[PULL v2 00/46] Next round of Meson bugfixes and cleanups

[PULL v2 00/46] Next round of Meson bugfixes and cleanups

[Paolo Bonzini]

The following changes since commit 227de21ed0759e275a469394af72c999d0134bb5:

  Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20200903' into staging (2020-09-05 15:30:41 +0100)

are available in the Git repository at:

  https://gitlab.com/bonzini/qemu.git tags/for-upstream

for you to fetch changes up to 6264b35324d3766d3c2ff369c4e8ecba8bd5b571:

  meson: remove linkage of sdl to baum (2020-09-06 19:50:57 +0200)

----------------------------------------------------------------
meson related:
* convert unit tests
* bugfixes for mtest2make
* miscellaneous bugfixes
* dead code removal and configure cleanups
* oss-fuzz fixes
* msys fixes

----------------------------------------------------------------
Alexander Bulekov (3):
      oss-fuzz: fix rpath
      meson: specify fuzz linker script as a project arg
      fuzz: Add support for custom fuzzing library

Bruce Rogers (1):
      meson: remove linkage of sdl to baum

Marc-André Lureau (12):
      meson: build qapi tests library
      meson: declare tasn1 dependency
      meson: declare keyutils dependency
      meson: convert qht-bench
      meson: move keyutils dependency check
      meson: remove old socket_scm_helper rule
      meson: convert vhost-user-bridge
      meson: convert atomic*-bench
      tests: do not print benchmark output to stdout
      tests/migration/stress: remove unused exit_success
      meson: fix migration/stress compilation with glibc>=2.30
      meson: convert migration/initrd-stress

Paolo Bonzini (25):
      qemu-iotests: move check-block back to Makefiles
      mtest2make: split environment from test command
      mtest2make: split working directory from test command
      mtest2make: hide output of successful tests
      mtest2make: unify tests that appear in multiple suites
      meson: remove b_lundef option
      configure: do not include absolute paths in -I and -L paths
      configure: include cross sdl2-config in meson cross file
      ninjatool: use constant names for stamp files
      meson: fix libqos linking
      meson: convert the speed tests
      configure: remove dead code for in-tree builds
      meson: compute config_all_devices directly
      Makefile: remove dead variables and includes
      Makefile: inline the relevant parts of rules.mak
      configure: move disassembler configuration to meson
      configure: move C++ compiler handling to meson
      meson: keep all compiler flags detection together
      configure: move -ldl test to meson
      configure: remove unnecessary libm test
      configure: do not look for install(1)
      meson: get glib compilation flags from GLIB_CFLAGS
      configure: do not include dependency flags in QEMU_CFLAGS and LIBS
      configure: drop dead variables and functions
      docs: suggest Meson replacements for various configure functions

Thomas Huth (2):
      tests/Makefile: test-image-locking needs CONFIG_POSIX
      meson: convert the unit tests

Yonggang Luo (3):
      tests: handling signal on win32 properly
      configure: update dtc submodule
      meson: Convert undefsym.sh to undefsym.py

