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Commit 89d49841 authored by Christian Borntraeger's avatar Christian Borntraeger Committed by Martin Schwidefsky
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[S390] Fix checkstack for s390 



With -march=z990 and later gcc can use the long displacement facility
insruction lay for stack register handling. This patch adopts checkstack
to catch lay in addition to ahi and aghi.

Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 4a672cfa

scripts/checkstack.pl

+4 −1
Original line number Diff line number Diff line
@@ -81,7 +81,10 @@ my (@stack, $re, $dre, $x, $xs); 
		$re = qr/.*st[dw]u.*r1,-($x{1,8})\(r1\)/o;

	} elsif ($arch =~ /^s390x?$/) {

		#   11160:       a7 fb ff 60             aghi   %r15,-160

		$re = qr/.*ag?hi.*\%r15,-(([0-9]{2}|[3-9])[0-9]{2})/o;

		# or

		#  100092:	 e3 f0 ff c8 ff 71	 lay	 %r15,-56(%r15)

		$re = qr/.*(?:lay|ag?hi).*\%r15,-(([0-9]{2}|[3-9])[0-9]{2})

		      (?:\(\%r15\))?$/ox;

	} elsif ($arch =~ /^sh64$/) {

		#XXX: we only check for the immediate case presently,

		#     though we will want to check for the movi/sub