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authorBen Gamari <ben@smart-cactus.org>2021-07-12 20:33:16 -0400
committerMarge Bot <ben+marge-bot@smart-cactus.org>2021-07-27 04:47:51 -0400
commitf6e366c058b136f0789a42222b8189510a3693d1 (patch)
treef62d8706954e40fa6f40d3271f92ae84aeeff7cc /rts
parent0e875c3f1d7373812ddae9962edfc9538465d2ed (diff)
downloadhaskell-f6e366c058b136f0789a42222b8189510a3693d1.tar.gz
rts: Drop allocateExec and friends
All uses of these now use ExecPage.
Diffstat (limited to 'rts')
-rw-r--r--rts/RtsSymbols.c11
-rw-r--r--rts/sm/Storage.c92
2 files changed, 0 insertions, 103 deletions
diff --git a/rts/RtsSymbols.c b/rts/RtsSymbols.c
index 170655a48c..678527e328 100644
--- a/rts/RtsSymbols.c
+++ b/rts/RtsSymbols.c
@@ -548,21 +548,11 @@
#define RTS_PROF_SYMBOLS /* empty */
#endif
-#if RTS_LINKER_USE_MMAP
-#define RTS_LINKER_USE_MMAP_SYMBOLS \
- SymI_HasProto(allocateWrite) \
- SymI_HasProto(freeWrite) \
- SymI_HasProto(markExec)
-#else
-#define RTS_LINKER_USE_MMAP_SYMBOLS /* empty */
-#endif
-
#define RTS_SYMBOLS \
Maybe_Stable_Names \
RTS_TICKY_SYMBOLS \
RTS_PROF_SYMBOLS \
RTS_LIBDW_SYMBOLS \
- RTS_LINKER_USE_MMAP_SYMBOLS \
SymI_HasProto(StgReturn) \
SymI_HasProto(stg_gc_noregs) \
SymI_HasProto(stg_ret_v_info) \
@@ -1020,7 +1010,6 @@
SymI_HasProto(registerInfoProvList) \
SymI_HasProto(lookupIPE) \
RTS_USER_SIGNALS_SYMBOLS \
- RTS_LINKER_USE_MMAP_SYMBOLS \
RTS_INTCHAR_SYMBOLS
diff --git a/rts/sm/Storage.c b/rts/sm/Storage.c
index fd55570354..7d450a8931 100644
--- a/rts/sm/Storage.c
+++ b/rts/sm/Storage.c
@@ -1807,98 +1807,6 @@ void flushExec (W_ len, AdjustorExecutable exec_addr)
#endif
}
-#if RTS_LINKER_USE_MMAP
-AdjustorWritable allocateWrite(W_ bytes) {
- return mmapForLinker(bytes, PROT_READ | PROT_WRITE, MAP_ANONYMOUS, -1, 0);
-}
-
-void markExec(W_ bytes, AdjustorWritable writ) {
- mmapForLinkerMarkExecutable(writ, bytes);
-}
-
-void freeWrite(W_ bytes, AdjustorWritable writ) {
- munmap(writ, bytes);
-}
-#endif /* RTS_LINKER_USE_MMAP */
-
-#if !defined(USE_LIBFFI_FOR_ADJUSTORS)
-
-AdjustorWritable allocateExec (W_ bytes, AdjustorExecutable *exec_ret)
-{
- void *ret;
- W_ n;
-
- ACQUIRE_SM_LOCK;
-
- // round up to words.
- n = (bytes + sizeof(W_) + 1) / sizeof(W_);
-
- if (n+1 > BLOCK_SIZE_W) {
- barf("allocateExec: can't handle large objects");
- }
-
- if (exec_block == NULL ||
- exec_block->free + n + 1 > exec_block->start + BLOCK_SIZE_W) {
- bdescr *bd;
- W_ pagesize = getPageSize();
- bd = allocGroup(stg_max(1, pagesize / BLOCK_SIZE));
- debugTrace(DEBUG_gc, "allocate exec block %p", bd->start);
- bd->gen_no = 0;
- bd->flags = BF_EXEC;
- bd->link = exec_block;
- if (exec_block != NULL) {
- exec_block->u.back = bd;
- }
- bd->u.back = NULL;
- setExecutable(bd->start, bd->blocks * BLOCK_SIZE, true);
- exec_block = bd;
- }
- *(exec_block->free) = n; // store the size of this chunk
- exec_block->gen_no += n; // gen_no stores the number of words allocated
- ret = exec_block->free + 1;
- exec_block->free += n + 1;
-
- RELEASE_SM_LOCK
- *exec_ret = ret;
- return ret;
-}
-
-void freeExec (void *addr)
-{
- StgPtr p = (StgPtr)addr - 1;
- bdescr *bd = Bdescr((StgPtr)p);
-
- if ((bd->flags & BF_EXEC) == 0) {
- barf("freeExec: not executable");
- }
-
- if (*(StgPtr)p == 0) {
- barf("freeExec: already free?");
- }
-
- ACQUIRE_SM_LOCK;
-
- bd->gen_no -= *(StgPtr)p;
- *(StgPtr)p = 0;
-
- if (bd->gen_no == 0) {
- // Free the block if it is empty, but not if it is the block at
- // the head of the queue.
- if (bd != exec_block) {
- debugTrace(DEBUG_gc, "free exec block %p", bd->start);
- dbl_link_remove(bd, &exec_block);
- setExecutable(bd->start, bd->blocks * BLOCK_SIZE, false);
- freeGroup(bd);
- } else {
- bd->free = bd->start;
- }
- }
-
- RELEASE_SM_LOCK
-}
-
-#endif /* switch(HOST_OS) */
-
#if defined(DEBUG)
// handy function for use in gdb, because Bdescr() is inlined.