 .gitignore                       |   2 -
 Makefile                         |  63 +++---
 Makefile.objs                    |  34 ----
 accel/tcg/meson.build            |   2 +-
 chardev/meson.build              |   4 +-
 configure                        | 353 ++++-----------------------------
 disas/meson.build                |   4 +-
 docs/devel/build-system.rst      |  18 +-
 hw/arm/meson.build               |   2 +-
 hw/mips/meson.build              |   2 +-
 hw/riscv/meson.build             |   2 +-
 meson.build                      | 152 ++++++++++----
 monitor/meson.build              |   2 +-
 rules.mak                        | 158 ---------------
 scripts/empty.c                  |   6 +
 scripts/grepy.sh                 |   3 -
 scripts/mtest2make.py            | 100 +++++-----
 scripts/ninjatool.py             |   8 +-
 scripts/oss-fuzz/build.sh        |   2 +-
 scripts/test-driver.py           |  35 ++++
 scripts/undefsym.py              |  49 +++++
 scripts/undefsym.sh              |  20 --
 tests/Makefile.include           | 414 ++-------------------------------------
 tests/benchmark-crypto-cipher.c  |   8 +-
 tests/benchmark-crypto-hash.c    |   2 +-
 tests/benchmark-crypto-hmac.c    |   8 +-
 tests/docker/Makefile.include    |   4 +
 tests/include/meson.build        |  16 ++
 tests/meson.build                | 257 ++++++++++++++++++++++++
 tests/migration/initrd-stress.sh |  10 +
 tests/migration/meson.build      |  14 ++
 tests/migration/stress.c         |  15 +-
 tests/qemu-iotests/meson.build   |   4 -
 tests/qtest/fuzz/meson.build     |   7 +-
 tests/qtest/libqos/meson.build   |   9 +-
 tests/tcg/Makefile.qemu          |   2 -
 tests/test-crypto-secret.c       |  10 +-
 tests/test-qga.c                 |   2 +-
 tests/test-replication.c         |   4 +
 39 files changed, 686 insertions(+), 1121 deletions(-)
 delete mode 100644 Makefile.objs
 delete mode 100644 rules.mak
 create mode 100644 scripts/empty.c
 delete mode 100755 scripts/grepy.sh
 create mode 100644 scripts/test-driver.py
 create mode 100644 scripts/undefsym.py
 delete mode 100755 scripts/undefsym.sh
 create mode 100644 tests/include/meson.build
 create mode 100755 tests/migration/initrd-stress.sh
 create mode 100644 tests/migration/meson.build
-- 
2.26.2

[PULL v2 01/46] qemu-iotests: move check-block back to Makefiles

[Paolo Bonzini]

check-block has its own test harness, unlike every other test.  If
we capture its output, as is in general nicer to do without V=1,
there will be no sign of progress.  So for lack of a better option
just move the invocation of the test back to Makefile rules.

As a side effect, this will also fix "make check" in --disable-tools
builds, as they were trying to run qemu-iotests without having
made qemu-img before.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build                    |  1 -
 tests/Makefile.include         | 15 ++++++++++++---
 tests/qemu-iotests/meson.build |  4 ----
 3 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/meson.build b/meson.build
index 5aaa364730..85f3c01b98 100644
--- a/meson.build
+++ b/meson.build
@@ -1097,7 +1097,6 @@ if have_tools
              dependencies: [block, qemuutil], install: true)
   qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
                dependencies: [block, qemuutil], install: true)
-  qemu_block_tools += [qemu_img, qemu_io, qemu_nbd]
 
   subdir('storage-daemon')
   subdir('contrib/rdmacm-mux')
diff --git a/tests/Makefile.include b/tests/Makefile.include
index 9ac8f5b86a..08301f5bc9 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -468,7 +468,6 @@ check-tcg: $(RUN_TCG_TARGET_RULES)
 .PHONY: clean-tcg
 clean-tcg: $(CLEAN_TCG_TARGET_RULES)
 
-
 # Python venv for running tests
 
 .PHONY: check-venv check-acceptance
@@ -523,8 +522,18 @@ check-acceptance: check-venv $(TESTS_RESULTS_DIR) get-vm-images
 # Consolidated targets
 
 .PHONY: check-block check-unit check check-clean get-vm-images
-check-block:
-check-build: build-unit
+check:
+
+ifeq ($(CONFIG_TOOLS)$(CONFIG_POSIX),yy)
+QEMU_IOTESTS_HELPERS-$(CONFIG_LINUX) = tests/qemu-iotests/socket_scm_helper$(EXESUF)
+check: check-block
+check-block: $(SRC_PATH)/tests/check-block.sh qemu-img$(EXESUF) \
+		qemu-io$(EXESUF) qemu-nbd$(EXESUF) $(QEMU_IOTESTS_HELPERS-y) \
+		$(patsubst %-softmmu,qemu-system-%,$(filter %-softmmu,$(TARGET_DIRS)))
+	@$<
+endif
+
+check-build: build-unit $(QEMU_IOTESTS_HELPERS-y)
 
 check-clean:
 	rm -rf $(check-unit-y) tests/*.o tests/*/*.o $(QEMU_IOTESTS_HELPERS-y)
diff --git a/tests/qemu-iotests/meson.build b/tests/qemu-iotests/meson.build
index 3de09fb8fa..60470936b4 100644
--- a/tests/qemu-iotests/meson.build
+++ b/tests/qemu-iotests/meson.build
@@ -4,7 +4,3 @@ if 'CONFIG_LINUX' in config_host
 else
     socket_scm_helper = []
 endif
-test('qemu-iotests', sh, args: [files('../check-block.sh')],
-     depends: [qemu_block_tools, emulators, socket_scm_helper],
-     suite: 'block', timeout: 10000)
-
-- 
2.26.2

