Motorola XT897 >> Sailfish
build gcc 4.9.4
參考資訊：
1. signal
2. struct ustat
3. unity-car-tutorials
步驟如下：
1. 手動掛載SWAP 2GB
2. 編譯安裝coreutils(/usr/bin/install記得symlink到/usr/local/bin/install)
3. 執行如下命令
$ export GCC_VERSION="4.9.4"
$ export WORKDIR="/home/nemo/Downloads/gcc-${GCC_VERSION}"
$ export INSTALLDIR="/opt/gcc-${GCC_VERSION}"
$ rm -rf ${WORKDIR}
$ mkdir -p ${WORKDIR}
$ cd $WORKDIR
$ wget http://www.netgull.com/gcc/releases/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.bz2
$ tar -xf gcc-${GCC_VERSION}.tar.bz2
$ cd gcc-${GCC_VERSION}
$ ./contrib/download_prerequisites
$ cd ..
$ mkdir gcc-build
$ cd gcc-build
$ ../gcc-${GCC_VERSION}/configure --prefix=${INSTALLDIR} --with-gnu-as --with-gnu-ld --disable-libmudflap --enable-lto --enable-objc-gc --enable-shared --without-included-gettext --enable-nls --disable-sjlj-exceptions --enable-gnu-unique-object --enable-linker-build-id --disable-libstdcxx-pch --enable-c99 --enable-clocale=gnu --enable-libstdcxx-debug --enable-long-long --with-cloog=no --with-ppl=no --with-isl=no --disable-multilib --with-float=hard --with-mode=thumb --with-tune=cortex-a9 --with-arch=armv7-a --with-fpu=vfpv3-d16 --enable-threads=posix --enable-multiarch --enable-libstdcxx-time=yes --enable-checking=release --disable-bootstrap --enable-languages=c,c++,fortran,lto
$ make
../../../../gcc-4.9.4/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc:84:23: fatal error: sys/ustat.h: No such file or directory
#include <sys/ustat.h>
$ vim ../gcc-4.9.4/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
84 //#include <sys/ustat.h>
153 #if SANITIZER_LINUX
154 unsigned struct_rlimit_sz = sizeof(struct rlimit);
155 unsigned struct_epoll_event_sz = sizeof(struct epoll_event);
156 unsigned struct_sysinfo_sz = sizeof(struct sysinfo);
157 unsigned struct_timespec_sz = sizeof(struct timespec);
158 unsigned __user_cap_header_struct_sz =
159 sizeof(struct __user_cap_header_struct);
160 unsigned __user_cap_data_struct_sz = sizeof(struct __user_cap_data_struct);
161 unsigned struct_utimbuf_sz = sizeof(struct utimbuf);
162 unsigned struct_new_utsname_sz = sizeof(struct new_utsname);
163 unsigned struct_old_utsname_sz = sizeof(struct old_utsname);
164 unsigned struct_oldold_utsname_sz = sizeof(struct oldold_utsname);
165 unsigned struct_itimerspec_sz = sizeof(struct itimerspec);
166
167 #if defined(__aarch64__) || defined(__s390x__) || defined (__mips64) || defined(__powerpc64__) || defined(__arch64__) || defined(__sparcv9) || defined(__x86_64__)
168 #define SIZEOF_STRUCT_USTAT 32
169 #elif defined(__arm__) || defined(__i386__) || defined(__mips__) || defined(__powerpc__) || defined(__s390__)
170 #define SIZEOF_STRUCT_USTAT 20
171 #else
172 #error Unknown size of struct ustat
173 #endif
174
175 unsigned struct_ustat_sz = SIZEOF_STRUCT_USTAT;
176 #endif // SANITIZER_LINUX
$ make
../../../../gcc-4.9.4/libsanitizer/asan/asan_linux.cc:107:20: error: 'SIGSEGV' was not declared in this scope
return signum == SIGSEGV && flags()->handle_segv;
^
../../../../gcc-4.9.4/libsanitizer/asan/asan_linux.cc:108:1: warning: control reaches end of non-void function [-Wreturn-type]
}
$ vim ../gcc-4.9.4/libsanitizer/asan/asan_linux.cc
29 #include <signal.h>
$ make
$ sudo make install