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[PULL 25/34] util/osdep: Add qemu_mprotect_rw
From: |
Richard Henderson |
Subject: |
[PULL 25/34] util/osdep: Add qemu_mprotect_rw |
Date: |
Fri, 11 Jun 2021 16:41:35 -0700 |
For --enable-tcg-interpreter on Windows, we will need this.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
include/qemu/osdep.h | 1 +
util/osdep.c | 9 +++++++++
2 files changed, 10 insertions(+)
diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index 4c6f2390be..236a045671 100644
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -512,6 +512,7 @@ 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
--
2.25.1
- [PULL 17/34] tcg: Replace region.end with region.total_size, (continued)
- [PULL 17/34] tcg: Replace region.end with region.total_size, Richard Henderson, 2021/06/11
- [PULL 21/34] tcg: Move in_code_gen_buffer and tests to region.c, Richard Henderson, 2021/06/11
- [PULL 23/34] tcg: Return the map protection from alloc_code_gen_buffer, Richard Henderson, 2021/06/11
- [PULL 13/34] accel/tcg: Use MiB in tcg_init_machine, Richard Henderson, 2021/06/11
- [PULL 26/34] tcg: Round the tb_size default from qemu_get_host_physmem, Richard Henderson, 2021/06/11
- [PULL 28/34] tcg: When allocating for !splitwx, begin with PROT_NONE, Richard Henderson, 2021/06/11
- [PULL 31/34] tcg: Fix documentation for tcg_constant_* vs tcg_temp_free_*, Richard Henderson, 2021/06/11
- [PULL 24/34] tcg: Sink qemu_madvise call to common code, Richard Henderson, 2021/06/11
- [PULL 22/34] tcg: Allocate code_gen_buffer into struct tcg_region_state, Richard Henderson, 2021/06/11
- [PULL 20/34] tcg: Tidy split_cross_256mb, Richard Henderson, 2021/06/11
- [PULL 25/34] util/osdep: Add qemu_mprotect_rw,
Richard Henderson <=
- [PULL 27/34] tcg: Merge buffer protection and guard page protection, Richard Henderson, 2021/06/11
- [PULL 29/34] tcg: Move tcg_init_ctx and tcg_ctx from accel/tcg/, Richard Henderson, 2021/06/11
- [PULL 32/34] tcg/arm: Fix tcg_out_op function signature, Richard Henderson, 2021/06/11
- [PULL 30/34] tcg: Introduce tcg_remove_ops_after, Richard Henderson, 2021/06/11
- [PULL 33/34] softfloat: Fix tp init in float32_exp2, Richard Henderson, 2021/06/11
- [PULL 34/34] docs/devel: Explain in more detail the TB chaining mechanisms, Richard Henderson, 2021/06/11
- Re: [PULL 00/34] tcg patch queue, Peter Maydell, 2021/06/13