Re: [PULL v2 01/46] qemu-iotests: move check-block back to Makefiles

[Max Reitz]

[-- Attachment #1.1: Type: text/plain, Size: 1485 bytes --]

On 06.09.20 19:53, Paolo Bonzini wrote:
> check-block has its own test harness, unlike every other test.  If
> we capture its output, as is in general nicer to do without V=1,
> there will be no sign of progress.  So for lack of a better option
> just move the invocation of the test back to Makefile rules.
> 
> As a side effect, this will also fix "make check" in --disable-tools
> builds, as they were trying to run qemu-iotests without having
> made qemu-img before.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>  meson.build                    |  1 -
>  tests/Makefile.include         | 15 ++++++++++++---
>  tests/qemu-iotests/meson.build |  4 ----
>  3 files changed, 12 insertions(+), 8 deletions(-)

I’m not entirely sure why (or I would’ve sent a patch myself), but this
breaks all iotests using the socket_scm_helper program unless one runs
make check-block before (or make tests/qemu-iotests/socket_scm_helper
specifically).

It seems like the socket_scm_helper is now only built as a dependency of
check-block, instead of all the time.  That’s a bit of a shame.
(The obvious workaround of course is to specifically build the
socket_scm_helper, but that doesn’t seem right.)

As a reproducer:

[delete build directory, or most importantly the socket_scm_helper]
[configure]
[make]
$ cd tests/qemu-iotests
$ ./check -nbd 147
[...]
+qemu.machine.QEMUMachineError: socket_scm_helper does not exist
[...]

Max


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Re: [PULL v2 01/46] qemu-iotests: move check-block back to Makefiles

[Max Reitz]

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On 11.09.20 12:58, Max Reitz wrote:
> On 06.09.20 19:53, Paolo Bonzini wrote:
>> check-block has its own test harness, unlike every other test.  If
>> we capture its output, as is in general nicer to do without V=1,
>> there will be no sign of progress.  So for lack of a better option
>> just move the invocation of the test back to Makefile rules.
>>
>> As a side effect, this will also fix "make check" in --disable-tools
>> builds, as they were trying to run qemu-iotests without having
>> made qemu-img before.
>>
>> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
>> ---
>>  meson.build                    |  1 -
>>  tests/Makefile.include         | 15 ++++++++++++---
>>  tests/qemu-iotests/meson.build |  4 ----
>>  3 files changed, 12 insertions(+), 8 deletions(-)
> 
> I’m not entirely sure why (or I would’ve sent a patch myself)

On closer inspection it seems like it’s because of the
“build_by_default: false”, which seems like a rather conscious decision.
 Was I only lucky that the socket_scm_helper was built by default so
far?  Should I have explicitly built it all this time?

Max


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Re: [PULL v2 01/46] qemu-iotests: move check-block back to Makefiles

[Paolo Bonzini]

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On 11/09/20 13:05, Max Reitz wrote:
> On closer inspection it seems like it’s because of the
> “build_by_default: false”, which seems like a rather conscious decision.
>  Was I only lucky that the socket_scm_helper was built by default so
> far?  Should I have explicitly built it all this time?

Yes, you were lucky but that's not a reason not to change it.

The problem with touching a whole build system is that you are not going
to test everybody's usecase, and yours is definitely reasonable and not
"M-x butterfly" territory.

Paolo


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Re: [PULL v2 01/46] qemu-iotests: move check-block back to Makefiles

[Paolo Bonzini]

[-- Attachment #1.1: Type: text/plain, Size: 1279 bytes --]

On 11/09/20 12:58, Max Reitz wrote:
> It seems like the socket_scm_helper is now only built as a dependency of
> check-block, instead of all the time.  That’s a bit of a shame.
> (The obvious workaround of course is to specifically build the
> socket_scm_helper, but that doesn’t seem right.)

