(Not sure if openwrt-users or opwnert-devel is the most appropriate list for this; am sending to openwrt-devel after having had no reply from openwrt-users)
---------- Forwarded message ---------- From: Jonathan Hunter <jmhunt...@gmail.com> Date: 2009/4/26 Subject: Compiling simple app using sqlite library To: openwrt-us...@lists.openwrt.org Hi, I must be missing something simple here. Can anybody point me in the right direction? I am running kamikaze (8.09, r15397), updated from the latest SVN and patched with https://dev.openwrt.org/attachment/ticket/4975/fix-oops.diff so that my WRT54G boots. Using 'make menuconfig', I have added the "Libraries/database/libsqlite3" package and also "Base system/libpthread" (needed by sqlite, I think). I am trying to compile the example sqlite C app from http://www.sqlite.org/quickstart.html, but it isn't working. The code works fine on my local PC, but hangs when I run it on my router. Local output: $ cc -o sqlite-sample -lsqlite3 sqlite-sample.c $ ./sqlite-sample test "select 1" 1 = 1 Router output: $ /home/jonathan/kamikaze/OpenWrt-SDK-brcm-2.4-for-Linux-i686/staging_dir/toolchain-mipsel_gcc3.4.6/bin/mipsel-linux-uclibc-gcc \ -I/home/jonathan/kamikaze/8.09/staging_dir/mipsel/usr/include \ -L/home/jonathan/kamikaze/8.09/staging_dir/mipsel/usr/lib \ -I/home/jonathan/kamikaze/OpenWrt-SDK-brcm-2.4-for-Linux-i686/staging_dir/toolchain-mipsel_gcc3.4.6/include \ -lsqlite3 -o sqlite-sample sqlite-sample.c r...@openwrt:/# ./sqlite-sample test "select 1" (just hangs) Running strace on the router, it hangs here: r...@openwrt:/# strace ./sqlite-sample test "select 1" [...] open("/lib/libc.so.0", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=405559, ...}) = 0 close(3) = 0 stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0755, st_size=20694, ...}) = 0 mprotect(0x2ac8a000, 4096, PROT_READ) = 0 mprotect(0x2acde000, 4096, PROT_READ) = 0 mprotect(0x2aaec000, 4096, PROT_READ) = 0 ioctl(0, TIOCNXCL, {B38400 opost isig icanon echo ...}) = 0 ioctl(1, TIOCNXCL, {B38400 opost isig icanon echo ...}) = 0 getpid() = 1081 getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0 setrlimit(RLIMIT_STACK, {rlim_cur=2040*1024, rlim_max=RLIM_INFINITY}) = 0 rt_sigaction(SIGRT_0, {SIG_DFL, [], SA_STACK|SA_INTERRUPT|SA_SIGINFO|SA_NOCLDWAIT|0x2c8cf24}, NULL, 16) = 0 rt_sigaction(SIGRT_1, {SIG_DFL, [], SA_STACK|SA_INTERRUPT|SA_SIGINFO|SA_NOCLDWAIT|0x2c8cfe0}, NULL, 16) = 0 rt_sigaction(SIGRT_2, {SIG_DFL, [], SA_STACK|SA_INTERRUPT|SA_SIGINFO|SA_NOCLDWAIT|0x2c8d134}, NULL, 16) = 0 rt_sigprocmask(SIG_BLOCK, [RT_0], NULL, 16) = 0 rt_sigprocmask(SIG_UNBLOCK, [RT_1], NULL, 16) = 0 brk(0) = 0x440ec0 brk(0x441ec0) = 0x441ec0 brk(0x442000) = 0x442000 [This is where it hangs. Full strace output here: http://pastebin.ca/1403242 ] I then wondered if the libraries were mismatched, so tried to compile the app with "-static" - but couldn't get that working at all: $ /home/jonathan/kamikaze/OpenWrt-SDK-brcm-2.4-for-Linux-i686/staging_dir/toolchain-mipsel_gcc3.4.6/bin/mipsel-linux-uclibc-gcc \ -I/home/jonathan/kamikaze/8.09/staging_dir/mipsel/usr/include \ -L/home/jonathan/kamikaze/8.09/staging_dir/mipsel/usr/lib \ -I/home/jonathan/kamikaze/OpenWrt-SDK-brcm-2.4-for-Linux-i686/staging_dir/toolchain-mipsel_gcc3.4.6/include \ -lsqlite3 -o sqlite-sample -static sqlite-sample.c /tmp/ccSIqYdS.o: In function `main': sqlite-sample.c:(.text+0x1d8): undefined reference to `sqlite3_open' sqlite-sample.c:(.text+0x204): undefined reference to `sqlite3_errmsg' sqlite-sample.c:(.text+0x250): undefined reference to `sqlite3_close' sqlite-sample.c:(.text+0x2a0): undefined reference to `sqlite3_exec' sqlite-sample.c:(.text+0x2fc): undefined reference to `sqlite3_free' sqlite-sample.c:(.text+0x314): undefined reference to `sqlite3_close' collect2: ld returned 1 exit status $ ls /home/jonathan/kamikaze/8.09/staging_dir/mipsel/usr/lib/libsqlite* /home/jonathan/kamikaze/8.09/staging_dir/mipsel/usr/lib/libsqlite3.a /home/jonathan/kamikaze/8.09/staging_dir/mipsel/usr/lib/libsqlite3.so /home/jonathan/kamikaze/8.09/staging_dir/mipsel/usr/lib/libsqlite3.so.0 /home/jonathan/kamikaze/8.09/staging_dir/mipsel/usr/lib/libsqlite3.so.0.8.6 What am I missing / what can I try next? Is it just me?! :-) Many thanks, Jonathan -- "If we knew what it was we were doing, it would not be called research, would it?" - Albert Einstein _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
