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a9ad73295c
The current syscall wrapper macros break 64-bit arguments on
rv32 because they only guarantee the first N input registers are
passed to syscalls that accept N arguments. According to the
calling convention, values twice the word size reside in register
pairs and as a result, syscall arguments don't always have a
direct register mapping on rv32.
Instead of using `__MAP(x,__SC_LONG,__VA_ARGS__)` to declare the
type of the `__se(_compat)_sys_*` functions on rv32, change the
function declarations to accept `ulong` arguments and alias them
to the actual syscall implementations, similarly to the existing
macros in include/linux/syscalls.h. This matches previous
behavior and ensures registers are passed to syscalls as-is, no
matter which argument types they expect.
Fixes:
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.. | ||
boot | ||
configs | ||
crypto | ||
errata | ||
include | ||
kernel | ||
kvm | ||
lib | ||
mm | ||
net | ||
purgatory | ||
tools | ||
Kbuild | ||
Kconfig | ||
Kconfig.debug | ||
Kconfig.errata | ||
Kconfig.socs | ||
Makefile | ||
Makefile.postlink |