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Get hello.com working on metal again (#529)

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* Fix deterministic startup stack setup, especially for bare metal
* Implement __enable_tls() on bare metal
* Get __get_tls_privileged() working on bare metal
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tkchia 2022-08-14 07:14:02 +08:00 • committed by GitHub
parent ad775a75b8
commit 62ca1b0902
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3 changed files with 14 additions and 4 deletions
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libc/nexgen32e/gettls.h
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@ -27,7 +27,7 @@ static noasan inline char *__get_tls(void) {
*/
static noasan inline char *__get_tls_privileged(void) {
char *tib, *lin = (char *)0x30;
if (IsLinux() || IsFreebsd() || IsNetbsd() || IsOpenbsd()) {
if (IsLinux() || IsFreebsd() || IsNetbsd() || IsOpenbsd() || IsMetal()) {
asm("mov\t%%fs:(%1),%0" : "=a"(tib) : "r"(lin) : "memory");
} else {
asm("mov\t%%gs:(%1),%0" : "=a"(tib) : "r"(lin) : "memory");