Im going to install arm-linux-gcc 4.2.2-eabi to ubuntu, but I got this error when i try to compile the source code:
root@zanget:/home/4.2.2-eabi/usr/bin# ./arm-linux-gcc arm-linux-gcc: No such file or directory

root@zanget:/home/4.2.2-eabi/usr/bin# file ./arm-linux-gcc ./arm-linux-gcc: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked

root@zanget:/home/4.2.2-eabi/usr/bin# ls -al drwxrwxr-x 2 root root 4096 2010-08-25 18:27 . drwxrwxr-x 12 root root 4096 2007-10-12 09:32 .. lrwxrwxrwx 1 root root 35 2010-08-25 18:18 arm-linux-addr2line -> arm-unknown-linux-gnueabi-addr2line lrwxrwxrwx 1 root root 28 2010-08-25 18:18 arm-linux-ar -> arm-unknown-linux-gnueabi-ar lrwxrwxrwx 1 root root 28 2010-08-25 18:18 arm-linux-as -> arm-unknown-linux-gnueabi-as lrwxrwxrwx 1 root root 6 2010-08-25 18:18 arm-linux-c++ -> ccache lrwxrwxrwx 1 root root 6 2010-08-25 18:18 arm-linux-cc -> ccache lrwxrwxrwx 1 root root 33 2010-08-25 18:18 arm-linux-c++filt -> arm-unknown-linux-gnueabi-c++filt lrwxrwxrwx 1 root root 29 2010-08-25 18:18 arm-linux-cpp -> arm-unknown-linux-gnueabi-cpp lrwxrwxrwx 1 root root 6 2010-08-25 18:18 arm-linux-g++ -> ccache lrwxrwxrwx 1 root root 8 2010-08-25 18:27 arm-linux-gcc -> ./ccache //...

when I try to use hard link here
root@zanget:/home/4.2.2-eabi/usr/bin# rm arm-linux-gcc root@zanget:/home/4.2.2-eabi/usr/bin# ln ./ccache ./arm-linux-gcc root@zanget:/home/4.2.2-eabi/usr/bin# ./arm-linux-gcc arm-linux-cc: No such file or directory

root@zanget:/home/4.2.2-eabi/usr/bin# ./ccache ccache, a compiler cache. Version 2.4 Copyright Andrew Tridgell, 2002 Usage: ccache [options] ccache compiler [compile options] compiler [compile options] (via symbolic link) Options: -s show statistics summary -z zero statistics -c run a cache cleanup -C clear the cache completely -F <maxfiles> set maximum files in cache -M <maxsize> set maximum size of cache (use G, M or K) -h this help page -V print version number

root@zanget:/home/4.2.2-eabi/usr/bin# ldd ccache linux-gate.so.1 => (0xb77b2000) libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0xb7640000) /lib/ld-linux.so.2 (0xb77b3000) root@zanget:/home/4.2.2-eabi/usr/bin# ls /lib/tls/i686/cmov/libc.so.6 /lib/tls/i686/cmov/libc.so.6 root@zanget:/home/4.2.2-eabi/usr/bin# ls /lib/ld-linux.so.2 /lib/ld-linux.so.2

root@zanget:/home/4.2.2-eabi/usr/bin# strace ./arm-linux-gcc execve("./arm-linux-gcc", ["./arm-linux-gcc"], [/* 20 vars */]) = 0 brk(0) = 0x9136000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7818000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=51701, ...}) = 0 access("/usr/local/arm/4.2.2-eabi//usr/bin-ccache/arm-linux-gcc", X_OK) = -1 ENOENT (No such file or directory) open("/root/.ccache_4.2.2/stats", O_RDWR) = 4 fcntl64(4, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=0, len=1}) = 0 read(4, "0 0 0 0 0 0 134 0 0 0 0 0 0 0 625"..., 1023) = 51 lseek(4, 0, SEEK_SET) = 0 write(4, "0 0 0 0 0 0 135 0 0 0 0 0 0 0 625"..., 51) = 51 close(4) = 0 dup(2) = 4 fcntl64(4, F_GETFL) = 0x8002 (flags O_RDWR|O_LARGEFILE) fstat64(4, {st_mode=S_IFCHR|0600, st_rdev=makedev(136, 0), ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7817000 _llseek(4, 0, 0xbf816d84, SEEK_CUR) = -1 ESPIPE (Illegal seek) write(4, "arm-linux-gcc: No such file or di"..., 41arm-linux-gcc: No such file or directory ) = 41 close(4) = 0 munmap(0xb7817000, 4096) = 0 exit_group(1) = ? mmap2(NULL, 51701, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb780b000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/tls/i686/cmov/libc.so.6", O_RDONLY) = 3 read(3, "/177ELF/1/1/1/0/0/0/0/0/0/0/0/0/3/0/3/0/1/0/0/0/320h/1/0004/0/0/0/344"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1442180, ...}) = 0 mmap2(NULL, 1451632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb76a8000 mprotect(0xb7804000, 4096, PROT_NONE) = 0 mmap2(0xb7805000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15c) = 0xb7805000 mmap2(0xb7808000, 9840, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7808000 close(3) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb76a7000 set_thread_area({entry_number:-1 -> 6, base_addr:0xb76a76c0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 open("/dev/urandom", O_RDONLY) = 3 read(3, "9/347:"..., 3) = 3 close(3) = 0 mprotect(0xb7805000, 8192, PROT_READ) = 0 mprotect(0xb7837000, 4096, PROT_READ) = 0 munmap(0xb780b000, 51701) = 0 brk(0) = 0x9136000 brk(0x9157000) = 0x9157000 dup(2) = 3 stat64("/root/.ccache_4.2.2", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 access("/usr/local/arm/4.2.2-eabi//usr/bin-ccache/arm-linux-gcc", X_OK) = -1 ENOENT

