Hello,
I'm sending this mail to check if possible to get some support compiling a
project using lwip.
I'm trying to make some tests to get lwip working on Raspberry Pi Pico with
LAN8720 module.
At moment i'm having problems to compile lwip lib that is inside pico-extras
(git submodule).
I have both PICO_SDK_PATH AND PICO_EXTRAS_PATH setup properly as mentioned.
/usr/local/Cellar/arm-none-eabi-gcc/9-2019-q4-major/gcc/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld:
CMakeFiles/rmiieth.dir/Users/leandro/Projects/pico-extras/lib/lwip/src/core/netif.c.obj:
in function `netif_set_addr':
netif.c:(.text.netif_set_addr+0x7e): undefined reference to
`acd_netif_ip_addr_changed'
/usr/local/Cellar/arm-none-eabi-gcc/9-2019-q4-major/gcc/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld:
netif.c:(.text.netif_set_addr+0xb6): undefined reference to
`acd_netif_ip_addr_changed'
/usr/local/Cellar/arm-none-eabi-gcc/9-2019-q4-major/gcc/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld:
CMakeFiles/rmiieth.dir/Users/leandro/Projects/pico-extras/lib/lwip/src/core/timeouts.c.obj:(.rodata.lwip_cyclic_timers+0x2c):
undefined reference to `acd_tmr'
/usr/local/Cellar/arm-none-eabi-gcc/9-2019-q4-major/gcc/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld:
CMakeFiles/rmiieth.dir/Users/leandro/Projects/pico-extras/lib/lwip/src/core/ipv4/dhcp.c.obj:
in function `dhcp_recv':
dhcp.c:(.text.dhcp_recv+0x416): undefined reference to `acd_start'
/usr/local/Cellar/arm-none-eabi-gcc/9-2019-q4-major/gcc/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld:
CMakeFiles/rmiieth.dir/Users/leandro/Projects/pico-extras/lib/lwip/src/core/ipv4/dhcp.c.obj:
in function `dhcp_start':
dhcp.c:(.text.dhcp_start+0x42): undefined reference to `acd_add'
/usr/local/Cellar/arm-none-eabi-gcc/9-2019-q4-major/gcc/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld:
CMakeFiles/rmiieth.dir/Users/leandro/Projects/pico-extras/lib/lwip/src/core/ipv4/etharp.c.obj:
in function `etharp_input':
etharp.c:(.text.etharp_input+0x72): undefined reference to `acd_arp_reply'
collect2: error: ld returned 1 exit status
make[2]: *** [rmiieth.elf] Error 1
make[1]: *** [CMakeFiles/rmiieth.dir/all] Error 2
make: *** [all] Error 2
The functions are defined inside acd.c but seems like this file is not listed
for compilation and thus functions will be missing during linkage. I don't see
any file inside pico-extras repo that that list/specifies in detail
configuration for lwip. Maybe I'm missing something.
I'm trying to compile and test this project/repo:
https://github.com/strags/pico-rmiieth , out of the box without modification.
OS: Mac OS X 10.15.7 (also tried inside Debian Docker image)
CMake Version: 3.20.2
Thanks for reading.
Kind regards,
Leandro Loureiro
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