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Do code cleanup use duff device linenoise i/o

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Justine Tunney 2022-04-22 18:55:28 -07:00
parent 6ff46ca373
commit 2f56ebfe78
79 changed files with 1393 additions and 1484 deletions
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91
libc/log/backtrace3.c
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@ -1,91 +0,0 @@
/*-*- 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 2020 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/alg/bisectcarleft.internal.h"
#include "libc/assert.h"
#include "libc/bits/weaken.h"
#include "libc/calls/calls.h"
#include "libc/fmt/fmt.h"
#include "libc/fmt/itoa.h"
#include "libc/intrin/kprintf.h"
#include "libc/log/backtrace.internal.h"
#include "libc/macros.internal.h"
#include "libc/nexgen32e/gc.internal.h"
#include "libc/nexgen32e/stackframe.h"
#include "libc/runtime/runtime.h"
#include "libc/runtime/symbols.internal.h"
#include "libc/str/str.h"
#define LIMIT 100
/**
* Prints stack frames with symbols.
*
* PrintBacktraceUsingSymbols(STDOUT_FILENO, NULL, GetSymbolTable());
*
* @param f is output stream
* @param bp is rbp which can be NULL to detect automatically
* @param st is open symbol table for current executable
* @return -1 w/ errno if error happened
*/
noinstrument noasan int PrintBacktraceUsingSymbols(int fd,
const struct StackFrame *bp,
struct SymbolTable *st) {
size_t gi;
intptr_t addr;
int i, symbol, addend;
struct Garbages *garbage;
const struct StackFrame *frame;
if (!bp) bp = __builtin_frame_address(0);
garbage = weaken(__garbage);
gi = garbage ? garbage->i : 0;
for (i = 0, frame = bp; frame; frame = frame->next) {
if (!IsValidStackFramePointer(frame)) {
kprintf("%p corrupt frame pointer%n", frame);
break;
}
if (++i == LIMIT) {
kprintf("<truncated backtrace>%n");
break;
}
addr = frame->addr;
if (addr == weakaddr("__gc")) {
do {
--gi;
} while ((addr = garbage->p[gi].ret) == weakaddr("__gc"));
}
/*
* we subtract one to handle the case of noreturn functions with a
* call instruction at the end, since %rip in such cases will point
* to the start of the next function. generally %rip always points
* to the byte after the instruction. one exception is in case like
* __restore_rt where the kernel creates a stack frame that points
* to the beginning of the function.
*/
if ((symbol = __get_symbol(st, addr - 1)) != -1 ||
(symbol = __get_symbol(st, addr - 0)) != -1) {
addend = addr - st->addr_base;
addend -= st->symbols[symbol].x;
} else {
addend = 0;
}
kprintf("%012lx %012lx %s%+d\r%n", frame, addr,
__get_symbol_name(st, symbol), addend);
}
return 0;
}