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Code Issues Releases Wiki Activity

Docs: Update INSTALL for --enable_ifunc change.

This commit is contained in:
Jia Tan 2023-11-24 20:19:11 +08:00
parent ffb456593d
commit 20ecee40a0
1 changed files with 8 additions and 8 deletions
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16
INSTALL
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@ -383,14 +383,6 @@ XZ Utils Installation
required extensions (-msse4.1 -mpclmul) then runtime
detection isn't used and the generic code is omitted.
--disable-ifunc
Disable the use of __attribute__((__ifunc__())) for
function dispatching even if support is detected.
The ifunc attribute is incompatible with
-fsanitize=address so it may need to be disabled in
debug builds with extra instrumentation.
--enable-unaligned-access
Allow liblzma to use unaligned memory access for 16-bit,
32-bit, and 64-bit loads and stores. This should be
@ -522,6 +514,14 @@ XZ Utils Installation
calls any liblzma functions from more than
one thread, something bad may happen.
--enable-ifunc
Use __attribute__((__ifunc__())) in liblzma. This is
enabled by default on GNU/Linux and FreeBSD.
The ifunc attribute is incompatible with
-fsanitize=address. --disable-ifunc must be used
if any -fsanitize= option is specified in CFLAGS.
--enable-sandbox=METHOD
There is limited sandboxing support in the xz tool. If
built with sandbox support, it's used automatically when