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Work towards improving signals and processes

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This commit is contained in:
Justine Tunney 2021-01-27 19:34:02 -08:00
parent de703b182c
commit d7ac16a9ed
96 changed files with 1474 additions and 427 deletions
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6
libc/log/backtrace3.c
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@ -50,7 +50,6 @@ int PrintBacktraceUsingSymbols(int fd, const struct StackFrame *bp,
char buf[256], ibuf[21];
const struct Symbol *symbol;
const struct StackFrame *frame;
if (!st) return -1;
if (!bp) bp = __builtin_frame_address(0);
garbage = weaken(__garbage);
gi = garbage ? garbage->i : 0;
@ -66,8 +65,9 @@ int PrintBacktraceUsingSymbols(int fd, const struct StackFrame *bp,
*p++ = ' ';
p = mempcpy(p, ibuf, uint64toarray_fixed16(addr, ibuf, 48));
*p++ = ' ';
if (st->count && ((intptr_t)addr >= (intptr_t)&_base &&
(intptr_t)addr <= (intptr_t)&_end)) {
if (st && st->count &&
((intptr_t)addr >= (intptr_t)&_base &&
(intptr_t)addr <= (intptr_t)&_end)) {
symbol = &st->symbols[bisectcarleft((const int32_t(*)[2])st->symbols,
st->count, addr - st->addr_base - 1)];
p = stpcpy(p, &st->name_base[symbol->name_rva]);