From: Michal Suchanek <msuchanek@suse.de>
To: linuxppc-dev@lists.ozlabs.org
Cc: Michal Suchanek <msuchanek@suse.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Rob Herring <robh@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Christophe Leroy <christophe.leroy@c-s.fr>,
Thomas Gleixner <tglx@linutronix.de>,
Arnd Bergmann <arnd@arndb.de>, Nayna Jain <nayna@linux.ibm.com>,
Eric Richter <erichte@linux.ibm.com>,
Claudio Carvalho <cclaudio@linux.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>,
Hari Bathini <hbathini@linux.ibm.com>,
Masahiro Yamada <masahiroy@kernel.org>,
Thiago Jung Bauermann <bauerman@linux.ibm.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Valentin Schneider <valentin.schneider@arm.com>,
Jordan Niethe <jniethe5@gmail.com>,
Michael Neuling <mikey@neuling.org>,
Gustavo Luiz Duarte <gustavold@linux.ibm.com>,
Allison Randal <allison@lohutok.net>,
"Eric W. Biederman" <ebiederm@xmission.com>,
linux-kernel@vger.kernel.org,
"linux-fsdevel @ vger . kernel . org --in-reply-to="
<20200225173541.1549955-1-npiggin@gmail.com>
Subject: [PATCH v11 6/8] powerpc/64: Make COMPAT user-selectable disabled on littleendian by default.
Date: Thu, 19 Mar 2020 12:52:26 +0100 [thread overview]
Message-ID: <4ebc213bc09013531c852c0e083f286f55cb69ad.1584613649.git.msuchanek@suse.de> (raw)
In-Reply-To: <cover.1584613649.git.msuchanek@suse.de>
On bigendian ppc64 it is common to have 32bit legacy binaries but much
less so on littleendian.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
v3: make configurable
---
arch/powerpc/Kconfig | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 497b7d0b2d7e..29d00b3959b9 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -264,8 +264,9 @@ config PANIC_TIMEOUT
default 180
config COMPAT
- bool
- default y if PPC64
+ bool "Enable support for 32bit binaries"
+ depends on PPC64
+ default y if !CPU_LITTLE_ENDIAN
select COMPAT_BINFMT_ELF
select ARCH_WANT_OLD_COMPAT_IPC
select COMPAT_OLD_SIGACTION
--
2.23.0
WARNING: multiple messages have this Message-ID (diff)
From: Michal Suchanek <msuchanek@suse.de>
To: linuxppc-dev@lists.ozlabs.org
Cc: Mark Rutland <mark.rutland@arm.com>,
Gustavo Luiz Duarte <gustavold@linux.ibm.com>,
Peter Zijlstra <peterz@infradead.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
linux-kernel@vger.kernel.org, Paul Mackerras <paulus@samba.org>,
Jiri Olsa <jolsa@redhat.com>, Rob Herring <robh@kernel.org>,
Michael Neuling <mikey@neuling.org>,
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Masahiro Yamada <masahiroy@kernel.org>,
Nayna Jain <nayna@linux.ibm.com>,
"linux-fsdevel @ vger . kernel . org --in-reply-to="
<20200225173541.1549955-1-npiggin@gmail.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Ingo Molnar <mingo@redhat.com>,
Allison Randal <allison@lohutok.net>,
Jordan Niethe <jniethe5@gmail.com>,
Michal Suchanek <msuchanek@suse.de>,
Valentin Schneider <valentin.schneider@arm.com>,
Arnd Bergmann <arnd@arndb.de>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Namhyung Kim <namhyung@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Hari Bathini <hbathini@linux.ibm.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Nicholas Piggin <npiggin@gmail.com>,
Claudio Carvalho <cclaudio@linux.ibm.com>,
Eric Richter <erichte@linux.ibm.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
"David S. Miller" <davem@davemloft.net>,
Thiago Jung Bauermann <bauerman@linux.ibm.com>
Subject: [PATCH v11 6/8] powerpc/64: Make COMPAT user-selectable disabled on littleendian by default.
