Get --ftrace working on aarch64

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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934 changed files with 2259 additions and 1268 deletions

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@ -1,10 +1,11 @@
#include "libc/macros.internal.h"
.text.unlikely
.ftrace1
eoverflow:
.ftrace2
#ifdef __x86_64__
.leafprologue
.profilable
mov EOVERFLOW(%rip),%ecx
jmp __errfun
#elif defined(__aarch64__)