Or just remove the build_by_default: false here:

    socket_scm_helper = executable('socket_scm_helper', 'socket_scm_helper.c',
                                    build_by_default: false)


I guess now is a good time to decide which executables to build by
default (static_libraries should never be built by default) and
document it in docs/devel/build-system.rst.

Right now, the only executables that aren't built by default are:

- rdmacm-mux and vhost-user-blk because they're broken

- gen-features because it's built anyway for s390 targets

- vhost-user-bridge, and that probably should be changed

- socket_scm_helper, which could/should be changed too

- fptest, not sure why that works at all O:-)  Tests are built by
default (and they trigger coverity quite a bit).  We will be
able to fix that, and at the same time respect the "tests(depends: ...)"
argument instead of just having "check: all", when meson 0.56.0
comes out.

Paolo


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Re: [PULL v2 00/46] Next round of Meson bugfixes and cleanups

[Peter Maydell]

On Sun, 6 Sep 2020 at 18:56, Paolo Bonzini <pbonzini@redhat.com> wrote:
>
> The following changes since commit 227de21ed0759e275a469394af72c999d0134bb5:
>
>   Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20200903' into staging (2020-09-05 15:30:41 +0100)
>
> are available in the Git repository at:
>
>   https://gitlab.com/bonzini/qemu.git tags/for-upstream
>
> for you to fetch changes up to 6264b35324d3766d3c2ff369c4e8ecba8bd5b571:
>
>   meson: remove linkage of sdl to baum (2020-09-06 19:50:57 +0200)
>
> ----------------------------------------------------------------
> meson related:
> * convert unit tests
> * bugfixes for mtest2make
> * miscellaneous bugfixes
> * dead code removal and configure cleanups
> * oss-fuzz fixes
> * msys fixes

Build failure, Windows (this is the second "uint" type usage
I've seen today...):

../../tests/test-vmstate.c: In function 'int_cmp':
../../tests/test-vmstate.c:884:5: error: unknown type name 'uint'
     uint ua = GPOINTER_TO_UINT(a);
     ^
../../tests/test-vmstate.c:885:5: error: unknown type name 'uint'
     uint ub = GPOINTER_TO_UINT(b);
     ^
Makefile.ninja:5443: recipe for target
'tests/test-vmstate.exe.p/test-vmstate.c.obj' failed
make: *** [tests/test-vmstate.exe.p/test-vmstate.c.obj] Error 1
make: *** Waiting for unfinished jobs....
../../tests/test-util-filemonitor.c: In function 'test_file_monitor_events':
../../tests/test-util-filemonitor.c:620:17: error: too many arguments
to function 'mkdir'
             if (mkdir(pathsrc, 0700) < 0) {
                 ^
In file included from
/usr/lib/mxe/usr/x86_64-w64-mingw32.shared/include/unistd.h:10:0,
                 from /home/petmay01/qemu-for-merges/include/qemu/osdep.h:93,
                 from ../../tests/test-util-filemonitor.c:21:
/usr/lib/mxe/usr/x86_64-w64-mingw32.shared/include/io.h:280:15: note:
declared here
   int __cdecl mkdir (const char *) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
               ^



Build failure, OpenBSD:

In file included from ../src/hw/arm/nseries.c:30:
In file included from /home/qemu/qemu-test.yhbDti/src/include/hw/arm/omap.h:24:
In file included from
/home/qemu/qemu-test.yhbDti/src/include/hw/input/tsc2xxx.h:14:
/home/qemu/qemu-test.yhbDti/src/include/ui/console.h:11:11: fatal
error: 'epoxy/gl.h' file not found
# include <epoxy/gl.h>
          ^~~~~~~~~~~~
1 error generated.
gmake: *** [Makefile.ninja:1735:
libqemu-aarch64-softmmu.fa.p/hw_arm_nseries.c.o] Error 1



Odd warning on most but not all of the builds, though they went on to
complete OK:

make: Entering directory '/home/peter.maydell/qemu-freebsd/build'
/home/peter.maydell/qemu-freebsd/tests/Makefile.include:144: warning:
overriding recipe for target 'check-block'
Makefile.mtest:1345: warning: ignoring old recipe for target 'check-block'
config-host.mak is out-of-date, running configure
cross containers  no