I found it was a bug of ubuntu :
/etc/ld.so.nohwcap missing

ouch /etc/ld.so.nohwcap touch /etc/ld.so.preload

root@zanget:/home/4.2.2-eabi/usr/bin# strace ./arm-linux-gcc execve("./arm-linux-gcc", ["./arm-linux-gcc"], [/* 20 vars */]) = 0 brk(0) = 0x8380000 access("/etc/ld.so.nohwcap", F_OK) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb778c000 access("/etc/ld.so.preload", R_OK) = 0 open("/etc/ld.so.preload", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 close(3) = 0 open("/etc/ld.so.cache", O_RDONLY) = 3 stat64("/root/.ccache_4.2.2", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 access("/usr/local/arm/4.2.2-eabi//usr/bin-ccache/arm-linux-gcc", X_OK) = -1 ENOENT (No such file or directory) open("/root/.ccache_4.2.2/stats", O_RDWR) = 4 fcntl64(4, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=0, len=1}) = 0 read(4, "0 0 0 0 0 0 139 0 0 0 0 0 0 0 625"..., 1023) = 51 lseek(4, 0, SEEK_SET) = 0 write(4, "0 0 0 0 0 0 140 0 0 0 0 0 0 0 625"..., 51) = 51 close(4) = 0 dup(2) = 4 fcntl64(4, F_GETFL) = 0x8002 (flags O_RDWR|O_LARGEFILE) fstat64(4, {st_mode=S_IFCHR|0600, st_rdev=makedev(136, 0), ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb778b000 _llseek(4, 0, 0xbfbd39bc, SEEK_CUR) = -1 ESPIPE (Illegal seek) write(4, "arm-linux-gcc: No such file or di"..., 41arm-linux-gcc: No such file or directory ) = 41 close(4) = 0 munmap(0xb778b000, 4096) = 0 exit_group(1) = ? fstat64(3, {st_mode=S_IFREG|0644, st_size=51701, ...}) = 0 mmap2(NULL, 51701, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb777f000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = 0 open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "/177ELF/1/1/1/0/0/0/0/0/0/0/0/0/3/0/3/0/1/0/0/0/320h/1/0004/0/0/0T"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1331404, ...}) = 0 mmap2(NULL, 1336944, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7638000 mmap2(0xb7779000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x141) = 0xb7779000 mmap2(0xb777c000, 9840, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb777c000 close(3) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7637000 set_thread_area({entry_number:-1 -> 6, base_addr:0xb76378d0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 open("/dev/urandom", O_RDONLY) = 3 read(3, "/242/35/252"..., 3) = 3 close(3) = 0 mprotect(0xb7779000, 8192, PROT_READ) = 0 mprotect(0xb77aa000, 4096, PROT_READ) = 0 munmap(0xb777f000, 51701) = 0 brk(0) = 0x8380000 brk(0x83a1000) = 0x83a1000 dup(2) = 3

root@zanget:/home/4.2.2-eabi/usr/bin# ./arm-linux-gcc arm-linux-gcc: No such file or directory

mkdir -p /usr/local/arm mv 4.2.2-eabi/ /usr/local/arm/ cd /usr/local/arm/4.2.2-eabi/usr/bin strace ./arm-linux-gcc

