From 6e8dcacd0840b3c38e7ec664bb9adbccc2108fdd Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 27 Dec 2021 07:01:24 -0800 Subject: linux-user: Add code for PR_GET/SET_UNALIGN MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This requires extra work for each target, but adds the common syscall code, and the necessary flag in CPUState. Reviewed-by: Warner Losh Reviewed-by: Laurent Vivier Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson Message-Id: <20211227150127.2659293-4-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier --- cpu.c | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) (limited to 'cpu.c') diff --git a/cpu.c b/cpu.c index 945dd3dded..016bf06a1a 100644 --- a/cpu.c +++ b/cpu.c @@ -174,13 +174,23 @@ void cpu_exec_unrealizefn(CPUState *cpu) cpu_list_remove(cpu); } +/* + * This can't go in hw/core/cpu.c because that file is compiled only + * once for both user-mode and system builds. + */ static Property cpu_common_props[] = { -#ifndef CONFIG_USER_ONLY +#ifdef CONFIG_USER_ONLY + /* + * Create a property for the user-only object, so users can + * adjust prctl(PR_SET_UNALIGN) from the command-line. + * Has no effect if the target does not support the feature. + */ + DEFINE_PROP_BOOL("prctl-unalign-sigbus", CPUState, + prctl_unalign_sigbus, false), +#else /* - * Create a memory property for softmmu CPU object, - * so users can wire up its memory. (This can't go in hw/core/cpu.c - * because that file is compiled only once for both user-mode - * and system builds.) The default if no link is set up is to use + * Create a memory property for softmmu CPU object, so users can + * wire up its memory. The default if no link is set up is to use * the system address space. */ DEFINE_PROP_LINK("memory", CPUState, memory, TYPE_MEMORY_REGION, -- cgit v1.2.3-59-g8ed1b