File 0002-S390-Use-hwcap-instead-of-dl_hwcap-in-ifun... of Package glibc

Overview Repositories Revisions Requests Users Attributes Meta

File 0002-S390-Use-hwcap-instead-of-dl_hwcap-in-ifunc-resolver.patch of Package glibc (Revision cd0f5ff0bf9c725778fa7b14f9d5c1f3)

Currently displaying revision cd0f5ff0bf9c725778fa7b14f9d5c1f3 , Show latest

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)		\

Places

File 0002-S390-Use-hwcap-instead-of-dl_hwcap-in-ifunc-resolver.patch of Package glibc (Revision cd0f5ff0bf9c725778fa7b14f9d5c1f3)

Places