Re: [Qemu-devel] [PATCH v2 0/5] disas: add libvixl to support A64 disassembly

[Richard Henderson <rth@twiddle.net>]

On 01/28/2014 03:45 AM, Peter Maydell wrote:
> Ping for review/testing/comments on this version, please?

I skipped the contents of libvixl itself, but the configure
and interface changes look ok to me.

Reviewed-by: Richard Henderson <rth@twiddle.net>


r~


> 
> thanks
> -- PMM
> 
> On 16 January 2014 11:13, Peter Maydell <peter.maydell@linaro.org> wrote:
>> Hi. This is a rebased and mildly cleaned up version of Claudio's
>> RFC patchset from last year to add libvixl to QEMU and use it
>> for A64 disassembly.
>>
>> NOTE NOTE NOTE
>>  * we now link with g++, not gcc (even if the target doesn't
>>    happen to need the A64 disassembler, since it's a bit hard
>>    to tell whether there's a C++-source .o file in the link)
>>  * I've tested Linux (including static link of linux-user) and
>>    MacOS hosts, but not Windows
>>  * if you have a visceral dislike of the idea of C++ in the
>>    QEMU binary now would be a good time to say OMG WTF BBQ
>>
>>
>> Changes v1 -> v2:
>>  * fixed minor libvixl bugs that meant it didn't build on 32 bit
>>    hosts or on Windows
>>  * only import the files we need from libvixl, rather than
>>    pulling in 10000 lines of code we never even compile
>>  * merge aarch64-cxx.cc and aarch64.c into one file
>>  * rename 'aarch64' to 'A64' since the instruction set we're
>>    disassembling here is named A64, not AArch64
>>  * tidied the makefiles a little so we only apply the libvixl
>>    specific flags to those files
>>
>> Changes RFC -> v1:
>>  * some support for C++ compilation is already in master, so
>>    the rules.mak changes are smaller and simpler
>>  * I've fixed the output to better fit in a qemu debug log trace
>>  * I simplified the interface between aarch64-cxx.cc and aarch64.c
>>    a little bit
>>  * correctly handle the "no C++ compiler, so no A64 disassembler"
>>    build case
>>  * added support for using this as a disassembler for A64 targets
>>    as well as hosts
>>
>> This patchset sits on top of target-arm.next.
>> You can find a git tree here:
>>  git://git.linaro.org/people/peter.maydell/qemu-arm.git a64-vixl
>> web UI:
>>  https://git.linaro.org/people/peter.maydell/qemu-arm.git/shortlog/refs/heads/a64-vixl
>>
>>
>> Claudio Fontana (1):
>>   disas: Implement disassembly output for A64
>>
>> Peter Maydell (4):
>>   rules.mak: Support .cc as a C++ source file suffix
>>   rules.mak: Link with C++ if we have a C++ compiler
>>   disas: Add subset of libvixl sources for A64 disassembler
>>   disas/libvixl: Fix upstream libvixl compilation issues
>>
>>  configure                             |    4 +
>>  disas.c                               |   14 +-
>>  disas/Makefile.objs                   |    5 +
>>  disas/arm-a64.cc                      |   87 ++
>>  disas/libvixl/LICENCE                 |   30 +
>>  disas/libvixl/Makefile.objs           |    8 +
>>  disas/libvixl/a64/assembler-a64.h     | 1784 +++++++++++++++++++++++++++++++++
>>  disas/libvixl/a64/constants-a64.h     | 1104 ++++++++++++++++++++
>>  disas/libvixl/a64/cpu-a64.h           |   56 ++
>>  disas/libvixl/a64/decoder-a64.cc      |  712 +++++++++++++
>>  disas/libvixl/a64/decoder-a64.h       |  198 ++++
>>  disas/libvixl/a64/disasm-a64.cc       | 1678 +++++++++++++++++++++++++++++++
>>  disas/libvixl/a64/disasm-a64.h        |  109 ++
>>  disas/libvixl/a64/instructions-a64.cc |  238 +++++
>>  disas/libvixl/a64/instructions-a64.h  |  344 +++++++
>>  disas/libvixl/globals.h               |   65 ++
>>  disas/libvixl/platform.h              |   43 +
>>  disas/libvixl/utils.cc                |  120 +++
>>  disas/libvixl/utils.h                 |  126 +++
>>  include/disas/bfd.h                   |    1 +
>>  rules.mak                             |   14 +-
>>  target-arm/translate-a64.c            |    2 +-
>>  22 files changed, 6736 insertions(+), 6 deletions(-)
>>  create mode 100644 disas/arm-a64.cc
>>  create mode 100644 disas/libvixl/LICENCE
>>  create mode 100644 disas/libvixl/Makefile.objs
>>  create mode 100644 disas/libvixl/a64/assembler-a64.h
>>  create mode 100644 disas/libvixl/a64/constants-a64.h
>>  create mode 100644 disas/libvixl/a64/cpu-a64.h
>>  create mode 100644 disas/libvixl/a64/decoder-a64.cc
>>  create mode 100644 disas/libvixl/a64/decoder-a64.h
>>  create mode 100644 disas/libvixl/a64/disasm-a64.cc
>>  create mode 100644 disas/libvixl/a64/disasm-a64.h
>>  create mode 100644 disas/libvixl/a64/instructions-a64.cc
>>  create mode 100644 disas/libvixl/a64/instructions-a64.h
>>  create mode 100644 disas/libvixl/globals.h
>>  create mode 100644 disas/libvixl/platform.h
>>  create mode 100644 disas/libvixl/utils.cc
>>  create mode 100644 disas/libvixl/utils.h
>>
>> --
>> 1.8.5