Re: [Qemu-devel] [PATCH 0/3] proper locking on bitmap add/remove paths

[Vladimir Sementsov-Ogievskiy]

10.09.2019 23:37, address@hidden wrote:
> Patchew URL: https://patchew.org/QEMU/address@hidden/
> 
> 
> 
> Hi,
> 
> This series failed the docker-quick@centos7 build test. Please find the 
> testing commands and
> their output below. If you have Docker installed, you can probably reproduce 
> it
> locally.
> 
> === TEST SCRIPT BEGIN ===
> #!/bin/bash
> make docker-image-centos7 V=1 NETWORK=1
> time make docker-test-quick@centos7 SHOW_ENV=1 J=14 NETWORK=1
> === TEST SCRIPT END ===
> 
> libudev           no
> default devices   yes
> 
> warning: Python 2 support is deprecated
> warning: Python 3 will be required for building future versions of QEMU
> 
> NOTE: cross-compilers enabled:  'cc'
>    GEN     x86_64-softmmu/config-devices.mak.tmp
> ---
>    CC      block/qed-cluster.o
>    CC      block/qed-check.o
> /tmp/qemu-test/src/block/qcow2-bitmap.c: In function 
> 'qcow2_co_remove_persistent_dirty_bitmap':
> /tmp/qemu-test/src/block/qcow2-bitmap.c:502:8: error: 'bm' may be used 
> uninitialized in this function [-Werror=maybe-uninitialized]
>       if (bm == NULL) {
>          ^
> /tmp/qemu-test/src/block/qcow2-bitmap.c:1413:18: note: 'bm' was declared here
> 
> 
> The full log is available at
> http://patchew.org/logs/address@hidden/testing.docker-quick@centos7/?type=message.
> ---
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> Please send your feedback to address@hidden
> 

Who knows, how to clang Qemu?

I try with
./configure --target-list=x86_64-softmmu --enable-debug --disable-virtfs 
--enable-werror --audio-drv-list=oss --extra-cflags=-Wall --enable-sanitizers 
--cc=clang --cxx=clang++
make -j9

but get the following error:

/tmp/linuxboot_dma-6712c0.s: Assembler messages:
/tmp/linuxboot_dma-6712c0.s:473: Error: inconsistent uses of .cfi_sections
clang: error: assembler command failed with exit code 1 (use -v to see 
invocation)
make[1]: *** [linuxboot_dma.o] Error 1
make[1]: *** Waiting for unfinished jobs....
   SIGN    pc-bios/optionrom/linuxboot.bin
   LINK    ivshmem-client
/tmp/pvh_main-3bbc75.s: Assembler messages:
/tmp/pvh_main-3bbc75.s:651: Error: inconsistent uses of .cfi_sections
clang: error: assembler command failed with exit code 1 (use -v to see 
invocation)
make[1]: *** [pvh_main.o] Error 1
make: *** [pc-bios/optionrom/all] Error 2
make: *** Waiting for unfinished jobs....
make: *** wait: No child processes.  Stop.



-- 
Best regards,
Vladimir