| Summary: | segmentation fault in fc-cache 2.3.1 on ppc linux | ||
|---|---|---|---|
| Product: | fontconfig | Reporter: | Arkadiusz Miskiewicz <arekm> |
| Component: | fc-cache | Assignee: | Keith Packard <keithp> |
| Status: | RESOLVED FIXED | QA Contact: | |
| Severity: | normal | ||
| Priority: | high | CC: | julien |
| Version: | 2.3 | ||
| Hardware: | Other | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
I'm afraid your 'ugly hack' is probably the best answer for now -- I don't know why FreeType on your machine doesn't support the true type 'goto_table' function though, it certainly should. This will have the effect of eliminating some information about layout capabilities from the font database, which Pango (may) use to identify useful fonts. Set version to 2.3 By the way, fontconfig compiles fine on a PPC G4 under Mac OS X. *** Bug 3107 has been marked as a duplicate of this bug. *** We now use ftglue.c, which shouldn't be able to crash in this way, since it doesn't use a function pointer... |
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The problems is that on my PPC I'm getting: (gdb) where #0 0x00000000 in ?? () #1 0x0ffb9b80 in GetScriptTags (face=0x30066d10, tabletag=1196445523, stags=0x7fffee9c, script_count=0x7fffeea2) at fcfreetype.c:2707 #2 0x0ffb9f84 in FcFontCapabilities (face=0x30066d10) at fcfreetype.c:2795 #3 0x0ffb75a4 in FcFreeTypeQuery (file=0x303c8fe4 "/home/users/arekm/test/TTF/luxisr.ttf", id=0, blanks=0x3040aff4, count=0x7ffff028) at fcfreetype.c:1378 #4 0x0ffb52d0 in FcFileScanConfig (set=0x30186ff4, dirs=0x301c2ff0, cache=0x0, blanks=0x3040aff4, file=0x303c8fe4 "/home/users/arekm/test/TTF/luxisr.ttf", force=1, config=0x0) at fcdir.c:117 #5 0x0ffb5870 in FcDirScanConfig (set=0x30186ff4, dirs=0x301c2ff0, cache=0x0, blanks=0x3040aff4, dir=0x30091fe4 "/home/users/arekm/test/TTF", force=1, config=0x0) at fcdir.c:275 #6 0x0ffb592c in FcDirScan (set=0x30186ff4, dirs=0x301c2ff0, cache=0x0, blanks=0x3040aff4, dir=0x30091fe4 "/home/users/arekm/test/TTF", force=1) at fcdir.c:298 #7 0x10001f14 in scanDirs (list=0x3009bff8, config=0x3003cfc0, program=0x7ffff3d2 "/home/users/arekm/rpm/BUILD/fontconfig-2.3.1/fc-cache/.libs/fc-cache", force=1, verbose=0) at fc-cache.c:179 #8 0x10002378 in main (argc=3, argv=0x7ffff254) at fc-cache.c:291 (gdb) frame 1 #1 0x0ffb9b80 in GetScriptTags (face=0x30066d10, tabletag=1196445523, stags=0x7fffee9c, script_count=0x7fffeea2) at fcfreetype.c:2707 2707 if (( error = tt_face->goto_table( tt_face, tabletag, stream, 0 ) )) (gdb) l 2702 FT_Memory memory = stream->memory; 2703 2704 if ( !stream ) 2705 return TT_Err_Invalid_Face_Handle; 2706 2707 if (( error = tt_face->goto_table( tt_face, tabletag, stream, 0 ) )) 2708 return error; 2709 2710 base_offset = FT_STREAM_POS(); 2711 (gdb) print tt_face $5 = 0x30066d10 (gdb) print tt_face->goto_table $6 = 0 I've tried to reproduce the same thing on athlon machine with no luck. I'm using freetype 2.1.9. Adding ugly hack: [arekm@iarm ~/rpm/BUILD/fontconfig-2.3.1]$ diff -u src/fcfreetype.c\~ src/fcfreetype.c --- src/fcfreetype.c~ 2005-04-04 18:59:54.000000000 +0200 +++ src/fcfreetype.c 2005-04-04 19:29:22.000000000 +0200 @@ -2701,7 +2701,7 @@ FT_UShort n, p; FT_Memory memory = stream->memory; - if ( !stream ) + if ( !stream || !tt_face->goto_table ) return TT_Err_Invalid_Face_Handle; if (( error = tt_face->goto_table( tt_face, tabletag, stream, 0 ) )) made it working somehow (didn't crash). face passed to GetScriptTags was: (gdb) print *face $2 = {num_faces = 1, face_index = 0, face_flags = 569, style_flags = 0, num_glyphs = 391, family_name = 0x30072ff4 "Luxi Sans", style_name = 0x30076ff8 "Regular", num_fixed_sizes = 0, available_sizes = 0x0, num_charmaps = 2, charmaps = 0x3040eff8, generic = {data = 0x0, finalizer = 0}, bbox = {xMin = -441, yMin = -432, xMax = 2024, yMax = 2033}, units_per_EM = 2048, ascender = 2033, descender = -432, height = 2465, max_advance_width = 2079, max_advance_height = 2465, underline_position = 0, underline_thickness = 0, glyph = 0x30412f60, size = 0x30418ec0, charmap = 0x3040cfc4, driver = 0x302a6fb4, memory = 0x301fdff0, stream = 0x30064fd8, sizes_list = {head = 0x3041aff4, tail = 0x3041aff4}, autohint = {data = 0x0, finalizer = 0}, extensions = 0x0, internal = 0x30068fcc} ps. fontconfig bugzilla component lacks latest releases (you can't choose 2.3.1 as version)