bool "m68k"
config TARGET_microblaze
- bool "microblaze (BROKEN)"
+ bool "microblaze"
config TARGET_mips
bool "mips"
default "e500" if CONFIG_E500
default "classic" if CONFIG_CLASSIC
default "sh4" if CONFIG_SH4
+ default "" if CONFIG_GENERIC_386 || CONFIG_386
+ default "i486" if CONFIG_486
+ default "i586" if CONFIG_586 || CONFIG_586MMX
+ default "i686" if TARGET_ARCH = "i386"
default ""
source "extra/Configs/Config.in.arch"
After updating this file, it is necessary to run 'ldconfig' to update
the /etc/ld.so.cache shared library loader cache file.
+config LDSO_PRELOAD_ENV_SUPPORT
+ bool "Enable library loader LD_PRELOAD environment"
+ depends on HAVE_SHARED
+ default y
+ help
+ Enable this to make use of LD_PRELOAD environment variable.
+ A whitespace-separated list of additional, user-specified, ELF shared
+ libraries to be loaded before all others. This can be used to
+ selectively override functions in other shared libraries. For
+ set-user-ID/set-group-ID ELF binaries, only libraries in the standard
+ search directories that are also set-user-ID will be loaded.
+
config LDSO_PRELOAD_FILE_SUPPORT
bool "Enable library loader preload file (ld.so.preload)"
depends on HAVE_SHARED
choice
prompt "Thread support"
+ #default UCLIBC_HAS_THREADS_NATIVE if (TARGET_alpha || TARGET_arm || TARGET_i386 || TARGET_mips || TARGET_powerpc || TARGET_sh || TARGET_sh64)
default HAS_NO_THREADS
help
If you want to compile uClibc with pthread support, then answer Y.
the latest code from glibc, so it may be the only choice for the
newer ports (like alpha/amd64/64bit arches and hppa).
+config UCLIBC_HAS_THREADS_NATIVE
+ bool "Native POSIX Threading (NPTL)"
+ select UCLIBC_HAS_TLS
+ select UCLIBC_HAS_STDIO_FUTEXES
+ # NPTL local:
+ select EXTRA_WARNINGS
+ # i386 has no lowlevellock support (yet) as opposed to i486 onward
+ depends on !CONFIG_386
+ help
+ If you want to compile uClibc with NPTL support, then answer Y.
+
+ IMPORTANT NOTE! NPTL requires a Linux 2.6 kernel, binutils
+ at least version 2.16 and GCC with at least version 4.1.0. NPTL
+ will not work with older versions of any above sources. If you
+ ignore any of these guidelines, you do so at your own risk. Do
+ not ask for help on any of the development mailing lists.
+
+ !!!! WARNING !!!! BIG FAT WARNING !!!! REALLY BIG FAT WARNING !!!!
+
+ This is experimental code and at times it may not even build and
+ even if it does it might decide to do random damage. This code is
+ potentially hazardous to your health and sanity. It will remain
+ that way until further notice at which point this notice will
+ disappear. Thank you for your support and for not smoking.
+
endchoice
config UCLIBC_HAS_THREADS
def_bool y if !HAS_NO_THREADS
+config UCLIBC_HAS_TLS
+ bool "Thread-Local Storage"
+ depends on UCLIBC_HAS_THREADS_NATIVE
+ default n
+ help
+ If you want to enable TLS support then answer Y.
+ This is fast an efficient way to store per-thread local data
+ which is not on stack. It needs __thread support enabled in
+ gcc.
+
config PTHREADS_DEBUG_SUPPORT
bool "Build pthreads debugging support"
default n
Most people will use the default of '/etc/TZ'.
+config UCLIBC_FALLBACK_TO_ETC_LOCALTIME
+ bool "Use /etc/localtime as a fallback"
+ depends on UCLIBC_HAS_TZ_FILE
+ default y
+ help
+ Answer Y to try to use /etc/localtime file.
+ On glibc systems this file (if it is in TZif2 format)
+ contains timezone string at the end.
+
+ Most people will answer Y.
+
endmenu
menu "Advanced Library Settings"
Most people will answer Y.
+config UCLIBC_HAS_STDIO_FUTEXES
+ bool "Use futexes for multithreaded I/O locking"
+ default n
+ depends on UCLIBC_HAS_THREADS_NATIVE
+ help
+ If you want to compile uClibc to use futexes for low-level
+ I/O locking, answer Y. Otherwise, answer N.
+
config UCLIBC_HAS_GETOPT_LONG
bool "Support getopt_long/getopt_long_only"
depends on !UCLIBC_HAS_GNU_GETOPT
Most people will answer N.
+config UCLIBC_HAS_UTMPX
+ bool "utmpx based support for tracking login/logouts to/from the system"
+ default n
+ help
+ Answer y to enable support for accessing user accounting database.
+ It can be used to track all login/logout to the system.
+
+ If unsure, just answer N.
+
endmenu
Because this increases the size of malloc appreciably (due to strings
etc), you should say N unless you need to debug a malloc problem.
+config UCLIBC_HAS_BACKTRACE
+ bool "Add support for application self-debugging"
+ depends on HAVE_SHARED && TARGET_sh
+ default n
+ help
+ Answer Y here to compile support for application self-debugging, by adding
+ a new shared object "libubacktrace.so" that provides the following new
+ functions:
+ backtrace, backtrace_symbols, backtrace_symbols_fd
+
+ The backtrace functionality is currently supported on SH platform, and it
+ based on dwarf2 informations to properly work, so any application that
+ want to use backtrace needs to be built with -fexceptions flag.
+
+ The symbol names may be unavailable without the use of special linker
+ options. For systems using the GNU linker, it is necessary to use the
+ -rdynamic linker option too. Note that names of "static" functions are not
+ exposed, and won't be available in the backtrace.
+
config WARNINGS
string "Compiler Warnings"
default "-Wall"
projects / l4.git / blobdiff