Return support for 32-bit jumps on x86-64

Add an option to allow the caller to decide whether to use 32-bit or 64-bit
jumps (the latter requires almost 3 times more space (5 vs 14 bytes)).

Also see: #13

1 files changed, 4 insertions, 0 deletions

diff --git a/subhook_private.h b/subhook_private.h
index 142cae6..768cf2f 100644
--- a/subhook_private.h
+++ b/subhook_private.h
@@ -32,8 +32,12 @@ struct subhook {
 	int installed;
 	void *src;
 	void *dst;
+	subhook_options_t options;
 	void *code;
 	void *trampoline;
+	size_t jmp_size;
+	size_t trampoline_size;
+	size_t trampoline_len;
 };
 
 void *subhook_unprotect(void *address, size_t size);