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| /openbmc/linux/arch/openrisc/include/asm/ |
| H A D | syscalls.h | 37fb3dec Fri Dec 03 16:10:18 CST 2021 Stafford Horne <shorne@gmail.com> openrisc: Add clone3 ABI wrapper
[ Upstream commit 433fe39f674d58bc7a3e8254a5d2ffc290b7e04e ]
Like fork and clone the clone3 syscall needs a wrapper to save callee
saved registers, which is required by the OpenRISC ABI. This came up
after auditing code following a discussion with Rob Landley and Arnd
Bergmann [0].
Tested with the clone3 kselftests and there were no issues.
[0] https://lore.kernel.org/all/41206fc7-f8ce-98aa-3718-ba3e1431e320@landley.net/T/#m9c0cdb2703813b9df4da04cf6b30de1f1aa89944
Fixes: 07e83dfbe16c ("openrisc: Enable the clone3 syscall")
Cc: Rob Landley <rob@landley.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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| /openbmc/linux/arch/openrisc/kernel/ |
| H A D | entry.S | 37fb3dec Fri Dec 03 16:10:18 CST 2021 Stafford Horne <shorne@gmail.com> openrisc: Add clone3 ABI wrapper
[ Upstream commit 433fe39f674d58bc7a3e8254a5d2ffc290b7e04e ]
Like fork and clone the clone3 syscall needs a wrapper to save callee
saved registers, which is required by the OpenRISC ABI. This came up
after auditing code following a discussion with Rob Landley and Arnd
Bergmann [0].
Tested with the clone3 kselftests and there were no issues.
[0] https://lore.kernel.org/all/41206fc7-f8ce-98aa-3718-ba3e1431e320@landley.net/T/#m9c0cdb2703813b9df4da04cf6b30de1f1aa89944
Fixes: 07e83dfbe16c ("openrisc: Enable the clone3 syscall")
Cc: Rob Landley <rob@landley.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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