关于工具链的编译uclibc-0.9.32/gcc

使用之前弄的脚本编译工具链其实还是比较轻松的，脚本也是比较稳定的，不过重点在于配置上，包括target名称的选择，uclibc的配置

一直困扰的nfs挂载不正常的问题最终发现还是uclibc配置不对，另外，对于thread的支持，一般需要使用nptl，然后如果要用gdb的话，gdbserver的编译必须要在uclibc里面启用thread debug，要不然会缺少东西：

 #error No uintptr_t available; your C library is too old.

接着还会说thread_db.h 造成的某结构体的成员th不存在。

新的uclibc 0.9.32编译时需要链接libgcc_eh库文件，这个库文件在static阶段是不编译的，如果要让编译，需要硬性打patch实现。

这里贴一个正确的uclibc配置

# # Automatically generated make config: don't edit # Version: 0.9.32 # Wed Nov 23 14:53:07 2011 # # TARGET_alpha is not set TARGET_arm=y # TARGET_avr32 is not set # TARGET_bfin is not set # TARGET_cris is not set # TARGET_e1 is not set # TARGET_frv is not set # TARGET_h8300 is not set # TARGET_hppa is not set # TARGET_i386 is not set # TARGET_i960 is not set # TARGET_ia64 is not set # TARGET_m68k is not set # TARGET_microblaze is not set # TARGET_mips is not set # TARGET_nios is not set # TARGET_nios2 is not set # TARGET_powerpc is not set # TARGET_sh is not set # TARGET_sh64 is not set # TARGET_sparc is not set # TARGET_v850 is not set # TARGET_vax is not set # TARGET_x86_64 is not set # TARGET_xtensa is not set # TARGET_c6x is not set # # Target Architecture Features and Options # TARGET_ARCH="arm" FORCE_OPTIONS_FOR_ARCH=y # CONFIG_ARM_OABI is not set CONFIG_ARM_EABI=y USE_BX=y # CONFIG_GENERIC_ARM is not set # CONFIG_ARM610 is not set # CONFIG_ARM710 is not set # CONFIG_ARM7TDMI is not set # CONFIG_ARM720T is not set # CONFIG_ARM920T is not set # CONFIG_ARM922T is not set CONFIG_ARM926T=y # CONFIG_ARM10T is not set # CONFIG_ARM1136JF_S is not set # CONFIG_ARM1176JZ_S is not set # CONFIG_ARM1176JZF_S is not set # CONFIG_ARM_CORTEX_M3 is not set # CONFIG_ARM_CORTEX_M1 is not set # CONFIG_ARM_SA110 is not set # CONFIG_ARM_SA1100 is not set # CONFIG_ARM_XSCALE is not set # CONFIG_ARM_IWMMXT is not set TARGET_SUBARCH="" # # Using ELF file format # ARCH_ANY_ENDIAN=y ARCH_LITTLE_ENDIAN=y # ARCH_WANTS_BIG_ENDIAN is not set ARCH_WANTS_LITTLE_ENDIAN=y ARCH_HAS_MMU=y ARCH_USE_MMU=y UCLIBC_HAS_FLOATS=y # UCLIBC_HAS_FPU is not set UCLIBC_HAS_SOFT_FLOAT=y DO_C99_MATH=y # DO_XSI_MATH is not set UCLIBC_HAS_FENV=y KERNEL_HEADERS="/home/dbh/workspace/linux-dev/nmru/prjhome/build-2011-11-23-uClibc/target_root/usr/include" HAVE_DOT_CONFIG=y # # General Library Settings # # HAVE_NO_PIC is not set DOPIC=y # ARCH_HAS_NO_SHARED is not set # ARCH_HAS_NO_LDSO is not set HAVE_SHARED=y # FORCE_SHAREABLE_TEXT_SEGMENTS is not set # LDSO_LDD_SUPPORT is not set LDSO_CACHE_SUPPORT=y # LDSO_PRELOAD_ENV_SUPPORT is not set # LDSO_PRELOAD_FILE_SUPPORT is not set LDSO_BASE_FILENAME="ld-uClibc.so" UCLIBC_STATIC_LDCONFIG=y LDSO_RUNPATH=y LDSO_SEARCH_INTERP_PATH=y UCLIBC_CTOR_DTOR=y # LDSO_GNU_HASH_SUPPORT is not set # HAS_NO_THREADS is not set # LINUXTHREADS_OLD is not set # LINUXTHREADS_NEW is not set UCLIBC_HAS_THREADS_NATIVE=y UCLIBC_HAS_THREADS=y UCLIBC_HAS_TLS=y PTHREADS_DEBUG_SUPPORT=y UCLIBC_HAS_SYSLOG=y UCLIBC_HAS_LFS=y # MALLOC is not set # MALLOC_SIMPLE is not set MALLOC_STANDARD=y MALLOC_GLIBC_COMPAT=y UCLIBC_DYNAMIC_ATEXIT=y # COMPAT_ATEXIT is not set UCLIBC_SUSV3_LEGACY=y UCLIBC_SUSV3_LEGACY_MACROS=y UCLIBC_SUSV4_LEGACY=y # UCLIBC_STRICT_HEADERS is not set # UCLIBC_HAS_STUBS is not set UCLIBC_HAS_SHADOW=y UCLIBC_HAS_PROGRAM_INVOCATION_NAME=y UCLIBC_HAS___PROGNAME=y UCLIBC_HAS_PTY=y ASSUME_DEVPTS=y UNIX98PTY_ONLY=y # UCLIBC_HAS_GETPT is not set UCLIBC_HAS_LIBUTIL=y UCLIBC_HAS_TM_EXTENSIONS=y UCLIBC_HAS_TZ_CACHING=y UCLIBC_HAS_TZ_FILE=y UCLIBC_HAS_TZ_FILE_READ_MANY=y UCLIBC_TZ_FILE_PATH="/etc/TZ" # UCLIBC_FALLBACK_TO_ETC_LOCALTIME is not set # # Advanced Library Settings # UCLIBC_PWD_BUFFER_SIZE=256 UCLIBC_GRP_BUFFER_SIZE=256 # # Support various families of functions # # UCLIBC_LINUX_MODULE_24 is not set UCLIBC_LINUX_SPECIFIC=y UCLIBC_HAS_GNU_ERROR=y UCLIBC_BSD_SPECIFIC=y UCLIBC_HAS_BSD_ERR=y UCLIBC_HAS_OBSOLETE_BSD_SIGNAL=y UCLIBC_HAS_OBSOLETE_SYSV_SIGNAL=y UCLIBC_NTP_LEGACY=y UCLIBC_SV4_DEPRECATED=y UCLIBC_HAS_REALTIME=y UCLIBC_HAS_ADVANCED_REALTIME=y UCLIBC_HAS_EPOLL=y UCLIBC_HAS_XATTR=y UCLIBC_HAS_PROFILING=y UCLIBC_HAS_CRYPT_IMPL=y UCLIBC_HAS_CRYPT=y UCLIBC_HAS_NETWORK_SUPPORT=y UCLIBC_HAS_SOCKET=y UCLIBC_HAS_IPV4=y UCLIBC_HAS_IPV6=y UCLIBC_HAS_RPC=y UCLIBC_HAS_FULL_RPC=y UCLIBC_HAS_REENTRANT_RPC=y # UCLIBC_USE_NETLINK is not set # UCLIBC_HAS_BSD_RES_CLOSE is not set # UCLIBC_HAS_COMPAT_RES_STATE is not set # UCLIBC_HAS_EXTRA_COMPAT_RES_STATE is not set UCLIBC_HAS_LIBRESOLV_STUB=y UCLIBC_HAS_LIBNSL_STUB=y # # String and Stdio Support # UCLIBC_HAS_STRING_GENERIC_OPT=y UCLIBC_HAS_STRING_ARCH_OPT=y UCLIBC_HAS_CTYPE_TABLES=y