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| author | Shaobo Song <shnusongshaobo@gmail.com> | 2022-06-24 23:02:17 +0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2022-07-12 10:30:10 +0530 |
| commit | ba8924113ca459d02ee67656a713f7ff494b968e (patch) | |
| tree | 950686eb0dfad3877581a155d22b34247f596534 | |
| parent | 9fed1bca6bc643ce91b6117f4974421aaede4751 (diff) | |
| download | focaccia-qemu-ba8924113ca459d02ee67656a713f7ff494b968e.tar.gz focaccia-qemu-ba8924113ca459d02ee67656a713f7ff494b968e.zip | |
tcg: Fix returned type in alloc_code_gen_buffer_splitwx_memfd()
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-stable@nongnu.org
Fixes: 7be9ebcf924c ("tcg: Return the map protection from alloc_code_gen_buffer")
Signed-off-by: Shaobo Song <shnusongshaobo@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220624150216.3627-1-shnusongshaobo@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| -rw-r--r-- | tcg/region.c | 2 |
1 files changed, 1 insertions, 1 deletions
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; |