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Get Cosmopolitan into releasable state

Browse source 
A new rollup tool now exists for flattening out the headers in a way
that works better for our purposes than cpp. A lot of the API clutter
has been removed. APIs that aren't a sure thing in terms of general
recommendation are now marked internal.

There's now a smoke test for the amalgamation archive and gigantic
header file. So we can now guarantee you can use this project on the
easiest difficulty setting without the gigantic repository.

A website is being created, which is currently a work in progress:
https://justine.storage.googleapis.com/cosmopolitan/index.html
This commit is contained in:
Justine Tunney 2020-11-25 08:19:00 -08:00
parent dba7552c1e
commit ea0b5d9d1c
775 changed files with 6864 additions and 3963 deletions
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34
tool/decode/elf.c
View file

@ -17,7 +17,7 @@
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/safemacros.h"
#include "libc/bits/safemacros.internal.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/stat.h"
#include "libc/conv/conv.h"
@ -99,8 +99,8 @@ static void printelfehdr(void) {
}
static void printelfsegmentheader(int i) {
Elf64_Phdr *phdr = getelfsegmentheaderaddress(elf, st->st_size, i);
printf("/\tElf64_Phdr *phdr = getelfsegmentheaderaddress(elf, st->st_size, "
Elf64_Phdr *phdr = GetElfSegmentHeaderAddress(elf, st->st_size, i);
printf("/\tElf64_Phdr *phdr = GetElfSegmentHeaderAddress(elf, st->st_size, "
"%d)\n",
i);
printf(".Lph%d:", i);
@ -127,8 +127,8 @@ static void printelfsegmentheaders(void) {
static void printelfsectionheader(int i, char *shstrtab) {
Elf64_Shdr *shdr;
shdr = getelfsectionheaderaddress(elf, st->st_size, i);
printf("/\tElf64_Shdr *shdr = getelfsectionheaderaddress(elf, st->st_size, "
shdr = GetElfSectionHeaderAddress(elf, st->st_size, i);
printf("/\tElf64_Shdr *shdr = GetElfSectionHeaderAddress(elf, st->st_size, "
"%d)\n",
i);
printf(".Lsh%d:", i);
@ -154,7 +154,7 @@ static void printelfsectionheader(int i, char *shstrtab) {
static void printelfsectionheaders(void) {
Elf64_Half i;
char *shstrtab = getelfsectionnamestringtable(elf, st->st_size);
char *shstrtab = GetElfSectionNameStringTable(elf, st->st_size);
if (shstrtab) {
printf("\n");
printf("\t.org\t%#x\n", elf->e_shoff);
@ -163,10 +163,10 @@ static void printelfsectionheaders(void) {
}
printf("\n/\t%s\n", "elf->e_shstrndx");
printf("\t.org\t%#x\n",
getelfsectionheaderaddress(elf, st->st_size, elf->e_shstrndx)
GetElfSectionHeaderAddress(elf, st->st_size, elf->e_shstrndx)
->sh_offset);
for (i = 0; i < elf->e_shnum; ++i) {
Elf64_Shdr *shdr = getelfsectionheaderaddress(elf, st->st_size, i);
Elf64_Shdr *shdr = GetElfSectionHeaderAddress(elf, st->st_size, i);
const char *str = GetElfString(elf, st->st_size, shstrtab, shdr->sh_name);
show(".asciz", format(b1, "%`'s", str), NULL);
}
@ -207,7 +207,7 @@ static void printelfsymbol(Elf64_Sym *sym, char *strtab, char *shstrtab) {
sym->st_shndx < 0xff00
? format(b1, "%`'s",
GetElfString(elf, st->st_size, shstrtab,
getelfsectionheaderaddress(
GetElfSectionHeaderAddress(
elf, st->st_size, sym->st_shndx)
->sh_name))
: findnamebyid(kElfSpecialSectionNames, sym->st_shndx)));
@ -219,7 +219,7 @@ static void printelfsymboltable(void) {
size_t i, symcount = 0;
Elf64_Sym *symtab = GetElfSymbolTable(elf, st->st_size, &symcount);
char *strtab = GetElfStringTable(elf, st->st_size);
char *shstrtab = getelfsectionnamestringtable(elf, st->st_size);
char *shstrtab = GetElfSectionNameStringTable(elf, st->st_size);
if (symtab && strtab) {
printf("\n\n");
printf("\t.org\t%#x\n", (intptr_t)symtab - (intptr_t)elf);
@ -238,7 +238,7 @@ static char *getelfsymbolname(const Elf64_Ehdr *elf, size_t mapsize,
if (elf && sym &&
((shstrtab && !sym->st_name &&
ELF64_ST_TYPE(sym->st_info) == STT_SECTION &&
(shdr = getelfsectionheaderaddress(elf, mapsize, sym->st_shndx)) &&
(shdr = GetElfSectionHeaderAddress(elf, mapsize, sym->st_shndx)) &&
(res = GetElfString(elf, mapsize, shstrtab, shdr->sh_name))) ||
(strtab && (res = GetElfString(elf, mapsize, strtab, sym->st_name))))) {
return res;
@ -255,26 +255,26 @@ static void printelfrelocations(void) {
const Elf64_Shdr *shdr, *boop;
char *strtab, *shstrtab, *symbolname;
strtab = GetElfStringTable(elf, st->st_size);
shstrtab = getelfsectionnamestringtable(elf, st->st_size);
shstrtab = GetElfSectionNameStringTable(elf, st->st_size);
for (i = 0; i < elf->e_shnum; ++i) {
if ((shdr = getelfsectionheaderaddress(elf, st->st_size, i)) &&
if ((shdr = GetElfSectionHeaderAddress(elf, st->st_size, i)) &&
shdr->sh_type == SHT_RELA &&
(rela = getelfsectionaddress(elf, st->st_size, shdr))) {
(rela = GetElfSectionAddress(elf, st->st_size, shdr))) {
printf("\n/\t%s\n", GetElfSectionName(elf, st->st_size, shdr));
printf("\t.org\t%#x\n", (intptr_t)rela - (intptr_t)elf);
for (j = 0; ((uintptr_t)rela + sizeof(Elf64_Rela) <=
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);
boop = GetElfSectionHeaderAddress(elf, st->st_size, shdr->sh_link);
syms = GetElfSectionAddress(elf, st->st_size, boop);
sym = ELF64_R_SYM(rela->r_info);
symbolname =
getelfsymbolname(elf, st->st_size, strtab, shstrtab, &syms[sym]);
printf("/\t%s+%#lx → %s%c%#lx\n",
GetElfString(
elf, st->st_size, shstrtab,
getelfsectionheaderaddress(elf, st->st_size, shdr->sh_info)
GetElfSectionHeaderAddress(elf, st->st_size, shdr->sh_info)
->sh_name),
rela->r_offset, symbolname, rela->r_addend >= 0 ? '+' : '-',
abs(rela->r_addend));