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util/osdep: Add qemu_mprotect_rw 

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>
This commit is contained in:
Richard Henderson 2021-03-10 17:47:33 -06:00
parent cd9ea992e9
commit d7107fc00a
2 changed files with 10 additions and 0 deletions
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1
include/qemu/osdep.h
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@ -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);

9
util/osdep.c
View File

@ -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