UCLIBC_HAS_CTYPE_SIGNED=y UCLIBC_HAS_CTYPE_UNSAFE=y # UCLIBC_HAS_CTYPE_CHECKED is not set # UCLIBC_HAS_CTYPE_ENFORCED is not set UCLIBC_HAS_WCHAR=y # UCLIBC_HAS_LOCALE is not set # UCLIBC_HAS_HEXADECIMAL_FLOATS is not set UCLIBC_HAS_GLIBC_CUSTOM_PRINTF=y UCLIBC_PRINTF_SCANF_POSITIONAL_ARGS=9 # UCLIBC_HAS_SCANF_GLIBC_A_FLAG is not set # UCLIBC_HAS_STDIO_BUFSIZ_NONE is not set # UCLIBC_HAS_STDIO_BUFSIZ_256 is not set # UCLIBC_HAS_STDIO_BUFSIZ_512 is not set # UCLIBC_HAS_STDIO_BUFSIZ_1024 is not set # UCLIBC_HAS_STDIO_BUFSIZ_2048 is not set UCLIBC_HAS_STDIO_BUFSIZ_4096=y # UCLIBC_HAS_STDIO_BUFSIZ_8192 is not set UCLIBC_HAS_STDIO_BUILTIN_BUFFER_NONE=y # UCLIBC_HAS_STDIO_BUILTIN_BUFFER_4 is not set # UCLIBC_HAS_STDIO_BUILTIN_BUFFER_8 is not set # UCLIBC_HAS_STDIO_SHUTDOWN_ON_ABORT is not set UCLIBC_HAS_STDIO_GETC_MACRO=y UCLIBC_HAS_STDIO_PUTC_MACRO=y UCLIBC_HAS_STDIO_AUTO_RW_TRANSITION=y # UCLIBC_HAS_FOPEN_LARGEFILE_MODE is not set # UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE is not set # UCLIBC_HAS_GLIBC_CUSTOM_STREAMS is not set UCLIBC_HAS_PRINTF_M_SPEC=y UCLIBC_HAS_ERRNO_MESSAGES=y # UCLIBC_HAS_SYS_ERRLIST is not set UCLIBC_HAS_SIGNUM_MESSAGES=y # UCLIBC_HAS_SYS_SIGLIST is not set UCLIBC_HAS_GNU_GETOPT=y UCLIBC_HAS_STDIO_FUTEXES=y UCLIBC_HAS_GNU_GETSUBOPT=y # # Big and Tall # UCLIBC_HAS_REGEX=y UCLIBC_HAS_REGEX_OLD=y UCLIBC_HAS_FNMATCH=y UCLIBC_HAS_FNMATCH_OLD=y # UCLIBC_HAS_WORDEXP is not set # UCLIBC_HAS_NFTW is not set # UCLIBC_HAS_FTW is not set # UCLIBC_HAS_FTS is not set UCLIBC_HAS_GLOB=y UCLIBC_HAS_GNU_GLOB=y # UCLIBC_HAS_UTMPX is not set # # Library Installation Options # RUNTIME_PREFIX="/" DEVEL_PREFIX="/usr" MULTILIB_DIR="lib" # HARDWIRED_ABSPATH is not set # # Security options # # UCLIBC_BUILD_PIE is not set # UCLIBC_HAS_ARC4RANDOM is not set # HAVE_NO_SSP is not set # UCLIBC_HAS_SSP is not set UCLIBC_BUILD_RELRO=y # UCLIBC_BUILD_NOW is not set UCLIBC_BUILD_NOEXECSTACK=y # # uClibc development/debugging options # CROSS_COMPILER_PREFIX="" UCLIBC_EXTRA_CFLAGS="" # DODEBUG is not set # DOSTRIP is not set # DOASSERTS is not set # SUPPORT_LD_DEBUG is not set # SUPPORT_LD_DEBUG_EARLY is not set # UCLIBC_MALLOC_DEBUGGING is not set # UCLIBC_HAS_BACKTRACE is not set WARNINGS="-Wall" EXTRA_WARNINGS=y # DOMULTI is not set # UCLIBC_MJN3_ONLY is not set