Looks like some kind of bug inside the sqlite library. There is an option in openwrt menuconfig to compile stuff with debug symbols. Enable that and also enable the gdbserver package. Then you can start your program with &, attach gdbserver to it, break and then you can see, where exactly it hangs.
2010/3/3 Jesus arteche <[email protected]>: > Bernhard you are right i should send the code...and make a debug...so I did > this... > > I compile a hello world: > > #include <stdio.h> > > > int main(int argc, char **argv) { > > printf("\nhello world\n"); > > } > > with this command: > > /usr/src/openwrt/fon/openwrt/build_dir/mipsel/OpenWrt-SDK-fonera2n-for-Linux-x86_64/staging_dir/toolchain-mipsel_gcc4.1.2/bin/mipsel-linux-uclibc-gcc-4.1.2 > /home/chechu/Documentos/hello.c -o hello > > > and it works. But when I compile the same program with the sqlite librarie > it hangs. I use this command: > > /usr/src/openwrt/fon/openwrt/build_dir/mipsel/OpenWrt-SDK-fonera2n-for-Linux-x86_64/staging_dir/toolchain-mipsel_gcc4.1.2/bin/mipsel-linux-uclibc-gcc-4.1.2 > -L staging_dir/mipsel/usr/lib/ -lsqlite3 hello.c -o hello > > > > thanks > > > On Wed, Mar 3, 2010 at 1:17 PM, Bernhard Loos <[email protected]> > wrote: >> >> Without the source, how should we know? >> You will have to start debugging it yourself. Besides good old printf >> debugging, there is also remote gdb you can use. >> >> 2010/3/3 Jesus arteche <[email protected]>: >> > Hi, >> > >> > I'm compiling a c program that uses sqlite3 libraries...when I execute >> > the >> > program in my pc it works right...later I make a cross compile using >> > fon >> > version of OpenWRT (SDK)...and when I execute in openWRT (fonera) it >> > hangs...dont do anything here is the trace (I did with strace): >> > >> > >> > >> > execve("/mnt/usb/pruebasql", ["/mnt/usb/pruebasql"], [/* 8 vars */]) = 0 >> > svr4_syscall() = -1 ERRNO_4090 (Unknown error >> > 4090) >> > stat("/etc/ld.so.cache", 0x7fb88a60) = -1 ENOENT (No such file or >> > directory) >> > open("/lib/libsqlite3.so.0", O_RDONLY) = -1 ENOENT (No such file or >> > directory) >> > open("/lib/libsqlite3.so.0", O_RDONLY) = -1 ENOENT (No such file or >> > directory) >> > open("/usr/lib/libsqlite3.so.0", O_RDONLY) = 3 >> > fstat(3, {st_mode=S_IFREG|0755, st_size=436063, ...}) = 0 >> > old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, >> > -1, 0) >> > = 0x2aaae000 >> > read(3, >> > >> > "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\0\216\0\0004\0\0\0"..., >> > 4096) = 4096 >> > old_mmap(NULL, 700416, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = >> > 0x2aaee000 >> > old_mmap(0x2aaee000, 431612, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, >> > 3, >> > 0) = 0x2aaee000 >> > old_mmap(0x2ab97000, 5983, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, >> > 3, >> > 0x69000) = 0x2ab97000 >> > close(3) = 0 >> > munmap(0x2aaae000, 4096) = 0 >> > open("/lib/libgcc_s.so.1", O_RDONLY) = 3 >> > fstat(3, {st_mode=S_IFREG|0644, st_size=60806, ...}) = 0 >> > old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, >> > -1, 0) >> > = 0x2aaae000 >> > read(3, >> > >> > "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\240\31\0\0004\0\0\0"..., >> > 4096) = 4096 >> > old_mmap(NULL, 323584, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = >> > 0x2ab99000 >> > old_mmap(0x2ab99000, 58700, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, >> > 3, >> > 0) = 0x2ab99000 >> > old_mmap(0x2abe7000, 3462, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, >> > 3, >> > 0xe000) = 0x2abe7000 >> > close(3) = 0 >> > munmap(0x2aaae000, 4096) = 0 >> > open("/lib/libc.so.0", O_RDONLY) = 3 >> > fstat(3, {st_mode=S_IFREG|0644, st_size=397215, ...