diff options
Diffstat (limited to 'ld/table.c')
| -rw-r--r-- | ld/table.c | 31 |
1 files changed, 31 insertions, 0 deletions
@@ -16,7 +16,11 @@ PRIVATE struct symstruct *hashtab[HASHTABSIZE]; /* hash table */ PRIVATE char *tableptr; /* next free spot in catchall table */ PRIVATE char *tableend; /* ptr to spot after last in table */ +PUBLIC int maxused = 0; /* Stats */ +PRIVATE int mainavail, usedtop; /* Stats */ + FORWARD struct symstruct **gethashptr P((char *name)); +FORWARD void check_used P((void)); /* initialise symbol table */ @@ -33,6 +37,9 @@ PUBLIC void syminit() tableend = tableptr + i; for (i = 0; i < HASHTABSIZE; i++) hashtab[i] = NUL_PTR; + + mainavail = tableend - tableptr; + usedtop = 0; } /* add named symbol to end of table - initialise only name and next fields */ @@ -130,6 +137,9 @@ unsigned nbytes; register char *source; register char *target; + usedtop += nbytes; + mainavail -= nbytes; + source = tableptr; target = tableend; while (nbytes--) @@ -157,7 +167,9 @@ unsigned nbytes; PUBLIC void ourfree(cptr) char *cptr; { + check_used(); tableptr = cptr; + check_used(); } /* read string from file into table at offset suitable for next symbol */ @@ -172,6 +184,7 @@ PUBLIC char *readstring() start = s = ((struct symstruct *) tableptr)->name; while (TRUE) { + /* Stats: need a checkused against 's', maybe. */ if (s >= tableend) outofmemory(); if ((c = readchar()) < 0) @@ -187,9 +200,27 @@ PUBLIC char *readstring() PUBLIC void release(cptr) char *cptr; { + check_used(); + mainavail += cptr - tableend; + usedtop -= cptr - tableend; + tableend = cptr; } +PRIVATE void check_used() +{ + int used; + + used = usedtop + mainavail - (tableend - tableptr); + if (used > maxused) maxused = used; +} + +PUBLIC int memory_used() +{ + check_used(); + return maxused; +} + /* allocate space for string */ PUBLIC char *stralloc(s) |