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* [glibc] LoongArch: Fix tst-gnu2-tls2 compiler error
@ 2024-05-21 4:09 Yinyu Cai
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From: Yinyu Cai @ 2024-05-21 4:09 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=16d47c1594c5bcd334d0b8dbf147cda917f19bc4
commit 16d47c1594c5bcd334d0b8dbf147cda917f19bc4
Author: mengqinggang <mengqinggang@loongson.cn>
Date: Mon May 20 17:05:12 2024 +0800
LoongArch: Fix tst-gnu2-tls2 compiler error
Add -mno-lsx to tst-gnu2-tlsmod*.c if gcc support -mno-lsx.
Add escape character '\' in vector support test function.
Diff:
---
sysdeps/loongarch/Makefile | 2 ++
sysdeps/loongarch/configure | 3 +++
sysdeps/loongarch/configure.ac | 5 +++--
3 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/sysdeps/loongarch/Makefile b/sysdeps/loongarch/Makefile
index a4ee915eff..b00c090faa 100644
--- a/sysdeps/loongarch/Makefile
+++ b/sysdeps/loongarch/Makefile
@@ -35,10 +35,12 @@ sysdep-dl-routines += \
# Disable the compiler from using LSX for TLS descriptor tests, or storing into
# 16B TLS variable may clobber FP/vector registers and prevent us from checking
# their contents.
+ifeq (yes,$(loongarch-vec-com))
CFLAGS-tst-gnu2-tls2mod0.c += -mno-lsx
CFLAGS-tst-gnu2-tls2mod1.c += -mno-lsx
CFLAGS-tst-gnu2-tls2mod2.c += -mno-lsx
endif
+endif
# LoongArch's assembler also needs to know about PIC as it changes the
# definition of some assembler macros.
diff --git a/sysdeps/loongarch/configure b/sysdeps/loongarch/configure
index 731f79438f..afcef6cd22 100644
--- a/sysdeps/loongarch/configure
+++ b/sysdeps/loongarch/configure
@@ -143,3 +143,6 @@ then
printf "%s\n" "#define HAVE_LOONGARCH_VEC_COM 1" >>confdefs.h
fi
+config_vars="$config_vars
+loongarch-vec-com = $libc_cv_loongarch_vec_com"
+
diff --git a/sysdeps/loongarch/configure.ac b/sysdeps/loongarch/configure.ac
index 24fee55dcc..c56a203574 100644
--- a/sysdeps/loongarch/configure.ac
+++ b/sysdeps/loongarch/configure.ac
@@ -71,8 +71,8 @@ AC_CACHE_CHECK([for vector support in compiler],
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
void foo (void)
{
- asm volatile ("vldi $vr0, 1" ::: "$vr0");
- asm volatile ("xvldi $xr0, 1" ::: "$xr0");
+ asm volatile ("vldi \$vr0, 1" ::: "\$vr0");
+ asm volatile ("xvldi \$xr0, 1" ::: "\$xr0");
}
]])],
[libc_cv_loongarch_vec_com=yes],
@@ -81,3 +81,4 @@ if test "$libc_cv_loongarch_vec_com" = yes ;
then
AC_DEFINE(HAVE_LOONGARCH_VEC_COM)
fi
+LIBC_CONFIG_VAR([loongarch-vec-com], [$libc_cv_loongarch_vec_com])
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2024-05-21 4:09 [glibc] LoongArch: Fix tst-gnu2-tls2 compiler error Yinyu Cai
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