From: Thomas Huth <thuth@redhat.com>
To: Ilya Leoshkevich <iii@linux.ibm.com>,
Richard Henderson <richard.henderson@linaro.org>,
David Hildenbrand <david@redhat.com>
Cc: qemu-s390x@nongnu.org, qemu-devel@nongnu.org
Subject: Re: [PATCH v4 12/12] tests/tcg/s390x: Test unaligned accesses
Date: Fri, 17 Mar 2023 12:00:07 +0100 [thread overview]
Message-ID: <c7e9b213-bcf6-1f11-6c12-e62666a9def5@redhat.com> (raw)
In-Reply-To: <41989f42-bca7-759f-8942-8b295d9f48eb@redhat.com>
On 17/03/2023 11.54, Thomas Huth wrote:
> On 16/03/2023 17.44, Ilya Leoshkevich wrote:
>> Add a number of small test that check whether accessing unaligned
>> addresses in various ways leads to a specification exception.
>>
>> Run these test both in softmmu and user configurations; expect a PGM
>> in one case and SIGILL in the other.
>>
>> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
>> ---
> ...
>> diff --git a/tests/tcg/s390x/Makefile.softmmu-target
>> b/tests/tcg/s390x/Makefile.softmmu-target
>> index 725b6c598db..6d8bf299b28 100644
>> --- a/tests/tcg/s390x/Makefile.softmmu-target
>> +++ b/tests/tcg/s390x/Makefile.softmmu-target
>> @@ -1,11 +1,20 @@
>> S390X_SRC=$(SRC_PATH)/tests/tcg/s390x
>> VPATH+=$(S390X_SRC)
>> QEMU_OPTS=-action panic=exit-failure -kernel
>> +LINK_SCRIPT=$(S390X_SRC)/softmmu.ld
>> +LDFLAGS=-nostdlib -static -Wl,-T$(LINK_SCRIPT)
>> -%: %.S
>> - $(CC) -march=z13 -m64 -nostdlib -static -Wl,-Ttext=0 \
>> - -Wl,--build-id=none $< -o $@
>> +%.o: %.S
>> + $(CC) -march=z13 -m64 -c $< -o $@
>> +
>> +%: %.o $(LINK_SCRIPT)
>> + $(CC) $< -o $@ $(LDFLAGS)
>> TESTS += unaligned-lowcore
>> TESTS += bal
>> TESTS += sam
>> +
>> +include $(S390X_SRC)/pgm-specification.mak
>> +$(PGM_SPECIFICATION_TESTS): pgm-specification-softmmu.o
>> +$(PGM_SPECIFICATION_TESTS): LDFLAGS+=pgm-specification-softmmu.o
>> +TESTS += $(PGM_SPECIFICATION_TESTS)
>> diff --git a/tests/tcg/s390x/Makefile.target
>> b/tests/tcg/s390x/Makefile.target
>> index cf93b966862..1002ab79886 100644
>> --- a/tests/tcg/s390x/Makefile.target
>> +++ b/tests/tcg/s390x/Makefile.target
>> @@ -2,6 +2,9 @@ S390X_SRC=$(SRC_PATH)/tests/tcg/s390x
>> VPATH+=$(S390X_SRC)
>> CFLAGS+=-march=zEC12 -m64
>> +%.o: %.c
>> + $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c $< -o $@
>> +
>> config-cc.mak: Makefile
>> $(quiet-@)( \
>> $(call cc-option,-march=z14, CROSS_CC_HAS_Z14); \
>> @@ -33,6 +36,11 @@ TESTS+=chrl
>> cdsg: CFLAGS+=-pthread
>> cdsg: LDFLAGS+=-pthread
>> +include $(S390X_SRC)/pgm-specification.mak
>> +$(PGM_SPECIFICATION_TESTS): pgm-specification-user.o
>> +$(PGM_SPECIFICATION_TESTS): LDFLAGS+=pgm-specification-user.o
>> +TESTS += $(PGM_SPECIFICATION_TESTS)
> ...
