recent gcc complains about "LOAD segment with RWX permissions"
fenugrec opened this issue · 4 comments
/usr/lib/gcc/arm-none-eabi/12.2.0/../../../../arm-none-eabi/bin/ld: warning: cantact_fw has a LOAD segment with RWX permissions
Trying the naive fix of editing the .ldscripts RAM section as
RAM (rw) : ORIGIN = 0x20000000, LENGTH = 6K
has no effect.
A search quickly indicates we're not the only ones seeing this :
I haven't had time to dig any further.
I'm also fairly certain this can be disregarded on baremetal, non-MMU firmware like this.
can we add --no-warn-rwx-segmentssystematically or would that break on older binutils versions ?
[EDIT] ugh, no, that won't work on older versions. Not sure how I feel about doing binutils version checking in cmakelists. Doesn't bother me enough to spend time on this.
Maybe cmake has a mechanism to check for ld-options ?
Projects using plain makefiles have to resort to this kind of script
https://github.com/OP-TEE/optee_os/blob/203ee23d005b2cec2f21b5de334c5a246be32599/mk/cc-option.mk
I think it's supported by cmake diretly?
https://cmake.org/cmake/help/latest/module/CheckLinkerFlag.html