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commit 547f44124e1a38b8c5c635f673d88054ce6ff0d3
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Author: Asim YarKhan <yarkhan@icl.utk.edu>
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Date: Thu Oct 16 12:19:34 2014 -0400
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byte_profile.c: PPC64 add support for PPC64 Little Endian to byte_profile.c
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Thanks to Carl Love for this patch and the following description:
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The POWER 8 platform is Little Endian. It uses ELF
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version 2 which does not use function descriptors. This
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patch adds the needed #ifdef support to correctly compile
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the test case for Big Endian or Little Endian.
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This patch is untested by the PAPI developers (hardware not easily accessible).
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diff --git a/src/ctests/byte_profile.c b/src/ctests/byte_profile.c
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index 0f33c0d..f693e9f 100644
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--- a/src/ctests/byte_profile.c
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+++ b/src/ctests/byte_profile.c
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@@ -213,9 +213,14 @@ main( int argc, char **argv )
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/* Itanium and PowerPC64 processors return function descriptors instead
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* of function addresses. You must dereference the descriptor to get the address.
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*/
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-#if defined(ITANIUM1) || defined(ITANIUM2) || defined(__powerpc64__)
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+#if defined(ITANIUM1) || defined(ITANIUM2) \
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+ || (defined(__powerpc64__) && (_CALL_ELF != 2))
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start = ( caddr_t ) ( ( ( struct fdesc * ) start )->ip );
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end = ( caddr_t ) ( ( ( struct fdesc * ) end )->ip );
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+ /* PPC64 Big Endian is ELF version 1 which uses function descriptors.
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+ * PPC64 Little Endian is ELF version 2 which does not use
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+ * function descriptors
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+ */
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#endif
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/* call dummy so it doesn't get optimized away */
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commit 14f70ebc77deaad4a3fc3f808613772ef1165137
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Author: Asim YarKhan <yarkhan@icl.utk.edu>
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Date: Wed Oct 15 14:48:05 2014 -0400
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PPC64 add support for PPC64 Little Endian to sprofile.c
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Thanks to Carl Love for this patch and the following description:
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The POWER 8 platform is Little Endian. It uses ELF
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version 2 which does not use function descriptors. This
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patch adds the needed #ifdef support to correctly compile
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the test case for Big Endian or Little Endian.
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diff --git a/src/ctests/sprofile.c b/src/ctests/sprofile.c
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index e7ee47a..4bd7cc7 100644
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--- a/src/ctests/sprofile.c
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+++ b/src/ctests/sprofile.c
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@@ -1,4 +1,4 @@
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-/*
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+/*
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* File: sprofile.c
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* Author: Philip Mucci
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* mucci@cs.utk.edu
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@@ -10,10 +10,15 @@
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/* These architectures use Function Descriptors as Function Pointers */
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-#if (defined(linux) && defined(__ia64__)) || (defined(_AIX)) ||(defined(__powerpc64__))
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+#if (defined(linux) && defined(__ia64__)) || (defined(_AIX)) \
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+ || ((defined(__powerpc64__) && (_CALL_ELF != 2)))
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+/* PPC64 Big Endian is ELF version 1 which uses function descriptors */
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#define DO_READS (unsigned long)(*(void **)do_reads)
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#define DO_FLOPS (unsigned long)(*(void **)do_flops)
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#else
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+/* PPC64 Little Endian is ELF version 2 which does not use
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+ * function descriptors
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+ */
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#define DO_READS (unsigned long)(do_reads)
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#define DO_FLOPS (unsigned long)(do_flops)
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#endif
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