDD
bool
prompt "Install a cross ldd-like helper"
depends on SHARED_LIBS
depends on ! BARE_METAL
default y
help
Say 'Y' here if you want to have a ldd-like helper that
you can run on your build system, and that will (try to)
resolve shared libraries dependencies as if run on the
target.
Note that the cross-ldd helper is not a full replacement
for the native ldd. Please see the help, by running it
with '--help' for more explanations.
source "config.gen/libc.in.2"
endif # ! LIBC_none
endmenu