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Annotation of researchv10no/cmd/mk/src/alloc.c, revision 1.1.1.1

1.1       root        1: #include       "libc.h"
                      2: 
                      3: static int goo;                /* so no empty object on cray */
                      4: 
                      5: #ifndef        CRAY
                      6: 
                      7: #define        A(x)    ((((long)x)+sizeof(long)-1)&~(sizeof(long)-1))
                      8: 
                      9: char *next;
                     10: int nleft;
                     11: 
                     12: char *
                     13: malloc(n)
                     14: {
                     15:        extern char *sbrk();
                     16:        char *s;
                     17: 
                     18:        n = A(n);
                     19:        if(n > nleft){
                     20:                next = sbrk(nleft = A(32000));
                     21:                if(next == (char *)-1){
                     22:                        perror("mk: sbrk");
                     23:                        Exit();
                     24:                }
                     25:        }
                     26:        s = next;
                     27:        next += n;
                     28:        nleft -= n;
                     29:        return(s);
                     30: }
                     31: 
                     32: free(s)
                     33:        char *s;
                     34: {
                     35: }
                     36: 
                     37: char *
                     38: realloc(s, n)
                     39:        char *s;
                     40:        unsigned n;
                     41: {
                     42:        char *r;
                     43: 
                     44:        r = malloc(n);
                     45:        memcpy(r, s, n);
                     46:        return(r);
                     47: }
                     48: 
                     49: #endif

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