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[PULL,41/51] bsd-user: Implement mprotect(2)

Message ID 20231003233215.95557-42-imp@bsdimp.com
State New
Headers show
Series [PULL,01/51] bsd-user: define TARGET_RFSPAWN for rfork to use vfork(2) semantics, and fix RLIM_INFINITY | expand

Commit Message

Warner Losh Oct. 3, 2023, 11:32 p.m. UTC 
From: Stacey Son <sson@FreeBSD.org>

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20230925182709.4834-14-kariem.taha2.7@gmail.com>
---
 bsd-user/bsd-mem.h            | 7 +++++++
 bsd-user/freebsd/os-syscall.c | 4 ++++
 2 files changed, 11 insertions(+)
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Patch

diff --git a/bsd-user/bsd-mem.h b/bsd-user/bsd-mem.h
index 76b504f70c5..0f9e4a1d4be 100644
--- a/bsd-user/bsd-mem.h
+++ b/bsd-user/bsd-mem.h
@@ -81,4 +81,11 @@  static inline abi_long do_bsd_munmap(abi_long arg1, abi_long arg2)
     return get_errno(target_munmap(arg1, arg2));
 }
 
+/* mprotect(2) */
+static inline abi_long do_bsd_mprotect(abi_long arg1, abi_long arg2,
+        abi_long arg3)
+{
+    return get_errno(target_mprotect(arg1, arg2, arg3));
+}
+
 #endif /* BSD_USER_BSD_MEM_H */
diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c
index b03837d032a..2d8f1a953b2 100644
--- a/bsd-user/freebsd/os-syscall.c
+++ b/bsd-user/freebsd/os-syscall.c
@@ -807,6 +807,10 @@  static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
         ret = do_bsd_munmap(arg1, arg2);
         break;
 
+    case TARGET_FREEBSD_NR_mprotect: /* mprotect(2) */
+        ret = do_bsd_mprotect(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);