From: Julian Seward <jseward@acm.org>
Date: Thu, 4 Aug 2005 23:52:21 +0000 (+0000)
Subject: ppc32-linux only: HACK: for now, mess with the auxv handed to the
X-Git-Tag: svn/VALGRIND_3_1_0~667
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b07d3b8200daffd0b340d16729e5a235b232dfdf;p=thirdparty%2Fvalgrind.git

ppc32-linux only: HACK: for now, mess with the auxv handed to the
client so as to not claim that the CPU supports Altivec.  This is a
partially-successful hack to try and dissuade glibc and its minions
from doing Altivec insns.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@4323
---

diff --git a/coregrind/m_main.c b/coregrind/m_main.c
index b417e9cd73..91a5ec633d 100644
--- a/coregrind/m_main.c
+++ b/coregrind/m_main.c
@@ -179,6 +179,12 @@ static int scan_auxv(void* init_sp)
                              (UInt)auxv->u.a_val, (UInt)auxv->a_type );
          }
          break;
+
+      case AT_HWCAP:
+         VG_(debugLog)(1, "main", "PPC32 hwcaps(1): 0x%x\n", (UInt)auxv->u.a_val);
+         auxv->u.a_val &= ~0x10000000; /* claim there is no Altivec support */
+         VG_(debugLog)(1, "main", "PPC32 hwcaps(2): 0x%x\n", (UInt)auxv->u.a_val);
+         break;
 #     endif
 
       case AT_PHDR: