cosmopolitan/libc/runtime/printgarbage.c
Justine Tunney 68c7c9c1e0
Clean up some code
- Use good ELF technique in cosmo_dlopen()
- Make strerror() conform more to other libc impls
- Introduce __clear_cache() and use it in cosmo_dlopen()
- Remove libc/fmt/fmt.h header (trying to kill off LIBC_FMT)
2023-11-16 17:31:07 -08:00

58 lines
3 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2021 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/kprintf.h"
#include "libc/log/log.h"
#include "libc/nexgen32e/gc.internal.h"
#include "libc/stdio/stdio.h"
#include "libc/thread/tls.h"
// clang-format off
/**
* Prints list of deferred operations on shadow stack.
*/
void PrintGarbage(void) {
size_t i;
char name[19];
const char *symbol;
struct Garbages *g;
kprintf("\n");
kprintf(" SHADOW STACK %P @ %p\n", __builtin_frame_address(0));
kprintf("garbage ent. parent frame original ret callback arg \n");
kprintf("------------ ------------ ------------------ ------------------ ------------------\n");
if ((g = __tls_enabled ? __get_tls()->tib_garbages:0) && g->i) {
for (i = g->n; i--;) {
symbol = GetSymbolByAddr(g->p[i].ret);
if (symbol) {
ksnprintf(name, sizeof(name), "%s", symbol);
} else {
ksnprintf(name, sizeof(name), "%#014lx", g->p[i].ret);
}
kprintf("%12lx %12lx %18s %18s %#18lx\n",
g->p + i,
g->p[i].frame,
name,
GetSymbolByAddr(g->p[i].fn),
g->p[i].arg);
}
} else {
kprintf("%12s %12s %18s %18s %18s\n","empty","-","-","-","-");
}
kprintf("\n");
}