diff mbox series

[24/26] util/osdep: Add qemu_mprotect_rw

Message ID 20210311002156.253711-25-richard.henderson@linaro.org
State Superseded
Headers show
Series tcg: Workaround macOS 11.2 mprotect bug | expand

Commit Message

Richard Henderson March 11, 2021, 12:21 a.m. UTC
For --enable-tcg-interpreter on Windows, we will need this.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 include/qemu/osdep.h | 1 +
 util/osdep.c         | 9 +++++++++
 2 files changed, 10 insertions(+)

-- 
2.25.1

Comments

Philippe Mathieu-Daudé March 13, 2021, 5:51 p.m. UTC | #1
On 3/11/21 1:21 AM, Richard Henderson wrote:
> For --enable-tcg-interpreter on Windows, we will need this.

> 

> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

> ---

>  include/qemu/osdep.h | 1 +

>  util/osdep.c         | 9 +++++++++

>  2 files changed, 10 insertions(+)


Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
diff mbox series

Patch

diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index ba15be9c56..5cc2e57bdf 100644
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -494,6 +494,7 @@  void sigaction_invoke(struct sigaction *action,
 #endif
 
 int qemu_madvise(void *addr, size_t len, int advice);
+int qemu_mprotect_rw(void *addr, size_t size);
 int qemu_mprotect_rwx(void *addr, size_t size);
 int qemu_mprotect_none(void *addr, size_t size);
 
diff --git a/util/osdep.c b/util/osdep.c
index 66d01b9160..42a0a4986a 100644
--- a/util/osdep.c
+++ b/util/osdep.c
@@ -97,6 +97,15 @@  static int qemu_mprotect__osdep(void *addr, size_t size, int prot)
 #endif
 }
 
+int qemu_mprotect_rw(void *addr, size_t size)
+{
+#ifdef _WIN32
+    return qemu_mprotect__osdep(addr, size, PAGE_READWRITE);
+#else
+    return qemu_mprotect__osdep(addr, size, PROT_READ | PROT_WRITE);
+#endif
+}
+
 int qemu_mprotect_rwx(void *addr, size_t size)
 {
 #ifdef _WIN32