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import glibc-2.17-292.el7.src.rpm

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Signed-off-by: zhangbinchen <zhangbinchen@openanolis.org>
This commit is contained in:
zhangbinchen 2021-08-21 12:40:25 +08:00
commit ff0128648f
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@ -0,0 +1,121 @@
From 63be4dc8f5be08f40df927377bdf0bae5239ce53 Mon Sep 17 00:00:00 2001
From: Stefan Liebler <stli@linux.vnet.ibm.com>
Date: Thu, 27 Jul 2017 10:53:58 +0200
Subject: [PATCH 01/10] S390: Configure checks
HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT.
This configure check was added upstream with commit
e9b424881a4f85284e56d8b561c54ff57a7c1c9b
"S390: Do not set FE_INEXACT with feraiseexcept (FE_OWERFLOW|FE_UNDERFLOW)."
HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT will be defined if gcc/assembler
can handle zarch z196 instructions by default.
Thus it is defined on s390x-glibc on RHEL 7, but not for s390-glibc.
ChangeLog:
* config.h.in (HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT):
New undefine.
* sysdeps/s390/configure.ac: Add test for z196 zarch support.
* sysdeps/s390/configure: Regenerated.
---
config.h.in | 3 +++
sysdeps/s390/configure | 36 ++++++++++++++++++++++++++++++++++++
sysdeps/s390/configure.in | 26 ++++++++++++++++++++++++++
3 files changed, 65 insertions(+)
diff --git a/config.h.in b/config.h.in
index 66ac85a..07bc713 100644
--- a/config.h.in
+++ b/config.h.in
@@ -110,6 +110,9 @@
/* Define if assembler supports Intel MPX. */
#undef HAVE_MPX_SUPPORT
+/* Define if assembler supports z196 zarch instructions as default on S390. */
+#undef HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT
+
/* Define if assembler supports vector instructions on S390. */
#undef HAVE_S390_VX_ASM_SUPPORT
diff --git a/sysdeps/s390/configure b/sysdeps/s390/configure
index eb49a4c..bb670f3 100644
--- a/sysdeps/s390/configure
+++ b/sysdeps/s390/configure
@@ -75,3 +75,39 @@ then
$as_echo "#define HAVE_S390_VX_GCC_SUPPORT 1" >>confdefs.h
fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 z196 zarch instruction support as default" >&5
+$as_echo_n "checking for S390 z196 zarch instruction support as default... " >&6; }
+if ${libc_cv_asm_s390_min_z196_zarch+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat > conftest.c <<\EOF
+float testinsn (double e)
+{
+ float d;
+ __asm__ ("ledbra %0,5,%1,4" : "=f" (d) : "f" (e) );
+ return d;
+}
+EOF
+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
+ -o conftest.o &> /dev/null'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; } ;
+then
+ libc_cv_asm_s390_min_z196_zarch=yes
+else
+ libc_cv_asm_s390_min_z196_zarch=no
+fi
+rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z196_zarch" >&5
+$as_echo "$libc_cv_asm_s390_min_z196_zarch" >&6; }
+
+if test "$libc_cv_asm_s390_min_z196_zarch" = yes ;
+then
+ $as_echo "#define HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT 1" >>confdefs.h
+
+fi
diff --git a/sysdeps/s390/configure.in b/sysdeps/s390/configure.in
index a3b1f25..bad92bd 100644
--- a/sysdeps/s390/configure.in
+++ b/sysdeps/s390/configure.in
@@ -53,3 +53,29 @@ if test "$libc_cv_gcc_s390_vx" = yes ;
then
AC_DEFINE(HAVE_S390_VX_GCC_SUPPORT)
fi
+
+AC_CACHE_CHECK(for S390 z196 zarch instruction support as default,
+ libc_cv_asm_s390_min_z196_zarch, [dnl
+cat > conftest.c <<\EOF
+float testinsn (double e)
+{
+ float d;
+ __asm__ ("ledbra %0,5,%1,4" : "=f" (d) : "f" (e) );
+ return d;
+}
+EOF
+dnl
+dnl test, if assembler supports S390 z196 zarch instructions as default
+if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
+ -o conftest.o &> /dev/null]) ;
+then
+ libc_cv_asm_s390_min_z196_zarch=yes
+else
+ libc_cv_asm_s390_min_z196_zarch=no
+fi
+rm -f conftest* ])
+
+if test "$libc_cv_asm_s390_min_z196_zarch" = yes ;
+then
+ AC_DEFINE(HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT)
+fi
--
1.8.3.1