diff options
Diffstat (limited to 'src/rt')
| -rw-r--r-- | src/rt/arch/x86_64/ccall.S | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/rt/arch/x86_64/ccall.S b/src/rt/arch/x86_64/ccall.S index d9221067175..7a69aecedbf 100644 --- a/src/rt/arch/x86_64/ccall.S +++ b/src/rt/arch/x86_64/ccall.S @@ -56,3 +56,19 @@ upcall_call_c_stack_float: pop %rbp ret +#if defined(__APPLE__) || defined(_WIN32) +.globl _upcall_call_c_stack_shim +_upcall_call_c_stack_shim: +#else +.globl upcall_call_c_stack_shim +upcall_call_c_stack_shim +#endif + push %rbp + mov %rsp,%rbp // save rsp + mov ARG1,%rsp // switch stack + mov ARG0,%r11 // Remember target address + mov ARG1,ARG0 // setup the parameter shim expects + call *%r11 + mov %rbp,%rsp + pop %rbp + ret |