File 0002-S390-Use-hwcap-instead-of-dl_hwcap-in-ifunc-resolver.patch of Package glibc.13450
From 504d5b54b1c4c71965eae307fdac0eb313a3ce28 Mon Sep 17 00:00:00 2001
From: Stefan Liebler <stli@linux.ibm.com>
Date: Tue, 18 Dec 2018 13:57:03 +0100
Subject: [PATCH 02/18] S390: Use hwcap instead of dl_hwcap in ifunc-resolvers.
The renaming of hwcap arguments in ifunc-resolvers is needed
in order to prepare for further commits which refactors
ifunc handling for memset, memcmp, and memcpy. Now you are able
to use s390_libc_ifunc_init which stores the stfle bits
within the expression for an ifunc-resolver generated by
s390_libc_ifunc_expr.
ChangeLog:
* sysdeps/s390/multiarch/ifunc-resolve.h
(s390_libc_ifunc_init, s390_libc_ifunc,
s390_vx_libc_ifunc2_redirected): Use hwcap instead of dl_hwcap.
(cherry picked from commit e8023f2685c9f97e72bbe9d2a9c968e0d8438371)
---
sysdeps/s390/multiarch/ifunc-resolve.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
Index: glibc-2.26/sysdeps/s390/multiarch/ifunc-resolve.h
===================================================================
--- glibc-2.26.orig/sysdeps/s390/multiarch/ifunc-resolve.h
+++ glibc-2.26/sysdeps/s390/multiarch/ifunc-resolve.h
@@ -42,9 +42,9 @@
: : "cc");
#define s390_libc_ifunc_init() \
unsigned long long stfle_bits = 0ULL; \
- if (__glibc_likely((dl_hwcap & HWCAP_S390_STFLE) \
- && (dl_hwcap & HWCAP_S390_ZARCH) \
- && (dl_hwcap & HWCAP_S390_HIGH_GPRS))) \
+ if (__glibc_likely ((hwcap & HWCAP_S390_STFLE) \
+ && (hwcap & HWCAP_S390_ZARCH) \
+ && (hwcap & HWCAP_S390_HIGH_GPRS))) \
{ \
S390_STORE_STFLE (stfle_bits); \
}
@@ -61,7 +61,7 @@
: __glibc_likely (S390_IS_Z10 (stfle_bits)) \
? RESOLVERFUNC##_z10 \
: RESOLVERFUNC##_default, \
- unsigned long int dl_hwcap, s390_libc_ifunc_init);
+ unsigned long int hwcap, s390_libc_ifunc_init);
#define s390_vx_libc_ifunc(FUNC) \
s390_vx_libc_ifunc2_redirected(FUNC, FUNC, FUNC)
@@ -79,10 +79,10 @@
extern __typeof (TYPE_FUNC) RESOLVERFUNC##_vx attribute_hidden; \
extern __typeof (TYPE_FUNC) RESOLVERFUNC##_c attribute_hidden; \
__ifunc (TYPE_FUNC, FUNC, \
- (dl_hwcap & HWCAP_S390_VX) \
+ (hwcap & HWCAP_S390_VX) \
? RESOLVERFUNC##_vx \
: RESOLVERFUNC##_c, \
- unsigned long int dl_hwcap, s390_vx_libc_ifunc_init);
+ unsigned long int hwcap, s390_vx_libc_ifunc_init);
#define s390_libc_ifunc_expr_init()
#define s390_libc_ifunc_expr(TYPE_FUNC, FUNC, EXPR) \
