Hello again,
I have the same problem after compiling for x86_64. Here is the output
if I try to compile scp_write.c from the examples:
*
**:~/path/to/libssh2-1.9.0/build_x86_64$ gcc -I install/include/ -I
example/ -L install/lib/ -l:libssh2.a ../example/scp_write.c **
**/usr/bin/ld: /tmp/ccdrFU90.o: in function `main':**
**scp_write.c:(.text+0xf1): undefined reference to `libssh2_init'**
**/usr/bin/ld: scp_write.c:(.text+0x24a): undefined reference to
`libssh2_session_init_ex'**
**/usr/bin/ld: scp_write.c:(.text+0x270): undefined reference to
`libssh2_session_handshake'**
**/usr/bin/ld: scp_write.c:(.text+0x2b2): undefined reference to
`libssh2_hostkey_hash'**
**/usr/bin/ld: scp_write.c:(.text+0x36f): undefined reference to
`libssh2_userauth_password_ex'**
**/usr/bin/ld: scp_write.c:(.text+0x3d1): undefined reference to
`libssh2_userauth_publickey_fromfile_ex'**
**/usr/bin/ld: scp_write.c:(.text+0x42d): undefined reference to
`libssh2_scp_send_ex'**
**/usr/bin/ld: scp_write.c:(.text+0x45d): undefined reference to
`libssh2_session_last_error'**
**/usr/bin/ld: scp_write.c:(.text+0x502): undefined reference to
`libssh2_channel_write_ex'**
**/usr/bin/ld: scp_write.c:(.text+0x579): undefined reference to
`libssh2_channel_send_eof'**
**/usr/bin/ld: scp_write.c:(.text+0x5a8): undefined reference to
`libssh2_channel_wait_eof'**
**/usr/bin/ld: scp_write.c:(.text+0x5d7): undefined reference to
`libssh2_channel_wait_closed'**
**/usr/bin/ld: scp_write.c:(.text+0x5e6): undefined reference to
`libssh2_channel_free'**
**/usr/bin/ld: scp_write.c:(.text+0x617): undefined reference to
`libssh2_session_disconnect_ex'**
**/usr/bin/ld: scp_write.c:(.text+0x623): undefined reference to
`libssh2_session_free'**
**/usr/bin/ld: scp_write.c:(.text+0x665): undefined reference to
`libssh2_exit'**
**collect2: error: ld returned 1 exit status*
Thanks,
S.
On 9/24/20 3:10 PM, Simone wrote:
Hello,
I have built libssh2 and its dependencies for aarch64, in such a way
to link these libs as static into the final executable.
So the dependencies compiled as static libraries are
*libassuan.a
libcrypto.a
libgcrypt.a
libgpg-error.a
libksba.a
libnpth.a
libntbtls.a
libssl.a
libz.a*
To test the static linkage I use the following minimal code:
// libssh2_test.c
#include <libssh2.h>
int main(void)
{
LIBSSH2_SESSION *session;
LIBSSH2_CHANNEL *channel;
libssh2_init(0);
session = libssh2_session_init();
libssh2_session_free(session);
libssh2_exit();
return 0;
}
But when I try to compile, ld cannot find libssh2 symbols:
*aarch64-linux-gnu-gcc -I ../third/include/ ../third/lib/libz.a
../third/lib/libnpth.a ../third/lib/libssl.a ../third/lib/libcrypto.a
../third/lib/libgpg-error.a ../third/lib/libksba.a
../third/lib/libgcrypt.a ../third/lib/libntbtls.a
../third/lib/libassuan.a ../third/lib/libssh2.a libssh2_test.c -o
libssh2_test
/opt/Xilinx/Vitis/2019.2/gnu/aarch64/lin/aarch64-linux/bin/../lib/gcc/aarch64-linux-gnu/8.2.0/../../../../aarch64-linux-gnu/bin/ld:
/tmp/ccSuPNUb.o: in function `main':
libssh2_test.c:(.text+0xc): undefined reference to `libssh2_init'
/opt/Xilinx/Vitis/2019.2/gnu/aarch64/lin/aarch64-linux/bin/../lib/gcc/aarch64-linux-gnu/8.2.0/../../../../aarch64-linux-gnu/bin/ld:
libssh2_test.c:(.text+0x20): undefined reference to
`libssh2_session_init_ex'
/opt/Xilinx/Vitis/2019.2/gnu/aarch64/lin/aarch64-linux/bin/../lib/gcc/aarch64-linux-gnu/8.2.0/../../../../aarch64-linux-gnu/bin/ld:
libssh2_test.c:(.text+0x2c): undefined reference to `libssh2_session_free'
/opt/Xilinx/Vitis/2019.2/gnu/aarch64/lin/aarch64-linux/bin/../lib/gcc/aarch64-linux-gnu/8.2.0/../../../../aarch64-linux-gnu/bin/ld:
libssh2_test.c:(.text+0x30): undefined reference to `libssh2_exit'
collect2: error: ld returned 1 exit status*
Of course these functions are defined in libssh2.h.
libssh2 has been compiled using the following script:
*#!/bin/sh
host=aarch64
target=aarch64-linux-gnu
cc=${target}-gcc
cpp=${target}-g++
ar=${target}-ar
cross_path=/opt/Xilinx/Vitis/2019.2/gnu/aarch64/lin/aarch64-linux/bin
install_prefix=${PWD}/../../../third/
../configure --prefix=${install_prefix} \
--host=${host} \
CC=${cross_path}/${cc} \
CXX=${cross_path}/${cpp} \
--with-gnu-ld \
--with-libgpg-error-prefix=${install_prefix} \
--with-crypto=auto \
--with-libgcrypt-prefix=${install_prefix} \
--with-libssl-prefix=${install_prefix} \
--enable-static \
--enable-shared
if [ $? -eq 0 ]; then
make -j 32
make install
fi*
Could someone suggest what I have done wrong ?
Thanks.
S.
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