https://bugs.kde.org/show_bug.cgi?id=398649
Bug ID: 398649
Summary: New s390x z13 support doesn't build with older
gcc/binutils
Product: valgrind
Version: 3.14 SVN
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: jsew...@acm.org
Reporter: m...@klomp.org
Target Milestone: ---
Fairly old gcc/binutils might not have z13 support. But there are no configure
checks for this.
This impacts the code in s390x_dirtyhelper_vec_binop:
gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I.. -I.. -I../include -I../include
-I../VEX/pub -I../VEX/pub -DVGA_s390x=1 -DVGO_linux=1 -DVGP_s390x_linux=1
-DVGPV_s390x_linux_vanilla=1 -Ipriv -m64 -O2 -finline-functions -g -Wall
-Wmissing-prototypes -Wshadow -Wpointer-arith -Wstrict-prototypes
-Wmissing-declarations -Wcast-align -Wcast-qual -Wwrite-strings -Wempty-body
-Wformat -Wformat-security -Wignored-qualifiers -Wmissing-parameter-type
-Wlogical-op -Wold-style-declaration -fno-stack-protector -fno-strict-aliasing
-fno-builtin -fomit-frame-pointer -Wbad-function-cast -fstrict-aliasing -g
-pipe -Wall --param=ssp-buffer-size=4 -march=z9-109 -mtune=z10 -MT
priv/libvex_s390x_linux_a-guest_s390_helpers.o -MD -MP -MF
priv/.deps/libvex_s390x_linux_a-guest_s390_helpers.Tpo -c -o
priv/libvex_s390x_linux_a-guest_s390_helpers.o `test -f
'priv/guest_s390_helpers.c' || echo './'`priv/guest_s390_helpers.c
priv/guest_s390_helpers.c: In function 's390x_dirtyhelper_vec_binop':
priv/guest_s390_helpers.c:2505: error: unknown register name 'v18' in 'asm'
priv/guest_s390_helpers.c:2505: error: unknown register name 'v17' in 'asm'
priv/guest_s390_helpers.c:2505: error: unknown register name 'v16' in 'asm'
And the new testcases vector, lsc2 and ppno.
When those are behind some configure check (I haven't figured out which one
yet, but just disabled that code) things seem to work fine (for any non z13
code of course, but it is not expected any z13 code runs on such old setups).
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