/* */
/* */
/* */
-/* (C) 1998-2000 Ullrich von Bassewitz */
-/* Wacholderweg 14 */
-/* D-70597 Stuttgart */
-/* EMail: uz@musoftware.de */
+/* (C) 1998-2003 Ullrich von Bassewitz */
+/* Römerstraße 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
#include <stdlib.h>
#include <string.h>
-#include "../common/exprdefs.h"
-#include "../common/hashstr.h"
-#include "../common/segdefs.h"
-#include "../common/symdefs.h"
-#include "../common/xmalloc.h"
-
+/* common */
+#include "check.h"
+#include "exprdefs.h"
+#include "fragdefs.h"
+#include "hashstr.h"
+#include "print.h"
+#include "segdefs.h"
+#include "symdefs.h"
+#include "xmalloc.h"
+
+/* ld65 */
#include "error.h"
#include "expr.h"
#include "fileio.h"
+#include "fragment.h"
#include "global.h"
+#include "lineinfo.h"
#include "segments.h"
+#include "spool.h"
-/* Fragment structure */
-typedef struct Fragment_ Fragment;
-struct Fragment_ {
- Fragment* Next; /* Next fragment in list */
- ObjData* Obj; /* Source of fragment */
- unsigned long Size; /* Size of data/expression */
- ExprNode* Expr; /* Expression if FRAG_EXPR */
- FilePos Pos; /* File position in source */
- unsigned char Type; /* Type of fragment */
- unsigned char LitBuf [1]; /* Dynamically alloc'ed literal buffer */
-};
-
-
-
/* Hash table */
-#define HASHTAB_SIZE 253
+#define HASHTAB_MASK 0x3FU
+#define HASHTAB_SIZE (HASHTAB_MASK + 1)
static Segment* HashTab [HASHTAB_SIZE];
static unsigned SegCount = 0; /* Segment count */
-static Segment* SegRoot = 0; /* List of all segments */
+static Segment* SegRoot = 0; /* List of all segments */
-static Fragment* NewFragment (unsigned char Type, unsigned long Size, Section* S)
-/* Create a new fragment and insert it into the segment S */
-{
- /* Allocate memory */
- Fragment* F = xmalloc (sizeof (Fragment) - 1 + Size); /* Portable? */
-
- /* Initialize the data */
- F->Next = 0;
- F->Obj = 0;
- F->Size = Size;
- F->Expr = 0;
- F->Type = Type;
-
- /* Insert the code fragment into the segment */
- if (S->FragRoot == 0) {
- /* First fragment */
- S->FragRoot = F;
- } else {
- S->FragLast->Next = F;
- }
- S->FragLast = F;
- S->Size += Size;
-
- /* Return the new fragment */
- return F;
-}
-
-
-
-static Segment* NewSegment (const char* Name, unsigned char Type)
+static Segment* NewSegment (unsigned Name, unsigned char AddrSize)
/* Create a new segment and initialize it */
{
- /* Get the length of the symbol name */
- unsigned Len = strlen (Name);
+ unsigned Hash;
/* Allocate memory */
- Segment* S = xmalloc (sizeof (Segment) + Len);
+ Segment* S = xmalloc (sizeof (Segment));
/* Initialize the fields */
- S->Next = 0;
- S->SecRoot = 0;
- S->SecLast = 0;
- S->PC = 0;
- S->Size = 0;
- S->AlignObj = 0;
- S->Align = 0;
- S->FillVal = 0;
- S->Type = Type;
- S->Dumped = 0;
- memcpy (S->Name, Name, Len);
- S->Name [Len] = '\0';
+ S->Name = Name;
+ S->Next = 0;
+ S->SecRoot = 0;
+ S->SecLast = 0;
+ S->PC = 0;
+ S->Size = 0;
+ S->AlignObj = 0;
+ S->Align = 0;
+ S->FillVal = 0;
+ S->AddrSize = AddrSize;
+ S->ReadOnly = 0;
+ S->Relocatable = 0;
+ S->Dumped = 0;
/* Insert the segment into the segment list */
S->List = SegRoot;
SegRoot = S;
++SegCount;
+ /* Insert the segment into the segment hash list */
+ Hash = (S->Name & HASHTAB_MASK);
+ S->Next = HashTab[Hash];
+ HashTab[Hash] = S;
+
/* Return the new entry */
return S;
}
-static Section* NewSection (Segment* Seg, unsigned char Align, unsigned char Type)
+Segment* GetSegment (unsigned Name, unsigned char AddrSize, const char* ObjName)
+/* Search for a segment and return an existing one. If the segment does not
+ * exist, create a new one and return that. ObjName is only used for the error
+ * message and may be NULL if the segment is linker generated.