root@zanget:/usr/local/arm/4.2.2-eabi/usr/bin# strace ./arm-linux-gcc execve("./arm-linux-gcc", ["./arm-linux-gcc"], [/* 20 vars */]) = 0 brk(0) = 0x87cf000 access("/etc/ld.so.nohwcap", F_OK) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb772d000 access("/etc/ld.so.preload", R_OK) = 0 open("/etc/ld.so.preload", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 close(3) = 0 open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=51701, ...}) = 0 mmap2(NULL, 51701, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7720000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = 0 open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "/177ELF/1/1/1/0/0/0/0/0/0/0/0/0/3/0/3/0/1/0/0/0/320h/1/0004/0/0/0T"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1331404, ...}) = 0 mmap2(NULL, 1336944, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb75d9000 mmap2(0xb771a000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x141) = 0xb771a000 mmap2(0xb771d000, 9840, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb771d000 close(3) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb75d8000 set_thread_area({entry_number:-1 -> 6, base_addr:0xb75d88d0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 open("/dev/urandom", O_RDONLY) = 3 read(3, "@/226`"..., 3) = 3 close(3) = 0 mprotect(0xb771a000, 8192, PROT_READ) = 0 mprotect(0xb774b000, 4096, PROT_READ) = 0 munmap(0xb7720000, 51701) = 0 brk(0) = 0x87cf000 brk(0x87f0000) = 0x87f0000 dup(2) = 3 stat64("/root/.ccache_4.2.2", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 access("/usr/local/arm/4.2.2-eabi//usr/bin-ccache/arm-linux-gcc", X_OK) = 0 lstat64("/usr/local/arm/4.2.2-eabi//usr/bin-ccache/arm-linux-gcc", {st_mode=S_IFLNK|0777, st_size=29, ...}) = 0 stat64("/usr/local/arm/4.2.2-eabi//usr/bin-ccache/arm-linux-gcc", {st_mode=S_IFREG|0755, st_size=404986, ...}) = 0 lstat64("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local/arm", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi/usr", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi/usr/bin-ccache", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/arm-linux-gcc", {st_mode=S_IFLNK|0777, st_size=29, ...}) = 0 readlink("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/arm-linux-gcc", "arm-unknown-linux-gnueabi-gcc"..., 4095) = 29 lstat64("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/arm-unknown-linux-gnueabi-gcc", {st_mode=S_IFREG|0755, st_size=404986, ...}) = 0 open("/root/.ccache_4.2.2/stats", O_RDWR) = 4 fcntl64(4, F_SETLKW, {type=F_WRLCK, whence=SEEK_SET, start=0, len=1}) = 0 read(4, "0 0 0 0 0 0 140 0 0 0 0 0 0 0 625"..., 1023) = 51 lseek(4, 0, SEEK_SET) = 0 write(4, "0 0 0 0 0 0 140 0 0 0 0 0 0 0 625"..., 51) = 51 close(4) = 0 execve("/usr/local/arm/4.2.2-eabi//usr/bin-ccache/arm-linux-gcc", ["/usr/local/arm/4.2.2-eabi//usr/b"...], [/* 21 vars */]) = 0 brk(0) = 0x886c000 access("/etc/ld.so.nohwcap", F_OK) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb77a4000 access("/etc/ld.so.preload", R_OK) = 0 open("/etc/ld.so.preload", O_RDONLY) = 4 fstat64(4, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 close(4) = 0 open("/etc/ld.so.cache", O_RDONLY) = 4 fstat64(4, {st_mode=S_IFREG|0644, st_size=51701, ...}) = 0 mmap2(NULL, 51701, PROT_READ, MAP_PRIVATE, 4, 0) = 0xb7797000 close(4) = 0 access("/etc/ld.so.nohwcap", F_OK) = 0 open("/lib/libc.so.6", O_RDONLY) = 4 read(4, "/177ELF/1/1/1/0/0/0/0/0/0/0/0/0/3/0/3/0/1/0/0/0/320h/1/0004/0/0/0T"..., 512) = 512 fstat64(4, {st_mode=S_IFREG|0755, st_size=1331404, ...}) = 0 mmap2(NULL, 1336944, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0xb7650000 mmap2(0xb7791000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x141) = 0xb7791000 mmap2(0xb7794000, 9840, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7794000 close(4) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb764f000 set_thread_area({entry_number:-1 -> 6, base_addr:0xb764f8d0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 open("/dev/urandom", O_RDONLY) = 4 read(4, "/227)6"..., 3) = 3 close(4) = 0 mprotect(0xb7791000, 8192, PROT_READ) = 0 mprotect(0xb77c2000, 4096, PROT_READ) = 0 munmap(0xb7797000, 51701) = 0 brk(0) = 0x886c000 brk(0x888d000) = 0x888d000 rt_sigaction(SIGINT, {SIG_IGN}, {SIG_DFL}, 8) = 0 rt_sigaction(SIGINT, {0x804f3c0, [INT], SA_RESTART}, {SIG_IGN}, 8) = 0 rt_sigaction(SIGHUP, {SIG_IGN}, {SIG_DFL}, 8) = 0 rt_sigaction(SIGHUP, {0x804f3c0, [HUP], SA_RESTART}, {SIG_IGN}, 8) = 0 rt_sigaction(SIGTERM, {SIG_IGN}, {SIG_DFL}, 8) = 0 rt_sigaction(SIGTERM, {0x804f3c0, [TERM], SA_RESTART}, {SIG_IGN}, 8) = 0 rt_sigaction(SIGPIPE, {SIG_IGN}, {SIG_DFL}, 8) = 0 rt_sigaction(SIGPIPE, {0x804f3c0, [PIPE], SA_RESTART}, {SIG_IGN}, 8) = 0 rt_sigaction(SIGCHLD, {SIG_DFL}, {SIG_DFL}, 8) = 0 lstat64("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local/arm", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi/usr", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi/usr/bin-ccache", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/arm-linux-gcc", {st_mode=S_IFLNK|0777, st_size=29, ...