From: Shaobo Song <shnusongsha...@gmail.com>
This fixes a bug in POSIX-compliant environments. Since we had allocated
a buffer named 'tcg-jit' with read-write access protections we need a int
type to combine these access flags and return it, whereas we had inexplicably
return a bool type. It may cause an unnecessary protection change in
tcg_region_init().
Cc: qemu-sta...@nongnu.org
Fixes: 7be9ebcf924c ("tcg: Return the map protection from
alloc_code_gen_buffer")
Signed-off-by: Shaobo Song <shnusongsha...@gmail.com>
Reviewed-by: Alex Bennée <alex.ben...@linaro.org>
Message-Id: <20220624150216.3627-1-shnusongsha...@gmail.com>
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
tcg/region.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tcg/region.c b/tcg/region.c
index 71ea81d671..88d6bb273f 100644
--- a/tcg/region.c
+++ b/tcg/region.c
@@ -548,7 +548,7 @@ static int alloc_code_gen_buffer_anon(size_t size, int prot,
#ifdef CONFIG_POSIX
#include "qemu/memfd.h"
-static bool alloc_code_gen_buffer_splitwx_memfd(size_t size, Error **errp)
+static int alloc_code_gen_buffer_splitwx_memfd(size_t size, Error **errp)
{
void *buf_rw = NULL, *buf_rx = MAP_FAILED;
int fd = -1;
--
2.34.1
