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- Emulator can now test the αcτµαlly pδrταblε εxεcµταblε bootloader

- Whipped up a webserver named redbean. It services 150k requests per
  second on a single core. Bundling assets inside zip enables extremely
  fast serving for two reasons. The first is that zip central directory
  lookups go faster than stat() system calls. The second is that both
  zip and gzip content-encoding use DEFLATE, therefore, compressed
  responses can be served via the sendfile() system call which does an
  in-kernel copy directly from the zip executable structure. Also note
  that red bean zip executables can be deployed easily to all platforms,
  since these native executables work on Linux, Mac, BSD, and Windows.

- Address sanitizer now works very well
This commit is contained in:
Justine Tunney
2020-09-06 21:39:00 -07:00
parent 7327c345f9
commit 416fd86676
230 changed files with 9835 additions and 5682 deletions
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51
libc/log/backtrace3.c
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@@ -18,41 +18,29 @@
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/alg/bisectcarleft.h"
#include "libc/assert.h"
#include "libc/bits/weaken.h"
#include "libc/conv/itoa.h"
#include "libc/fmt/fmt.h"
#include "libc/log/backtrace.h"
#include "libc/macros.h"
#include "libc/nexgen32e/gc.h"
#include "libc/nexgen32e/stackframe.h"
#include "libc/runtime/missioncritical.h"
#include "libc/runtime/symbols.h"
#include "libc/stdio/stdio.h"
static char *FormatAddress(FILE *f, const struct SymbolTable *st, intptr_t addr,
char *out, unsigned size, bool symbolic) {
int64_t addend;
const char *name;
const struct Symbol *symbol;
if (st->count && ((intptr_t)addr >= (intptr_t)&_base &&
(intptr_t)addr <= (intptr_t)&_end && symbolic)) {
symbol = &st->symbols[bisectcarleft((const int32_t(*)[2])st->symbols,
st->count, addr - st->addr_base - 1)];
addend = addr - st->addr_base - symbol->addr_rva;
name = &st->name_base[symbol->name_rva];
snprintf(out, size, "%s%c%#x", name, addend >= 0 ? '+' : '-', ABS(addend));
} else {
snprintf(out, size, "%p", addr);
}
return out;
}
#include "libc/str/str.h"
int PrintBacktraceUsingSymbols(FILE *f, const struct StackFrame *bp,
struct SymbolTable *symbols) {
struct SymbolTable *st) {
size_t gi;
char buf[256];
intptr_t addr;
int64_t addend;
struct Garbages *garbage;
char *p, buf[256], ibuf[21];
const struct Symbol *symbol;
const struct StackFrame *frame;
if (!symbols) return -1;
if (!st) return -1;
garbage = weaken(g_garbage);
gi = garbage ? garbage->i : 0;
for (frame = bp; frame; frame = frame->next) {
@@ -62,8 +50,25 @@ int PrintBacktraceUsingSymbols(FILE *f, const struct StackFrame *bp,
--gi;
} while ((addr = garbage->p[gi].ret) == weakaddr("CollectGarbage"));
}
fprintf(f, "%p %p %s\n", frame, addr,
FormatAddress(f, symbols, addr, buf, sizeof(buf), true));
p = buf;
p = mempcpy(p, ibuf, uint64toarray_fixed16((intptr_t)frame, ibuf, 48));
*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)) {
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]);
addend = addr - st->addr_base - symbol->addr_rva;
*p++ = addend >= 0 ? '+' : '-';
if (addend) *p++ = '0', *p++ = 'x';
p = mempcpy(p, ibuf, uint64toarray_radix16(ABS(addend), ibuf));
} else {
p = stpcpy(p, "UNKNOWN");
}
*p++ = '\n';
__print(buf, p - buf);
}
return 0;
}