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| author | June McEnroe <june@causal.agency> | 2016-10-07 20:57:10 -0400 |
|---|---|---|
| committer | June McEnroe <june@causal.agency> | 2016-10-07 20:57:10 -0400 |
| commit | f316fd8abc765510d40d6e17f83bb0611afa9558 (patch) | |
| tree | afb9115d0c6d4a08f0aa75710718cae5d873ca1a | |
| parent | Add runtime functions to jrp (diff) | |
| download | src-f316fd8abc765510d40d6e17f83bb0611afa9558.tar.gz src-f316fd8abc765510d40d6e17f83bb0611afa9558.zip | |
Swap stacks in OP_CALL and wasteful OP_RELO in jrp
NEED MORE BYTES.
| -rwxr-xr-x | .bin/jrp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/.bin/jrp.c b/.bin/jrp.c index b98f750d..20019245 100755 --- a/.bin/jrp.c +++ b/.bin/jrp.c @@ -16,7 +16,8 @@ typedef value *(*fptr)(value *); enum { OP_PROL = 0x90fc8948e5894855, // push ebp; mov rbp, rsp; mov rsp, rdi OP_EPIL = 0xc35dec8948e08948, // mov rax, rsp; mov rsp, rbp; pop rbp; ret - OP_CALL = 0x90666666d0ff5f58, // pop rax; pop rdi; call rax + OP_CALL = 0x90d0ffe587485f58, // pop rax; pop rdi; xchg rsp, rbp; call rax + OP_RELO = 0x9090666666e58748, // xchg rsp, rbp OP_PUSH = 0x0000000068906666, // push strict dword 0 OP_HIGH = 0x00000000042444c7, // mov [rsp + 4], strict dword 0 OP_DROP = 0x9066666608c48348, // add rsp, 8 @@ -75,6 +76,7 @@ static void rt_print_hex(value val) { #define JIT_CALL(p, fn) { \ JIT_PUSH(p, fn); \ *p++ = OP_CALL; \ + *p++ = OP_RELO; \ } int main() { |