libmicrokit,loader,monitor: omit stack protector - #612
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Some distro-packaged compilers enable Stack Smashing Protection (SSP) by default, even with -ffreestanding. If you build Microkit with such a compiler for the same architecture as your host (i.e. using the native rather than a cross toolchain), linking fails with: ``` ld.lld: error: undefined symbol: __stack_chk_fail >>> referenced by util.c:0 (... /monitor/src/util.c:0) ... ``` This is fixed this by building libmicrokit, loader and monitor with -fno-stack-protector. Signed-off-by: Bill Nguyen <bill.nguyen@unsw.edu.au>
midnightveil
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Sep 28, 2026
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I hate how compilers do this...
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Some distro-packaged compilers enable Stack Smashing Protection (SSP) by default, even with -ffreestanding.
If you build Microkit with such a compiler for the same architecture as your host (i.e. using the native rather than a cross toolchain), linking fails with:
This is fixed this by building libmicrokit, loader and monitor with -fno-stack-protector.