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Wed, 24 Jul 2024 15:06:24 -0700 (PDT) From: Warner Losh To: qemu-devel@nongnu.org Cc: Kyle Evans , qemu-arm@nongnu.org, Peter Maydell , Warner Losh , Stacey Son , Ajeet Singh , Richard Henderson Subject: [PULL 07/15] bsd-user:Add set_mcontext function for ARM AArch64 Date: Wed, 24 Jul 2024 16:04:40 -0600 Message-ID: <20240724220449.10398-8-imp@bsdimp.com> X-Mailer: git-send-email 2.45.1 In-Reply-To: <20240724220449.10398-1-imp@bsdimp.com> References: <20240724220449.10398-1-imp@bsdimp.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::d2f; envelope-from=imp@bsdimp.com; helo=mail-io1-xd2f.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @bsdimp-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1721858889761116600 Content-Type: text/plain; charset="utf-8" From: Stacey Son The function copies register values from the provided target_mcontext_t structure to the CPUARMState registers. Note:FP is unfinished upstream but will be a separate commit coming soon. Signed-off-by: Stacey Son Signed-off-by: Ajeet Singh Reviewed-by: Richard Henderson Message-Id: <20240707191128.10509-8-itachis@FreeBSD.org> Signed-off-by: Warner Losh --- bsd-user/aarch64/signal.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/bsd-user/aarch64/signal.c b/bsd-user/aarch64/signal.c index 43c886e6036..13faac8ce60 100644 --- a/bsd-user/aarch64/signal.c +++ b/bsd-user/aarch64/signal.c @@ -95,3 +95,25 @@ abi_long setup_sigframe_arch(CPUARMState *env, abi_ulong= frame_addr, return 0; } =20 +/* + * Compare to set_mcontext() in arm64/arm64/machdep.c + * Assumes that the memory is locked if frame points to user memory. + */ +abi_long set_mcontext(CPUARMState *regs, target_mcontext_t *mcp, int srfla= g) +{ + int err =3D 0, i; + const uint64_t *gr =3D mcp->mc_gpregs.gp_x; + + for (i =3D 0; i < 30; i++) { + regs->xregs[i] =3D tswap64(gr[i]); + } + + regs->xregs[TARGET_REG_SP] =3D tswap64(mcp->mc_gpregs.gp_sp); + regs->xregs[TARGET_REG_LR] =3D tswap64(mcp->mc_gpregs.gp_lr); + regs->pc =3D mcp->mc_gpregs.gp_elr; + pstate_write(regs, mcp->mc_gpregs.gp_spsr); + + /* XXX FP? */ + + return err; +} --=20 2.45.1