Ticket #12699: 0001-use-pthread-to-fix-the-missing-atomic-issue.patch

File 0001-use-pthread-to-fix-the-missing-atomic-issue.patch, 1.1 KB (added by Yixun Lan, 3 years ago)

0001-use-pthread-to-fix-the-missing-atomic-issue.patch

  • configure.ac 

    From 2caf855f4fc6a9d250ed4008d1b7004584df64fb Mon Sep 17 00:00:00 2001
From: Yixun Lan <dlan@gentoo.org>
Date: Wed, 20 Apr 2022 07:51:35 +0800
Subject: [PATCH] use -pthread to fix the missing atomic issue

Due to no 1, 2byte atomic instructions in RISC-V hardware,
the software layer have to emulate relavant function in atomic library

And in RISC-V platform, the flag "-pthread" will exapnd
link option with "--push-state --as-needed -latomic --pop-state"
So, this will effectively fix the atomic issue.

https://github.com/riscv-collab/riscv-gcc/issues/12 use Option 4
https://stackoverflow.com/questions/23250863/difference-between-pthread-and-lpthread-while-compiling

Signed-off-by: Yixun Lan <dlan@gentoo.org>
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 14bb5d0..da45769 100644
    a b AC_CHECK_DECLS([pthread_condattr_setclock], [], [], [[#include <pthread.h>]])  
    120120if test "$windows" = "1"; then
    121121  libdeps="-lws2_32"
    122122else
    123   libdeps=-lpthread
     123  libdeps=-pthread
    124124  CHECK_ICONV([libdeps="$libdeps -liconv"])
    125125
    126126  CHECK_RANDOM