NOTE: guest cross-compilers enabled: aarch64-linux-gnu-gcc cc
aarch64-linux-gnu-gcc cc
/usr/bin/python3 /home/peter.maydell/qemu-freebsd/meson/meson.py
--internal regenerate /home/peter.maydell/qemu-freebsd
/home/peter.maydell/qemu-freebsd/build --backend ninja
The Meson build system
Version: 0.55.1
[etc]


x86-64 clang build failed at the link stage (this is config we've
talked about before with
'../../configure' '--cc=clang' '--cxx=clang++' '--enable-gtk'
'--extra-cflags=-fsanitize=undefined  -fno-sanitize=shift-base
-Werror'
but where the clang++ doesn't work because the right libstdc++ happens
not to be present):

Linking target qemu-alpha
libcommon.fa.p/cpus-common.c.o: In function `cpu_list_add':
/home/petmay01/linaro/qemu-for-merges/build/clang/../../cpus-common.c:80:
undefined reference to `__ubsan_handle_type_mismatch_v1'
/home/petmay01/linaro/qemu-for-merges/build/clang/../../cpus-common.c:80:
undefined reference to `__ubsan_handle_type_mismatch_v1'
libcommon.fa.p/cpus-common.c.o: In function `cpu_get_free_index':
/home/petmay01/linaro/qemu-for-merges/build/clang/../../cpus-common.c:68:
undefined reference to `__ubsan_handle_type_mismatch_v1'
/home/petmay01/linaro/qemu-for-merges/build/clang/../../cpus-common.c:68:
undefined reference to `__ubsan_handle_type_mismatch_v1'
/home/petmay01/linaro/qemu-for-merges/build/clang/../../cpus-common.c:67:
undefined reference to `__ubsan_handle_type_mismatch_v1'
libcommon.fa.p/cpus-common.c.o:/home/petmay01/linaro/qemu-for-merges/build/clang/../../cpus-common.c:67:
more undefined references to `__ubsan_handle_type_mismatch_v1' follow
collect2: error: ld returned 1 exit status

thanks
-- PMM

Re: [PULL v2 00/46] Next round of Meson bugfixes and cleanups

[罗勇刚(Yonggang Luo)]

[-- Attachment #1: Type: text/plain, Size: 5102 bytes --]

On Mon, Sep 7, 2020 at 2:35 AM Peter Maydell <peter.maydell@linaro.org>
wrote:

> On Sun, 6 Sep 2020 at 18:56, Paolo Bonzini <pbonzini@redhat.com> wrote:
> >
> > The following changes since commit
> 227de21ed0759e275a469394af72c999d0134bb5:
> >
> >   Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20200903' into
> staging (2020-09-05 15:30:41 +0100)
> >
> > are available in the Git repository at:
> >
> >   https://gitlab.com/bonzini/qemu.git tags/for-upstream
> >
> > for you to fetch changes up to 6264b35324d3766d3c2ff369c4e8ecba8bd5b571:
> >
> >   meson: remove linkage of sdl to baum (2020-09-06 19:50:57 +0200)
> >
> > ----------------------------------------------------------------
> > meson related:
> > * convert unit tests
> > * bugfixes for mtest2make
> > * miscellaneous bugfixes
> > * dead code removal and configure cleanups
> > * oss-fuzz fixes
> > * msys fixes
>
> Build failure, Windows (this is the second "uint" type usage
> I've seen today...):
>
> ../../tests/test-vmstate.c: In function 'int_cmp':
> ../../tests/test-vmstate.c:884:5: error: unknown type name 'uint'
>      uint ua = GPOINTER_TO_UINT(a);
>      ^
> ../../tests/test-vmstate.c:885:5: error: unknown type name 'uint'
>      uint ub = GPOINTER_TO_UINT(b);
>      ^
>
I've already fixes this issue, that patch can be quenued

