SOURCES: ghostscript-gpl-fix-gc.patch (NEW) - ppc segfault remedy
freetz
freetz at pld-linux.org
Wed Feb 22 17:38:57 CET 2006
Author: freetz Date: Wed Feb 22 16:38:57 2006 GMT
Module: SOURCES Tag: HEAD
---- Log message:
- ppc segfault remedy
---- Files affected:
SOURCES:
ghostscript-gpl-fix-gc.patch (NONE -> 1.1) (NEW)
---- Diffs:
================================================================
Index: SOURCES/ghostscript-gpl-fix-gc.patch
diff -u /dev/null SOURCES/ghostscript-gpl-fix-gc.patch:1.1
--- /dev/null Wed Feb 22 17:38:57 2006
+++ SOURCES/ghostscript-gpl-fix-gc.patch Wed Feb 22 17:38:52 2006
@@ -0,0 +1,145 @@
+Index: gs/src/gxalloc.h
+===================================================================
+RCS file: /cvs/ghostscript/gs/src/gxalloc.h,v
+retrieving revision 1.11
+diff -b -u -r1.11 gxalloc.h
+--- gs/src/gxalloc.h 4 Aug 2004 19:36:12 -0000 1.11
++++ gs/src/gxalloc.h 14 Sep 2004 21:44:37 -0000
+@@ -143,7 +143,7 @@
+ byte *cbot; /* bottom of free area */
+ /* (top of aligned objects) */
+ obj_header_t *rcur; /* current refs object, 0 if none */
+- byte *rtop; /* top of rcur */
++ byte *rtop; /* top of rcur, not aligned to obj_align_mod */
+ byte *ctop; /* top of free area */
+ /* (bottom of strings) */
+ byte *climit; /* top of strings */
+Index: gs/src/gxobj.h
+===================================================================
+RCS file: /cvs/ghostscript/gs/src/gxobj.h,v
+retrieving revision 1.6
+diff -b -u -r1.6 gxobj.h
+--- gs/src/gxobj.h 21 Feb 2002 22:24:53 -0000 1.6
++++ gs/src/gxobj.h 14 Sep 2004 21:44:37 -0000
+@@ -110,20 +110,22 @@
+ /* The only possible values for obj_align_mod are 4, 8, or 16.... */
+ #if obj_align_mod == 4
+ # define log2_obj_align_mod 2
+-#else
+-#if obj_align_mod == 8
++#elif obj_align_mod == 8
+ # define log2_obj_align_mod 3
+-#else
+-#if obj_align_mod == 16
++#elif obj_align_mod == 16
+ # define log2_obj_align_mod 4
+-#endif
+-#endif
++#elif obj_align_mod == 32 /* for testing, not seen yet in the wild */
++# define log2_obj_align_mod 5
++#else
++# error Unexpected value of obj_align_mod
+ #endif
+ #define obj_align_mask (obj_align_mod-1)
+ #define obj_align_round(siz)\
+ (uint)(((siz) + obj_align_mask) & -obj_align_mod)
+ #define obj_size_round(siz)\
+ obj_align_round((siz) + sizeof(obj_header_t))
++#define ptr_align_round(p)\
++ ((byte *)obj_align_round((size_t)(p)))
+
+ /* Define the real object header type, taking alignment into account. */
+ struct obj_header_s { /* must be a struct because of forward reference */
+Index: gs/src/ialloc.c
+===================================================================
+RCS file: /cvs/ghostscript/gs/src/ialloc.c,v
+retrieving revision 1.7
+diff -b -u -r1.7 ialloc.c
+--- gs/src/ialloc.c 4 Aug 2004 19:36:12 -0000 1.7
++++ gs/src/ialloc.c 14 Sep 2004 21:44:37 -0000
+@@ -157,8 +157,8 @@
+
+ /* If we're allocating a run of refs already, */
+ /* and we aren't about to overflow the maximum run length, use it. */
+- if (mem->cc.rtop == mem->cc.cbot &&
+- num_refs < (mem->cc.ctop - mem->cc.cbot) / sizeof(ref) &&
++ if (ptr_align_round(mem->cc.rtop) == mem->cc.cbot &&