+ */
+{
+ /* Try to locate the segment in the table */
+ Segment* S = SegFind (Name);
+
+ /* If we don't have that segment already, allocate it using the type of
+ * the first section.
+ */
+ if (S == 0) {
+ /* Create a new segment */
+ S = NewSegment (Name, AddrSize);
+ } else {
+ /* Check if the existing segment has the requested address size */
+ if (S->AddrSize != AddrSize) {
+ /* Allow an empty object name */
+ if (ObjName == 0) {
+ ObjName = "[linker generated]";
+ }
+ Error ("Module `%s': Type mismatch for segment `%s'", ObjName,
+ GetString (Name));
+ }
+ }
+
+ /* Return the segment */
+ return S;
+}
+
+
+
+Section* NewSection (Segment* Seg, unsigned char Align, unsigned char AddrSize)
/* Create a new section for the given segment */
{
unsigned long V;
/* Allocate memory */
- Section* S = xmalloc (sizeof (Segment));
+ Section* S = xmalloc (sizeof (Section));
/* Initialize the data */
S->Next = 0;
S->Seg = Seg;
S->FragRoot = 0;
S->FragLast = 0;
- S->Size = 0;
+ S->Size = 0;
S->Align = Align;
- S->Type = Type;
+ S->AddrSize = AddrSize;
/* Calculate the alignment bytes needed for the section */
V = (0x01UL << S->Align) - 1;
-static Segment* SegFindInternal (const char* Name, unsigned HashVal)
-/* Try to find the segment with the given name, return a pointer to the
- * segment structure, or 0 if not found.
- */
-{
- Segment* S = HashTab [HashVal];
- while (S) {
- if (strcmp (Name, S->Name) == 0) {
- /* Found */
- break;
- }
- S = S->Next;
- }
- /* Not found */
- return S;
-}
-
-
-
Section* ReadSection (FILE* F, ObjData* O)
/* Read a section from a file */
{
- unsigned HashVal;
- char Name [256];
- unsigned long Size;
+ unsigned Name;
+ unsigned Size;
unsigned char Align;
unsigned char Type;
- Segment* S;
- Section* Sec;
-
- /* Read the name */
- ReadStr (F, Name);
-
- /* Read the size */
- Size = Read32 (F);
+ unsigned FragCount;
+ Segment* S;
+ Section* Sec;
- /* Read the alignment */
- Align = Read8 (F);
+ /* Read the segment data */
+ (void) Read32 (F); /* File size of data */
+ Name = MakeGlobalStringId (O, ReadVar (F)); /* Segment name */
+ Size = Read32 (F); /* Size of data */
+ Align = Read8 (F); /* Alignment */
+ Type = Read8 (F); /* Segment type */
+ FragCount = ReadVar (F); /* Number of fragments */
- /* Read the segment type */
- Type = Read8 (F);
/* Print some data */
- if (Verbose > 1) {
- printf ("Module `%s': Found segment `%s', size = %lu, align = %u, type = %u\n",
- O->Name, Name, Size, Align, Type);
- }
-
- /* Create a hash over the name and try to locate the segment in the table */
- HashVal = HashStr (Name) % HASHTAB_SIZE;
- S = SegFindInternal (Name, HashVal);
+ Print (stdout, 2, "Module `%s': Found segment `%s', size = %u, align = %u, type = %u\n",
+ GetObjFileName (O), GetString (Name), Size, Align, Type);
- /* If we don't have that segment already, allocate it using the type of
- * the first section.
