X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=sect.c;h=f797300395474822bef6688f02c9fabfd8f9846a;hp=3fd627a409560ea80ad3c38f5fc47ac1db93ffa1;hb=11a78647f7f170e6ea39dd04a3734a359151debb;hpb=233e5e908f5a865233f775520dc35917f13d2d26 diff --git a/sect.c b/sect.c index 3fd627a..f797300 100644 --- a/sect.c +++ b/sect.c @@ -17,52 +17,53 @@ #include "symbol.h" #include "token.h" + // Section descriptors -SECT sect[NSECTS]; // All sections... -int cursect; // Current section number +SECT sect[NSECTS]; // All sections... +int cursect; // Current section number // These are copied from the section descriptor, the current code chunk // descriptor and the current fixup chunk descriptor when a switch is made into // a section. They are copied back to the descriptors when the section is left. -WORD scattr; // Section attributes -LONG sloc; // Current loc in section +WORD scattr; // Section attributes +LONG sloc; // Current loc in section -CHUNK * scode; // Current (last) code chunk -LONG challoc; // # bytes alloc'd to code chunk -LONG ch_size; // # bytes used in code chunk -char * chptr; // Deposit point in code chunk buffer +CHUNK * scode; // Current (last) code chunk +LONG challoc; // # bytes alloc'd to code chunk +LONG ch_size; // # bytes used in code chunk +char * chptr; // Deposit point in code chunk buffer -CHUNK * sfix; // Current (last) fixup chunk -LONG fchalloc; // # bytes alloc'd to fixup chunk -LONG fchsize; // # bytes used in fixup chunk -PTR fchptr; // Deposit point in fixup chunk buffer +CHUNK * sfix; // Current (last) fixup chunk +LONG fchalloc; // # bytes alloc'd to fixup chunk +LONG fchsize; // # bytes used in fixup chunk +PTR fchptr; // Deposit point in fixup chunk buffer -unsigned fwdjump[MAXFWDJUMPS]; // forward jump check table -unsigned fwindex = 0; // forward jump index +unsigned fwdjump[MAXFWDJUMPS]; // forward jump check table +unsigned fwindex = 0; // forward jump index // Return a size (SIZB, SIZW, SIZL) or 0, depending on what kind of fixup is // associated with a location. static char fusiztab[] = { - 0, // FU_QUICK - 1, // FU_BYTE - 2, // FU_WORD - 2, // FU_WBYTE - 4, // FU_LONG - 1, // FU_BBRA - 0, // (unused) - 1, // FU_6BRA + 0, // FU_QUICK + 1, // FU_BYTE + 2, // FU_WORD + 2, // FU_WBYTE + 4, // FU_LONG + 1, // FU_BBRA + 0, // (unused) + 1, // FU_6BRA }; // Offset to REAL fixup location static char fusizoffs[] = { - 0, // FU_QUICK - 0, // FU_BYTE - 0, // FU_WORD - 1, // FU_WBYTE - 0, // FU_LONG - 1, // FU_BBRA - 0, // (unused) - 0, // FU_6BRA + 0, // FU_QUICK + 0, // FU_BYTE + 0, // FU_WORD + 1, // FU_WBYTE + 0, // FU_LONG + 1, // FU_BBRA + 0, // (unused) + 0, // FU_6BRA }; @@ -71,9 +72,7 @@ static char fusizoffs[] = { // void mksect(int sno, WORD attr) { - SECT * p; // Section pointer - - p = §[sno]; + SECT * p = §[sno]; p->scattr = attr; p->sloc = 0; p->scode = p->sfcode = NULL; @@ -125,13 +124,13 @@ void savsect(void) { SECT * p = §[cursect]; - p->scattr = scattr; // Bailout section vars + p->scattr = scattr; // Bailout section vars p->sloc = sloc; - if (scode != NULL) // Bailout code chunk + if (scode != NULL) // Bailout code chunk scode->ch_size = ch_size; - if (sfix != NULL) // Bailout fixup chunk + if (sfix != NULL) // Bailout fixup chunk sfix->ch_size = fchsize; } @@ -212,6 +211,7 @@ int fixtest(int sno, LONG loc) // int chcheck(LONG amt) { + DEBUG { printf("chcheck(%u)\n", amt); } // If in BSS section, no allocation required if (scattr & SBSS) return 0; @@ -219,12 +219,14 @@ int chcheck(LONG amt) if (!amt) amt = CH_THRESHOLD; + DEBUG { printf(" challoc=%i, ch_size=%i, diff=%i\n", challoc, ch_size, challoc-ch_size); } if ((int)(challoc - ch_size) >= (int)amt) return 0; if (amt < CH_CODE_SIZE) amt = CH_CODE_SIZE; + DEBUG { printf(" amt (adjusted)=%u\n", amt); } SECT * p = §[cursect]; CHUNK * cp = malloc(sizeof(CHUNK) + amt); @@ -453,6 +455,10 @@ int ResolveFixups(int sno) loc = *fup.lp++; cfileno = *fup.wp++; curlineno = (int)*fup.wp++; +DEBUG { printf("ResolveFixups: cfileno=%u\n", cfileno); } + // This is based on global vars cfileno, curfname :-P + // This approach is kinda meh as well. I think we can do better than this. + SetFilenameForErrorReporting(); esym = NULL;