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Make some quick fixes and cleanup

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This commit is contained in:
Justine Tunney 2022-06-26 02:58:36 -07:00
parent fa5c2a24b5
commit 61257d48d4
63 changed files with 275 additions and 257 deletions
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39
tool/decode/elf.c
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@ -16,9 +16,11 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/bits.h"
#include "libc/bits/safemacros.internal.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/stat.h"
#include "libc/elf/def.h"
#include "libc/elf/elf.h"
#include "libc/elf/struct/rela.h"
#include "libc/elf/struct/shdr.h"
@ -177,6 +179,42 @@ static void printelfsectionheaders(void) {
}
}
static void printelfgroups(void) {
for (int i = 0; i < elf->e_shnum; ++i) {
Elf64_Shdr *shdr = GetElfSectionHeaderAddress(elf, st->st_size, i);
if (shdr->sh_type == SHT_GROUP) {
const Elf64_Shdr *symhdr =
GetElfSectionHeaderAddress(elf, st->st_size, shdr->sh_link);
const Elf64_Shdr *strhdr =
GetElfSectionHeaderAddress(elf, st->st_size, symhdr->sh_link);
Elf64_Sym *syms = GetElfSectionAddress(elf, st->st_size, symhdr);
char *strs = GetElfSectionAddress(elf, st->st_size, strhdr);
printf("\n");
printf("//\t%s group\n",
GetElfString(elf, st->st_size, strs, syms[shdr->sh_info].st_name));
printf("\t.org\t%#x\n", shdr->sh_offset);
bool first = true;
for (char *p = (char *)elf + shdr->sh_offset;
p < (char *)elf + shdr->sh_offset + shdr->sh_size; p += 4) {
if (first) {
first = false;
if (READ32LE(p) == GRP_COMDAT) {
printf("\t.long\tGRP_COMDAT\n");
continue;
}
}
const Elf64_Shdr *section =
GetElfSectionHeaderAddress(elf, st->st_size, READ32LE(p));
printf("\t.long\t%#x\t\t\t# %s\n", READ32LE(p),
GetElfString(elf, st->st_size,
GetElfSectionNameStringTable(elf, st->st_size),
section->sh_name));
}
shdr->sh_offset;
}
}
}
static void printelfsymbolinfo(Elf64_Sym *sym) {
int bind = (sym->st_info >> 4) & 0xf;
const char *bindname = findnamebyid(kElfSymbolBindNames, bind);
@ -346,6 +384,7 @@ int main(int argc, char *argv[]) {
printelfehdr();
printelfsegmentheaders();
printelfsectionheaders();
printelfgroups();
printelfrelocations();
printelfsymboltable();
printelfdynsymboltable();