[Progress] Re: Bonaire XTX [Radeon R7 260X] - no Chromium, Firefox or FreeCAD
Romick
yellowrabbit2010 at gmail.com
Sun Dec 1 14:14:13 PST 2019
Hello,
I was able to correct the situation with the crash of applications and
successfully run the test program
(https://peertube.social/videos/watch/e97a6aad-731a-4e8c-a6da-e3f0d92f888e),
KiCad, FreeCAD and Chromium.
(https://peertube.social/videos/watch/b44e75a5-9929-4cf4-8551-5a4396c92eae)
Hardware acceleration was enabled by reverting commit
e8de9e94be61d3d50fc134bbde36c014f25a6a56.
The problem is this: the driver compiles the source text of the shaders with
the help of llvm, which as a result produces a buffer in the elf format.
Further, to load the shader into the GPU, the driver parses this buffer using
the elf_* (elf_memory, elf_version etc) family of functions from the shared
library /usr/local/lib/libelf.so (/usr/dports/devel/libelf).
For simple programs like cuberender and glxgears this works fine, even the X
server itself compiles and loads the shaders quite successfully. However, for
large programs like FreeCAD or small, but based on QT, the situation changes:
the fact is that these programs for some purpose use a shared library
/usr/lib/libexecinfo.so that contains functions with the same names, but
behaving differently (if the functions behaved identically, then there would be
no crashes and freezes).
To see how programs behave if they don’t have any confusion with the functions
of the elf_ family, I stupidly renamed all the functions in the internal libelf
library. As already mentioned, it helped --- I was able to run all the programs
I needed:)
But this is a bad and stupid way, and I am attaching the patch as an example
only. There must be another way to make internal functions invisible to user
space, maybe a compilation parameter or something.
P.S. I wonder if we have other internal libraries that have visible functions
with the same names as the functions from libraries from the ports. This kind
of error is very hard to find (for me at least).
==========
readelf -s /usr/lib/libexecinfo.so.1
Symbol table '.dynsym' contains 132 entries:
Num: Value Size Type Bind Vis Ndx Name
35: 00000000000073b0 73 FUNC GLOBAL DEFAULT 11 _libelf_getshdr
36: 0000000000004fc6 60 FUNC GLOBAL DEFAULT 11 elf_version
37: 0000000000015b33 149 FUNC GLOBAL DEFAULT 11 __register_frame_info_bas
38: 000000000001209a 8 FUNC GLOBAL DEFAULT 11 _Unwind_SetIP
39: 0000000000014134 414 FUNC GLOBAL DEFAULT 11 _Unwind_ForcedUnwind
40: 0000000000004777 135 FUNC GLOBAL DEFAULT 11 elf_flagelf
41: 0000000000006b09 1222 FUNC GLOBAL DEFAULT 11 _libelf_ehdr
42: 0000000000004577 370 FUNC GLOBAL DEFAULT 11 elf_rawdata
43: 000000000000490f 14 FUNC GLOBAL DEFAULT 11 elf_flagshdr
44: 00000000000050a9 214 FUNC GLOBAL DEFAULT 11 gelf_getshdr
45: 0000000000003b39 665 FUNC GLOBAL DEFAULT 11 symtab_create
46: 0000000000005684 224 FUNC GLOBAL DEFAULT 11 _libelf_allocate_elf
47: 000000000000643a 738 FUNC GLOBAL DEFAULT 11 _libelf_ar_get_translated
48: 000000000000502e 85 FUNC GLOBAL DEFAULT 11 gelf_fsize
49: 000000000001207a 8 FUNC GLOBAL DEFAULT 11 _Unwind_GetIP
