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benosteen/gist:2405590

Created April 17, 2012 12:06
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strace of hello world alsa-style on RPi
Raw
gistfile1.txt
pi@raspberrypi:/opt/vc/src/hello_pi/hello_alsa$ strace ./hello_alsa.bin plughw:0,0
execve("./hello_alsa.bin", ["./hello_alsa.bin", "plughw:0,0"], [/* 16 vars */]) = 0
brk(0) = 0xe5b000
uname({sys="Linux", node="raspberrypi", ...}) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x400dc000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=38932, ...}) = 0
mmap2(NULL, 38932, PROT_READ, MAP_PRIVATE, 3, 0) = 0x401be000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/usr/lib/libasound.so.2", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\230\375\1\0004\0\0\0"..., 512) = 512
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x401f2000
fstat64(3, {st_mode=S_IFREG|0644, st_size=793916, ...}) = 0
mmap2(NULL, 825496, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x402aa000
mprotect(0x40368000, 32768, PROT_NONE) = 0
mmap2(0x40370000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xbe) = 0x40370000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\374V\1\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1209660, ...}) = 0
mmap2(NULL, 1246468, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40374000
mprotect(0x40497000, 32768, PROT_NONE) = 0
mmap2(0x4049f000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x123) = 0x4049f000
mmap2(0x404a2000, 9476, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x404a2000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libm.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\3741\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=652912, ...}) = 0
mmap2(NULL, 684200, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x400e5000
mprotect(0x40183000, 32768, PROT_NONE) = 0
mmap2(0x4018b000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x9e) = 0x4018b000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libdl.so.2", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0$\t\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=9808, ...}) = 0
mmap2(NULL, 41136, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x4018d000
mprotect(0x4018f000, 28672, PROT_NONE) = 0
mmap2(0x40196000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0x40196000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libpthread.so.0", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0 D\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=120505, ...}) = 0
mmap2(NULL, 127508, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x4007d000
mprotect(0x40092000, 28672, PROT_NONE) = 0
mmap2(0x40099000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14) = 0x40099000
mmap2(0x4009b000, 4628, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4009b000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/librt.so.1", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\300\26\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=26632, ...}) = 0
mmap2(NULL, 57876, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40009000
mprotect(0x4000f000, 28672, PROT_NONE) = 0
mmap2(0x40016000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5) = 0x40016000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/libgcc_s.so.1", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\4-\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=47212, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4005a000
mmap2(NULL, 78548, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x4009d000
mprotect(0x400a9000, 28672, PROT_NONE) = 0
mmap2(0x400b0000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xb) = 0x400b0000
close(3) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40018000
set_tls(0x400184c0, 0x40018b97, 0x40018b98, 0x400184c0, 0x400e4000) = 0
mprotect(0x40016000, 4096, PROT_READ) = 0
mprotect(0x40099000, 4096, PROT_READ) = 0
mprotect(0x40196000, 4096, PROT_READ) = 0
mprotect(0x4018b000, 4096, PROT_READ) = 0
mprotect(0x4049f000, 8192, PROT_READ) = 0
mprotect(0x400e3000, 4096, PROT_READ) = 0
munmap(0x401be000, 38932) = 0
set_tid_address(0x40018068) = 1147
set_robust_list(0x40018070, 0xc) = 0
futex(0xbe9a6cb4, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0xbe9a6cb4, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 4009a000) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigaction(SIGRTMIN, {0x40081328, [], SA_SIGINFO|0x4000000}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x400811bc, [], SA_RESTART|SA_SIGINFO|0x4000000}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
