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PPC: Add stack frame layout for PPCSPE target. 

PPCSPE target compiles now, but will trap for any NYI parts.
Cross-compilation instructions:
  make HOST_CC="gcc -m32" CROSS=powerpc-e500v2-linux-gnuspe- TARGET=ppcspe
master
Mike Pall 2010-08-27 18:32:24 +02:00
parent b3bd9b55e0
commit 9cb5046c3f
4 changed files with 69 additions and 3 deletions
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2
doc/install.html
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@ -301,7 +301,7 @@ You can cross-compile for a Windows target on Debian/Ubuntu by
installing the <tt>mingw32</tt> package and running:
</p>
<pre class="code">
make CC="gcc -m32" CROSS=i586-mingw32msvc- TARGET_SYS=Windows
make HOST_CC="gcc -m32" CROSS=i586-mingw32msvc- TARGET_SYS=Windows
</pre>
<h2>Embedding LuaJIT</h2>

5
src/Makefile
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@ -130,8 +130,9 @@ BUILDMODE= mixed
# LIBS HOST_LIBS TARGET_LIBS
# CROSS HOST_SYS TARGET_SYS
#
# Cross-compilation example:
# make CC="gcc -m32" CROSS=i586-mingw32msvc- TARGET_SYS=Windows
# Cross-compilation examples:
# make HOST_CC="gcc -m32" CROSS=i586-mingw32msvc- TARGET_SYS=Windows
# make HOST_CC="gcc -m32" CROSS=powerpc-e500v2-linux-gnuspe- TARGET=ppcspe
CCOPTIONS= $(CCDEBUG) $(CCOPT) $(CCWARN) $(XCFLAGS) $(CFLAGS)
LDOPTIONS= $(CCDEBUG) $(LDFLAGS)

56
src/buildvm_ppc.dasc
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@ -16,6 +16,62 @@
|
|//-----------------------------------------------------------------------
|
|// Stack layout while in interpreter. Must match with lj_frame.h.
|.if SPE
|.define SAVE_LR, 180(sp)
|.define CFRAME_SPACE, 176 // Delta for sp.
|// Back chain for sp: 176(sp) <-- sp entering interpreter
|.define SAVE_r31, 168(sp) // 64 bit register saves.
|.define SAVE_r30, 160(sp)
|.define SAVE_r29, 152(sp)
|.define SAVE_r28, 144(sp)
|.define SAVE_r27, 136(sp)
|.define SAVE_r26, 128(sp)
|.define SAVE_r25, 120(sp)
|.define SAVE_r24, 112(sp)
|.define SAVE_r23, 104(sp)
|.define SAVE_r22, 96(sp)
|.define SAVE_r21, 88(sp)
|.define SAVE_r20, 80(sp)
|.define SAVE_r19, 72(sp)
|.define SAVE_r18, 64(sp)
|.define SAVE_r17, 56(sp)
|.define SAVE_r16, 48(sp)
|.define SAVE_r15, 40(sp)
|.define SAVE_r14, 32(sp)
|.define SAVE_ERRF, 28(sp) // 32 bit C frame info.
|.define SAVE_NRES, 24(sp)
|.define SAVE_CFRAME, 20(sp)
|.define SAVE_L, 16(sp)
|.define SAVE_PC, 12(sp)
|.define SAVE_MULTRES, 8(sp)
|// Next frame lr: 4(sp)
|// Back chain for sp: 0(sp) <-- sp while in interpreter
|
|.macro save_, reg; evstdd reg, SAVE_..reg; .endmacro
|.macro rest_, reg; evldd reg, SAVE_..reg; .endmacro
|.endif
|
|.macro saveregs
| stwu sp, -CFRAME_SPACE(sp)
| save_ r14; save_ r15; save_ r16; save_ r17; save_ r18; save_ r19
| mflr r0
| save_ r20; save_ r21; save_ r22; save_ r23; save_ r24; save_ r25
| stw r0, SAVE_LR
| save_ r26; save_ r27; save_ r28; save_ r29; save_ r30; save_ r31
|.endmacro
|
|.macro restoreregs
| lwz r0, SAVE_LR
| rest_ r14; rest_ r15; rest_ r16; rest_ r17; rest_ r18; rest_ r19
| mtlr r0
| rest_ r20; rest_ r21; rest_ r22; rest_ r23; rest_ r24; rest_ r25
| rest_ r26; rest_ r27; rest_ r28; rest_ r29; rest_ r30; rest_ r31
| addi sp, sp, CFRAME_SPACE
|.endmacro
|
|//-----------------------------------------------------------------------
|
|// Trap for not-yet-implemented parts.
|.macro NYI; tw 4, sp, sp; .endmacro
|

9
src/lj_frame.h
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@ -87,6 +87,15 @@ enum {
#define CFRAME_SIZE (10*8)
#define CFRAME_SIZE_JIT (CFRAME_SIZE + 16)
#endif
#elif LJ_TARGET_PPCSPE
#define CFRAME_OFS_ERRF 28
#define CFRAME_OFS_NRES 24
#define CFRAME_OFS_PREV 20
#define CFRAME_OFS_L 16
#define CFRAME_OFS_PC 12
#define CFRAME_OFS_MULTRES 8
#define CFRAME_SIZE 176
#define CFRAME_SIZE_JIT CFRAME_SIZE
#else
#error "Missing CFRAME_* definitions for this architecture"
#endif