diff options
Diffstat (limited to 'bcc/input.c')
| -rw-r--r-- | bcc/input.c | 76 |
1 files changed, 75 insertions, 1 deletions
diff --git a/bcc/input.c b/bcc/input.c index 4f8ec6a..317c053 100644 --- a/bcc/input.c +++ b/bcc/input.c @@ -19,6 +19,10 @@ #define INBUFSIZE 2048 +#ifndef BUILTIN_CPP +#define NO_EOFHACK +#endif + struct fbufstruct /* file buffer structure */ { struct fcbstruct fcb; /* status after opening an include sub-file */ @@ -51,8 +55,10 @@ PRIVATE struct inclist inclast = #endif NULL, }; +#ifdef BUILTIN_CPP PRIVATE fastin_t inclevel; /* nest level of include files */ /* depends on zero init */ +#endif PRIVATE struct fbufstruct *inputbuf; /* current input file buffer */ /* its fcb only to date in includes */ /* depends on zero (NULL) init */ @@ -63,8 +69,10 @@ FORWARD void backslash P((void)); #endif FORWARD void definefile P((char *fname)); FORWARD void inputinit P((char *fname, fd_t fd)); -FORWARD void leaveinclude P((void)); FORWARD void usage P((void)); +#ifdef BUILTIN_CPP +FORWARD void leaveinclude P((void)); +#endif #ifdef ARBITRARY_BACKSLASH_NEWLINES PRIVATE void backslash() @@ -138,10 +146,13 @@ PUBLIC void closein() #else close(input.fd); #endif +#ifdef BUILTIN_CPP while (inclevel != 0) leaveinclude(); +#endif } +#ifdef BUILTIN_CPP PRIVATE void definefile(fname) char *fname; { @@ -155,6 +166,7 @@ char *fname; definestring(def); ourfree(def); } +#endif PUBLIC void errorloc() { @@ -170,6 +182,7 @@ PUBLIC void errorloc() { outudec(input.linenumber); outbyte('.'); +#ifdef BUILTIN_CPP if (maclevel == 0) outudec((unsigned) (lineptr - inputbuf->fbuf) - input.lineoffset); else @@ -180,6 +193,9 @@ PUBLIC void errorloc() outudec((unsigned) maclevel); outbyte(')'); } +#else + outudec((unsigned) (lineptr - inputbuf->fbuf) - input.lineoffset); +#endif } infbuf->fcb.includer = input.includer; while ((infbuf = infbuf->fcb.includer) != NULL) @@ -202,6 +218,7 @@ PUBLIC void gch1() specialchar(); } +#ifdef BUILTIN_CPP /* process #include */ PUBLIC void include() @@ -217,10 +234,15 @@ PUBLIC void include() while (blanksident()) { +#ifdef BUILTIN_CPP if ((gsymptr = findlorg(gsname)) == NULL || gsymptr->flags != DEFINITION) break; entermac(); +#else + if ((gsymptr = findlorg(gsname)) == NULL ) + break; +#endif } if ((terminator = ch) == '<') terminator = '>'; @@ -345,6 +367,7 @@ ts_s_filename_tot -= charptr - fnameptr; #endif charptr = fnameptr; } +#endif /* initialise current input file */ @@ -373,14 +396,18 @@ ts_s_inputbuf_tot += sizeof *inputbuf; inputbuf = newinputbuf; newinputbuf->fname = fname; newinputbuf->fname_malloced = FALSE; +#ifdef BUILTIN_CPP undefinestring(filemacro); definefile(fname); if (orig_cppmode && !suppress_line_numbers) outcpplinenumber(1, fname, input.includer == NULL ? "" : " 1"); +#endif *(input.limit = newinputbuf->fbuf) = EOL; +#ifdef BUILTIN_CPP /* dummy line so #include processing can start with skipline() */ ch = *(lineptr = newinputbuf->fbuf - 1) = EOL; +#endif } PUBLIC void linecontol() @@ -412,11 +439,14 @@ ts_s_pathname_tot -= strlen(inputbuf->fname) + 