173 lines
6.3 KiB
C
173 lines
6.3 KiB
C
/*****************************************************************************/
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/* */
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/* scopes.c */
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/* */
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/* Scope handling for the ld65 linker */
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/* */
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/* */
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/* */
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/* (C) 2011, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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/* common */
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#include "xmalloc.h"
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/* ld65 */
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#include "error.h"
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#include "fileio.h"
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#include "scopes.h"
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#include "span.h"
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#include "spool.h"
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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static Scope* NewScope (ObjData* Obj, unsigned Id)
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/* Create a new Scope and return it */
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{
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/* Allocate memory */
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Scope* S = xmalloc (sizeof (Scope));
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/* Initialize the fields where necessary */
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S->Id = Id;
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S->Obj = Obj;
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S->Size = 0;
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S->LabelId = ~0U;
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S->Spans = 0;
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/* Return the new entry */
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return S;
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}
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Scope* ReadScope (FILE* F, ObjData* Obj, unsigned Id)
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/* Read a scope from a file and return it */
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{
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/* Create a new scope */
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Scope* S = NewScope (Obj, Id);
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/* Read the data from file */
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S->ParentId = ReadVar (F);
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S->LexicalLevel = ReadVar (F);
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S->Flags = ReadVar (F);
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S->Type = ReadVar (F);
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S->Name = MakeGlobalStringId (Obj, ReadVar (F));
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if (SCOPE_HAS_SIZE (S->Flags)) {
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S->Size = ReadVar (F);
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}
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if (SCOPE_HAS_LABEL (S->Flags)) {
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S->LabelId = ReadVar (F);
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}
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S->Spans = ReadSpanList (F);
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/* Return the new Scope */
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return S;
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}
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unsigned ScopeCount (void)
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/* Return the total number of scopes */
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{
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/* Count scopes from all modules we have linked into the output file */
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unsigned I;
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unsigned Count = 0;
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for (I = 0; I < CollCount (&ObjDataList); ++I) {
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/* Get the object file */
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const ObjData* O = CollAtUnchecked (&ObjDataList, I);
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/* Account for the scopes in this file */
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Count += CollCount (&O->Scopes);
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}
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return Count;
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}
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void PrintDbgScopes (FILE* F)
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/* Output the scopes to a debug info file */
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{
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unsigned I, J;
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/* Print scopes from all modules we have linked into the output file */
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for (I = 0; I < CollCount (&ObjDataList); ++I) {
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/* Get the object file */
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ObjData* O = CollAtUnchecked (&ObjDataList, I);
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/* Output the scopes for this object file */
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for (J = 0; J < CollCount (&O->Scopes); ++J) {
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const Scope* S = CollConstAt (&O->Scopes, J);
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/* Output the first chunk of data */
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fprintf (F,
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"scope\tid=%u,name=\"%s\",mod=%u",
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O->ScopeBaseId + S->Id,
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GetString (S->Name),
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I);
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/* Print the type if not module */
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switch (S->Type) {
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case SCOPE_GLOBAL: fputs (",type=global", F); break;
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case SCOPE_FILE: /* default */ break;
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case SCOPE_SCOPE: fputs (",type=scope", F); break;
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case SCOPE_STRUCT: fputs (",type=struct", F); break;
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case SCOPE_ENUM: fputs (",type=enum", F); break;
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default:
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Error ("Module `%s': Unknown scope type %u",
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GetObjFileName (O), S->Type);
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}
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/* Print the size if available */
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if (S->Size != 0) {
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fprintf (F, ",size=%lu", S->Size);
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}
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/* Print parent if available */
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if (S->Id != S->ParentId) {
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fprintf (F, ",parent=%u", O->ScopeBaseId + S->ParentId);
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}
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/* Print the label id if the scope is labeled */
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if (SCOPE_HAS_LABEL (S->Flags)) {
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fprintf (F, ",sym=%u", O->SymBaseId + S->LabelId);
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}
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/* Print the list of spans for this scope */
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PrintDbgSpanList (F, O, S->Spans);
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/* Terminate the output line */
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fputc ('\n', F);
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}
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}
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}
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