From: Michal Suchanek <msuchanek@suse.de>
To: linuxppc-dev@lists.ozlabs.org
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>,
David Hildenbrand <david@redhat.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Paul Mackerras <paulus@samba.org>,
Breno Leitao <leitao@debian.org>,
Michael Neuling <mikey@neuling.org>,
Diana Craciun <diana.craciun@nxp.com>,
Firoz Khan <firoz.khan@linaro.org>,
Hari Bathini <hbathini@linux.ibm.com>,
Michal Suchanek <msuchanek@suse.de>,
Joel Stanley <joel@jms.id.au>, Arnd Bergmann <arnd@arndb.de>,
Nicholas Piggin <npiggin@gmail.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Thomas Gleixner <tglx@linutronix.de>,
Allison Randal <allison@lohutok.net>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org,
"Eric W. Biederman" <ebiederm@xmission.com>,
Andrew Donnellan <andrew.donnellan@au1.ibm.com>,
linux-fsdevel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH v9 7/8] powerpc/64: Make COMPAT user-selectable disabled on littleendian by default.
Date: Fri, 13 Sep 2019 14:58:01 +0200 [thread overview]
Message-ID: <0017ff10ff75c3b5587406ad81f6827872e39f6e.1568319276.git.msuchanek@suse.de> (raw)
In-Reply-To: <cover.1568319275.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 5bab0bb6b833..b0339e892329 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:[~2019-09-13 13:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-13 12:57 [PATCH v9 0/8] Disable compat cruft on ppc64le v9 Michal Suchanek
2019-09-13 12:57 ` [PATCH v9 1/8] powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro Michal Suchanek
2019-09-13 12:57 ` [PATCH v9 2/8] powerpc: move common register copy functions from signal_32.c to signal.c Michal Suchanek
2019-09-13 12:57 ` [PATCH v9 3/8] powerpc/perf: consolidate read_user_stack_32 Michal Suchanek
2019-09-13 12:57 ` [PATCH v9 4/8] powerpc/perf: consolidate valid_user_sp Michal Suchanek
2019-09-13 12:57 ` [PATCH v9 5/8] powerpc/perf: remove current_is_64bit() Michal Suchanek
2019-09-13 12:58 ` [PATCH v9 6/8] powerpc/64: make buildable without CONFIG_COMPAT Michal Suchanek
2019-09-13 12:58 ` Michal Suchanek [this message]
2019-09-13 12:58 ` [PATCH v9 8/8] powerpc/perf: split callchain.c by bitness Michal Suchanek
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