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Subjectselftests broke upstream

Hi,

The x86 selftests build broke upstream:

triton:~/tip/tools/testing/selftests/x86> make
Makefile:44: warning: overriding recipe for target 'clean'
../lib.mk:51: warning: ignoring old recipe for target 'clean'
gcc -m32 -o /single_step_syscall_32 -O2 -g -std=gnu99 -pthread -Wall
single_step_syscall.c -lrt -ldl -lm
/usr/bin/ld: cannot open output file /single_step_syscall_32: Permission denied
collect2: error: ld returned 1 exit status
Makefile:47: recipe for target '/single_step_syscall_32' failed
make: *** [/single_step_syscall_32] Error 1

It used to be possible to build only the x86 testcases in that directory.

Another problem is that the pkeys testcases are still very noisy:

gcc -m64 -o /home/mingo/tip/tools/testing/selftests/x86/protection_keys_64 -O2 -g -std=gnu99 -pthread -Wall protection_keys.c -lrt -ldl
In file included from protection_keys.c:45:0:
pkey-helpers.h: In function ‘sigsafe_printf’:
pkey-helpers.h:41:3: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
write(1, dprint_in_signal_buffer, len);
^
protection_keys.c: In function ‘dumpit’:
protection_keys.c:407:3: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
write(1, buf, nr_read);
^
gcc -m64 -o /home/mingo/tip/tools/testing/selftests/x86/test_vdso_64 -O2 -g -std=gnu99 -pthread -Wall test_vdso.c -lrt -ldl
test_vdso.c: In function ‘main’:
test_vdso.c:98:37: warning: ‘node’ may be used uninitialized in this function [-Wmaybe-uninitialized]
if (!ret_vsys && (cpu_vsys != cpu || node_vsys != node))
^
test_vdso.c:78:12: note: ‘node’ was declared here
unsigned node;
^

I thought all this got already fixed?

Thanks,

Ingo

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