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Make minor improvements

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This commit is contained in:
Justine Tunney 2020-12-23 23:42:56 -08:00
parent 04caf6f9ad
commit 95b142e4e5
95 changed files with 3818 additions and 2760 deletions
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20
tool/decode/elf.c
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@ -32,6 +32,7 @@
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/prot.h"
#include "libc/x/x.h"
#include "tool/decode/lib/asmcodegen.h"
#include "tool/decode/lib/elfidnames.h"
#include "tool/decode/lib/flagger.h"
@ -249,10 +250,10 @@ static char *getelfsymbolname(const Elf64_Ehdr *elf, size_t mapsize,
static void printelfrelocations(void) {
int sym;
size_t i, j;
size_t i, j, count;
const Elf64_Sym *syms;
const Elf64_Rela *rela;
const Elf64_Shdr *shdr, *boop;
const Elf64_Shdr *shdr, *symtab;
char *strtab, *shstrtab, *symbolname;
strtab = GetElfStringTable(elf, st->st_size);
shstrtab = GetElfSectionNameStringTable(elf, st->st_size);
@ -266,11 +267,16 @@ static void printelfrelocations(void) {
min((uintptr_t)elf + st->st_size,
(uintptr_t)elf + shdr->sh_offset + shdr->sh_size));
++rela, ++j) {
boop = GetElfSectionHeaderAddress(elf, st->st_size, shdr->sh_link);
syms = GetElfSectionAddress(elf, st->st_size, boop);
symtab = GetElfSectionHeaderAddress(elf, st->st_size, shdr->sh_link);
count = symtab->sh_size / symtab->sh_entsize;
syms = GetElfSectionAddress(elf, st->st_size, symtab);
sym = ELF64_R_SYM(rela->r_info);
symbolname =
getelfsymbolname(elf, st->st_size, strtab, shstrtab, &syms[sym]);
if (0 <= sym && sym < count) {
symbolname =
getelfsymbolname(elf, st->st_size, strtab, shstrtab, syms + sym);
} else {
symbolname = xasprintf("bad-sym-%d", sym);
}
printf("/\t%s+%#lx → %s%c%#lx\n",
GetElfString(
elf, st->st_size, shstrtab,
@ -297,7 +303,7 @@ static void printelfrelocations(void) {
int main(int argc, char *argv[]) {
showcrashreports();
if (argc != 2) {
fprintf(stderr, "usage: %`s FILE: %s\n", argv[0]);
fprintf(stderr, "usage: %s FILE\n", argv[0]);
return 1;
}
path = argv[1];