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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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3
libc/intrin/sched_yield.S
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@ -19,13 +19,14 @@
#include "libc/dce.h"
#include "libc/sysv/consts/nr.h"
#include "libc/macros.internal.h"
.privileged
// Relinquishes scheduled quantum.
//
// @return 0 on success, or -1 w/ errno
// @norestart
.ftrace1
sched_yield:
.ftrace2
#ifdef __x86_64__
push %rbp
mov %rsp,%rbp