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| author | Rongcui Dong <rongcuid@outlook.com> | 2024-05-11 17:56:00 -0400 |
|---|---|---|
| committer | Christophe Rhodes <csr21@cantab.net> | 2024-05-20 17:25:37 +0100 |
| commit | e2b4c1018041a23e38b0d504145b30d5928472d4 (patch) | |
| tree | 27c04706f1a59b84d8f985386c0462dc92f15353 | |
| parent | 5cd67d8c5df7b11dafc4c10a7ee0a6751c28da10 (diff) | |
Bugfix #313202 milestone 1.
- Raise error when attempting to define alien routines that pass/return
struct by value
| -rw-r--r-- | src/code/c-call.lisp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/code/c-call.lisp b/src/code/c-call.lisp index d5a114cf7..ddc9a158d 100644 --- a/src/code/c-call.lisp +++ b/src/code/c-call.lisp @@ -135,3 +135,14 @@ (simple-string (string-to-c-string ,value (c-string-external-format ,type))))))) +;;;; Struct Support (or the lack thereof) +;; NOTE: RECORD follows the hierarchy of RECORD -> MEM-BLOCK -> ALIEN-VALUE -> SAP. +;; All platforms have passing SAP defined, which causes passing record by value +;; to silently corrupt. +;; -- Rongcui +(define-alien-type-method (record :arg-tn) (type state) + (declare (ignore type state)) + (error "Passing structs by value is unsupported on this platform.")) +(define-alien-type-method (record :result-tn) (type state) + (declare (ignore type state)) + (error "Returning structs by value is unsupported on this platform.")) |