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improved the checking of sections

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This commit is contained in:
ceriel 1987-11-03 16:09:55 +00:00
parent 2682c42a9e
commit b236a708e2
1 changed files with 19 additions and 6 deletions
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25
mach/m68020/cv/cv.c
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@ -65,6 +65,22 @@ SCNHDR scnh[NS];
FILE *input; FILE *input;
FILE *output; FILE *output;
long align(a,b)
long a,b;
{
a += b - 1;
return a - a % b;
}
int
follows(pa, pb)
register struct outsect *pa, *pb;
{
/* return 1 if pa follows pb */
return pa->os_base == align(pb->os_base+pb->os_size, pa->os_lign);
}
main(argc, argv) main(argc, argv)
int argc; int argc;
char *argv[]; char *argv[];
@ -116,8 +132,7 @@ main(argc, argv)
if ( outsect[BSSSG].os_flen != 0 ) if ( outsect[BSSSG].os_flen != 0 )
printf("Warning: bss space contains initialized data\n") ; printf("Warning: bss space contains initialized data\n") ;
/* as actually writes zeroes in the bss segment */ /* as actually writes zeroes in the bss segment */
if ( outsect[BSSSG].os_base != outsect[DATASG].os_base+ if ( ! follows(&outsect[BSSSG], &outsect[DATASG]))
outsect[DATASG].os_size )
fatal("bss segment must follow data segment\n") ; fatal("bss segment must follow data segment\n") ;
/* 410 file with ROMSG in instruction space */ /* 410 file with ROMSG in instruction space */
@ -125,14 +140,12 @@ main(argc, argv)
magic= 0410 ; magic= 0410 ;
textsize= outsect[TEXTSG].os_size + outsect[ROMSG].os_size ; textsize= outsect[TEXTSG].os_size + outsect[ROMSG].os_size ;
datasize= outsect[DATASG].os_size ; datasize= outsect[DATASG].os_size ;
if ( outsect[ROMSG].os_base != outsect[TEXTSG].os_base+ if ( ! follows(&outsect[ROMSG], &outsect[TEXTSG]))
outsect[TEXTSG].os_size )
fatal("rom segment must follow text\n") ; fatal("rom segment must follow text\n") ;
bsssize = outsect[BSSSG].os_size; bsssize = outsect[BSSSG].os_size;
if ( outhead.oh_nsect==NSECT ) { if ( outhead.oh_nsect==NSECT ) {
if ( outsect[LSECT].os_base != outsect[BSSSG].os_base+ if ( ! follows(&outsect[LSECT], &outsect[BSSSG]))
outsect[BSSSG].os_size )
fatal("end segment must follow bss\n") ; fatal("end segment must follow bss\n") ;
if ( outsect[LSECT].os_size != 0 ) if ( outsect[LSECT].os_size != 0 )
fatal("end segment must be empty\n") ; fatal("end segment must be empty\n") ;