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

[Mark Cave-Ayland]

Andreas Färber 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?

Hmmm that's a tricky one. Does it not even get to the OpenBIOS prompt? 
You need to be using a recent git master for Qemu as well as OpenBIOS 
SVN, although I haven't updated my local copy for a couple of weeks.

Can you try launching a PPC Qemu instance with both the supplied 
openbios-ppc and then building your own to confirm that they both 
display the same behaviour?


ATB,

Mark.

-- 
Mark Cave-Ayland - Senior Technical Architect
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