I built for i686, using a .config that works fine for 0.9.30.1 (plus one extra symbol to un-deprecate stuff busybox defconfig won't build without), and no program actually works linked against the result:
> ./hello-static > Hello world! > Segmentation fault > ./busybox ls -l > ./busybox ls > Segmentation fault Those are statically linked against uClibc with current -git and attached .config. (Dynamic doesn't seem to work either, but that's fiddlier to test outside of a chroot.) I bisected the problem to: land...@driftwood:~/uclibc/git$ git bisect bad e0ac4efbdb498319f03a2a95d75d061ab6c68491 is first bad commit commit e0ac4efbdb498319f03a2a95d75d061ab6c68491 Author: Mike Frysinger <[email protected]> Date: Thu Oct 22 01:05:28 2009 -0400 libc: add hidden calls to pthread cleanup funcs A lot of libc code calls the pthread cleanup funcs implicitly (for stdio) which currently goes through the PLT. Since we already have forwarding symbols for these funcs, it's safe to declare the internal libc usage hidden as a loaded libpthread will have the real symbols found. Signed-off-by: Mike Frysinger <[email protected]> I confirmed that reversing that patch fixes the problem. Rob -- Latency is more important than throughput. It's that simple. - Linus Torvalds
# # Automatically generated make config: don't edit # Version: 0.9.30-git # Wed Nov 11 15:22:59 2009 # # TARGET_alpha is not set # TARGET_arm is not set # 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=y # 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 Architecture Features and Options # TARGET_ARCH="i386" FORCE_OPTIONS_FOR_ARCH=y # CONFIG_GENERIC_386 is not set # CONFIG_386 is not set # CONFIG_486 is not set # CONFIG_586 is not set # CONFIG_586MMX is not set # CONFIG_686 is not set # CONFIG_PENTIUMII is not set CONFIG_PENTIUMIII=y # CONFIG_PENTIUM4 is not set # CONFIG_K6 is not set # CONFIG_K7 is not set # CONFIG_ELAN is not set # CONFIG_CRUSOE is not set # CONFIG_WINCHIPC6 is not set # CONFIG_WINCHIP2 is not set # CONFIG_CYRIXIII is not set # CONFIG_NEHEMIAH is not set TARGET_SUBARCH="" # # Using ELF file format # ARCH_LITTLE_ENDIAN=y # # Using Little Endian # ARCH_HAS_MMU=y ARCH_USE_MMU=y UCLIBC_HAS_FLOATS=y UCLIBC_HAS_FPU=y DO_C99_MATH=y UCLIBC_HAS_FENV=y # UCLIBC_HAS_LONG_DOUBLE_MATH is not set KERNEL_HEADERS="/usr/include" HAVE_DOT_CONFIG=y # # General Library Settings # # HAVE_NO_PIC is not set # DOPIC is not set # 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_FILE_SUPPORT is not set LDSO_BASE_FILENAME="ld-uClibc.so" UCLIBC_STATIC_LDCONFIG=y LDSO_RUNPATH=y UCLIBC_CTOR_DTOR=y # LDSO_GNU_HASH_SUPPORT is not set # HAS_NO_THREADS is not set UCLIBC_HAS_THREADS=y # PTHREADS_DEBUG_SUPPORT is not set LINUXTHREADS_OLD=y # UCLIBC_HAS_THREADS_NATIVE is not set 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_HAS_STUBS is not set UCLIBC_HAS_SHADOW=y # UCLIBC_HAS_PROGRAM_INVOCATION_NAME is not set UCLIBC_HAS_PTY=y ASSUME_DEVPTS=y UNIX98PTY_ONLY=y # UCLIBC_HAS_GETPT is not set 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" # # 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_RESOLV_STUB is not set # # 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_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_GLOB=y UCLIBC_HAS_GNU_GLOB=y # # Library Installation Options # SHARED_LIB_LOADER_PREFIX="$(RUNTIME_PREFIX)lib" RUNTIME_PREFIX="/usr/$(TARGET_ARCH)-linux-uclibc/" DEVEL_PREFIX="/usr/$(TARGET_ARCH)-linux-uclibc/usr/" # 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 # DODEBUG_PT 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 WARNINGS="-Wall" # EXTRA_WARNINGS is not set # DOMULTI is not set # UCLIBC_MJN3_ONLY is not set
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