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wrap munmap to prevent unwanted unmaps
[ginge.git]
/
loader
/
patches.c
diff --git
a/loader/patches.c
b/loader/patches.c
index
673c3c5
..
5418c1c
100644
(file)
--- a/
loader/patches.c
+++ b/
loader/patches.c
@@
-33,6
+33,13
@@
static const unsigned int sig_mmap[] = {
};
#define sig_mask_mmap sig_mask_all
};
#define sig_mask_mmap sig_mask_all
+static const unsigned int sig_munmap[] = {
+ 0xef90005b, // svc 0x90005b
+ 0xe3700a01, // cmn r0, #0x1000
+ 0x312fff1e, // bxcc lr
+};
+#define sig_mask_munmap sig_mask_all
+
static const unsigned int sig_mmap2[] = {
0xe52d5004, // push {r5}
0xe59d5008, // ldr r5, [sp, #8]
static const unsigned int sig_mmap2[] = {
0xe52d5004, // push {r5}
0xe59d5008, // ldr r5, [sp, #8]
@@
-132,6
+139,7
@@
static const struct {
PATCH(open),
PATCH(mmap),
PATCH(mmap2), // mmap2 syscall
PATCH(open),
PATCH(mmap),
PATCH(mmap2), // mmap2 syscall
+ PATCH(munmap),
PATCH(read),
PATCH(ioctl),
PATCH_(hw_ioctl, hw_ioctl, 1),
PATCH(read),
PATCH(ioctl),
PATCH_(hw_ioctl, hw_ioctl, 1),