50: 0000000000004dbe 66 FUNC GLOBAL DEFAULT 11 elf_nextscn
51: 0000000000005d95 328 FUNC GLOBAL DEFAULT 11 _libelf_ar_open_member
52: 0000000000012022 8 FUNC GLOBAL DEFAULT 11 _Unwind_GetCFA
53: 0000000000013d35 269 FUNC GLOBAL DEFAULT 11 __frame_state_for
54: 0000000000015c87 24 FUNC GLOBAL DEFAULT 11 __register_frame_info_tab
55: 0000000000006fcf 993 FUNC GLOBAL DEFAULT 11 _libelf_open_object
56: 0000000000005b19 636 FUNC GLOBAL DEFAULT 11 _libelf_ar_gethdr
57: 00000000000048c8 71 FUNC GLOBAL DEFAULT 11 elf_flagscn
58: 0000000000015bc8 24 FUNC GLOBAL DEFAULT 11 __register_frame_info
59: 000000000000746f 152 FUNC GLOBAL DEFAULT 11 _libelf_msize
60: 00000000000058a9 46 FUNC GLOBAL DEFAULT 11 _libelf_allocate_data
61: 00000000000069b5 340 FUNC GLOBAL DEFAULT 11 _libelf_xlate_shtype
62: 00000000000047fe 101 FUNC GLOBAL DEFAULT 11 elf_flagehdr
63: 00000000000058fb 140 FUNC GLOBAL DEFAULT 11 _libelf_allocate_scn
64: 0000000000011a44 81 FUNC GLOBAL DEFAULT 11 elf_hash
65: 000000000001bda0 0 NOTYPE GLOBAL DEFAULT ABS _edata
66: 00000000000040ac 964 FUNC GLOBAL DEFAULT 11 elf_getdata
67: 0000000000003ab7 21 FUNC GLOBAL DEFAULT 11 backtrace_symbols
68: 00000000000073f9 118 FUNC GLOBAL DEFAULT 11 _libelf_fsize
69: 000000000001202a 80 FUNC GLOBAL DEFAULT 11 _Unwind_SetGR
70: 0000000000005018 22 FUNC GLOBAL DEFAULT 11 elf64_fsize
71: 0000000000005083 19 FUNC GLOBAL DEFAULT 11 elf32_getshdr
72: 0000000000012082 24 FUNC GLOBAL DEFAULT 11 _Unwind_GetIPInfo
73: 0000000000004c7a 30 FUNC GLOBAL DEFAULT 11 elf_ndxscn
74: 0000000000006113 616 FUNC GLOBAL DEFAULT 11 _libelf_ar_process_svr4_s
75: 00000000000120b2 31 FUNC GLOBAL DEFAULT 11 _Unwind_FindEnclosingFunc
76: 00000000000034b7 79 FUNC GLOBAL DEFAULT 11 backtrace
77: 000000000000400b 140 FUNC GLOBAL DEFAULT 11 elf_errmsg
78: 00000000000058d7 36 FUNC GLOBAL DEFAULT 11 _libelf_release_data
79: 0000000000002de8 0 FUNC GLOBAL DEFAULT 9 _init
80: 000000000001604c 0 FUNC GLOBAL DEFAULT 12 _fini
81: 0000000000015c9f 27 FUNC GLOBAL DEFAULT 11 __register_frame_table
82: 0000000000005002 22 FUNC GLOBAL DEFAULT 11 elf32_fsize
83: 0000000000014615 29 FUNC GLOBAL DEFAULT 11 _Unwind_DeleteException
84: 0000000000015be0 33 FUNC GLOBAL DEFAULT 11 __register_frame
85: 00000000000046e9 71 FUNC GLOBAL DEFAULT 11 elf_flagarhdr
86: 0000000000004730 71 FUNC GLOBAL DEFAULT 11 elf_flagdata
87: 0000000000011fda 72 FUNC GLOBAL DEFAULT 11 _Unwind_GetGR
88: 000000000001bda0 0 NOTYPE GLOBAL DEFAULT ABS __bss_start
89: 0000000000014632 138 FUNC GLOBAL DEFAULT 11 _Unwind_Backtrace
90: 0000000000003e43 192 FUNC GLOBAL DEFAULT 11 elf_begin
91: 00000000000120d9 8 FUNC GLOBAL DEFAULT 11 _Unwind_GetTextRelBase
92: 000000000000517f 485 FUNC GLOBAL DEFAULT 11 gelf_update_shdr
93: 0000000000015c01 134 FUNC GLOBAL DEFAULT 11 __register_frame_info_tab
94: 0000000000005364 376 FUNC GLOBAL DEFAULT 11 gelf_getsym
95: 0000000000011ae0 345 FUNC GLOBAL DEFAULT 11 _libelf_memory
96: 000000000001bfc0 0 NOTYPE GLOBAL DEFAULT ABS _end
97: 00000000000054dc 424 FUNC GLOBAL DEFAULT 11 gelf_update_sym
98: 0000000000004863 101 FUNC GLOBAL DEFAULT 11 elf_flagphdr
