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Added an OPTIONAL segment attribute

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git-svn-id: svn://svn.cc65.org/cc65/trunk@2162 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2003-05-22 22:20:32 +00:00
parent 741362f830
commit 40609f0a3c
3 changed files with 108 additions and 93 deletions
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177
src/ld65/config.c
View File

@ -6,10 +6,10 @@
/* */
/* */
/* */
/* (C) 1998-2002 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 */
@ -98,6 +98,7 @@ unsigned SegDescCount; /* Number of entries in list */
#define SA_DEFINE 0x0010
#define SA_OFFSET 0x0020
#define SA_START 0x0040
#define SA_OPTIONAL 0x0080
@ -336,11 +337,10 @@ static SegDesc* NewSegDesc (const char* Name)
CfgError ("Segment `%s' defined twice", Name);
}
/* Verify that the given segment does really exist */
/* Search for the actual segment in the input files. The function may
* return NULL (no such segment), this is checked later.
*/
Seg = SegFind (Name);
if (Seg == 0) {
CfgWarning ("Segment `%s' does not exist", Name);
}
/* Allocate memory */
S = xmalloc (sizeof (SegDesc) + Len);
@ -608,21 +608,22 @@ static void ParseSegments (void)
/* Parse a SEGMENTS section */
{
static const IdentTok Attributes [] = {
{ "LOAD", CFGTOK_LOAD },
{ "RUN", CFGTOK_RUN },
{ "TYPE", CFGTOK_TYPE },
{ "ALIGN", CFGTOK_ALIGN },
{ "DEFINE", CFGTOK_DEFINE },
{ "OFFSET", CFGTOK_OFFSET },
{ "START", CFGTOK_START },
{ "LOAD", CFGTOK_LOAD },
{ "OFFSET", CFGTOK_OFFSET },
{ "OPTIONAL", CFGTOK_OPTIONAL },
{ "RUN", CFGTOK_RUN },
{ "START", CFGTOK_START },
{ "TYPE", CFGTOK_TYPE },
};
static const IdentTok Types [] = {
{ "RO", CFGTOK_RO },
{ "RW", CFGTOK_RW },
{ "BSS", CFGTOK_BSS },
{ "ZP", CFGTOK_ZP },
{ "WP", CFGTOK_WPROT },
{ "WPROT", CFGTOK_WPROT },
{ "RO", CFGTOK_RO },
{ "RW", CFGTOK_RW },
{ "BSS", CFGTOK_BSS },
{ "ZP", CFGTOK_ZP },
{ "WP", CFGTOK_WPROT },
{ "WPROT", CFGTOK_WPROT },
};
unsigned Count;
@ -653,66 +654,74 @@ static void ParseSegments (void)
/* Check which attribute was given */
switch (AttrTok) {
case CFGTOK_LOAD:
FlagAttr (&S->Attr, SA_LOAD, "LOAD");
S->Load = CfgGetMemory (CfgSVal);
break;
case CFGTOK_RUN:
FlagAttr (&S->Attr, SA_RUN, "RUN");
S->Run = CfgGetMemory (CfgSVal);
break;
case CFGTOK_TYPE:
FlagAttr (&S->Attr, SA_TYPE, "TYPE");
CfgSpecialToken (Types, ENTRY_COUNT (Types), "Type");
switch (CfgTok) {
case CFGTOK_RO: S->Flags |= SF_RO; break;
case CFGTOK_RW: /* Default */ break;
case CFGTOK_BSS: S->Flags |= SF_BSS; break;
case CFGTOK_ZP: S->Flags |= (SF_BSS | SF_ZP); break;
case CFGTOK_WPROT: S->Flags |= (SF_RO | SF_WPROT); break;
default: Internal ("Unexpected token: %d", CfgTok);
}
break;
case CFGTOK_ALIGN:
CfgAssureInt ();
FlagAttr (&S->Attr, SA_ALIGN, "ALIGN");
CfgRangeCheck (1, 0x10000);
S->Align = BitFind (CfgIVal);
if ((0x01UL << S->Align) != CfgIVal) {
CfgError ("Alignment must be a power of 2");
}
S->Flags |= SF_ALIGN;
break;
CfgAssureInt ();
FlagAttr (&S->Attr, SA_ALIGN, "ALIGN");
CfgRangeCheck (1, 0x10000);
S->Align = BitFind (CfgIVal);
if ((0x01UL << S->Align) != CfgIVal) {
CfgError ("Alignment must be a power of 2");
}
S->Flags |= SF_ALIGN;
break;
case CFGTOK_DEFINE:
FlagAttr (&S->Attr, SA_DEFINE, "DEFINE");
/* Map the token to a boolean */
CfgBoolToken ();
if (CfgTok == CFGTOK_TRUE) {
S->Flags |= SF_DEFINE;
}
break;
FlagAttr (&S->Attr, SA_DEFINE, "DEFINE");
/* Map the token to a boolean */
CfgBoolToken ();
if (CfgTok == CFGTOK_TRUE) {
S->Flags |= SF_DEFINE;
}
break;
case CFGTOK_LOAD:
FlagAttr (&S->Attr, SA_LOAD, "LOAD");
S->Load = CfgGetMemory (CfgSVal);
