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bsd-user:Add AArch64 improvements and signal handling functions

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Added get_ucontext_sigreturn function to check processor state ensuring current execution mode is EL0 and no flags
indicating interrupts or exceptions are set.
Updated AArch64 code to use CF directly without reading/writing the entire processor state, improving efficiency.
Changed FP data structures to use Int128 instead of __uint128_t, leveraging QEMU's generic mechanism for referencing this type.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Ajeet Singh <itachis@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240707191128.10509-9-itachis@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
This commit is contained in:
Stacey Son 2024-07-08 00:41:28 +05:30 • committed by Warner Losh
parent dadfc6d5df
commit ce6c541dcb
5 changed files with 26 additions and 8 deletions
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3
bsd-user/qemu.h
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@ -17,6 +17,9 @@
#ifndef QEMU_H
#define QEMU_H
#include <sys/param.h>
#include "qemu/int128.h"
#include "cpu.h"
#include "qemu/units.h"
#include "exec/cpu_ldst.h"