On Tue, Mar 03, 2009 at 12:10:56PM -0500, Lennart Sorensen wrote: > On Tue, Mar 03, 2009 at 11:59:41AM +1000, Greg Ungerer wrote: > > Couple of things I notice off-hand. > > > > The _start code looks completely different for the 2 cases. > > How did you configure uClibc for the gcc-4.3.2 case? > > What .config file did you use? > > I used the .config from the 0.9.27 build, with as few changes as I > could get away with to get it to build. This might of course not be > good enough. Pretty much tried to do make oldconfig. I will see if I > can grab the .config and post that for both builds. > > I have attached the config files used for uclibc 0.9.27 (with gcc > 4.1.1 and 2.6.16 headers) and for uclibc 0.9.30.1 (with gcc 4.3.3 and > 2.6.29-rc3 headers). one thing I am not sure of is, what format to select > for m68knommu in 0.9.30. In 0.9.27 there was no choice, no there are > 4 choices. FDPIC doesn't compile, flat seems to, so that's what I tried. > > > Compare the disassembly of <puts> in both cases. Something is > > screwy with the one generated by gcc-4.3.2: > > > > 000000d8 <puts>: > > d8: 4e56 fff0 linkw %fp,#-16 > > dc: 48e7 044347 > > de: 2030 2679 movel %a0@(0000000000000079,%d2:w:8),%d0 > > e2: 0000 00 > > e4: 165c 013134 > > e6: 242b 0024 movel %a3@(36),%d2 > > ... > > > > Why the undecoded words? > > The disassemble in the gcc-4.1.1 case looks fine. > > No idea what that even means in this case. I am not used to assembly > instructions being that long when decoded.
Perhaps actually attaching the files would help. -- Len Sorensen
# # Automatically generated make config: don't edit # # TARGET_alpha is not set # TARGET_arm 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_i386 is not set # TARGET_i960 is not set TARGET_m68k=y # 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_sparc is not set # TARGET_v850 is not set # # Target Architecture Features and Options # HAVE_ELF=y TARGET_ARCH="m68k" ARCH_SUPPORTS_BIG_ENDIAN=y UCLIBC_HAS_SOFT_FLOAT=y # ARCH_LITTLE_ENDIAN is not set ARCH_BIG_ENDIAN=y ARCH_HAS_NO_MMU=y UCLIBC_HAS_FLOATS=y # HAS_FPU is not set DO_C99_MATH=y WARNINGS="-Wall" KERNEL_SOURCE="/tmp/official-uclinux/ori/linux-2.6.16" UCLIBC_UCLINUX_BROKEN_MUNMAP=y EXCLUDE_BRK=y C_SYMBOL_PREFIX="" HAVE_DOT_CONFIG=y # # General Library Settings # # HAVE_NO_PIC is not set # DOPIC is not set HAVE_NO_SHARED=y ARCH_HAS_NO_LDSO=y UCLIBC_CTOR_DTOR=y # HAS_NO_THREADS is not set UCLIBC_HAS_THREADS=y # PTHREADS_DEBUG_SUPPORT is not set # UCLIBC_HAS_LFS is not set MALLOC=y # MALLOC_SIMPLE is not set # MALLOC_STANDARD is not set # MALLOC_GLIBC_COMPAT is not set UCLIBC_DYNAMIC_ATEXIT=y COMPAT_ATEXIT=y # HAS_SHADOW is not set # UNIX98PTY_ONLY is not set ASSUME_DEVPTS=y # UCLIBC_HAS_TM_EXTENSIONS is not set # UCLIBC_HAS_TZ_CACHING is not set UCLIBC_HAS_TZ_FILE=y UCLIBC_HAS_TZ_FILE_READ_MANY=y UCLIBC_TZ_FILE_PATH="/etc/TZ" # # Networking Support # # UCLIBC_HAS_IPV6 is not set # UCLIBC_HAS_RPC 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 is not set # UCLIBC_HAS_LOCALE is not set # UCLIBC_HAS_HEXADECIMAL_FLOATS is not set # UCLIBC_HAS_GLIBC_CUSTOM_PRINTF is not set # USE_OLD_VFPRINTF is not set 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=y # 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 is not set # 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_GETC_MACRO=y UCLIBC_HAS_STDIO_PUTC_MACRO=y UCLIBC_HAS_STDIO_AUTO_RW_TRANSITION=y # 