break;
case CFGTOK_OFFSET:
CfgAssureInt ();
FlagAttr (&S->Attr, SA_OFFSET, "OFFSET");
CfgRangeCheck (1, 0x1000000);
S->Addr = CfgIVal;
S->Flags |= SF_OFFSET;
break;
FlagAttr (&S->Attr, SA_OFFSET, "OFFSET");
CfgRangeCheck (1, 0x1000000);
S->Addr = CfgIVal;
S->Flags |= SF_OFFSET;
break;
case CFGTOK_OPTIONAL:
FlagAttr (&S->Attr, SA_OPTIONAL, "OPTIONAL");
CfgBoolToken ();
if (CfgTok == CFGTOK_TRUE) {
S->Flags |= SF_OPTIONAL;
}
break;
case CFGTOK_RUN:
FlagAttr (&S->Attr, SA_RUN, "RUN");
S->Run = CfgGetMemory (CfgSVal);
break;
case CFGTOK_START:
CfgAssureInt ();
FlagAttr (&S->Attr, SA_START, "START");
CfgRangeCheck (1, 0x1000000);
S->Addr = CfgIVal;
S->Flags |= SF_START;
break;
CfgAssureInt ();
FlagAttr (&S->Attr, SA_START, "START");
CfgRangeCheck (1, 0x1000000);
S->Addr = CfgIVal;
S->Flags |= SF_START;
break;
default:
case CFGTOK_TYPE:
FlagAttr (&S->Attr, SA_TYPE, "TYPE");
CfgSpecialToken (Types, ENTRY_COUNT (Types), "Type");
switch (CfgTok) {
case CFGTOK_RO: S->Flags |= SF_RO; break;
case CFGTOK_RW: /* Default */ break;
case CFGTOK_BSS: S->Flags |= SF_BSS; break;
case CFGTOK_ZP: S->Flags |= (SF_BSS | SF_ZP); break;
case CFGTOK_WPROT: S->Flags |= (SF_RO | SF_WPROT); break;
default: Internal ("Unexpected token: %d", CfgTok);
}
break;
default:
FAIL ("Unexpected attribute token");
}
@ -738,13 +747,13 @@ static void ParseSegments (void)
S->Align = 0;
}
/* If the segment is marked as BSS style, and if the segment exists
* in any of the object file, check that there's no initialized data
/* If the segment is marked as BSS style, and if the segment exists
* in any of the object file, check that there's no initialized data
* in the segment.
*/
if ((S->Flags & SF_BSS) != 0 && S->Seg != 0 && !IsBSSType (S->Seg)) {
Warning ("%s(%u): Segment with type `bss' contains initialized data",
CfgGetName (), CfgErrorLine);
CfgGetName (), CfgErrorLine);
}
/* If the segment is marked as BSS style, it may not have separate
@ -758,23 +767,23 @@ static void ParseSegments (void)
/* Don't allow read/write data to be put into a readonly area */
if ((S->Flags & SF_RO) == 0) {
if (S->Run->Flags & MF_RO) {
CfgError ("Cannot put r/w segment `%s' in r/o memory area `%s'",
S->Name, S->Run->Name);
CfgError ("Cannot put r/w segment `%s' in r/o memory area `%s'",
S->Name, S->Run->Name);
}
}
/* Only one of ALIGN, START and OFFSET may be used */
Count = ((S->Flags & SF_ALIGN) != 0) +
((S->Flags & SF_OFFSET) != 0) +
((S->Flags & SF_START) != 0);
((S->Flags & SF_START) != 0);
if (Count > 1) {
CfgError ("Only one of ALIGN, START, OFFSET may be used");
}
/* If this segment does exist in any of the object files, insert the
* descriptor into the list of segment descriptors. Otherwise discard
* it silently, because the segment pointer in the descriptor is
* invalid.
* descriptor into the list of segment descriptors. Otherwise print a
* warning and discard it, because the segment pointer in the
* descriptor is invalid.
*/
if (S->Seg != 0) {
/* Insert the descriptor into the list of all descriptors */
@ -782,11 +791,15 @@ static void ParseSegments (void)
/* Insert the segment into the memory area list */
MemoryInsert (S->Run, S);
if ((S->Flags & SF_LOAD_AND_RUN) != 0) {
/* We have a separate RUN area given */
MemoryInsert (S->Load, S);
/* We have a separate RUN area given */
MemoryInsert (S->Load, S);
}
} else {
/* Segment does not exist, discard the descriptor */
/* Print a warning if the segment is not optional */
if ((S->Flags & SF_OPTIONAL) == 0) {
CfgWarning ("Segment `%s' does not exist", S->Name);
}
/* Discard the descriptor */
FreeSegDesc (S);
}