}) = 0 readlink("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/arm-linux-gcc", "arm-unknown-linux-gnueabi-gcc"..., 4095) = 29 lstat64("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/arm-unknown-linux-gnueabi-gcc", {st_mode=S_IFREG|0755, st_size=404986, ...}) = 0 lstat64("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local/arm", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi/usr", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi/usr/bin-ccache", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/arm-linux-gcc", {st_mode=S_IFLNK|0777, st_size=29, ...}) = 0 readlink("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/arm-linux-gcc", "arm-unknown-linux-gnueabi-gcc"..., 4095) = 29 lstat64("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/arm-unknown-linux-gnueabi-gcc", {st_mode=S_IFREG|0755, st_size=404986, ...}) = 0 access("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/", X_OK) = 0 access("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/", X_OK) = 0 access("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/", X_OK) = 0 access("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/", X_OK) = 0 access("/usr/lib/gcc/arm-unknown-linux-gnueabi/4.2.2/", X_OK) = -1 ENOENT (No such file or directory) access("/usr/lib/gcc/arm-unknown-linux-gnueabi/", X_OK) = -1 ENOENT (No such file or directory) access("/usr/lib/gcc/", X_OK) = 0 access("/usr/lib/gcc/arm-unknown-linux-gnueabi/4.2.2/", X_OK) = -1 ENOENT (No such file or directory) access("/usr/lib/gcc/arm-unknown-linux-gnueabi/", X_OK) = -1 ENOENT (No such file or directory) access("/usr/lib/gcc/", X_OK) = 0 lstat64("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local/arm", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi/usr", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi/usr/bin-ccache", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0 lstat64("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/arm-linux-gcc", {st_mode=S_IFLNK|0777, st_size=29, ...}) = 0 readlink("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/arm-linux-gcc", "arm-unknown-linux-gnueabi-gcc"..., 4095) = 29 lstat64("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/arm-unknown-linux-gnueabi-gcc", {st_mode=S_IFREG|0755, st_size=404986, ...}) = 0 access("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/../local/arm/4.2.2-eabi/", F_OK) = -1 ENOENT (No such file or directory) access("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/../lib/gcc/arm-unknown-linux-gnueabi/4.2.2/specs", R_OK) = -1 ENOENT (No such file or directory) access("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/../lib/gcc/specs", R_OK) = -1 ENOENT (No such file or directory) access("/usr/lib/gcc/arm-unknown-linux-gnueabi/4.2.2/specs", R_OK) = -1 ENOENT (No such file or directory) access("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/../lib/gcc/arm-unknown-linux-gnueabi/4.2.2/../../../../arm-unknown-linux-gnueabi/lib/arm-unknown-linux-gnueabi/4.2.2/specs", R_OK) = -1 ENOENT (No such file or directory) access("/usr/local/arm/4.2.2-eabi/usr/bin-ccache/../lib/gcc/arm-unknown-linux-gnueabi/4.2.2/../../../../arm-unknown-linux-gnueabi/lib/specs", R_OK) = -1 ENOENT (No such file or directory) access("/usr/lib/gcc/../../arm-unknown-linux-gnueabi/lib/arm-unknown-linux-gnueabi/4.2.2/specs", R_OK) = -1 ENOENT (No such file or directory) access("/usr/lib/gcc/../../arm-unknown-linux-gnueabi/lib/specs", R_OK) = -1 ENOENT (No such file or directory) access("/usr/lib/gcc/arm-unknown-linux-gnueabi/specs", R_OK) = -1 ENOENT (No such file or directory) write(2, "arm-linux-gcc: "..., 15arm-linux-gcc: ) = 15 write(2, "no input files"..., 14no input files) = 14 write(2, "/n"..., 1 ) = 1 exit_group(1) = ?

root@zanget:/usr/local/arm/4.2.2-eabi/usr/bin# ./arm-linux-gcc arm-linux-gcc: no input files

So my problem is why ./ccache
can be executed , but its link of arm-linux-gcc can not be executed in /home/4.2.2-eabi/usr/bin???