Re: port-arm/48193: On NetBSD/evbearmv6hf-el for Raspberry Pi, MACHINE_ARCH returns earm, but *hf* is expected in /usr/share/mk/bsd.own.mk .

[Ryo ONODERA <ryo_on%yk.rim.or.jp@localhost>]

The following reply was made to PR port-arm/48193; it has been noted by GNATS.

From: Ryo ONODERA <ryo_on%yk.rim.or.jp@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: port-arm/48193: On NetBSD/evbearmv6hf-el for Raspberry Pi,
 MACHINE_ARCH returns earm, but *hf* is expected in
 /usr/share/mk/bsd.own.mk .
Date: Sun, 15 Sep 2013 08:39:14 +0900 (JST)

 Hi
 
 >>  That doesn't really work since the kernel is always softfloat.
 >>  
 >>  I fixed it differently by embedding the MACHINE_ARCH in a note
 >>  in the executable.  The kernel records the supplied MACHINE_ARCH
 >>  in and returns when a sysctl for hw.machine_arch is done.
 >
 > Which commit is for this fix?
 > Could you show me the diff?
 > I want to learn the way.
 
 For the record.
 
 matt@ tells me the following commits are embedding the MACHINE_ARCH
 in a note in the executable.
 
 http://mail-index.netbsd.org/source-changes/2013/09/10/msg047399.html
 Module Name:    src
 Committed By:   matt
 Date:           Tue Sep 10 16:24:02 UTC 2013
 
 Modified Files:
         src/sys/sys: exec_elf.h
 
 Log Message:
 Add a NetBSD note variant for recording the machine_arch for which the
 executable was built.  (currently only used by earm variants)
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.128 -r1.129 src/sys/sys/exec_elf.h
 
 
 http://mail-index.netbsd.org/source-changes/2013/09/10/msg047400.html
 Module Name:    src
 Committed By:   matt
 Date:           Tue Sep 10 16:35:10 UTC 2013
 
 Modified Files:
         src/libexec/ld.elf_so: sysident.h
         src/libexec/ld.elf_so/arch/arm: Makefile.inc
 
 Log Message:
 For earm, emit a MARCH note.
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.15 -r1.16 src/libexec/ld.elf_so/sysident.h
 cvs rdiff -u -r1.19 -r1.20 src/libexec/ld.elf_so/arch/arm/Makefile.inc
 
 http://mail-index.netbsd.org/source-changes/2013/09/10/msg047401.html
 Module Name:    src
 Committed By:   matt
 Date:           Tue Sep 10 16:45:33 UTC 2013
 
 Modified Files:
         src/lib/csu: Makefile
         src/lib/csu/arch/earm: Makefile.inc
         src/lib/csu/common: Makefile.inc sysident.S sysident_assym.cf
 
 Log Message:
 Add support for a NetBSD MARCH elf note to record the MACHINE_ARCH for
 which a program was compiled.
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.32 -r1.33 src/lib/csu/Makefile
 cvs rdiff -u -r1.2 -r1.3 src/lib/csu/arch/earm/Makefile.inc
 cvs rdiff -u -r1.16 -r1.17 src/lib/csu/common/Makefile.inc
 cvs rdiff -u -r1.1 -r1.2 src/lib/csu/common/sysident.S \
     src/lib/csu/common/sysident_assym.cf
 
 http://mail-index.netbsd.org/source-changes/2013/09/10/msg047406.html
 Module Name:    src
 Committed By:   matt
 Date:           Tue Sep 10 17:23:55 UTC 2013
 
 Modified Files:
         src/lib/csu/common: sysident_assym.cf
 
 Log Message:
 MARCH note is conditional
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.2 -r1.3 src/lib/csu/common/sysident_assym.cf
 
 
 http://mail-index.netbsd.org/source-changes/2013/09/10/msg047416.html
 Module Name:    src
 Committed By:   matt
 Date:           Tue Sep 10 21:30:21 UTC 2013
 
 Modified Files:
         src/sys/arch/arm/arm: cpu_exec.c
         src/sys/arch/arm/arm32: arm32_machdep.c vm_machdep.c
         src/sys/kern: exec_elf.c kern_exec.c kern_proc.c
         src/sys/sys: exec.h
 
 Log Message:
 Support an optional MARCH ELF tag.
 Store the MACHINE_ARCH of the executable in mdproc and override sysctl
 so that value returned.
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.4 -r1.5 src/sys/arch/arm/arm/cpu_exec.c
 cvs rdiff -u -r1.97 -r1.98 src/sys/arch/arm/arm32/arm32_machdep.c
 cvs rdiff -u -r1.67 -r1.68 src/sys/arch/arm/arm32/vm_machdep.c
 cvs rdiff -u -r1.46 -r1.47 src/sys/kern/exec_elf.c
 cvs rdiff -u -r1.361 -r1.362 src/sys/kern/kern_exec.c
 cvs rdiff -u -r1.187 -r1.188 src/sys/kern/kern_proc.c
 cvs rdiff -u -r1.139 -r1.140 src/sys/sys/exec.h
 
 http://mail-index.netbsd.org/source-changes/2013/09/10/msg047417.html
 Module Name:    src
 Committed By:   matt
 Date:           Tue Sep 10 22:00:01 UTC 2013
 
 Modified Files:
         src/lib/csu/arch/arm: Makefile.inc
 
 Log Message:
 Define ELF_NOTE_MARCH_DESC for when running non-eabi in compat_netbsd32
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.6 -r1.7 src/lib/csu/arch/arm/Makefile.inc
 
 http://mail-index.netbsd.org/source-changes/2013/09/11/msg047424.html
 Module Name:    src
 Committed By:   matt
 Date:           Wed Sep 11 04:24:48 UTC 2013
 
 Modified Files:
         src/sys/arch/arm/include: proc.h
 
 Log Message:
 Add md_march and PROC0_MD_INITIALIZERS
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.14 -r1.15 src/sys/arch/arm/include/proc.h
 
 http://mail-index.netbsd.org/source-changes/2013/09/11/msg047439.html
 Module Name:    src
 Committed By:   matt
 Date:           Wed Sep 11 18:53:54 UTC 2013
 
 Modified Files:
         src/external/gpl3/binutils/dist/binutils: readelf.c
         src/external/gpl3/binutils/dist/include/elf: common.h
 
 Log Message:
 Teach readelf how to interpet netbsd notes.
 
 Notes at offset 0x00000128 with length 0x00000018:
   Owner         Data size       Description
   NetBSD        0x00000004      IDENT 699002300 (6.99.23)
 
 Notes at offset 0x00000154 with length 0x00000020:
   Owner         Data size       Description
   NetBSD        0x00000009      MARCH <earmv7hf>
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.5 -r1.6 src/external/gpl3/binutils/dist/binutils/readelf.c
 cvs rdiff -u -r1.1.1.2 -r1.2 \
     src/external/gpl3/binutils/dist/include/elf/common.h
 
 --
 Ryo ONODERA // ryo_on%yk.rim.or.jp@localhost
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