Comments (7)
thresheek
commented on August 30, 2024
FWIW I can not reproduce with the same docker image as used on Alpine pipeline linked in #936 (comment) - running locally on Ubuntu 22.04 aarch64 host.
Output of build/autoconf.err will help.
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ac000
commented on August 30, 2024
Thanks for trying that. There is definitely something very broken in this case, from one of the failed builds
checking for endianness ... not found
checking for int size ... not found
checking for long size ... not found
checking for long long size ... not found
checking for void * size ... not found
checking for size_t size ... not found
checking for off_t size ... not found
checking for time_t size ... not found
checking for C99 variadic macro ... not found
checking for GCC variadic macro ... not found
checking for GCC __builtin_expect() ... not found
checking for GCC __builtin_unreachable() ... not found
checking for GCC __builtin_prefetch() ... not found
checking for GCC __builtin_clz() ... not found
checking for GCC __builtin_popcount() ... not found
checking for GCC __attribute__ visibility ... not found
checking for GCC __attribute__ aligned ... not found
checking for GCC __attribute__ malloc ... not found
checking for GCC __attribute__ packed ... not found
checking for GCC __attribute__ unused ... not found
checking for GCC builtin atomic operations ... not found
checking for Solaris builtin atomic operations ... not found
checking for xlC builtin atomic operations ... not found
Absolutely nothing worked!
@andypost as @thresheek says, if you could post the build/autoconf.err file from one of the failed builds, that may shed some light on the matter.
However it looks like clang is very broken on these systems.
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andypost
commented on August 30, 2024
@ac000 here's full log of build env https://gist.github.com/andypost/bfeb0f21637a0a2463c00151eb429e69
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ac000
commented on August 30, 2024
Thanks.
Heh. What's fix-clang.patch?
But it looks like all the tests are failing due to the unknown -fstack-clash-protection option.
checking for endianness
clang-16: error: argument unused during compilation: '-fstack-clash-protection' [-Werror,-Wunused-command-line-argument]
I don't know where that actually comes from. I can't see it set anywhere in Unit. There are other options like -Os which I can't see set in Unit.
As to fstack-clash-protection it looks like it is only implemented on some platforms currently
https://blog.llvm.org/posts/2021-01-05-stack-clash-protection/
https://reviews.llvm.org/D96007
So we need to find where this is coming from.
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ac000
commented on August 30, 2024
On Alpine Linux, this is the command I'm seeing run for these tests...
clang -pipe -fPIC -fvisibility=hidden -O -W -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -fstrict-aliasing -Wstrict-overflow=5 -Wmissing-prototypes -Werror -g -o build/autotest build/autotest.c
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andypost
commented on August 30, 2024
Probably builders/CI configured this way, I found other packages using it and now it pass https://gitlab.alpinelinux.org/alpine/aports/-/pipelines/178897
case "$CARCH" in
arm*|aarch64|riscv64)
export CFLAGS="${CFLAGS/-fstack-clash-protection}"
;;
esacfrom unit.
ac000
commented on August 30, 2024
OK, cool. I'll go ahead and close this then.
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