On Ubuntu Bionic 18.04 LTS clang binary points to the 6.0 version:
$ clang --version
clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
However we can install clang-10 from the bionic-updates stream [*]
and use it, to silent the following warnings:
CC pc-bios/s390-ccw/main.o
clang: warning: optimization flag '-fno-delete-null-pointer-checks' is not
supported [-Wignored-optimization-argument]
clang: warning: argument unused during compilation: '-msoft-float'
[-Wunused-command-line-argument]
/home/travis/build/qemu/qemu/pc-bios/s390-ccw/main.c:284:5: warning: no
previous prototype for function 'main' [-Wmissing-prototypes]
int main(void)
^
1 warning generated.
clang: warning: optimization flag '-fno-delete-null-pointer-checks' is not
supported [-Wignored-optimization-argument]
[*] https://packages.ubuntu.com/bionic-updates/clang-10
Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com>
---
However this doesn't resolve:
/home/travis/build/philmd/qemu/pc-bios/s390-ccw/jump2ipl.c:67:18: error:
invalid operand for instruction
asm volatile("lghi 1,1\n\t"
^
<inline asm>:1:7: note: instantiated into assembly here
lghi 1,1
^
/home/travis/build/philmd/qemu/pc-bios/s390-ccw/jump2ipl.c:67:29: error:
invalid operand for instruction
asm volatile("lghi 1,1\n\t"
^
<inline asm>:2:7: note: instantiated into assembly here
diag 1,1,0x308
^
2 errors generated.
Makefile:20: recipe for target 'jump2ipl.o' failed
make[1]: *** [jump2ipl.o] Error 1
(see https://travis-ci.org/github/philmd/qemu/jobs/770920106#L1803,
https://travis-ci.org/github/philmd/qemu/jobs/770920522#L1818 for
more errors).
---
.travis.yml | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/.travis.yml b/.travis.yml
index 4609240b5aa..9c0deea9a06 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -278,6 +278,7 @@ jobs:
compiler: clang
addons:
apt_packages:
+ - clang-10
- libaio-dev
- libattr1-dev
- libbrlapi-dev
@@ -303,7 +304,7 @@ jobs:
env:
- TEST_CMD="make check-unit"
- CONFIG="--disable-containers --disable-tcg --enable-kvm
- --disable-tools --host-cc=clang --cxx=clang++"
+ --disable-tools --host-cc=clang-10 --cc=clang-10
--cxx=clang++-10"
- UNRELIABLE=true
# Release builds
--
2.26.3