}) = 0 >> > old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, >> > -1, 0) >> > = 0x2aaae000 >> > read(3, >> > "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0`\250\0\0004\0\0\0"..., >> > 4096) = 4096 >> > old_mmap(NULL, 679936, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = >> > 0x2abe8000 >> > old_mmap(0x2abe8000, 388676, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, >> > 3, >> > 0) = 0x2abe8000 >> > old_mmap(0x2ac87000, 8095, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, >> > 3, >> > 0x5f000) = 0x2ac87000 >> > old_mmap(0x2ac89000, 19456, PROT_READ|PROT_WRITE, >> > MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2ac89000 >> > close(3) = 0 >> > munmap(0x2aaae000, 4096) = 0 >> > open("/lib/libpthread.so.0", O_RDONLY) = 3 >> > fstat(3, {st_mode=S_IFREG|0644, st_size=71594, ...}) = 0 >> > old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, >> > -1, 0) >> > = 0x2aaae000 >> > read(3, >> > "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\0205\0\0004\0\0\0"..., >> > 4096) = 4096 >> > old_mmap(NULL, 344064, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = >> > 0x2ac8e000 >> > old_mmap(0x2ac8e000, 49960, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, >> > 3, >> > 0) = 0x2ac8e000 >> > old_mmap(0x2acda000, 22442, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, >> > 3, >> > 0xc000) = 0x2acda000 >> > old_mmap(0x2ace0000, 6816, PROT_READ|PROT_WRITE, >> > MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2ace0000 >> > close(3) = 0 >> > munmap(0x2aaae000, 4096) = 0 >> > open("/lib/libgcc_s.so.1", O_RDONLY) = 3 >> > fstat(3, {st_mode=S_IFREG|0644, st_size=60806, ...}) = 0 >> > close(3) = 0 >> > open("/lib/libc.so.0", O_RDONLY) = 3 >> > fstat(3, {st_mode=S_IFREG|0644, st_size=397215, ...}) = 0 >> > close(3) = 0 >> > open("/lib/libc.so.0", O_RDONLY) = 3 >> > fstat(3, {st_mode=S_IFREG|0644, st_size=397215, ...}) = 0 >> > close(3) = 0 >> > open("/lib/libc.so.0", O_RDONLY) = 3 >> > fstat(3, {st_mode=S_IFREG|0644, st_size=397215, ...}) = 0 >> > close(3) = 0 >> > stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0755, st_size=20694, ...}) >> > = 0 >> > mprotect(0x2ac87000, 4096, PROT_READ) = 0 >> > mprotect(0x2acda000, 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() = 4628 >> > 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}, NULL, 16) = 0 >> > rt_sigaction(SIGRT_1, {SIG_DFL}, NULL, 16) = 0 >> > rt_sigaction(SIGRT_2, {SIG_DFL}, NULL, 16) = 0 >> > rt_sigprocmask(SIG_BLOCK, [RT_0], NULL, 16) = 0 >> > rt_sigprocmask(SIG_UNBLOCK, [RT_1], NULL, 16) = 0 >> > >> > >> > >> > I'm using uclibc 0.9.28...someone knows why it hangs there... >> > >> > thanks >> > >> > >> > _______________________________________________ >> > openwrt-devel mailing list >> > [email protected] >> > https://lists.openwrt.org/mailman/listinfo/openwrt-devel >> > >> > >> _______________________________________________ >> openwrt-devel mailing list >> [email protected] >> https://lists.openwrt.org/mailman/listinfo/openwrt-devel > > > _______________________________________________ > openwrt-devel mailing list > [email protected] > https://lists.openwrt.org/mailman/listinfo/openwrt-devel > > _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/mailman/listinfo/openwrt-devel