- */
- if (S == 0) {
- /* Create a new segment and insert it */
- S = NewSegment (Name, Type);
- S->Next = HashTab [HashVal];
- HashTab [HashVal] = S;
- }
+ /* Get the segment for this section */
+ S = GetSegment (Name, Type, GetObjFileName (O));
/* Allocate the section we will return later */
Sec = NewSection (S, Align, Type);
- /* Check if the section has the same type as the segment */
- if (Sec->Type != S->Type) {
- /* OOPS */
- Error ("Module `%s': Type mismatch for segment `%s'", O->Name, S->Name);
- }
-
/* Set up the minimum segment alignment */
if (Sec->Align > S->Align) {
/* Section needs larger alignment, use this one */
}
/* Start reading fragments from the file and insert them into the section . */
- while (Size) {
+ while (FragCount--) {
Fragment* Frag;
+ unsigned LineInfoIndex;
/* Read the fragment type */
unsigned char Type = Read8 (F);
+ /* Extract the check mask from the type */
+ unsigned char Bytes = Type & FRAG_BYTEMASK;
+ Type &= FRAG_TYPEMASK;
+
/* Handle the different fragment types */
switch (Type) {
- case FRAG_LITERAL8:
- Frag = NewFragment (FRAG_LITERAL, Read8 (F), Sec);
- break;
-
- case FRAG_LITERAL16:
- Frag = NewFragment (FRAG_LITERAL, Read16 (F), Sec);
- break;
-
- case FRAG_LITERAL24:
- Frag = NewFragment (FRAG_LITERAL, Read24 (F), Sec);
- break;
-
- case FRAG_LITERAL32:
- Frag = NewFragment (FRAG_LITERAL, Read32 (F), Sec);
+ case FRAG_LITERAL:
+ Frag = NewFragment (Type, ReadVar (F), Sec);
+ ReadData (F, Frag->LitBuf, Frag->Size);
break;
- case FRAG_EXPR8:
- case FRAG_EXPR16:
- case FRAG_EXPR24:
- case FRAG_EXPR32:
- case FRAG_SEXPR8:
- case FRAG_SEXPR16:
- case FRAG_SEXPR24:
- case FRAG_SEXPR32:
- Frag = NewFragment (Type & FRAG_TYPEMASK, Type & FRAG_BYTEMASK, Sec);
- break;
+ case FRAG_EXPR:
+ case FRAG_SEXPR:
+ Frag = NewFragment (Type, Bytes, Sec);
+ Frag->Expr = ReadExpr (F, O);
+ break;
case FRAG_FILL:
- /* Will allocate memory, but we don't care... */
- Frag = NewFragment (FRAG_FILL, Read16 (F), Sec);
- break;
+ /* Will allocate memory, but we don't care... */
+ Frag = NewFragment (Type, ReadVar (F), Sec);
+ break;
default:
- Error ("Unknown fragment type in module `%s', segment `%s': %02X",
- O->Name, S->Name, Type);
- /* NOTREACHED */
+ Error ("Unknown fragment type in module `%s', segment `%s': %02X",
+ GetObjFileName (O), GetString (S->Name), Type);
+ /* NOTREACHED */
return 0;
}
- /* Now read the fragment data */
- switch (Frag->Type) {
-
- case FRAG_LITERAL:
- /* Literal data */
- ReadData (F, Frag->LitBuf, Frag->Size);
- break;
-
- case FRAG_EXPR:
- case FRAG_SEXPR:
- /* An expression */
- Frag->Expr = ReadExpr (F, O);
- break;
-
- }
-
/* Read the file position of the fragment */
ReadFilePos (F, &Frag->Pos);
+ /* Read the additional line info and resolve it */
+ LineInfoIndex = ReadVar (F);
+ if (LineInfoIndex) {
+ --LineInfoIndex;
+ if (LineInfoIndex >= O->LineInfoCount) {
+ Internal ("In module `%s', file `%s', line %lu: Invalid line "
+ "info with index %u (max count %u)",
+ GetObjFileName (O),
+ GetSourceFileName (O, Frag->Pos.Name),
+ Frag->Pos.Line, LineInfoIndex, O->LineInfoCount);
+ }
+ /* Point from the fragment to the line info... */
+ Frag->LI = O->LineInfos[LineInfoIndex];
+ /* ...and back from the line info to the fragment */
+ CollAppend (&Frag->LI->Fragments, Frag);
+ }
+
/* Remember the module we had this fragment from */
Frag->Obj = O;
-
- /* Next one */
- CHECK (Size >= Frag->Size);
- Size -= Frag->Size;
}
- /* Increment the segment size by the section size */
- S->Size += Sec->Size;
-
/* Return the section */
return Sec;
}
-Segment* SegFind (const char* Name)
+Segment* SegFind (unsigned Name)
/* Return the given segment or NULL if not found. */
{
- return SegFindInternal (Name, HashStr (Name) % HASHTAB_SIZE);
+ Segment* S = HashTab[Name & HASHTAB_MASK];
+ while (S) {
+ if (Name == S->Name) {
+ /* Found */
+ break;
+ }
+ S = S->Next;
+ }
+ /* Not found */
+ return S;
}
unsigned long Count = F->Size;
while (Count--) {
if (*Data++ != 0) {
- return 0;
+ return 0;
}
}
} else if (F->Type == FRAG_EXPR || F->Type == FRAG_SEXPR) {
