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Sat, 09 Sep 2023 12:38:39 -0700 (PDT) From: Karim Taha To: qemu-devel@nongnu.org Cc: imp@bsdimp.com, Stacey Son , Karim Taha , Richard Henderson Subject: [PATCH v3 12/23] bsd-user: Implement mmap(2) and munmap(2) Date: Sat, 9 Sep 2023 22:36:53 +0300 Message-ID: <20230909193704.1827-13-kariem.taha2.7@gmail.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230909193704.1827-1-kariem.taha2.7@gmail.com> References: <20230909193704.1827-1-kariem.taha2.7@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::32c; envelope-from=kariem.taha2.7@gmail.com; helo=mail-wm1-x32c.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 Signed-off-by: Stacey Son Signed-off-by: Karim Taha Reviewed-by: Warner Losh Reviewed-by: Richard Henderson --- bsd-user/bsd-mem.h | 20 ++++++++++++++++++++ bsd-user/freebsd/os-syscall.c | 9 +++++++++ 2 files changed, 29 insertions(+) diff --git a/bsd-user/bsd-mem.h b/bsd-user/bsd-mem.h index d865e0807d..76b504f70c 100644 --- a/bsd-user/bsd-mem.h +++ b/bsd-user/bsd-mem.h @@ -61,4 +61,24 @@ extern struct bsd_shm_regions bsd_shm_regions[]; extern abi_ulong target_brk; extern abi_ulong initial_target_brk; +/* mmap(2) */ +static inline abi_long do_bsd_mmap(void *cpu_env, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5, abi_long arg6, abi_long arg7, + abi_long arg8) +{ + if (regpairs_aligned(cpu_env) != 0) { + arg6 = arg7; + arg7 = arg8; + } + return get_errno(target_mmap(arg1, arg2, arg3, + target_to_host_bitmask(arg4, mmap_flags_tbl), + arg5, target_arg64(arg6, arg7))); +} + +/* munmap(2) */ +static inline abi_long do_bsd_munmap(abi_long arg1, abi_long arg2) +{ + return get_errno(target_munmap(arg1, arg2)); +} + #endif /* BSD_USER_BSD_MEM_H */ diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c index 7e2a395e0f..d88f62319b 100644 --- a/bsd-user/freebsd/os-syscall.c +++ b/bsd-user/freebsd/os-syscall.c @@ -486,6 +486,15 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1, /* * Memory management system calls. */ + case TARGET_FREEBSD_NR_mmap: /* mmap(2) */ + ret = do_bsd_mmap(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6, arg7, + arg8); + break; + + case TARGET_FREEBSD_NR_munmap: /* munmap(2) */ + ret = do_bsd_munmap(arg1, arg2); + 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);