linux_dsm_epyc7002/arch/x86/ia32
Brian Gerst 121b32a58a x86/entry/32: Use IA32-specific wrappers for syscalls taking 64-bit arguments
For the 32-bit syscall interface, 64-bit arguments (loff_t) are passed via
a pair of 32-bit registers.  These register pairs end up in consecutive stack
slots, which matches the C ABI for 64-bit arguments.  But when accessing the
registers directly from pt_regs, the wrapper needs to manually reassemble the
64-bit value.  These wrappers already exist for 32-bit compat, so make them
available to 32-bit native in preparation for enabling pt_regs-based syscalls.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
Link: https://lkml.kernel.org/r/20200313195144.164260-16-brgerst@gmail.com
2020-03-21 16:03:24 +01:00
..
audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ia32_aout.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ia32_signal.c x86: Remove force_iret() 2020-01-08 19:40:51 +01:00
Makefile x86/entry/32: Use IA32-specific wrappers for syscalls taking 64-bit arguments 2020-03-21 16:03:24 +01:00