The following instructions were introduced in the Power ISA 2.05
(i.e., POWER6) - lfdp - stfdp - lfdpx - stfdpx These instructions were promptly
deprecated (phased out) in ISA 2.06 (i.e., POWER7). Recent updates in binutils
no longer supports these instructions unless the assembler is invoked with
'-mpower6'. When 'make check' is run on valgrind when using such a newer
binutils and running on a ppc64 system newer than POWER6, you get the
following build error:
y
pc64_linux=1 -DVGPV_ppc64_linux_vanilla=1 -DVGA_SEC_ppc32=1 -DVGP_SEC_ppc64_linux=1 -Winline -Wall -Wshadow -g -Winline -Wall -Wshadow -g -I../../../include -m64 -Wno-long-long -Wwrite-strings -fno-stack-protector -Wno-write-strings -MT power_ISA2_05-power_ISA2_05.o -MD -MP -MF .deps/power_ISA2_05-power_ISA2_05.Tpo -c -o power_ISA2_05-power_ISA2_05.o `test -f 'power_ISA2_05.c' || echo './'`power_ISA2_05.c
/tmp/cciGIkGG.s:Assembler messages:
/tmp/cciGIkGG.s:387: Error: operand out of domain (31 is not a multiple of 4)
/tmp/cciGIkGG.s:387: Error: syntax error; found `,', expected `('
/tmp/cciGIkGG.s:387: Error: junk at end of line: `,9'
/tmp/cciGIkGG.s:478: Error: operand out of domain (31 is not a multiple of 4)
/tmp/cciGIkGG.s:478: Error: syntax error; found `,', expected `('
/tmp/cciGIkGG.s:478: Error: junk at end of line: `,9'
make[2]: *** [power_ISA2_05-power_ISA2_05.o] Error 1
make[2]: Leaving directory `/tmp/Valgrind_review/valgrind_ISA2_05/memcheck/tests/ppc64'
make[1]: *** [check-am] Error 2
make[1]: Leaving directory `/tmp/Valgrind_review/valgrind_ISA2_05/memcheck/tests/ppc64' make: *** [check-recursive] Error 1

This patch fixes the problem by adding a configure check to determine if these
phased out instructions are supported by the binutils, and the result of that
configure check is used to decide whether or not to compile in the source for
testing these instructions.

Bugzilla 323116

committed by Carl Love, carll@us.ibm.com

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13490 a5019735-40e9-0310-863c-91ae7b9d1cf9