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=y UCLIBC_HAS_SIGNUM_MESSAGES=y # UCLIBC_HAS_SYS_SIGLIST is not set UCLIBC_HAS_GNU_GETOPT=y # # Big and Tall # UCLIBC_HAS_REGEX=y # UCLIBC_HAS_WORDEXP is not set # UCLIBC_HAS_FTW is not set UCLIBC_HAS_GLOB=y # # Library Installation Options # RUNTIME_PREFIX="/usr/$(TARGET_ARCH)-linux-uclibc/" DEVEL_PREFIX="/usr/$(TARGET_ARCH)-linux-uclibc" # # uClibc security related options # # UCLIBC_SECURITY is not set # # uClibc development/debugging options # # DODEBUG is not set # DOASSERTS is not set # UCLIBC_MALLOC_DEBUGGING is not set # UCLIBC_MJN3_ONLY is not set
# # Automatically generated make config: don't edit # Version: 0.9.30.1 # Tue Mar 3 16:16:28 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 is not set # TARGET_i960 is not set # TARGET_ia64 is not set TARGET_m68k=y # 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="m68k" FORCE_OPTIONS_FOR_ARCH=y TARGET_SUBARCH="" # UCLIBC_FORMAT_ELF is not set UCLIBC_FORMAT_FDPIC_ELF=y # UCLIBC_FORMAT_FLAT is not set # UCLIBC_FORMAT_FLAT_SEP_DATA is not set # UCLIBC_FORMAT_SHARED_FLAT is not set ARCH_BIG_ENDIAN=y # # Using Big Endian # # ARCH_HAS_MMU is not set UCLIBC_HAS_FLOATS=y # UCLIBC_HAS_FPU is not set UCLIBC_HAS_SOFT_FLOAT=y DO_C99_MATH=y # UCLIBC_HAS_FENV is not set UCLIBC_HAS_LONG_DOUBLE_MATH=y KERNEL_HEADERS="/tmp/official-uclinux/linux-2.6-headers/include" UCLIBC_UCLINUX_BROKEN_MUNMAP=y EXCLUDE_BRK=y 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=y LDSO_CACHE_SUPPORT=y # LDSO_PRELOAD_FILE_SUPPORT is not set LDSO_BASE_FILENAME="ld.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_SYSLOG=y # UCLIBC_HAS_LFS is not set MALLOC=y # MALLOC_SIMPLE is not set # MALLOC_STANDARD is not set # MALLOC_GLIBC_COMPAT is not set UCLIBC_DYNAMIC_ATEXIT=y COMPAT_ATEXIT=y # UCLIBC_SUSV3_LEGACY is not set # UCLIBC_SUSV3_LEGACY_MACROS is not set # 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 is not set UCLIBC_HAS_GETPT=y # UCLIBC_HAS_TM_EXTENSIONS is not set # UCLIBC_HAS_TZ_CACHING is not set 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=y UCLIBC_LINUX_SPECIFIC=y UCLIBC_HAS_GNU_ERROR=y UCLIBC_BSD_SPECIFIC=y UCLIBC_HAS_BSD_ERR=y # UCLIBC_HAS_OBSOLETE_BSD_SIGNAL is not set # UCLIBC_HAS_OBSOLETE_SYSV_SIGNAL is not set # UCLIBC_NTP_LEGACY is not set # UCLIBC_SV4_DEPRECATED is not set 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 is not set # UCLIBC_HAS_RPC is not set # UCLIBC_USE_NETLINK is not set # UCLIBC_HAS_BSD_RES_CLOSE 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 is not set # UCLIBC_HAS_LOCALE is not set # UCLIBC_HAS_HEXADECIMAL_FLOATS is not set # UCLIBC_HAS_GLIBC_CUSTOM_PRINTF is not set # USE_OLD_VFPRINTF is not set 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=y # 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 is not set # 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_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=y 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_FTW is not set UCLIBC_HAS_GLOB=y # UCLIBC_HAS_GNU_GLOB is not set # # Library Installation Options # SHARED_LIB_LOADER_PREFIX="$(RUNTIME_PREFIX)lib" RUNTIME_PREFIX="/usr/$(TARGET_ARCH)-linux-uclibc/" DEVEL_PREFIX="/usr/$(TARGET_ARCH)-linux-uclibc" # # Security options # # 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=y # 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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