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Remove _Hide keyword

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It never did anything and isn't worthwhile as documentation.
This commit is contained in:
Justine Tunney 2023-07-24 08:31:54 -07:00
parent 4fb6cbc1fe
commit e0c2b91b3e
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GPG key ID: BE714B4575D6E328
131 changed files with 716 additions and 917 deletions
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52
tool/build/pledge.c
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@ -30,7 +30,9 @@
#include "libc/calls/syscall_support-sysv.internal.h"
#include "libc/dce.h"
#include "libc/elf/def.h"
#include "libc/elf/elf.h"
#include "libc/elf/struct/ehdr.h"
#include "libc/elf/struct/phdr.h"
#include "libc/errno.h"
#include "libc/fmt/conv.h"
#include "libc/intrin/bits.h"
@ -530,6 +532,54 @@ int Extract(const char *from, const char *to, int mode) {
return close(fdout) | close(fdin);
}
/**
* Returns true if ELF executable uses dynamic loading magic.
*/
static bool IsDynamicExecutable(const char *prog) {
bool res;
Elf64_Ehdr *e;
Elf64_Phdr *p;
struct stat st;
int i, fd, err;
fd = -1;
err = errno;
e = MAP_FAILED;
if ((fd = open(prog, O_RDONLY)) == -1) {
res = false;
goto Finish;
}
if (fstat(fd, &st) == -1 || st.st_size < 64) {
res = false;
goto Finish;
}
if ((e = mmap(0, st.st_size, PROT_READ, MAP_SHARED, fd, 0)) == MAP_FAILED) {
res = false;
goto Finish;
}
if (READ32LE(e->e_ident) != READ32LE(ELFMAG)) {
res = false;
goto Finish;
}
if (e->e_type == ET_DYN) {
res = true;
goto Finish;
}
for (i = 0; i < e->e_phnum; ++i) {
p = GetElfProgramHeaderAddress(e, st.st_size, i);
if (p->p_type == PT_INTERP || p->p_type == PT_DYNAMIC) {
res = true;
goto Finish;
}
}
res = false;
goto Finish;
Finish:
if (e != MAP_FAILED) munmap(e, st.st_size);
if (fd != -1) close(fd);
errno = err;
return res;
}
int main(int argc, char *argv[]) {
const char *s;
bool hasfunbits;
@ -659,7 +709,7 @@ int main(int argc, char *argv[]) {
}
// figure out where we want the dso
if (_IsDynamicExecutable(prog)) {
if (IsDynamicExecutable(prog)) {
isdynamic = true;
if ((s = getenv("TMPDIR")) || //
(s = getenv("HOME")) || //