Remove stack inversion code for sysv64 FFI.

CHANGELOG.md

@@ -1,15 +1,18 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
+## 1.24.1 - ???
+- Fix FFI bug on Linux/Posix
+
 ## 1.24.0 - 2022-08-14
 - Add FFI support to 64-bit windows compiled with MSVC
 - Don't process shared object names passed to dlopen.
-- Add better support for windows console in the default shell.c for autocompletion and
+- Add better support for windows console in the default shell.c for auto-completion and
   other shell-like input features.
 - Improve default error message from `assert`.
 - Add the `tabseq` macro for simpler table comprehensions.
 - Allow setting `(dyn :task-id)` in fibers to improve context in supervisor messages. Prior to
-  this change, supverisor messages over threaded channels would be from ambiguous threads/fibers.
+  this change, supervisor messages over threaded channels would be from ambiguous threads/fibers.
 
 ## 1.23.0 - 2022-06-20
 - Add experimental `ffi/` module for interfacing with dynamic libraries and raw function pointers. Only available

src/core/ffi.c

@@ -799,15 +799,6 @@ JANET_CORE_FN(cfun_ffi_signature,
                     }
                 }
             }
-
-            /* Invert stack */
-            for (uint32_t i = 0; i < arg_count; i++) {
-                if (mappings[i].spec == JANET_SYSV64_MEMORY) {
-                    uint32_t old_offset = mappings[i].offset;
-                    size_t el_size = type_size(mappings[i].type);
-                    mappings[i].offset = stack_count - ((el_size + 7) / 8) - old_offset;
-                }
-            }
         }
         break;
 #endif