WebSVN – tendra.SVN – Diff – /trunk/src/installers/alpha/common/frames.c

+/*
+ * Copyright (c) 2002-2005 The TenDRA Project <http://www.tendra.org/>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of The TenDRA Project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific, prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
+ * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $Id$
+ */
 /*
     		 Crown Copyright (c) 1997
     This TenDRA(r) Computer Program is subject to Copyright
     owned by the United Kingdom Secretary of State for Defence
     acting through the Defence Evaluation and Research Agency
     (DERA).  It is made available to Recipients with a
     royalty-free licence for its use, reproduction, transfer
     to other parties and amendment for any purpose not excluding
     product development provided that any such use et cetera
     shall be deemed to be acceptance of the following conditions:-
         (1) Its Recipients shall ensure that this Notice is
         reproduced upon any copies or amended versions of it;
         (2) Any amended version of it shall be clearly marked to
         show both the nature of and the organisation responsible
         for the relevant amendment or amendments;
         (3) Its onward transfer from a recipient to another
         party shall be deemed to be that party's acceptance of
         these conditions;
         (4) DERA gives no warranty or assurance as to its
         quality or suitability for any purpose and DERA accepts
         no liability whatsoever in relation to any use to which
         it may be put.
 */
 #include "bitsmacs.h"
 #include "reg_defs.h"
 #include "fail.h"
 #include "cross.h"
 #include "bool.h"
-extern int bitsin PROTO_S ((int32));
+extern int bitsin(int32);
-extern exp father PROTO_S ((exp));
+extern exp father(exp);
 bool Has_fp = FALSE;
 bool Has_tos = FALSE;
 bool No_S = FALSE;
 bool Has_vcallees = FALSE;
 int local_reg = 14;
 int callee_size;
 #define max(x,y)	(x>y)?x:y
-#define min(x,y)        (x>y)?y:x
+#define min(x,y)      (x>y)?y:x
 void setframe_flags
-    PROTO_N ( ( e,leaf ) )
-    PROTO_T ( exp e X bool leaf )
+(exp e, bool leaf)
+{
    /* e is proc_tag */
-  No_S = (!leaf && (name(e) != general_proc_tag || !proc_has_nolongj(e))
+  No_S = (!leaf && (name(e)!= general_proc_tag || !proc_has_nolongj(e))
 	  && proc_uses_crt_env(e) && proc_has_lv(e));
-  Has_fp = (No_S || proc_has_alloca(e)|| name(e) == general_proc_tag);
+  Has_fp = (No_S || proc_has_alloca(e) || name(e) == general_proc_tag);
   Has_tos = (No_S && proc_has_alloca(e));
   Has_vcallees = (name(e) == general_proc_tag && proc_has_vcallees(e));
   Has_no_vcallers = (name(e) == proc_tag || !proc_has_vcallers(e));
 #ifdef Try_No_S
   No_S = TRUE;
 #ifdef Try_Has_fp
   Has_fp = !leaf;
 #endif
 #ifdef Try_Has_tos
   Has_tos = TRUE;
 #endif
+}
 /*
   sets up the size of the frame, and the positions in which to
   save the registers.
 */
 void setframe_info
-    PROTO_N ( ( e ) )
-    PROTO_T ( exp e )
+(exp e)
+{
   procrec * pr = & procrecs[no(e)];
   needs * ndpr = & pr->needsproc;
   spacereq *sppr = & pr->spacereqproc;
   long pprops = (ndpr->propsneeds);
   bool leaf = (pprops & anyproccall) == 0;
   int ma = ndpr->maxargs;	/* maxargs of proc body in bits */
   int pa = ndpr->numparams;