Date: Thu, 19 Mar 2020 12:52:26 +0100 [thread overview]
Message-ID: <4ebc213bc09013531c852c0e083f286f55cb69ad.1584613649.git.msuchanek@suse.de> (raw)
In-Reply-To: <cover.1584613649.git.msuchanek@suse.de>
On bigendian ppc64 it is common to have 32bit legacy binaries but much
less so on littleendian.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
v3: make configurable
---
arch/powerpc/Kconfig | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 497b7d0b2d7e..29d00b3959b9 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -264,8 +264,9 @@ config PANIC_TIMEOUT
default 180
config COMPAT
- bool
- default y if PPC64
+ bool "Enable support for 32bit binaries"
+ depends on PPC64
+ default y if !CPU_LITTLE_ENDIAN
select COMPAT_BINFMT_ELF
select ARCH_WANT_OLD_COMPAT_IPC
select COMPAT_OLD_SIGACTION
--
2.23.0
next prev parent reply other threads:[~2020-03-19 11:53 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-19 11:52 [PATCH v11 0/8] Disable compat cruft on ppc64le v11 Michal Suchanek
2020-03-19 11:52 ` Michal Suchanek
2020-03-19 11:52 ` [PATCH v11 1/8] powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro Michal Suchanek
2020-03-19 11:52 ` Michal Suchanek
2020-03-19 11:52 ` [PATCH v11 2/8] powerpc: move common register copy functions from signal_32.c to signal.c Michal Suchanek
2020-03-19 11:52 ` Michal Suchanek
2020-03-19 11:52 ` [PATCH v11 3/8] powerpc/perf: consolidate read_user_stack_32 Michal Suchanek
2020-03-19 11:52 ` Michal Suchanek
2020-03-19 11:52 ` [PATCH v11 4/8] powerpc/perf: consolidate valid_user_sp Michal Suchanek
2020-03-19 11:52 ` Michal Suchanek
2020-03-19 13:35 ` Andy Shevchenko
2020-03-19 13:35 ` Andy Shevchenko
2020-03-19 14:04 ` Michal Suchánek
2020-03-19 14:04 ` Michal Suchánek
2020-03-19 14:16 ` Christophe Leroy
2020-03-19 14:16 ` Christophe Leroy
2020-03-19 14:46 ` Michal Suchánek
2020-03-19 14:46 ` Michal Suchánek
2020-03-19 11:52 ` [PATCH v11 5/8] powerpc/64: make buildable without CONFIG_COMPAT Michal Suchanek
2020-03-19 11:52 ` Michal Suchanek
2020-03-19 11:52 ` Michal Suchanek [this message]
2020-03-19 11:52 ` [PATCH v11 6/8] powerpc/64: Make COMPAT user-selectable disabled on littleendian by default Michal Suchanek
2020-03-19 11:52 ` [PATCH v11 7/8] powerpc/perf: split callchain.c by bitness Michal Suchanek
2020-03-19 11:52 ` Michal Suchanek
2020-03-19 11:52 ` [PATCH v11 8/8] MAINTAINERS: perf: Add pattern that matches ppc perf to the perf entry Michal Suchanek
2020-03-19 11:52 ` Michal Suchanek
2020-03-19 12:20 ` [PATCH v11 0/8] Disable compat cruft on ppc64le v11 Michal Suchánek
-- strict thread matches above, loose matches on Subject: below --
2020-02-25 17:35 [PATCH v3 00/32] powerpc/64: interrupts and syscalls series Nicholas Piggin
2020-03-19 12:19 ` [PATCH v11 0/8] Disable compat cruft on ppc64le v11 Michal Suchanek
2020-03-19 12:19 ` [PATCH v11 6/8] powerpc/64: Make COMPAT user-selectable disabled on littleendian by default Michal Suchanek
2020-03-19 12:19 ` Michal Suchanek
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