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Mon, 25 Sep 2023 11:28:56 -0700 (PDT) From: Karim Taha To: qemu-devel@nongnu.org Cc: Warner Losh , Richard Henderson , Stacey Son , Kyle Evans , Karim Taha Subject: [PATCH v6 19/23] bsd-user: Implement shm_open(2) Date: Mon, 25 Sep 2023 21:27:05 +0300 Message-ID: <20230925182709.4834-20-kariem.taha2.7@gmail.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230925182709.4834-1-kariem.taha2.7@gmail.com> References: <20230925182709.4834-1-kariem.taha2.7@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::330; envelope-from=kariem.taha2.7@gmail.com; helo=mail-wm1-x330.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Stacey Son Co-authored-by: Kyle Evans Signed-off-by: Stacey Son Signed-off-by: Kyle Evans Signed-off-by: Karim Taha Reviewed-by: Richard Henderson --- bsd-user/bsd-mem.h | 25 +++++++++++++++++++++++++ bsd-user/freebsd/os-syscall.c | 4 ++++ 2 files changed, 29 insertions(+) diff --git a/bsd-user/bsd-mem.h b/bsd-user/bsd-mem.h index b296c5c6f0..f8dc943c23 100644 --- a/bsd-user/bsd-mem.h +++ b/bsd-user/bsd-mem.h @@ -257,4 +257,29 @@ static inline abi_long do_obreak(abi_ulong brk_val) return target_brk; } +/* shm_open(2) */ +static inline abi_long do_bsd_shm_open(abi_ulong arg1, abi_long arg2, + abi_long arg3) +{ + int ret; + void *p; + + if (arg1 == (uintptr_t)SHM_ANON) { + p = SHM_ANON; + } else { + p = lock_user_string(arg1); + if (p == NULL) { + return -TARGET_EFAULT; + } + } + ret = get_errno(shm_open(p, target_to_host_bitmask(arg2, fcntl_flags_tbl), + arg3)); + + if (p != SHM_ANON) { + unlock_user(p, arg1, 0); + } + + return ret; +} + #endif /* BSD_USER_BSD_MEM_H */ diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c index 5cd60fc272..effa6dac54 100644 --- a/bsd-user/freebsd/os-syscall.c +++ b/bsd-user/freebsd/os-syscall.c @@ -639,6 +639,10 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1, ret = do_bsd_mincore(arg1, arg2, arg3); break; + case TARGET_FREEBSD_NR_freebsd12_shm_open: /* shm_open(2) */ + ret = do_bsd_shm_open(arg1, arg2, arg3); + break; + #if defined(__FreeBSD_version) && __FreeBSD_version >= 1300048 case TARGET_FREEBSD_NR_shm_open2: /* shm_open2(2) */ ret = do_freebsd_shm_open2(arg1, arg2, arg3, arg4, arg5);