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authorDamien George <damien.p.george@gmail.com>2017-09-06 13:40:51 +1000
committerDamien George <damien.p.george@gmail.com>2017-09-06 13:40:51 +1000
commit01dd7804b87d60b2deab16712eccb3b97351a9b7 (patch)
tree1aa21f38a872b8e62a3d4e4f74f68033c6f827e4 /unix/gccollect.c
parenta9862b30068fc9df1022f08019fb35aaa5085f64 (diff)
ports: Make new ports/ sub-directory and move all ports there.
This is to keep the top-level directory clean, to make it clear what is core and what is a port, and to allow the repository to grow with new ports in a sustainable way.
Diffstat (limited to 'unix/gccollect.c')
-rw-r--r--unix/gccollect.c179
1 files changed, 0 insertions, 179 deletions
diff --git a/unix/gccollect.c b/unix/gccollect.c
deleted file mode 100644
index 02f6fc91a..000000000
--- a/unix/gccollect.c
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2013, 2014 Damien P. George
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include <stdio.h>
-
-#include "py/mpstate.h"
-#include "py/gc.h"
-
-#if MICROPY_ENABLE_GC
-
-// Even if we have specific support for an architecture, it is
-// possible to force use of setjmp-based implementation.
-#if !MICROPY_GCREGS_SETJMP
-
-// We capture here callee-save registers, i.e. ones which may contain
-// interesting values held there by our callers. It doesn't make sense
-// to capture caller-saved registers, because they, well, put on the
-// stack already by the caller.
-#if defined(__x86_64__)
-typedef mp_uint_t regs_t[6];
-
-STATIC void gc_helper_get_regs(regs_t arr) {
- register long rbx asm ("rbx");
- register long rbp asm ("rbp");
- register long r12 asm ("r12");
- register long r13 asm ("r13");
- register long r14 asm ("r14");
- register long r15 asm ("r15");
-#ifdef __clang__
- // TODO:
- // This is dirty workaround for Clang. It tries to get around
- // uncompliant (wrt to GCC) behavior of handling register variables.
- // Application of this patch here is random, and done only to unbreak
- // MacOS build. Better, cross-arch ways to deal with Clang issues should
- // be found.
- asm("" : "=r"(rbx));
- asm("" : "=r"(rbp));
- asm("" : "=r"(r12));
- asm("" : "=r"(r13));
- asm("" : "=r"(r14));
- asm("" : "=r"(r15));
-#endif
- arr[0] = rbx;
- arr[1] = rbp;
- arr[2] = r12;
- arr[3] = r13;
- arr[4] = r14;
- arr[5] = r15;
-}
-
-#elif defined(__i386__)
-
-typedef mp_uint_t regs_t[4];
-
-STATIC void gc_helper_get_regs(regs_t arr) {
- register long ebx asm ("ebx");
- register long esi asm ("esi");
- register long edi asm ("edi");
- register long ebp asm ("ebp");
-#ifdef __clang__
- // TODO:
- // This is dirty workaround for Clang. It tries to get around
- // uncompliant (wrt to GCC) behavior of handling register variables.
- // Application of this patch here is random, and done only to unbreak
- // MacOS build. Better, cross-arch ways to deal with Clang issues should
- // be found.
- asm("" : "=r"(ebx));
- asm("" : "=r"(esi));
- asm("" : "=r"(edi));
- asm("" : "=r"(ebp));
-#endif
- arr[0] = ebx;
- arr[1] = esi;
- arr[2] = edi;
- arr[3] = ebp;
-}
-
-#elif defined(__thumb2__) || defined(__thumb__) || defined(__arm__)
-
-typedef mp_uint_t regs_t[10];
-
-STATIC void gc_helper_get_regs(regs_t arr) {
- register long r4 asm ("r4");
- register long r5 asm ("r5");
- register long r6 asm ("r6");
- register long r7 asm ("r7");
- register long r8 asm ("r8");
- register long r9 asm ("r9");
- register long r10 asm ("r10");
- register long r11 asm ("r11");
- register long r12 asm ("r12");
- register long r13 asm ("r13");
- arr[0] = r4;
- arr[1] = r5;
- arr[2] = r6;
- arr[3] = r7;
- arr[4] = r8;
- arr[5] = r9;
- arr[6] = r10;
- arr[7] = r11;
- arr[8] = r12;
- arr[9] = r13;
-}
-
-#else
-
-// If we don't have architecture-specific optimized support,
-// just fall back to setjmp-based implementation.
-#undef MICROPY_GCREGS_SETJMP
-#define MICROPY_GCREGS_SETJMP (1)
-
-#endif // Arch-specific selection
-#endif // !MICROPY_GCREGS_SETJMP
-
-// If MICROPY_GCREGS_SETJMP was requested explicitly, or if
-// we enabled it as a fallback above.
-#if MICROPY_GCREGS_SETJMP
-#include <setjmp.h>
-
-typedef jmp_buf regs_t;
-
-STATIC void gc_helper_get_regs(regs_t arr) {
- setjmp(arr);
-}
-
-#endif // MICROPY_GCREGS_SETJMP
-
-// this function is used by mpthreadport.c
-void gc_collect_regs_and_stack(void);
-
-void gc_collect_regs_and_stack(void) {
- regs_t regs;
- gc_helper_get_regs(regs);
- // GC stack (and regs because we captured them)
- void **regs_ptr = (void**)(void*)&regs;
- gc_collect_root(regs_ptr, ((uintptr_t)MP_STATE_THREAD(stack_top) - (uintptr_t)&regs) / sizeof(uintptr_t));
-}
-
-void gc_collect(void) {
- //gc_dump_info();
-
- gc_collect_start();
- gc_collect_regs_and_stack();
- #if MICROPY_PY_THREAD
- mp_thread_gc_others();
- #endif
- #if MICROPY_EMIT_NATIVE
- mp_unix_mark_exec();
- #endif
- gc_collect_end();
-
- //printf("-----\n");
- //gc_dump_info();
-}
-
-#endif //MICROPY_ENABLE_GC