On 10/03/2026 15.51, Peter Maydell wrote:
On Tue, 10 Mar 2026 at 13:47, Fabiano Rosas <[email protected]> wrote:
This gives me:
../tests/qtest/ast2700-sgpio-test.c: In function ‘test_output_pins’:
../tests/qtest/ast2700-sgpio-test.c:27:33: error: ‘sprintf’ may write a
terminating nul past the end of the destination
[-Werror=format-overflow=]
../tests/qtest/ast2700-sgpio-test.c: In function ‘test_irq_level_high’:
../tests/qtest/ast2700-sgpio-test.c:85:33: error: ‘sprintf’ may write a
terminating nul past the end of the destination
[-Werror=format-overflow=]
../tests/qtest/arm-cpu-features.c: In function
‘test_query_cpu_model_expansion_kvm’:
../tests/qtest/arm-cpu-features.c:578:35: error: ‘%u’ directive writing
between 1 and 10 bytes into a region of size 5
[-Werror=format-overflow=]
../configure
--target-list=x86_64-softmmu,i386-softmmu,aarch64-softmmu,arm-softmmu,ppc64-softmmu,s390x-softmmu,riscv64-softmmu,aarch64-linux-user,loongarch64-softmmu
--disable-plugins --enable-modules --enable-werror
--enable-trace-backends=log,dtrace --enable-debug --enable-docs
--enable-rust --enable-strict-rust-lints
gcc version 7.5.0 (SUSE Linux)
This is quite an old GCC, so it's probably less good at noticing
when there might be an overflow and when not (or it has bugs
that have been fixed in subsequent versions).
By the way, I think we likely could bump the minimum GCC version to a newer
level nowadays. GCC 7.4 was chosen for NetBSD 9 at that point in time:
https://gitlab.com/qemu-project/qemu/-/issues/614
https://gitlab.com/qemu-project/qemu/-/commit/3830df5f83b9b52d949676
... but since NetBSD 10 has been released since a while, we could likely
bump the minimum GCC version to 10.4 now, see:
https://cvsweb.netbsd.org/bsdweb.cgi/src/doc/3RDPARTY?rev=1.1905.2.14;content-type=text%2Fplain;only_with_tag=netbsd-10-0-RELEASE
WDYT?
Thomas