99: 0000000000005edd 566 FUNC GLOBAL DEFAULT 11 _libelf_ar_process_bsd_sy
100: 0000000000003dd2 113 FUNC GLOBAL DEFAULT 11 symtab_find
101: 000000000000491d 699 FUNC GLOBAL DEFAULT 11 _libelf_load_section_head
102: 0000000000003ae9 80 FUNC GLOBAL DEFAULT 11 symtab_destroy
103: 0000000000006765 592 FUNC GLOBAL DEFAULT 11 _libelf_ar_open
104: 0000000000011a95 75 FUNC GLOBAL DEFAULT 11 elf_memory
105: 00000000000057d0 217 FUNC GLOBAL DEFAULT 11 _libelf_release_elf
106: 0000000000003692 951 FUNC GLOBAL DEFAULT 11 backtrace_symbols_fmt
107: 0000000000004e00 454 FUNC GLOBAL DEFAULT 11 elf_strptr
108: 000000000000671c 73 FUNC GLOBAL DEFAULT 11 _libelf_ar_get_raw_name
109: 00000000000120aa 8 FUNC GLOBAL DEFAULT 11 _Unwind_GetRegionStart
110: 0000000000003a49 110 FUNC GLOBAL DEFAULT 11 backtrace_symbols_fd_fmt
111: 000000000001b8e0 280 OBJECT GLOBAL DEFAULT 19 _libelf
112: 000000000001197c 200 FUNC GLOBAL DEFAULT 11 _libelf_get_translator
113: 0000000000004bd8 162 FUNC GLOBAL DEFAULT 11 elf_getscn
114: 000000000000637b 191 FUNC GLOBAL DEFAULT 11 _libelf_ar_get_number
115: 0000000000003acc 21 FUNC GLOBAL DEFAULT 11 backtrace_symbols_fd
116: 0000000000015de4 28 FUNC GLOBAL DEFAULT 11 __deregister_frame
117: 0000000000015e00 534 FUNC GLOBAL DEFAULT 11 _Unwind_Find_FDE
118: 00000000000120d1 8 FUNC GLOBAL DEFAULT 11 _Unwind_GetDataRelBase
119: 0000000000015cba 284 FUNC GLOBAL DEFAULT 11 __deregister_frame_info_b
120: 0000000000005096 19 FUNC GLOBAL DEFAULT 11 elf64_getshdr
121: 00000000000120a2 8 FUNC GLOBAL DEFAULT 11 _Unwind_GetLanguageSpecif
122: 0000000000013e43 753 FUNC GLOBAL DEFAULT 11 _Unwind_RaiseException
123: 0000000000004c98 294 FUNC GLOBAL DEFAULT 11 elf_newscn
124: 0000000000014470 421 FUNC GLOBAL DEFAULT 11 _Unwind_Resume_or_Rethrow
125: 0000000000005987 402 FUNC GLOBAL DEFAULT 11 _libelf_release_scn
126: 0000000000005764 108 FUNC GLOBAL DEFAULT 11 _libelf_init_elf
127: 00000000000142d2 414 FUNC GLOBAL DEFAULT 11 _Unwind_Resume
128: 0000000000003f03 264 FUNC GLOBAL DEFAULT 11 elf_end
129: 0000000000004470 263 FUNC GLOBAL DEFAULT 11 elf_newdata
130: 0000000000015dd6 14 FUNC GLOBAL DEFAULT 11 __deregister_frame_info
131: 0000000000004097 21 FUNC GLOBAL DEFAULT 11 elf_errno
==========
--
with best regards,
Yellow Rabbit @yrabbit at mastodon.sdf.org
DragonFly 5.5-DEVELOPMENT x86_64
-------------- next part --------------
A non-text attachment was scrubbed...
Name: IMG_20191202_072951_HDR-min.jpg
Type: image/jpeg
Size: 1415840 bytes
Desc: not available
URL: <http://lists.dragonflybsd.org/pipermail/users/attachments/20191202/37f4af34/attachment-0004.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: IMG_20191202_072907_HDR-min.jpg
Type: image/jpeg
Size: 1044858 bytes
Desc: not available
URL: <http://lists.dragonflybsd.org/pipermail/users/attachments/20191202/37f4af34/attachment-0005.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: libelf.patch
Type: text/x-diff
Size: 119167 bytes
Desc: not available
URL: <http://lists.dragonflybsd.org/pipermail/users/attachments/20191202/37f4af34/attachment-0002.bin>
More information about the Users
mailing list