Build failure with Stack Protector

[jschmoller]

I've checked out the v2023.09 tag and attempted to build the mpfs-icicle-kit-es with the CC_STACKPROTECTOR_STRONG enabled. I am using the compiler provided by SoftConsole v2022.2, GCC 8.3.0.

~/hss$ riscv64-unknown-elf-gcc --version
riscv64-unknown-elf-gcc (xPack GNU RISC-V Embedded GCC (Microsemi SoftConsole build), 64-bit) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compile fails at linking.

 LD        hss-l2scratch.elf
/home/jschmoller/SoftConsole-v2022.2-RISC-V-747/riscv-unknown-elf-gcc/bin/../lib/gcc/riscv64-unknown-elf/8.3.0/../../../../riscv64-unknown-elf/bin/ld: application/crt.o: in function `.L0 ':
/home/jschmoller/hss/application/crt.S:30: undefined reference to `platform'
/home/jschmoller/SoftConsole-v2022.2-RISC-V-747/riscv-unknown-elf-gcc/bin/../lib/gcc/riscv64-unknown-elf/8.3.0/../../../../riscv64-unknown-elf/bin/ld: /home/jschmoller/hss/application/crt.S:244: undefined reference to `HSS_U54_HandleIPI'
/home/jschmoller/SoftConsole-v2022.2-RISC-V-747/riscv-unknown-elf-gcc/bin/../lib/gcc/riscv64-unknown-elf/8.3.0/../../../../riscv64-unknown-elf/bin/ld: application/crt.o: in function `.checkIfHssIpi':
/home/jschmoller/hss/application/crt.S:254: undefined reference to `sbi_trap_handler'
/home/jschmoller/SoftConsole-v2022.2-RISC-V-747/riscv-unknown-elf-gcc/bin/../lib/gcc/riscv64-unknown-elf/8.3.0/../../../../riscv64-unknown-elf/bin/ld: application/crt.o: in function `.L0 ':
/home/jschmoller/hss/application/crt.S:110: undefined reference to `HSS_U54_Banner'
/home/jschmoller/SoftConsole-v2022.2-RISC-V-747/riscv-unknown-elf-gcc/bin/../lib/gcc/riscv64-unknown-elf/8.3.0/../../../../riscv64-unknown-elf/bin/ld: application/hart0/hss_main.o: in function `main':
/home/jschmoller/hss/application/hart0/hss_main.c:77: undefined reference to `HSS_Init'
/home/jschmoller/SoftConsole-v2022.2-RISC-V-747/riscv-unknown-elf-gcc/bin/../lib/gcc/riscv64-unknown-elf/8.3.0/../../../../riscv64-unknown-elf/bin/ld: /home/jschmoller/hss/application/hart0/hss_main.c:80: undefined reference to `sbi_hart_hang'
/home/jschmoller/SoftConsole-v2022.2-RISC-V-747/riscv-unknown-elf-gcc/bin/../lib/gcc/riscv64-unknown-elf/8.3.0/../../../../riscv64-unknown-elf/bin/ld: application/hart0/hss_main.o: in function `hss_main':
/home/jschmoller/hss/application/hart0/hss_main.c:64: undefined reference to `HSS_Wdog_MonitorHart'
/home/jschmoller/SoftConsole-v2022.2-RISC-V-747/riscv-unknown-elf-gcc/bin/../lib/gcc/riscv64-unknown-elf/8.3.0/../../../../riscv64-unknown-elf/bin/ld: /home/jschmoller/hss/application/hart0/hss_main.c:68: undefined reference to `spanOfPGlobalStateMachines'
/home/jschmoller/SoftConsole-v2022.2-RISC-V-747/riscv-unknown-elf-gcc/bin/../lib/gcc/riscv64-unknown-elf/8.3.0/../../../../riscv64-unknown-elf/bin/ld: /home/jschmoller/hss/application/hart0/hss_main.c:68: undefined reference to `pGlobalStateMachines'
/home/jschmoller/SoftConsole-v2022.2-RISC-V-747/riscv-unknown-elf-gcc/bin/../lib/gcc/riscv64-unknown-elf/8.3.0/../../../../riscv64-unknown-elf/bin/ld: /home/jschmoller/hss/application/hart0/hss_main.c:68: undefined reference to `RunStateMachines'
collect2: error: ld returned 1 exit status
 NM        hss-l2scratch.sym
riscv64-unknown-elf-nm: 'Default/hss-l2scratch.elf': No such file
 BIN       hss-l2scratch.bin
riscv64-unknown-elf-objcopy: 'Default/hss-l2scratch.elf': No such file
make: *** [Makefile:124: hss-l2scratch.elf] Error 1

Anyone seen this before (and hopefully, know a solution)?

[rockoguido]

Hi.
Assuming that you are building for the Icicle kit or something similar and you enabled strong stack protection via Kconfig.
Also assuming that without this option enabled you are able to build without an issue
I tried the above and I also see same link time errors.
digging further you are enabling CONFIG_CC_STACKPROTECTOR_STRONG=y in .config, by default this is disabled.
looking at rules.mk there seems to be a known issue enabling the stack protector feature and having Link Time optimization enabled (flt0)
The environment is hardwired to version 8.3.0 of the tools, so no issue there.
will raise as a potential issue with the Support Team
Regards,
Dave