1; inputbuf->fname = linename; ptr=lineptr; +#ifdef BUILTIN_CPP undefinestring(filemacro); definefile(inputbuf->fname); +#endif ch = *(lineptr = ptr); } +#ifdef BUILTIN_CPP /* switch from include file to file which included it */ PRIVATE void leaveinclude() @@ -442,13 +472,16 @@ ts_s_inputbuf_tot -= sizeof *inputbuf; #endif inputbuf = input.includer; input = inputbuf->fcb; +#ifdef BUILTIN_CPP undefinestring(filemacro); definefile(inputbuf->fname); +#endif ch = *(lineptr = input.lineptr); skipline(); if (orig_cppmode && !suppress_line_numbers) outcpplinenumber(input.linenumber, inputbuf->fname, " 2"); } +#endif /* open input and output files and get options */ @@ -499,7 +532,9 @@ char *argv[]; #ifdef DEBUG case 'd': /* print debugging information in asm output */ #endif +#ifdef BUILTIN_CPP case 'E': /* acting as cpp */ +#endif case 'f': /* pass first argument in register */ #ifdef DYNAMIC_LONG_ORDER case 'l': /* long big-endian */ @@ -520,6 +555,7 @@ char *argv[]; if (arg[1] == '0') /* flag 0 is negative logic flag 3 */ flag['3'] = TRUE + FALSE - flag['0']; break; +#ifdef BUILTIN_CPP case 'D': definestring(arg + 2); break; @@ -536,6 +572,7 @@ ts_s_includelist += sizeof *incnew; case 'U': undefinestring(arg + 2); break; +#endif case 'o': if (arg[2] != 0 || ++argn >= argc) usage(); @@ -546,6 +583,7 @@ ts_s_includelist += sizeof *incnew; break; } } +#ifdef BUILTIN_CPP #ifdef I8088 #ifdef I80386 if (flag['3']) @@ -607,6 +645,28 @@ ts_s_includelist += sizeof *incnew; #ifdef NOFLOAT definestring("__HAS_NO_FLOATS__"); #endif + +#else /* !BUILTIN_CPP */ + +#ifdef I80386 + if (flag['3']) i386_32 = TRUE; +#endif + if (flag['c']) callersaves = TRUE; +#ifdef DEBUG + debugon = flag['d']; +#endif + if (flag['f']) arg1inreg = TRUE; + arg1op = arg1inreg ? ROOTLISTOP : LISTOP; +#ifdef DYNAMIC_LONG_ORDER + if (flag['l']) long_big_endian = TRUE; +#endif + suppress_line_numbers = flag['P']; +#ifdef POSINDEPENDENT + if (flag['p']) posindependent = TRUE; +#endif + if (flag['O']) optimise = TRUE; + +#endif ctext = flag['t']; #ifdef DEBUG if (ctext) debugon = 1; @@ -642,6 +702,7 @@ PUBLIC void skipeol() outbyte(' '); outline(lineptr); } +#ifdef BUILTIN_CPP #ifndef ASM_BARE if (!virtual_nl && (orig_cppmode || asmmode)) #else @@ -651,6 +712,13 @@ PUBLIC void skipeol() if (!skip_printing_nl) #endif outbyte('\n'); +#else /* !BUILTIN_CPP */ + if (asmmode) +#ifdef INSERT_BACKSLASH_NEWLINES + if (!skip_printing_nl) +#endif + outbyte('\n'); +#endif #ifdef INSERT_BACKSLASH_NEWLINES if (bs_state == 1 && *(lineptr - 1) == EOL) @@ -715,6 +783,7 @@ case0: ch = *lineptr; if (nread == 0) { +#ifdef BUILTIN_CPP if (inclevel == 0) { eofile = TRUE; @@ -725,6 +794,9 @@ case0: leaveinclude(); skipeol(); } +#else + eofile = TRUE; +#endif return; } if (ctext && !asmmode) @@ -738,6 +810,7 @@ case0: PUBLIC void specialchar() { +#ifdef BUILTIN_CPP if (maclevel != 0) { if (ch == EOL) /* it might also be backslash or COEOL */ @@ -745,6 +818,7 @@ PUBLIC void specialchar() if (ch != EOL) return; } +#endif more: #ifdef ARBITRARY_BACKSLASH_NEWLINES if (ch == '\\') |