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 11:54:44 +0100 [thread overview]
Message-ID: <41989f42-bca7-759f-8942-8b295d9f48eb@redhat.com> (raw)
In-Reply-To: <20230316164428.275147-13-iii@linux.ibm.com>
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?
Thomas
next prev parent reply other threads:[~2023-03-17 10:55 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 [this message]
2023-03-17 11:00 ` Thomas Huth
2023-03-17 11:02 ` Ilya Leoshkevich
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