> Makefile.ninja:5443: recipe for target
> 'tests/test-vmstate.exe.p/test-vmstate.c.obj' failed
> make: *** [tests/test-vmstate.exe.p/test-vmstate.c.obj] Error 1
> make: *** Waiting for unfinished jobs....
> ../../tests/test-util-filemonitor.c: In function
> 'test_file_monitor_events':
> ../../tests/test-util-filemonitor.c:620:17: error: too many arguments
> to function 'mkdir'
>              if (mkdir(pathsrc, 0700) < 0) {
>                  ^
> In file included from
> /usr/lib/mxe/usr/x86_64-w64-mingw32.shared/include/unistd.h:10:0,
>                  from
> /home/petmay01/qemu-for-merges/include/qemu/osdep.h:93,
>                  from ../../tests/test-util-filemonitor.c:21:
> /usr/lib/mxe/usr/x86_64-w64-mingw32.shared/include/io.h:280:15: note:
> declared here
>    int __cdecl mkdir (const char *) __MINGW_ATTRIB_DEPRECATED_MSVC2005;
>                ^
>
>
>
> Build failure, OpenBSD:
>
> In file included from ../src/hw/arm/nseries.c:30:
> In file included from
> /home/qemu/qemu-test.yhbDti/src/include/hw/arm/omap.h:24:
> In file included from
> /home/qemu/qemu-test.yhbDti/src/include/hw/input/tsc2xxx.h:14:
> /home/qemu/qemu-test.yhbDti/src/include/ui/console.h:11:11: fatal
> error: 'epoxy/gl.h' file not found
> # include <epoxy/gl.h>
>           ^~~~~~~~~~~~
> 1 error generated.
> gmake: *** [Makefile.ninja:1735:
> libqemu-aarch64-softmmu.fa.p/hw_arm_nseries.c.o] Error 1
>
>
>
> Odd warning on most but not all of the builds, though they went on to
> complete OK:
>
> make: Entering directory '/home/peter.maydell/qemu-freebsd/build'
> /home/peter.maydell/qemu-freebsd/tests/Makefile.include:144: warning:
> overriding recipe for target 'check-block'
> Makefile.mtest:1345: warning: ignoring old recipe for target 'check-block'
> config-host.mak is out-of-date, running configure
> cross containers  no
>
> NOTE: guest cross-compilers enabled: aarch64-linux-gnu-gcc cc
> aarch64-linux-gnu-gcc cc
> /usr/bin/python3 /home/peter.maydell/qemu-freebsd/meson/meson.py
> --internal regenerate /home/peter.maydell/qemu-freebsd
> /home/peter.maydell/qemu-freebsd/build --backend ninja
> The Meson build system
> Version: 0.55.1
> [etc]
>
>
> x86-64 clang build failed at the link stage (this is config we've
> talked about before with
> '../../configure' '--cc=clang' '--cxx=clang++' '--enable-gtk'
> '--extra-cflags=-fsanitize=undefined  -fno-sanitize=shift-base
> -Werror'
> but where the clang++ doesn't work because the right libstdc++ happens
> not to be present):
>
> Linking target qemu-alpha
> libcommon.fa.p/cpus-common.c.o: In function `cpu_list_add':
> /home/petmay01/linaro/qemu-for-merges/build/clang/../../cpus-common.c:80:
> undefined reference to `__ubsan_handle_type_mismatch_v1'
> /home/petmay01/linaro/qemu-for-merges/build/clang/../../cpus-common.c:80:
> undefined reference to `__ubsan_handle_type_mismatch_v1'
> libcommon.fa.p/cpus-common.c.o: In function `cpu_get_free_index':
> /home/petmay01/linaro/qemu-for-merges/build/clang/../../cpus-common.c:68:
> undefined reference to `__ubsan_handle_type_mismatch_v1'
> /home/petmay01/linaro/qemu-for-merges/build/clang/../../cpus-common.c:68:
> undefined reference to `__ubsan_handle_type_mismatch_v1'
> /home/petmay01/linaro/qemu-for-merges/build/clang/../../cpus-common.c:67:
> undefined reference to `__ubsan_handle_type_mismatch_v1'
>
> libcommon.fa.p/cpus-common.c.o:/home/petmay01/linaro/qemu-for-merges/build/clang/../../cpus-common.c:67:
> more undefined references to `__ubsan_handle_type_mismatch_v1' follow
> collect2: error: ld returned 1 exit status
>
> thanks
> -- PMM
>
>

-- 
         此致
礼
罗勇刚
Yours
    sincerely,
Yonggang Luo

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