>> diff --git a/tests/tcg/s390x/softmmu.ld b/tests/tcg/s390x/softmmu.ld
>> new file mode 100644
>> index 00000000000..ea944eaa3cb
>> --- /dev/null
>> +++ b/tests/tcg/s390x/softmmu.ld
>> @@ -0,0 +1,20 @@
>> +/*
>> + * Linker script for the softmmu test kernels.
>> + *
>> + * SPDX-License-Identifier: GPL-2.0-or-later
>> + */
>> +
>> +ENTRY(_start)
>> +
>> +SECTIONS {
>> + . = 0;
>> +
>> + .text : {
>> + *(.head)
>> + *(.text)
>> + }
>> +
>> + /DISCARD/ : {
>> + *(*)
>> + }
>> +}
>
> I just gave it a try, and while it's basically working, I see a lot of these
> messages in the console:
>
> /usr/bin/ld: warning: .note.gnu.build-id section discarded, --build-id ignored
>
> I think you should either pass --build-id=none to the linker, or add a
> .note.gnu.build-id section to the linker script?
This seems to work:
diff --git a/tests/tcg/s390x/Makefile.softmmu-target b/tests/tcg/s390x/Makefile.softmmu-target
--- a/tests/tcg/s390x/Makefile.softmmu-target
+++ b/tests/tcg/s390x/Makefile.softmmu-target
@@ -2,7 +2,7 @@ S390X_SRC=$(SRC_PATH)/tests/tcg/s390x
VPATH+=$(S390X_SRC)
QEMU_OPTS=-action panic=exit-failure -kernel
LINK_SCRIPT=$(S390X_SRC)/softmmu.ld
-LDFLAGS=-nostdlib -static -Wl,-T$(LINK_SCRIPT)
+LDFLAGS=-nostdlib -static -Wl,-T$(LINK_SCRIPT) -Wl,--build-id=none
%.o: %.S
$(CC) -march=z13 -m64 -c $< -o $@
I'll squash that in ... no need to resend.
Thomas
next prev parent reply other threads:[~2023-03-17 11:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-16 16:44 [PATCH v4 00/12] target/s390x: Handle unaligned accesses Ilya Leoshkevich
2023-03-16 16:44 ` [PATCH v4 01/12] target/s390x: Handle branching to odd addresses Ilya Leoshkevich
2023-03-16 16:44 ` [PATCH v4 02/12] target/s390x: Handle EXECUTE of " Ilya Leoshkevich
2023-03-16 16:44 ` [PATCH v4 03/12] target/s390x: Handle LGRL from non-aligned addresses Ilya Leoshkevich
2023-03-16 16:44 ` [PATCH v4 04/12] target/s390x: Handle LRL and LGFRL " Ilya Leoshkevich
2023-03-16 16:44 ` [PATCH v4 05/12] target/s390x: Handle LLGFRL " Ilya Leoshkevich
2023-03-16 16:44 ` [PATCH v4 06/12] target/s390x: Handle CRL and CGFRL with " Ilya Leoshkevich
2023-03-16 16:44 ` [PATCH v4 07/12] target/s390x: Handle CGRL and CLGRL " Ilya Leoshkevich
2023-03-16 16:44 ` [PATCH v4 08/12] target/s390x: Handle CLRL and CLGFRL " Ilya Leoshkevich
2023-03-16 16:44 ` [PATCH v4 09/12] target/s390x: Handle STRL to " Ilya Leoshkevich
2023-03-16 16:44 ` [PATCH v4 10/12] target/s390x: Handle STGRL " Ilya Leoshkevich
2023-03-16 16:44 ` [PATCH v4 11/12] target/s390x: Update do_unaligned_access() comment Ilya Leoshkevich
2023-03-16 16:44 ` [PATCH v4 12/12] tests/tcg/s390x: Test unaligned accesses Ilya Leoshkevich
2023-03-17 8:43 ` Thomas Huth
2023-03-17 10:54 ` Thomas Huth
2023-03-17 11:00 ` Thomas Huth [this message]
2023-03-17 11:02 ` Ilya Leoshkevich
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