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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/nexgen32e/rldecode.S
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@ -24,9 +24,10 @@
// @param di points to output buffer
// @param si points to uint8_t {len₁,byte₁}, ..., {0,0}
// @mode long,legacy,real
.ftrace1
rldecode:
.ftrace2
.leafprologue
.profilable
xor %ecx,%ecx
0: lodsb
xchg %al,%cl