Segment* Seg = SegRoot;
while (Seg) {
Section* S = Seg->SecRoot;
- printf ("Segment: %s (%lu)\n", Seg->Name, Seg->Size);
+ printf ("Segment: %s (%lu)\n", GetString (Seg->Name), Seg->Size);
while (S) {
Fragment* F = S->FragRoot;
printf (" Section:\n");
switch (F->Type) {
case FRAG_LITERAL:
- printf (" Literal (%lu bytes):", F->Size);
+ printf (" Literal (%u bytes):", F->Size);
Count = F->Size;
Data = F->LitBuf;
I = 100;
while (Count--) {
if (I > 75) {
printf ("\n ");
- I = 3;
+ I = 3;
}
printf (" %02X", *Data++);
I += 3;
break;
case FRAG_EXPR:
- printf (" Expression (%lu bytes):\n", F->Size);
+ printf (" Expression (%u bytes):\n", F->Size);
printf (" ");
- DumpExpr (F->Expr);
+ DumpExpr (F->Expr, 0);
break;
case FRAG_SEXPR:
- printf (" Signed expression (%lu bytes):\n", F->Size);
+ printf (" Signed expression (%u bytes):\n", F->Size);
printf (" ");
- DumpExpr (F->Expr);
+ DumpExpr (F->Expr, 0);
break;
case FRAG_FILL:
- printf (" Empty space (%lu bytes)\n", F->Size);
- break;
+ printf (" Empty space (%u bytes)\n", F->Size);
+ break;
default:
Internal ("Invalid fragment type: %02X", F->Type);
/* If we have fill bytes, write them now */
WriteMult (Tgt, S->FillVal, Sec->Fill);
+ Offs += Sec->Fill;
/* Loop over all fragments in this section */
Frag = Sec->FragRoot;
while (Frag) {
+ /* Do fragment alignment checks */
+
+
+
+ /* Output fragment data */
switch (Frag->Type) {
case FRAG_LITERAL:
/* Call the users function and evaluate the result */
switch (F (Frag->Expr, Sign, Frag->Size, Offs, Data)) {
- case SEG_EXPR_OK:
- break;
+ case SEG_EXPR_OK:
+ break;
- case SEG_EXPR_RANGE_ERROR:
- Error ("Range error in module `%s', line %lu",
- Frag->Obj->Files [Frag->Pos.Name], Frag->Pos.Line);
+ case SEG_EXPR_RANGE_ERROR:
+ Error ("Range error in module `%s', line %lu",
+ GetSourceFileName (Frag->Obj, Frag->Pos.Name),
+ Frag->Pos.Line);
+ break;
+
+ case SEG_EXPR_TOO_COMPLEX:
+ Error ("Expression too complex in module `%s', line %lu",
+ GetSourceFileName (Frag->Obj, Frag->Pos.Name),
+ Frag->Pos.Line);
break;
- case SEG_EXPR_TOO_COMPLEX:
- Error ("Expression too complex in module `%s', line %lu",
- Frag->Obj->Files [Frag->Pos.Name], Frag->Pos.Line);
+ case SEG_EXPR_INVALID:
+ Error ("Invalid expression in module `%s', line %lu",
+ GetSourceFileName (Frag->Obj, Frag->Pos.Name),
+ Frag->Pos.Line);
break;
default:
return -1;
} else {
/* Sort segments with equal starts by name */
- return strcmp (S1->Name, S2->Name);
+ return strcmp (GetString (S1->Name), GetString (S2->Name));
}
}
/* Get a pointer to the segment */
S = SegPool [I];
- /* Print empty segments only if explicitly requested */
- if (VerboseMap || S->Size > 0) {
- /* Print the segment data */
- fprintf (F, "%-20s %06lX %06lX %06lX\n",
- S->Name, S->PC, S->PC + S->Size, S->Size);
+ /* Print empty segments only if explicitly requested */
+ if (VerboseMap || S->Size > 0) {
+ /* Print the segment data */
+ long End = S->PC + S->Size;
+ if (S->Size > 0) {
+ /* Point to last element addressed */
+ --End;
+ }
+ fprintf (F, "%-20s %06lX %06lX %06lX\n",
+ GetString (S->Name), S->PC, End, S->Size);
}
}
+void PrintDbgSegments (FILE* F)
+/* Output the segments to the debug file */
+{
+ Segment* S;
+
+ /* Walk over all segments */
+ S = SegRoot;
+ while (S) {
+
+ /* Ignore empty segments */
+ if (S->Size > 0) {
+
+ /* Print the segment data */
+ fprintf (F, "segment\t\"%s\",start=0x%06lX,size=0x%04lX,addrsize=%s,type=%s\n",
+ GetString (S->Name), S->PC, S->Size,
+ AddrSizeToStr (S->AddrSize),
+ S->ReadOnly? "ro" : "rw");
+ }
+
+ /* Follow the linked list */
+ S = S->List;
+ }
+}
+
+
+
void CheckSegments (void)
/* Walk through the segment list and check if there are segments that were
* not written to the output file. Output an error if this is the case.
{
Segment* S = SegRoot;
while (S) {
- if (S->Size > 0 && S->Dumped == 0) {
- Error ("Missing memory area assignment for segment `%s'", S->Name);
+ if (S->Size > 0 && S->Dumped == 0) {
+ Error ("Missing memory area assignment for segment `%s'",
+ GetString (S->Name));
}
S = S->List;
}
projects / cc65 / blobdiff