Re: [Boost-bugs] [Boost C++ Libraries] #8266: context library don't compile for Mac OSX universal binary

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #8266: context library don't compile for Mac OSX universal binary
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-03-10 00:46:41

#8266: context library don't compile for Mac OSX universal binary
---------------------------------------------------+------------------------
  Reporter:  Serguei E. Leontiev <leo@…>           |       Owner:  olli                    
      Type:  Bugs                                  |      Status:  new                     
 Milestone:  To Be Determined                      |   Component:  context                 
   Version:  Boost 1.53.0                          |    Severity:  Problem                 
Resolution:                                        |    Keywords:  mac osx universal binary
---------------------------------------------------+------------------------

Comment (by Serguei E. Leontiev <leo@…>):

 Replying to [comment:2 olli]:
 > please post the '''complete''' output of command in libs/context/example
 (for instance):
 > b2 toolset= ... --debug-building
 > '''I highly recommend to provide regression tests for 32bit Mac OS X on
 boost-trunk! '''

 I don't have 32bit Mac OS X. I add line "using darwin : : c++ -arch ... :
 : ;" to file "tools/build/v2/user-config.jam" before each build. See
 attachment "b2-trunk-x86-32_64-example.log" (25 Kbyte).

 Before patch:[[BR]]
 ./bootstrap.sh --with-libraries=context --with-libraries=chrono[[BR]]

 For both, modern Xcode 4.6, and old Xcode 3.6.2

 user-config.jam: -arch i386[[BR]]
 ./b2 architecture=x86 address-model=32[[BR]]
 OK

 user-config.jam: -arch x86_64[[BR]]
 ./b2 architecture=x86 address-model=64[[BR]]
 OK

 user-config.jam: -arch i386 -arch x86_64[[BR]]
 ./b2 architecture=x86 address-model=32_64[[BR]]
 Fail: #error "platform not supported"

 user-config.jam: -arch ppc[[BR]]
 ./b2 architecture=power address-model=32[[BR]]
 Fail: #error "platform not supported"

 For old Xcode 3.2.6 only (Mac OS X 10.6.8 with Rosetta)

 user-config.jam: -arch i386 -arch ppc[[BR]]
 ./b2 architecture=combined address-model=32[[BR]]
 Fail: #error "platform not supported"

 user-config.jam: -arch i386 -arch x86_64 -arch ppc[[BR]]
 ./b2 architecture=combined address-model=32[[BR]]
 Fail: #error "platform not supported"

 IMHO support universal binary has 2 level:
 1. Mandatory level, only support Intel code for Xcode 4.x for development
 new 64-bit applications and support 32-bit x86 application 38298;
 2. Impossible level, support both PowerPC and Intel code for Xcode 3.6
 38339.

 "patch-libs-context-130308-0.diff" addressed only for Intel code for Xcode
 4.x. After patch:

 user-config.jam: -arch i386 -arch x86_64[[BR]]
 ./b2 architecture=x86 address-model=32_64[[BR]]
 OK

 Examples seems working for both i386 and x86_64 architecture:
 {{{
 leom-3:example leo$ arch -x86_64
 ../../../bin.v2/libs/context/example/darwin-4.2.1/debug/address-model-
 32_64/architecture-x86/link-static/exit
 size: 0x58
 main: call start_fcontext( & fcm, fc1, 0)
 f1: entered
 f1: call jump_fcontext( fc1, fc2, 0)
 f2: entered
 f2: call jump_fcontext( fc2, fc1, 0)
 f1: return
 leom-3:example leo$ arch -i386
 ../../../bin.v2/libs/context/example/darwin-4.2.1/debug/address-model-
 32_64/architecture-x86/link-static/exit
 size: 0x28
 main: call start_fcontext( & fcm, fc1, 0)
 f1: entered
 f1: call jump_fcontext( fc1, fc2, 0)
 f2: entered
 f2: call jump_fcontext( fc2, fc1, 0)
 f1: return
 leom-3:example leo$ arch -x86_64
 ../../../bin.v2/libs/context/example/darwin-4.2.1/debug/address-model-
 32_64/architecture-x86/link-static/jump
 main: call start_fcontext( & fcm, fc1, 0)
 f1: entered
 f1: call jump_fcontext( fc1, fc2, 0)
 f2: entered
 f2: call jump_fcontext( fc2, fc1, 0)
 f1: return
 main: done
 leom-3:example leo$ arch -i386
 ../../../bin.v2/libs/context/example/darwin-4.2.1/debug/address-model-
 32_64/architecture-x86/link-static/jump
 main: call start_fcontext( & fcm, fc1, 0)
 f1: entered
 f1: call jump_fcontext( fc1, fc2, 0)
 f2: entered
 f2: call jump_fcontext( fc2, fc1, 0)
 f1: return
 main: done
 leom-3:example leo$ arch -x86_64
 ../../../bin.v2/libs/context/example/darwin-4.2.1/debug/address-model-
 32_64/architecture-x86/link-static/transfer
 2 + 7 == 9
 5 + 6 == 11
 main: done
 leom-3:example leo$ arch -i386
 ../../../bin.v2/libs/context/example/darwin-4.2.1/debug/address-model-
 32_64/architecture-x86/link-static/transfer
 2 + 7 == 9
 5 + 6 == 11
 main: done
 }}}

 Regression test also not detect errors:
 {{{
 leom-3:test leo$ arch -i386
 ../../../bin.v2/libs/context/test/test_context.test/darwin-4.2.1/debug
 /address-model-32_64/architecture-x86/link-static/test_context
 Running 8 test cases...

 *** No errors detected
 leom-3:test leo$ arch -x86_64
 ../../../bin.v2/libs/context/test/test_context.test/darwin-4.2.1/debug
 /address-model-32_64/architecture-x86/link-static/test_context
 Running 8 test cases...

 *** No errors detected
 }}}

 For support PowerPC and universal binary with PowerPC also needed:
 1. Convert "{jump,make}_ppc{32,64}_sysv_elf_gas.S" to
 "{jump,make}_ppc{32,64}_sysv_macho_gas.S", i.e. convert syntax of
 comments, external symbol name decoration, syntax of register name and
 assembler expression;
 2. Compare Apple Mac OSX and IBM AIX documents about calling conventions,
 FPU and AltiVec usage;

 But MacPorts users, may be, voted just disable "context" library for PPC.

 Sorry for my best English

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8266#comment:6>
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