15
src/ld65/config.h
View File

@ -6,10 +6,10 @@
/* */
/* */
/* */
/* (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 */
@ -107,14 +107,15 @@ extern unsigned SegDescCount; /* Number of entries in list */
#define MF_RO 0x0004 /* Read only memory area */
/* Segment flags */
#define SF_RO 0x0001 /* Read only segment */
#define SF_RO 0x0001 /* Read only segment */
#define SF_BSS 0x0002 /* Segment is BSS style segment */
#define SF_ZP 0x0004 /* Zeropage segment (o65 only) */
#define SF_ZP 0x0004 /* Zeropage segment (o65 only) */
#define SF_WPROT 0x0008 /* Write protected segment */
#define SF_DEFINE 0x0010 /* Define start and size */
#define SF_ALIGN 0x0020 /* Align the segment */
#define SF_OFFSET 0x0040 /* Segment has offset in memory */
#define SF_START 0x0080 /* Segment has fixed start address */
#define SF_OPTIONAL 0x0100 /* Segment is optional (must not exist) */
#define SF_LOAD_AND_RUN 0x1000 /* LOAD and RUN given */
#define SF_RUN_DEF 0x2000 /* RUN symbols already defined */
#define SF_LOAD_DEF 0x4000 /* LOAD symbols already defined */
@ -145,4 +146,4 @@ void CfgWriteTarget (void);

9
src/ld65/scanner.h
View File

@ -6,10 +6,10 @@
/* */
/* */
/* */
/* (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 */
@ -85,6 +85,7 @@ typedef enum {
CFGTOK_RUN,
CFGTOK_ALIGN,
CFGTOK_OFFSET,
CFGTOK_OPTIONAL,
CFGTOK_RO,
CFGTOK_RW,