   long st = sppr->stack;	/* space for locals in bits */
   int nofixdump;
   int nofloatdump;
   int save_offset;
   setframe_flags(e, leaf);
-  if(has_c_vararg(e) || !Has_no_vcallers){
+  if (has_c_vararg(e) || !Has_no_vcallers) {
     pa=12*64;	/* should be 11 */
   }
   else{
     pa=min(pa,6*64);
+  }
   st = (st + 32) & ~63;
-  pa = (pa+32)&~63;
+  pa = (pa+32) &~63;
   ma = (ma + 32) & ~63;	/* put on 64 bit boundaries */
   pr->max_args = ma;
   save_offset=max(ma-384,0);
   /* locate the register to be saved */
   pr->fixdump = sppr->fixdump<<9;/* 8 */
-  if (!leaf ) {
+  if (!leaf) {
     pr->fixdump |= 1 << RA;
   }	/* space for return address */
-  if(No_S) {
+  if (No_S) {
     pr->fixdump |= (Has_fp)?0x7e00:0xfe00;
+  }
   pr->floatdump = (sppr->fltdump<<1);	/* wrong! */
-  nofixdump = bitsin (pr->fixdump);
+  nofixdump = bitsin(pr->fixdump);
-  nofloatdump = bitsin (pr->floatdump);
+  nofloatdump = bitsin(pr->floatdump);
   /* no of fixed s-regs to be dumped */
-  pr->frame_size=pa+st+save_offset+(nofixdump+nofloatdump)*64;
+  pr->frame_size=pa+st+save_offset+ (nofixdump+nofloatdump)*64;
-  pr->frame_size+=((has_float(e)!=0 || !optop(e))?64:0);
+  pr->frame_size+= ((has_float(e)!=0 || !optop(e))?64:0);
   /* reserve an extra quadword for float reg <-> general reg
      transfers */
   if (Has_fp) {
     pr->frame_size +=64; /* extra word for old fp  */
 /*    pr->callee_size += 128;*/
+  }
   pr->dumpstart=save_offset>>3;
   pr->fldumpstart=pr->dumpstart+8*nofixdump;
-  pr->locals_offset = (pr->fldumpstart + 8*(nofloatdump+(has_float(e)!=0 ||
+  pr->locals_offset = (pr->fldumpstart + 8*(nofloatdump+ (has_float(e)!=0 ||
-							 !optop(e))))<<3;
+							 !optop(e)))) <<3;
   pr->paramsdumpstart = pr->locals_offset+st + ((Has_fp)?64:0);
   return;
 }
 int frame_offset
-    PROTO_N ( ( id ) )
-    PROTO_T ( exp id )
+(exp id)
+{
   exp p;
   procrec * pr;
-  int  x = no (id);
+  int  x = no(id);
   int  b = x & 0x3f;
   Assert(name(id) == ident_tag);
   for (p = father(id); name(p)!=proc_tag && name(p)!=general_proc_tag;
 		       p = father(p));
   pr = & procrecs[no(p)];
-  if((b == SP) || (b == FP)){
+  if ((b == SP) || (b == FP)) {
-    return ((x - b) >> 4) +
+    return((x - b) >> 4) +
-      ((pr->locals_offset - pr->frame_size - pr->callee_size)>>3);
+     ((pr->locals_offset - pr->frame_size - pr->callee_size) >>3);
   }
-  else if (b == local_reg){
+  else if (b == local_reg) {
-    return ((x-b)>>4) + (pr->locals_offset>>3) - (pr->frame_size>>3)
+    return((x-b) >>4) + (pr->locals_offset>>3) - (pr->frame_size>>3)
       /*- (pr->callee_size>>3)*/;
+  }
   else{
     bool Has_vcallees = (name(p) == general_proc_tag && proc_has_vcallees(p));
-    int n = -8 - (no(son(id))>>3);
+    int n = -8 - (no(son(id)) >>3);
-    if(isparam(id) && name(son(id)) != formal_callee_tag){
+    if (isparam(id) && name(son(id))!= formal_callee_tag) {
       return n;
     }
-    else if(isparam(id) && name(son(id)) == formal_callee_tag){
+    else if (isparam(id) && name(son(id)) == formal_callee_tag) {
-      return ((Has_vcallees)?n:((pr->callee_size>>3) - n));
+      return((Has_vcallees)?n:((pr->callee_size>>3) - n));
+    }
     else{
       failer("Illegal frame offset");
       return 0;
+    }
+  }
+}

Subversion Repositories tendra.SVN

(root)/trunk/src/installers/alpha/common/frames.c – Rev 2 → 7