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From 571d49008b0c44b4aabb66b2ac3ce690fd802466 Mon Sep 17 00:00:00 2001
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From: Stefan Liebler <stli@linux.vnet.ibm.com>
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Date: Thu, 8 Oct 2015 10:45:29 +0200
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Subject: [PATCH 06/30] S390: Add hwcaps value for vector facility.
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upstream-commit-id: 4e28fa80886c71e6aaf85016b82ce981c0f12e6d
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https://www.sourceware.org/ml/libc-alpha/2015-07/msg00075.html
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The HWCAP_S390_VX flag in hwcap field of auxiliary vector indicates
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if the vector facility is available and the kernel is aware of it.
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This can be tested with LD_SHOW_AUXV=1 <prog>.
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Currently it does not show te, because it was not incremented
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by commit "S/390: Add hwcap value for transactional execution.".
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Thus _DL_HWCAP_COUNT is incremented by two.
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ChangeLog:
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* sysdeps/s390/dl-procinfo.c (_dl_s390_platforms): Add vector flag.
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* sysdeps/s390/dl-procinfo.h: Add vector capability.
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* sysdeps/unix/sysv/linux/s390/bits/hwcap.h (HWCAP_S390_VX): Define.
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---
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sysdeps/s390/dl-procinfo.c | 4 ++--
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sysdeps/s390/dl-procinfo.h | 3 ++-
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sysdeps/unix/sysv/linux/s390/bits/hwcap.h | 1 +
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3 files changed, 5 insertions(+), 3 deletions(-)
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diff --git a/sysdeps/s390/dl-procinfo.c b/sysdeps/s390/dl-procinfo.c
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index 9590146..96d438a 100644
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--- a/sysdeps/s390/dl-procinfo.c
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+++ b/sysdeps/s390/dl-procinfo.c
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@@ -46,11 +46,11 @@
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#if !defined PROCINFO_DECL && defined SHARED
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._dl_s390_cap_flags
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#else
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-PROCINFO_CLASS const char _dl_s390_cap_flags[11][9]
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+PROCINFO_CLASS const char _dl_s390_cap_flags[12][9]
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#endif
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#ifndef PROCINFO_DECL
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= {
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- "esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp", "edat", "etf3eh", "highgprs", "te"
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+ "esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp", "edat", "etf3eh", "highgprs", "te", "vx"
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}
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#endif
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#if !defined SHARED || defined PROCINFO_DECL
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diff --git a/sysdeps/s390/dl-procinfo.h b/sysdeps/s390/dl-procinfo.h
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index 26de043..89766e0 100644
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--- a/sysdeps/s390/dl-procinfo.h
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+++ b/sysdeps/s390/dl-procinfo.h
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@@ -21,7 +21,7 @@
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#define _DL_PROCINFO_H 1
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#include <ldsodefs.h>
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-#define _DL_HWCAP_COUNT 10
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+#define _DL_HWCAP_COUNT 12
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#define _DL_PLATFORMS_COUNT 5
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@@ -50,6 +50,7 @@ enum
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HWCAP_S390_ETF3EH = 1 << 8,
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HWCAP_S390_HIGH_GPRS = 1 << 9,
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HWCAP_S390_TE = 1 << 10,
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+ HWCAP_S390_VX = 1 << 11,
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};
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#define HWCAP_IMPORTANT (HWCAP_S390_ZARCH | HWCAP_S390_LDISP \
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diff --git a/sysdeps/unix/sysv/linux/s390/bits/hwcap.h b/sysdeps/unix/sysv/linux/s390/bits/hwcap.h
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index 59d68b0..bd2ce3a 100644
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--- a/sysdeps/unix/sysv/linux/s390/bits/hwcap.h
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+++ b/sysdeps/unix/sysv/linux/s390/bits/hwcap.h
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@@ -35,3 +35,4 @@
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#define HWCAP_S390_ETF3EH 256
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#define HWCAP_S390_HIGH_GPRS 512
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#define HWCAP_S390_TE 1024
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+#define HWCAP_S390_VX 2048
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--
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2.3.0
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