brk(0) = 0xe5b000
brk(0xe7c000) = 0xe7c000
stat64("/usr/share/alsa/alsa.conf", {st_mode=S_IFREG|0644, st_size=8967, ...}) = 0
open("/usr/share/alsa/alsa.conf", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=8967, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40058000
read(3, "#\n# ALSA library configuration "..., 4096) = 4096
read(3, "\t}\n\t\t}\n\t}\n\t@args.DEV {\n\t\ttype in"..., 4096) = 4096
read(3, " {\n\t\t@func refer\n\t\tname defaults"..., 4096) = 775
read(3, "", 4096) = 0
read(3, "", 4096) = 0
close(3) = 0
munmap(0x40058000, 4096) = 0
futex(0x401970a0, FUTEX_WAKE_PRIVATE, 2147483647) = 0
access("/etc/asound.conf", R_OK) = -1 ENOENT (No such file or directory)
access("/home/pi/.asoundrc", R_OK) = -1 ENOENT (No such file or directory)
open("/dev/snd/controlC0", O_RDONLY|O_CLOEXEC) = 3
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
ioctl(3, UI_DEV_CREATE, 0xbe9a6318) = 0
close(3) = 0
open("/dev/snd/controlC0", O_RDWR|O_CLOEXEC) = 3
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
ioctl(3, USBDEVFS_CONTROL or USBDEVFS_CONTROL32, 0xbe9a64bc) = 0
ioctl(3, 0x40045532, 0xbe9a64cc) = 0
open("/dev/snd/pcmC0D0p", O_RDWR|O_NONBLOCK|O_CLOEXEC) = 4
fcntl64(4, F_SETFD, FD_CLOEXEC) = 0
close(3) = 0
ioctl(4, AGPIOC_ACQUIRE or APM_IOC_STANDBY, 0xbe9a6308) = 0
fcntl64(4, F_GETFL) = 0x80802 (flags O_RDWR|O_NONBLOCK|O_CLOEXEC)
ioctl(4, AGPIOC_INFO, 0xbe9a64bc) = 0
clock_gettime(CLOCK_MONOTONIC, {3767, 417828964}) = 0
ioctl(4, AGPIOC_SETUP, 0xbe9a64b4) = 0
mmap2(NULL, 4096, PROT_READ, MAP_SHARED, 4, 0x80000) = -1 ENXIO (No such device or address)
ioctl(4, 0xc0844123, 0xbe9a6428) = 0
fcntl64(4, F_GETFL) = 0x80802 (flags O_RDWR|O_NONBLOCK|O_CLOEXEC)
fcntl64(4, F_SETFL, O_RDWR|O_CLOEXEC) = 0
ioctl(4, 0xc25c4110, 0xbe9a666c) = 0
ioctl(4, 0xc25c4110, 0xbe9a6304) = 0
ioctl(4, 0xc25c4110, 0xbe9a6304) = 0
ioctl(4, 0xc25c4110, 0xbe9a5df8) = 0
ioctl(4, 0xc25c4110, 0xbe9a6304) = 0
ioctl(4, 0xc25c4110, 0xbe9a6304) = 0
ioctl(4, 0xc25c4110, 0xbe9a666c) = 0
ioctl(4, 0xc25c4110, 0xbe9a6304) = 0
ioctl(4, 0xc25c4110, 0xbe9a6304) = 0
ioctl(4, 0xc25c4110, 0xbe9a6304) = 0
ioctl(4, 0xc25c4110, 0xbe9a6304) = 0
ioctl(4, 0xc25c4110, 0xbe9a666c) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a607c) = 0
ioctl(4, 0xc25c4110, 0xbe9a607c) = 0
ioctl(4, 0xc25c4110, 0xbe9a607c) = 0
ioctl(4, 0xc25c4110, 0xbe9a607c) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a607c) = 0
ioctl(4, 0xc25c4110, 0xbe9a607c) = 0
ioctl(4, 0xc25c4110, 0xbe9a607c) = 0
ioctl(4, 0xc25c4110, 0xbe9a607c) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a607c) = 0
ioctl(4, 0xc25c4110, 0xbe9a607c) = 0
ioctl(4, 0xc25c4110, 0xbe9a607c) = 0
ioctl(4, 0xc25c4110, 0xbe9a607c) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a5edc) = 0
ioctl(4, 0xc25c4110, 0xbe9a5b74) = 0
ioctl(4, 0xc25c4110, 0xbe9a5b74) = 0
ioctl(4, 0xc25c4110, 0xbe9a5b74) = 0
ioctl(4, 0xc25c4110, 0xbe9a5edc) = 0
ioctl(4, 0xc25c4110, 0xbe9a5b74) = 0
ioctl(4, 0xc25c4110, 0xbe9a5b74) = 0
ioctl(4, 0xc25c4110, 0xbe9a5edc) = 0
ioctl(4, 0xc25c4110, 0xbe9a5edc) = 0
ioctl(4, 0xc25c4110, 0xbe9a5b74) = 0
ioctl(4, 0xc25c4110, 0xbe9a5b74) = 0
ioctl(4, 0xc25c4110, 0xbe9a5b74) = 0
ioctl(4, 0xc25c4110, 0xbe9a5b74) = 0
ioctl(4, 0xc25c4110, 0xbe9a5edc) = 0
ioctl(4, 0xc25c4110, 0xbe9a614c) = 0
ioctl(4, 0xc25c4110, 0xbe9a614c) = 0
ioctl(4, 0xc25c4110, 0xbe9a5de4) = 0
ioctl(4, 0xc25c4110, 0xbe9a5de4) = 0
ioctl(4, 0xc25c4110, 0xbe9a614c) = 0
ioctl(4, 0xc25c4110, 0xbe9a614c) = 0
ioctl(4, 0xc25c4110, 0xbe9a5de4) = 0
ioctl(4, 0xc25c4110, 0xbe9a5de4) = 0
ioctl(4, 0xc25c4110, 0xbe9a614c) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a63e4) = 0
ioctl(4, 0xc25c4110, 0xbe9a65ec) = 0
ioctl(4, 0xc25c4110, 0xbe9a65ec) = 0
ioctl(4, 0xc25c4110, 0xbe9a65ec) = 0
ioctl(4, 0xc25c4110, 0xbe9a65ec) = 0
ioctl(4, 0xc25c4110, 0xbe9a65ec) = 0
ioctl(4, 0xc25c4110, 0xbe9a65cc) = 0
ioctl(4, 0xc25c4110, 0xbe9a65cc) = 0
ioctl(4, 0xc25c4110, 0xbe9a65cc) = 0
ioctl(4, 0xc25c4110, 0xbe9a65cc) = 0
ioctl(4, 0xc25c4110, 0xbe9a65cc) = 0
ioctl(4, 0xc25c4110, 0xbe9a65cc) = 0
ioctl(4, 0xc25c4110, 0xbe9a65e0) = 0
ioctl(4, 0xc25c4110, 0xbe9a65e0) = 0
ioctl(4, 0xc25c4110, 0xbe9a65e0) = 0
ioctl(4, 0xc25c4110, 0xbe9a65e0) = 0
ioctl(4, 0xc25c4110, 0xbe9a6928) = 0
ioctl(4, 0xc25c4111, 0xbe9a6928) = 0
ioctl(4, 0xc0844123, 0xe64488) = 0
ioctl(4, 0xc0684113, 0xbe9a6558) = 0
ioctl(4, 0xc0844123, 0xe64488) = 0
ioctl(4, 0x4140, 0xe64510) = 0
ioctl(4, 0xc0844123, 0xe64488) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
Segmentation fault
pi@raspberrypi:/opt/vc/src/hello_pi/hello_alsa$
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