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* [Qemu-devel] [PATCH v8 0/9] Shared Library Module Support
@ 2013-09-13  8:38 Fam Zheng
  2013-09-13  8:38 ` [Qemu-devel] [PATCH v8 1/9] ui/Makefile.objs: delete unnecessary cocoa.o dependency Fam Zheng
                   ` (8 more replies)
  0 siblings, 9 replies; 16+ messages in thread
From: Fam Zheng @ 2013-09-13  8:38 UTC (permalink / raw)
  To: qemu-devel; +Cc: peter.maydell, famz, mjt, alex, pbonzini, vilanova, rth

This series implements feature of shared object building as described in:

http://wiki.qemu.org/Features/Modules

The main idea behind modules is to isolate dependencies on third party
libraries from qemu executables, such as libglusterfs or librbd, so that the
end users can install core qemu package with fewer dependencies.  And only for
those who want to use particular modules, need they install qemu-foo
sub-package, which in turn requires libbar and libbiz packages.

It's implemented in three steps:

1. The first patches fix current build system to correctly handle nested
   variables and object specific options:

    [01/09] ui/Makefile.objs: delete unnecessary cocoa.o dependency
    [02/09] make.rule: fix $(obj) to a real relative path
    [03/09] rule.mak: allow per object cflags and libs

2. The Makefile changes adds necessary options and rules to build DSO objects:

    [04/09] build-sys: introduce common-obj-m and block-obj-m for DSO

3. The next patch adds code to load modules from installed directory:

    [05/09] module: implement module loading function
    [06/09] module: add configurable module whitelist

A few more changes are following to complete it:

    [07/09] Makefile: install modules with "make install"
    [08/09] .gitignore: ignore module related files (dll, so, mo)

In the end of series, the block drivers are converted:

    [09/09] block: convert block drivers linked with libs to modules

v8: This version introduces two runtime loading checks:
    * Module init function no longer with __attribute__((constructor)), and
      mangled with per configure fingerprint. See patch 05.
    * Module whitelist as configure option.

    [04] Link libqemustub.a to DSO. (iscsi needs qemu_get_vm_name).
         Fix single object module link.
         Fix extract-libs to also extract .o libs that'd be expanded later from
         .mo.
    [05] Add init function name mangling.
    [06] New.
    [07] Fix typo in "make install". [Daniel]



Fam Zheng (8):
  make.rule: fix $(obj) to a real relative path
  rule.mak: allow per object cflags and libs
  build-sys: introduce common-obj-m and block-obj-m for DSO
  module: implement module loading function
  module: add configurable module whitelist
  Makefile: install modules with "make install"
  .gitignore: ignore module related files (dll, so, mo)
  block: convert block drivers linked with libs to modules

Peter Maydell (1):
  ui/Makefile.objs: delete unnecessary cocoa.o dependency

 .gitignore            |  3 ++
 Makefile              | 28 +++++++++++++++-
 Makefile.objs         | 18 ++--------
 Makefile.target       | 21 +++++++++---
 block.c               |  1 +
 block/Makefile.objs   | 11 +++++-
 configure             | 85 ++++++++++++++++++++++++++++++++--------------
 include/qemu/module.h | 23 +++++++++++++
 rules.mak             | 84 +++++++++++++++++++++++++++++++++++++++-------
 scripts/create_config | 21 ++++++++++++
 ui/Makefile.objs      |  2 --
 util/module.c         | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++
 vl.c                  |  2 ++
 13 files changed, 330 insertions(+), 62 deletions(-)

-- 
1.8.3.1

^ permalink raw reply	[flat|nested] 16+ messages in thread

end of thread, other threads:[~2013-09-13 10:39 UTC | newest]

Thread overview: 16+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-09-13  8:38 [Qemu-devel] [PATCH v8 0/9] Shared Library Module Support Fam Zheng
2013-09-13  8:38 ` [Qemu-devel] [PATCH v8 1/9] ui/Makefile.objs: delete unnecessary cocoa.o dependency Fam Zheng
2013-09-13  8:38 ` [Qemu-devel] [PATCH v8 2/9] make.rule: fix $(obj) to a real relative path Fam Zheng
2013-09-13  8:38 ` [Qemu-devel] [PATCH v8 3/9] rule.mak: allow per object cflags and libs Fam Zheng
2013-09-13  8:38 ` [Qemu-devel] [PATCH v8 4/9] build-sys: introduce common-obj-m and block-obj-m for DSO Fam Zheng
2013-09-13  8:38 ` [Qemu-devel] [PATCH v8 5/9] module: implement module loading function Fam Zheng
2013-09-13  9:56   ` Alex Bligh
2013-09-13 10:02     ` Paolo Bonzini
2013-09-13 10:38       ` Alex Bligh
2013-09-13 10:05     ` Fam Zheng
2013-09-13  8:38 ` [Qemu-devel] [PATCH v8 6/9] module: add configurable module whitelist Fam Zheng
2013-09-13  9:03   ` Daniel P. Berrange
2013-09-13  9:57     ` Fam Zheng
2013-09-13  8:38 ` [Qemu-devel] [PATCH v8 7/9] Makefile: install modules with "make install" Fam Zheng
2013-09-13  8:38 ` [Qemu-devel] [PATCH v8 8/9] .gitignore: ignore module related files (dll, so, mo) Fam Zheng
2013-09-13  8:38 ` [Qemu-devel] [PATCH v8 9/9] block: convert block drivers linked with libs to modules Fam Zheng

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