[Mesa-dev] [Bug 60121] build - libvdpau_softpipe fails at runtime.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=60121

--- Comment #2 from Andy Furniss <lists at andyfurniss.entadsl.com> ---
(In reply to comment #1)
> Try running under strace to see what's going wrong.

Below is what happens - I don't know why - it opens /usr/lib/vdpau OK but then
there are a bunch of fails and it ends up trying /lib and /usr/lib.

open("/usr/lib/vdpau/libvdpau_softpipe.so.1", O_RDONLY|O_CLOEXEC) = 6
read(6,
"\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200\350\32\0\0\0\0\0"..., 832)
= 832
fstat(6, {st_mode=S_IFREG|0755, st_size=31041050, ...}) = 0
mmap(NULL, 24122432, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 6, 0) =
0x7fc6e4b34000
mprotect(0x7fc6e5cef000, 2093056, PROT_NONE) = 0
mmap(0x7fc6e5eee000, 475136, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 6, 0x11ba000) = 0x7fc6e5eee000
mmap(0x7fc6e5f62000, 2962496, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fc6e5f62000
close(6)                                = 0
open("/usr/lib/../lib/tls/x86_64/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1
ENOENT (No such file or directory)
stat("/usr/lib/../lib/tls/x86_64", 0x7fff67a3fd10) = -1 ENOENT (No such file or
directory)
open("/usr/lib/../lib/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No
such file or directory)
stat("/usr/lib/../lib/tls", 0x7fff67a3fd10) = -1 ENOENT (No such file or
directory)
open("/usr/lib/../lib/x86_64/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT
(No such file or directory)
stat("/usr/lib/../lib/x86_64", 0x7fff67a3fd10) = -1 ENOENT (No such file or
directory)
open("/usr/lib/../lib/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = 6
read(6,
"\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360\221\5\0\0\0\0\0"..., 832) =
832
fstat(6, {st_mode=S_IFREG|0755, st_size=5730036, ...}) = 0
mmap(NULL, 3134384, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 6, 0) =
0x7fc6e4836000
mprotect(0x7fc6e4916000, 2093056, PROT_NONE) = 0
mmap(0x7fc6e4b15000, 40960, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 6, 0xdf000) = 0x7fc6e4b15000
mmap(0x7fc6e4b1f000, 82864, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fc6e4b1f000
close(6)                                = 0
open("/usr/lib/../lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = 6
read(6, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20(\0\0\0\0\0\0"...,
832) = 832
fstat(6, {st_mode=S_IFREG|0644, st_size=486560, ...}) = 0
mmap(NULL, 2182520, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 6, 0) =
0x7fc6e4621000
mprotect(0x7fc6e4636000, 2093056, PROT_NONE) = 0
mmap(0x7fc6e4835000, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 6, 0x14000) = 0x7fc6e4835000
close(6)                                = 0
mprotect(0x7fc6e4b15000, 32768, PROT_READ) = 0
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 6
fstat(6, {st_mode=S_IFREG|0644, st_size=43792, ...}) = 0
mmap(NULL, 43792, PROT_READ, MAP_PRIVATE, 6, 0) = 0x7fc6eda39000
close(6)                                = 0
open("/lib/libvdpau_softpipe.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file
or directory)
open("/usr/lib/libvdpau_softpipe.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such
file or directory)
munmap(0x7fc6eda39000, 43792)           = 0
write(2, "Failed to open VDPAU backend lib"..., 109Failed to open VDPAU backend
libvdpau_softpipe.so: cannot open shared object file: No such file or directory

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