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Get --ftrace working on aarch64

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This change implements a new approach to function call logging, that's
based on the GCC flag: -fpatchable-function-entry. Read the commentary
in build/config.mk to learn how it works.
This commit is contained in:
Justine Tunney 2023-06-05 23:35:31 -07:00
parent 5b908bc756
commit eb40cb371d
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GPG key ID: BE714B4575D6E328
934 changed files with 2259 additions and 1268 deletions
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2
libc/thread/tls2.h
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@ -12,7 +12,7 @@ COSMOPOLITAN_C_START_
* This should be favored over __get_tls() for .privileged code that
* can't be self-modified by __enable_tls().
*/
static noasan inline struct CosmoTib *__get_tls_privileged(void) {
privileged static inline noasan struct CosmoTib *__get_tls_privileged(void) {
char *tib, *lin = (char *)0x30;
if (IsLinux() || IsFreebsd() || IsNetbsd() || IsOpenbsd() || IsMetal()) {
asm("mov\t%%fs:(%1),%0" : "=a"(tib) : "r"(lin) : "memory");