diff options
| author | Paul Sokolovsky <pfalcon@users.sourceforge.net> | 2016-06-18 00:18:01 +0300 |
|---|---|---|
| committer | Paul Sokolovsky <pfalcon@users.sourceforge.net> | 2016-06-18 00:18:01 +0300 |
| commit | c9598604c6872d87b6c818c92efc4bce357d988c (patch) | |
| tree | 36f9d0f2b9858594780b9901466e171055869008 /unix/alloc.c | |
| parent | 9b43a7d1be2cf79b85d36f7f51dd9edd8d39fdda (diff) | |
unix/alloc: Add option to use uPy's alloc-exec implementation even for libffi.
When built for Linux, libffi includes very bloated and workaround exec-alloc
implementation required to work around SELinux and other "sekuritee" features
which real people don't use. MicroPython has own alloc-exec implementation,
used to alloc memory for @micropython.native code. With this option enabled,
uPy's implementation will override libffi's. This saves 11K on x86_64 (and
that accounts for more than half of the libffi code size).
TODO: Possibly, we want to refactor this option to allow either use uPy's
implementation even for libffi, or allow to use libffi's implementation even
for uPy.
Diffstat (limited to 'unix/alloc.c')
| -rw-r--r-- | unix/alloc.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/unix/alloc.c b/unix/alloc.c index a0676a0ae..72b9d2a87 100644 --- a/unix/alloc.c +++ b/unix/alloc.c @@ -33,7 +33,7 @@ #include "py/mpstate.h" #include "py/gc.h" -#if MICROPY_EMIT_NATIVE +#if MICROPY_EMIT_NATIVE || (MICROPY_PY_FFI && MICROPY_FORCE_PLAT_ALLOC_EXEC) #if defined(__OpenBSD__) || defined(__MACH__) #define MAP_ANONYMOUS MAP_ANON @@ -85,4 +85,16 @@ void mp_unix_mark_exec(void) { } } -#endif // MICROPY_EMIT_NATIVE +#if MICROPY_FORCE_PLAT_ALLOC_EXEC +void *ffi_closure_alloc(size_t size, void **code) { + mp_uint_t dummy; + mp_unix_alloc_exec(size, code, &dummy); + return *code; +} + +void ffi_closure_free(void *ptr) { + // TODO +} +#endif + +#endif // MICROPY_EMIT_NATIVE || (MICROPY_PY_FFI && MICROPY_FORCE_PLAT_ALLOC_EXEC) |