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Date: Wed, 16 Dec 2015 00:42:27 +0300 From: Yury Norov <ynorov@...iumnetworks.com> To: <arnd@...db.de>, <catalin.marinas@....com>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org> CC: <ynorov@...iumnetworks.com>, <pinskia@...il.com>, <Prasun.Kapoor@...iumnetworks.com>, <schwab@...e.de>, <Nathan_Lynch@...tor.com>, <agraf@...e.de>, <klimov.linux@...il.com>, <broonie@...nel.org>, <jan.dakinevich@...il.com>, <ddaney.cavm@...il.com>, <bamvor.zhangjian@...wei.com>, <philipp.tomsich@...obroma-systems.com>, <joseph@...esourcery.com>, <christoph.muellner@...obroma-systems.com> Subject: [PATCH v6 01/20] arm64: ilp32: add documentation on the ILP32 ABI for ARM64 Based on Andrew Pinski's patch-series. Signed-off-by: Yury Norov <ynorov@...iumnetworks.com> --- Documentation/arm64/ilp32.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 Documentation/arm64/ilp32.txt diff --git a/Documentation/arm64/ilp32.txt b/Documentation/arm64/ilp32.txt new file mode 100644 index 0000000..ad3a48e --- /dev/null +++ b/Documentation/arm64/ilp32.txt @@ -0,0 +1,17 @@ +ILP32 AARCH64 SYSCALL ABI +========================= + +This document describes the ILP32 syscall ABI and where it differs +from the generic compat linux syscall interface. + +Syscalls which normally would pass 64bit values as two arguments; +now pass the 64bit value as one argument. + +struct rt_sigframe is redefined and contains struct compat_siginfo, +as compat syscalls expects, and struct sigframe, taken from lp64 to +handle AARCH64 register set. + +Syscalls openat and open_by_handle_at are as non-compat as, it's +temporary solution. There is expected global refactoring for all +platforms. + -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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