id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	lang	patch	platform
512	Porting parrot 1.0.0 to NetBSD/macppc	heidnes		"Hi,

I decided to look at how difficult it would be to get the
recently released parrot 1.0.0 going on NetBSD/macppc 4.0.

The answer turned out to be ""not very"". :)  Cheers for good
portability!  (But there's another bug report on the way
about a non-portable use of the == operator to the ""test""
program...)

I had to make a few minor adjustments to the code, due to the
following differences between the Linux/ppc and NetBSD/macppc
(or generally NetBSD/powerpc) targets:

1) The assembler on NetBSD/macppc insists that powerpc registers
   must be named with a % prefix.  I have verified that Linux/ppc
   accepts that syntax as well.

2) There is some strange difference going on with respect to
   whether externally visible symbols in assembly should have
   a leading underscore or not, apparently.  This affects the
   minimal assembly fragment for saving the non-volatile
   registers.  Since the assembly code is apparently passed
   through the preprocessor, a simple #ifdef cured this problem.

3) A couple of ELF-related PPC preprocessor symbols are named
   differently in NetBSD.  I'm not entirely sure where the
   correct place is for that workaround -- feel free to relocate
   to a more appropriate spot.

I've attached my local changes to deal with these three issues.
With these in place, my build completed, and a ""make test""
succeeded with

All tests successful, 17 tests and 580 subtests skipped.
Files=398, Tests=11569, 584 wallclock secs (429.43 cusr + 106.05 csys = 535.48 CPU)

Your already tracked issue for OpenBSD at

http://rt.perl.org/rt3//Public/Bug/Display.html?id=40959

should also be fixed by this particular bugfix.


I'll also note that during the build a number of warnings are
emitted, similar to this:

src/ops/core_ops_switch.c
src/ops/core.ops: In function 'switch_core':
src/ops/core.ops:165: warning: cast increases required alignment of target type
src/ops/core.ops:191: warning: cast increases required alignment of target type
src/ops/core.ops:204: warning: cast increases required alignment of target type
src/ops/core.ops:212: warning: cast increases required alignment of target type
src/ops/core.ops:236: warning: cast increases required alignment of target type

(the list goes on, also for several other files...)  The first
one of these appears to be (from src/ops/core_ops_switch.c:

case 8: /* load_bytecode_s */ {
#line 165 ""src/ops/core.ops""
    Parrot_load_bytecode(interp, (*(STRING **)OP_AS_OFFS(1)));


---
osname= netbsd
osvers= 4.0
arch=   powerpc-netbsd-thread-multi
cc=     cc
---
Flags:
    category=core
    severity=medium
    ack=no
---
Summary of my parrot 1.0.0 (r0) configuration:
  configdate='Mon Mar 23 17:27:34 2009 GMT'
  Platform:
    osname=netbsd, archname=powerpc-netbsd-thread-multi
    jitcapable=1, jitarchname=ppc-netbsd,
    jitosname=NETBSD, jitcpuarch=ppc
    execcapable=1
    perl=perl
  Compiler:
    cc='cc', ccflags=' -pipe -pthread -DHASATTRIBUTE_CONST  -DHASATTRIBUTE_DEPRECATED  -DHASATTRIBUTE_MALLOC  -DHASATTRIBUTE_NONNULL  -DHASATTRIBUTE_NORETURN  -DHASATTRIBUTE_PURE  -DHASATTRIBUTE_UNUSED  -DHASATTRIBUTE_WARN_UNUSED_RESULT  -falign-functions=16 -fvisibility=hidden -funit-at-a-time -W -Wall -Waggregate-return -Wcast-align -Wcast-qual -Wchar-subscripts -Wcomment -Wdisabled-optimization -Wendif-labels -Wextra -Wformat -Wformat-extra-args -Wformat-nonliteral -Wformat-security -Wformat-y2k -Wimplicit -Wimport -Winit-self -Winline -Winvalid-pch -Wmissing-braces -Wmissing-field-initializers -Wno-missing-format-attribute -Wmissing-include-dirs -Wpacked -Wparentheses -Wpointer-arith -Wreturn-type -Wsequence-point -Wno-shadow -Wsign-compare -Wstrict-aliasing -Wstrict-aliasing=2 -Wswitch -Wswitch-default -Wtrigraphs -Wundef -Wunknown-pragmas -Wno-unused -Wvariadic-macros -Wwrite-strings -Wbad-function-cast -Wc++-compat -Wdeclaration-after-statement -Wimplicit-function-declaration -Wimplicit-int -Wmain -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wnonnull -DHAS_GETTEXT',
  Linker and Libraries:
    ld='cc', ldflags='-Wl,-R/usr/pkg/lib ',
    cc_ldflags='',
    libs='-lm -lcrypt -lpthread -lintl'
  Dynamic Linking:
    share_ext='.so', ld_share_flags='-Wl,-R/usr/pkg/lib --whole-archive -shared ',
    load_ext='.so', ld_load_flags='-Wl,-R/usr/pkg/lib --whole-archive -shared '
  Types:
    iv=long, intvalsize=4, intsize=4, opcode_t=long, opcode_t_size=4,
    ptrsize=4, ptr_alignment=1 byteorder=4321, 
    nv=double, numvalsize=8, doublesize=8, longdoublesize=8

---
Environment:
    HOME =/usr/users/he
    LANG  (unset)
    LANGUAGE  (unset)
    LD_LIBRARY_PATH  (unset)
    LOGDIR  (unset)
    PATH =/usr/users/he/bin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/X11R6/bin:/usr/pkg/bin:/usr/pkg/sbin:/usr/games:/usr/local/bin:/usr/local/sbin
    SHELL =/bin/csh
"	bug	closed	normal	1.1	core	1.0.0	medium	fixed		he@…		applied	netbsd