++ num_refs < (mem->cc.ctop - mem->cc.rtop) / sizeof(ref) &&
+ mem->cc.rtop - (byte *) mem->cc.rcur + num_refs * sizeof(ref) <
+ max_size_st_refs
+ ) {
+@@ -169,8 +169,8 @@
+ ialloc_trace_space(mem), client_name_string(cname),
+ num_refs, (ulong) obj);
+ mem->cc.rcur[-1].o_size += num_refs * sizeof(ref);
+- end = (ref *) (mem->cc.rtop = mem->cc.cbot +=
+- num_refs * sizeof(ref));
++ end = (ref *) (mem->cc.rtop += num_refs * sizeof(ref));
++ mem->cc.cbot = ptr_align_round(mem->cc.rtop);
+ make_mark(end - 1);
+ } else {
+ /*
+@@ -225,12 +225,12 @@
+ return_error(e_Fatal);
+ diff = old_num_refs - new_num_refs;
+ /* Check for LIFO. See gs_free_ref_array for more details. */
+- if (mem->cc.rtop == mem->cc.cbot &&
++ if (ptr_align_round(mem->cc.rtop) == mem->cc.cbot &&
+ (byte *) (obj + (old_num_refs + 1)) == mem->cc.rtop
+ ) {
+ /* Shorten the refs object. */
+- ref *end = (ref *) (mem->cc.cbot = mem->cc.rtop -=
+- diff * sizeof(ref));
++ ref *end = (ref *) (mem->cc.rtop -= diff * sizeof(ref));
++ mem->cc.cbot = ptr_align_round(mem->cc.rtop);
+
+ if_debug4('A', "[a%d:<$ ]%s(%u) 0x%lx\n",
+ ialloc_trace_space(mem), client_name_string(cname), diff,
+@@ -264,7 +264,7 @@
+ */
+ if (!r_has_type(parr, t_array))
+ DO_NOTHING; /* don't look for special cases */
+- else if (mem->cc.rtop == mem->cc.cbot &&
++ else if (ptr_align_round(mem->cc.rtop) == mem->cc.cbot &&
+ (byte *) (obj + (num_refs + 1)) == mem->cc.rtop
+ ) {
+ if ((obj_header_t *) obj == mem->cc.rcur) {
+@@ -278,7 +278,8 @@
+ ialloc_trace_space(mem), client_name_string(cname),
+ num_refs, (ulong) obj);
+ mem->cc.rcur[-1].o_size -= num_refs * sizeof(ref);
+- mem->cc.rtop = mem->cc.cbot = (byte *) (obj + 1);
++ mem->cc.rtop = (byte *) (obj + 1);
++ mem->cc.cbot = ptr_align_round(mem->cc.rtop);
+ make_mark(obj);
+ }
+ return;
+Index: gs/src/igcref.c
+===================================================================
+RCS file: /cvs/ghostscript/gs/src/igcref.c,v
+retrieving revision 1.6
+diff -b -u -r1.6 igcref.c
+--- gs/src/igcref.c 4 Aug 2004 19:36:12 -0000 1.6
++++ gs/src/igcref.c 14 Sep 2004 21:44:37 -0000
+@@ -720,15 +720,18 @@
+ new_size += sizeof(ref_packed);
+ /* We want to make the newly freed space into a free block, */
+ /* but we can only do this if we have enough room. */
+- if (size - new_size < sizeof(obj_header_t)) { /* Not enough room. Pad to original size. */
++ if (size < obj_align_round(new_size) + sizeof(obj_header_t)) { /* Not enough room. Pad to original size. */
+ while (new_size < size)
+ *dest++ = pt_tag(pt_integer),
+ new_size += sizeof(ref_packed);
+ } else {
+- obj_header_t *pfree = (obj_header_t *) ((ref *) dest + 1);
++ byte *pfree_u = (byte *)dest + sizeof(ref);
++ byte *pfree_a = ptr_align_round(pfree_u);
++ obj_header_t *pfree = (obj_header_t *)pfree_a;
++ int align = pfree_a - pfree_u;
+
+ pfree->o_alone = 0;
+- pfree->o_size = size - new_size - sizeof(obj_header_t);
++ pfree->o_size = size - new_size - sizeof(obj_header_t) - align;
+ pfree->o_type = &st_bytes;
+ }
+ /* Re-create the final ref. */
================================================================
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