1 files changed, 0 insertions, 112 deletions
diff --git a/dev-lang/polyml/files/polyml-5.5.2-r1954_Fix_segfault_in_FFI_when_malloc_runs_out_of_memory.patch b/dev-lang/polyml/files/polyml-5.5.2-r1954_Fix_segfault_in_FFI_when_malloc_runs_out_of_memory.patch
deleted file mode 100644
index 783577026f67..000000000000
--- a/dev-lang/polyml/files/polyml-5.5.2-r1954_Fix_segfault_in_FFI_when_malloc_runs_out_of_memory.patch
+++ /dev/null
@@ -1,112 +0,0 @@
-Index: polyml/libpolyml/foreign.cpp
-===================================================================
---- polyml/libpolyml/foreign.cpp	(revision 1953)
-+++ polyml/libpolyml/foreign.cpp	(revision 1954)
-@@ -4,7 +4,7 @@
- 
-     Copyright (c) 2000-7
-         Cambridge University Technical Services Limited
--    Further development Copyright David C.J. Matthews 2008-2011.
-+    Further development Copyright David C.J. Matthews 2008-2014.
- 
-     This library is free software; you can redistribute it and/or
-     modify it under the terms of the GNU Lesser General Public
-@@ -251,6 +251,10 @@
- 
- static Volatile *vols;
- static PLock volLock; // Mutex to protect vols.
-+// TODO: There is a theoretical risk of deadlock if any ML allocation is made while this
-+// lock is held.  An allocation can result in a GC which requires all threads to release
-+// ML memory but another thread could block waiting for the mutex.
-+// N.B. raising an exception involves an allocation.
- 
- #define FIRST_VOL 0
- 
-@@ -268,24 +272,8 @@
- static unsigned callBackEntries = 0;
- static PLock callbackTableLock; // Mutex to protect table.
- 
--
- /**********************************************************************
-  *
-- *  Malloc / Free Wrappers
-- *   
-- **********************************************************************/
--
--static POLYUNSIGNED malloc_count = 0;
--#if 0
--#define Vmalloc(where,size) {where = malloc(size); printf("malloc: %p,%d\n",where,size); fflush(stdout); malloc_count++;}
--#else
--#define Vmalloc(where,size) {where = malloc(size); malloc_count++;}
--#endif
--#define Vfree(p) { free(p);  malloc_count--;}
--
--
--/**********************************************************************
-- *
-  *  Volatile Allocation
-  *   
-  **********************************************************************/
-@@ -349,8 +337,12 @@
-     PLocker plocker(&volLock);
-     Handle res = vol_alloc(taskData);
-     trace(("size= %" POLYUFMT "\n",size));
--    Vmalloc( C_POINTER(UNVOLHANDLE(res)), size );
-+    void *p = malloc(size);
-+    if (p == 0)
-+        RAISE_EXN("Insufficient memory");
-+    C_POINTER(UNVOLHANDLE(res)) = p;
-     OWN_C_SPACE(UNVOLHANDLE(res)) = true;
-+
-     return res;
- }
- 
-@@ -685,7 +677,7 @@
-             {
-                 // Can now free this.            
-                 trace(("Freeing malloc space of <%" POLYUFMT ">\n",from));
--                Vfree(vols[from].C_pointer);
-+                free(vols[from].C_pointer);
-                 vols[from].C_pointer = 0;
-                 vols[from].Own_C_space = false;
-             }
-@@ -702,7 +694,6 @@
-         }
-     }
-     next_vol = to;
--    info(("unfreed mallocs=<%" POLYUFMT "> next_vol=<%" POLYUFMT ">\n", malloc_count, next_vol));
-     
-     /* Callback table.  Added DCJM 12/4/04.  We always process these as strong references.
-     For the time being at any rate we treat these as permanent entries so that once a
-@@ -910,8 +901,9 @@
-         RAISE_EXN("libffi error: ffi_prep_cif failed");
- 
-     // malloc memory for the result
--    void *result;
--    Vmalloc(result, result_type->size);
-+    void *result = malloc(result_type->size);
-+    if (result == 0)
-+        RAISE_EXN("Insufficient memory to allocate space for result");
- 
-     processes->ThreadReleaseMLMemory(taskData);
-     ffi_call(&cif, sym, result, arg_values);
-@@ -1580,6 +1572,9 @@
- 
-     unsigned num_args = length_list(argTypeList->Word());
-     ffi_type **arg_types = (ffi_type**)malloc(num_args * sizeof(ffi_type*));
-+    if (arg_types == 0)
-+        RAISE_EXN("Insufficient memory to allocate space for arguments");
-+
-     PolyWord p = argTypeList->Word();
-     for (POLYUNSIGNED i=0; i<num_args; i++,p=Tail(p))
-         arg_types[i] = ctypeToFfiType(taskData, Head(p));
-@@ -1587,6 +1582,9 @@
- 
-     // The cif needs to be on the heap so that it is available in the callback.
-     ffi_cif *cif = (ffi_cif *)malloc(sizeof(ffi_cif));
-+    if (cif == 0)
-+        RAISE_EXN("Insufficient memory to allocate space for cif");
-+
-     if (ffi_prep_cif(cif, abi, num_args, result_type, arg_types) != FFI_OK)
-         RAISE_EXN("libffi error: ffi_prep_cif failed");
-