[OpenBIOS] Cross-compiling and testing sparc64 on Mac OS X

[Blue Swirl]

On Fri, Nov 27, 2009 at 1:49 AM, Andreas Färber <andreas.faerber at web.de> wrote:
> Hello guys,
>
> It's awesome seeing you've made some progress towards emulating
> Solaris/sparc64!
>
> However trying myself, compiling on Mac OS X (after making sure that
> NEED_INT128_T is defined) fails with the following error:
>
>  HOSTCC host/kernel/bootstrap.o
> In file included from ../include/openbios/sysinclude.h:7,
>                 from ../kernel/bootstrap.c:9:
> /usr/include/stdlib.h:267: error: syntax error before ‘arc4random’
> make[1]: *** [host/kernel/bootstrap.o] Error 1
>
> The return type of arc4random is u_int32_t, which is defined (in my case) in
> <ppc/types.h>. Not sure what goes wrong there. I thought it could be a name
> clash with OpenBIOS' __TYPES_H (malc would be furious!), but - luckily -
> Apple uses __TYPES_H_ for their _types.h. Anyway, not having these functions
> declared by defining _POSIX_C_SOURCE made the compilation proceed with only
> one warning:
>
>  HOSTCC host/kernel/bootstrap.o
> ../kernel/bootstrap.c: In function ‘interpret_source’:
> ../kernel/bootstrap.c:529: warning: implicit declaration of function
> ‘strcasecmp’
>
> If I symlink .../share/qemu/openbios-sparc64 to
> .../obj-sparc64/openbios-builtin.elf (or copy it over) I get this at
> runtime:
>
> qemu: fatal: Trap 0x0010 while trap level (5) >= MAXTL (5), Error state
> pc: 0000000000004200  npc: 0000000000004204
> General Registers:
> %g0: 0000000000000000   %g1: 0000000000000000   %g2: 0000000008000000   %g3:
> 0000000000000000
> %g4: 0000000000000000   %g5: 0000000000000000   %g6: 0000000000000000   %g7:
> 0000000000000000
> Current Register Window:
> %o0: 00000000ffe00000   %o1: 00000000ffe01000   %o2: 000001fff0100000   %o3:
> 000001fff0000000
> %o4: 0000000000000000   %o5: 0000000000000000   %o6: 0000000000000000   %o7:
> 000001ff00000000
> %l0: 0000000007e80000   %l1: 000001ff00000000   %l2: 000001fff0080000   %l3:
> 0000000000000000
> %l4: 0000000000000000   %l5: 0000000000000000   %l6: 0000000000000000   %l7:
> 0000000000000000
> %i0: 0000000000000000   %i1: 0000000000000000   %i2: 0000000000000000   %i3:
> 0000000000000000
> %i4: 0000000000000000   %i5: 0000000000000000   %i6: 0000000000000000   %i7:
> 0000000000000000
>
> Floating Point Registers:
> %f00: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
> %f04: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
> %f08: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
> %f12: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
> %f16: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
> %f20: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
> %f24: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
> %f28: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
> pstate: 0x00000015 ccr: 0x99 asi: 0x00 tl: 5 fprs: 0
> cansave: 6 canrestore: 0 otherwin: 0 wstate 0 cleanwin 6 cwp 7
> fsr: 0x00000000
> ../qemu-solaris-sparc.command: line 3:  3289 Abort trap
>  /Users/andreas/Q/latest/bin/qemu-system-sparc64 -nographic -boot d -cdrom
> /Users/andreas/Q/sol-10-u3-ga-sparc-dvd.iso
>
> This looks different from what you've posted and is identical with QEMU's
> version of openbios-sparc64. Same with or without -nographic.
>
> Any ideas?

Please start QEMU with -d in_asm,out_asm and post the last 100 lines
(or so) of /tmp/qemu.log.

I'd suspect a bug in Sparc64 emulation, or PPC code generator.