On 9/24/2026 1:43 PM, Bernhard Beschow wrote:
> 
> 
> Am 24. September 2026 20:20:12 UTC schrieb Pierrick Bouvier 
> <[email protected]>:
>> Some compilers enable stack protection by default (for instance, on
>> archlinux). This produce a compilation error on some of our tests:
>>
>> /usr/sbin/x86_64-linux-gnu-gcc tests/tcg/multiarch/system/interrupt.c -o 
>> tests/tcg/x86_64-softmmu-interrupt.test -static -MMD -MF 
>> tests/tcg/x86_64-softmmu-interrupt.d -Wall -Werror -O0 -g 
>> -fno-strict-aliasing -nostdlib -ffreestanding -Wa,--noexecstack -I 
>> tests/tcg/x86_64/system/../../minilib 
>> tests/tcg/x86_64/system/../../minilib/printf.c 
>> ../tests/tcg/x86_64/system/boot.S -Wl,-T 
>> ../tests/tcg/x86_64/system/kernel.ld -Wl,-melf_x86_64 
>> -Wl,--no-warn-rwx-segments -Wl,--build-id=none -lgcc
>> /usr/bin/ld: /tmp/ccs11W6S.o: in function `print_num':
>> tests/tcg/x86_64/system/../../minilib/printf.c:45:(.text+0xec): undefined 
>> reference to `__stack_chk_fail'
>> /usr/bin/ld: /tmp/ccs11W6S.o: in function `ml_printf':
>> tests/tcg/x86_64/system/../../minilib/printf.c:136:(.text+0x549): undefined 
>> reference to `__stack_chk_fail'
>> collect2: error: ld returned 1 exit status
>>
>> This flag has been previously added, but was removed when moving tcg
>> tests to meson, with the goal to identify which systems require it.
>> https://gitlab.com/qemu-project/qemu/-/commit/580731dcc87eb27a2b0dc20ec331f1ce51864c97
>> One of these system is archlinux.
>>
>> Thus, disable stack protection by default. It has no impact on tests
>> results.
> 
> Thanks for providing the working patch so blazingly fast!
> 
> Tested-by: Bernhard Beschow <[email protected]>
>

I'll pull it tomorrow with other series on tcg-tests 👍

>>
>> Signed-off-by: Pierrick Bouvier <[email protected]>
>> ---
>> tests/tcg/meson.build | 6 ++++++
>> 1 file changed, 6 insertions(+)
>>
>> diff --git a/tests/tcg/meson.build b/tests/tcg/meson.build
>> index 75f0a52fd22..35b3dff4ef2 100644
>> --- a/tests/tcg/meson.build
>> +++ b/tests/tcg/meson.build
>> @@ -426,6 +426,12 @@ foreach target, plan: tcg_tests
>>                                       '-MMD', '-MF', '@DEPFILE@',
>>                                       '-Wall', '-Werror',
>>                                       '-O0', '-g', '-fno-strict-aliasing',
>> +                                      # Some host compilers (like archlinux)
>> +                                      # have stack protection enabled by 
>> default.
>> +                                      # This results in a linking error for 
>> some
>> +                                      # of our tests due to missing symbol
>> +                                      # __stack_chk_fail. Thus, disable it.
>> +                                      '-fno-stack-protector',
>>                                       cflags],
>>                             depfile: exe_name + '.d',
>>                             output: exe_name + '.test',


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