begin conversion to new linker

src/stub/src/powerpc-darwin.macho-entry.S

@@ -26,18 +26,58 @@
  *
  */
 
-#include "arch/powerpc/32/regs.h"
+#include "arch/powerpc/32/ppc_regs.h"
+#define section .section
 
-/*__MACOS000__*/
+  section MACOS000
 _start: .globl _start
         call main  # must be exactly 1 instruction; link_register= &decompress
+
+  section NRV_HEAD
+SZ_DLINE=128  # size of data cache line in Apple G5
+
+/* PowerPC has no 'cmplis': compare logical [unsigned] immediate shifted [by 16] */
+#define  hibit r0  /* holds 0x80000000 during decompress */
+
+#define src  a0
+#define lsrc a1
+#define dst  a2
+#define ldst a3  /* Out: actually a reference: &len_dst */
+#define meth a4
+
+#define off  a4
+#define len  a5
+#define bits a6
+#define disp a7
+
+  section NRV2E
 #include "arch/powerpc/32/nrv2e_d.S"
 
-/* Temporary until we get the buildLoader stuff working ... */
-        .ascii "\n$Id: UPX (C) 1996-2006 the UPX Team. "
-        .asciz "All Rights Reserved. http://upx.sf.net $\n"
-        .p2align 2  # (1<<2)
+  section NRV2D
+#include "arch/powerpc/32/nrv2d_d.S"
 
+  section NRV2B
+#include "arch/powerpc/32/nrv2b_d.S"
+
+#include "arch/powerpc/32/lzma_d.S"
+
+  section NRV_TAIL
+eof_nrv:
+#define tmp r0  /* hibit is dead */
+        lwz tmp,0(ldst)  // original dst
+        mtlr t3  // return address
+        addi dst,dst,1  // uncorrect for 'stbu'
+        addi src,src,1  // uncorrect for 'lbzu'
+        subf dst,tmp,dst  // dst -= tmp;  // dst length
+#undef tmp
+        subf a0,lsrc,src  // src -= eof;  // return 0: good; else: bad
+        stw dst,0(ldst)
+        ret
+
+  section ELFMAINY
+        // IDENTSTR goes here
+
+  section ELFMAINZ
 sz_b_info= 12
   sz_unc= 0
   sz_cpr= 4
@@ -67,9 +107,6 @@ L100: GAP= 128  # > farthest_prefetch; must match ../p_mach.cpp
         b GAP+L100  # 'isync' has trouble on Macintosh G4?
         /* { b_info={sz_unc, sz_cpr, {4 char}}, folded_loader...} */
 
-eof:
-/*__XTHEENDX__*/
-
 /*
 vi:ts=8:et:nowrap
 */