diff options
| author | Graydon Hoare <[email protected]> | 2010-11-14 13:41:10 -0800 |
|---|---|---|
| committer | Graydon Hoare <[email protected]> | 2010-11-14 13:41:10 -0800 |
| commit | a352efadad7271798848c6ef4a22d8de7c8eba3a (patch) | |
| tree | 13e38ac987a13c1b5cf27d1c949275af68808c36 /src/comp/back | |
| parent | Remove outptr from module-internal calls; use standard ABI returns. (diff) | |
| download | rust-a352efadad7271798848c6ef4a22d8de7c8eba3a.tar.xz rust-a352efadad7271798848c6ef4a22d8de7c8eba3a.zip | |
Switch upcall glues to fastcall as well.
Diffstat (limited to 'src/comp/back')
| -rw-r--r-- | src/comp/back/x86.rs | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/src/comp/back/x86.rs b/src/comp/back/x86.rs index 961624f3..a2a8d5cc 100644 --- a/src/comp/back/x86.rs +++ b/src/comp/back/x86.rs @@ -70,16 +70,18 @@ fn upcall_glue(int n_args) -> vec[str] { /* * 0, 4, 8, 12 are callee-saves * 16 is retpc - * 20 is taskptr - * 24 is callee - * 28 .. (7+i) * 4 are args + * 20 .. (5+i) * 4 are args + * + * ecx is taskptr + * edx is callee + * */ fn copy_arg(uint i) -> str { - auto src_off = wstr(7 + (i as int)); + auto src_off = wstr(5 + (i as int)); auto dst_off = wstr(1 + (i as int)); - auto m = vec("movl " + src_off + "(%ebp),%edx", - "movl %edx," + dst_off + "(%esp)"); + auto m = vec("movl " + src_off + "(%ebp),%eax", + "movl %eax," + dst_off + "(%esp)"); ret _str.connect(m, "\n\t"); } @@ -88,8 +90,7 @@ fn upcall_glue(int n_args) -> vec[str] { ret save_callee_saves() - + vec("movl %esp, %ebp # ebp = rust_sp", - "movl 20(%esp), %ecx # ecx = rust_task") + + vec("movl %esp, %ebp # ebp = rust_sp") + store_esp_to_rust_sp() + load_esp_from_runtime_sp() @@ -100,9 +101,9 @@ fn upcall_glue(int n_args) -> vec[str] { + _vec.init_fn[str](carg, n_args as uint) - + vec("movl 24(%ebp), %edx # edx = callee", + + vec("movl %ecx, %edi # save task from ecx to edi", "call *%edx # call *%edx", - "movl 20(%ebp), %ecx # edx = rust_task") + "movl %edi, %ecx # restore edi-saved task to ecx") + load_esp_from_rust_sp() + restore_callee_saves() |