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Fixed a couple of bugs (silent backtrace not totally silent, crashes 

when the stack is corrupted or similar).
This commit is contained in:
Ove Kaaven 1999-05-09 15:51:43 +00:00 committed by Alexandre Julliard
parent 1e1eb509ea
commit c6c04836e8
1 changed files with 10 additions and 1 deletions
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11
debugger/stack.c
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@ -189,7 +189,8 @@ static void DEBUG_DoBackTrace(int noisy)
nframe = 1;
if (frames) DBG_free( frames );
frames = (struct bt_info *) DBG_alloc( sizeof(struct bt_info) );
fprintf(stderr,"%s%d ",(curr_frame == 0 ? "=>" : " "), frameno);
if (noisy)
fprintf(stderr,"%s%d ",(curr_frame == 0 ? "=>" : " "), frameno);
if (IS_SELECTOR_SYSTEM(ss)) ss = 0;
if (IS_SELECTOR_SYSTEM(cs)) cs = 0;
@ -232,6 +233,10 @@ static void DEBUG_DoBackTrace(int noisy)
sw_addr.seg = ss;
sw_addr.off = cur_switch;
}
if (DEBUG_IsBadReadPtr(&sw_addr,1)) {
sw_addr.seg = (DWORD)-1;
sw_addr.off = (DWORD)-1;
}
for (ok = TRUE; ok;) {
if ((frames[frameno].ss == sw_addr.seg) &&
@ -269,6 +274,10 @@ static void DEBUG_DoBackTrace(int noisy)
is16 = TRUE;
}
if (DEBUG_IsBadReadPtr(&sw_addr,1)) {
sw_addr.seg = (DWORD)-1;
sw_addr.off = (DWORD)-1;
}
} else {
/* ordinary stack frame */
ok = is16 ? DEBUG_Frame16( &addr, &cs, ++frameno, noisy)