4 * Print attribute values in *xattr system calls on Linux.
5 * Include pread and pwrite calls in -e read and -e write tracing.
6 * Update SO_* and IP_* value lists and add IPV6_* values for socket options.
7 * Print clock_t values symbolically in Linux clock_* system calls.
11 * Bug fixes, Linux ioctl updates.
12 * David Miller contributed support for Linux/SPARC64.
20 * Update Linux ioctl lists.
21 * Update PF_* and AF_* value lists.
22 * The 4.5.3 -p behavior for NPTL threads applies only under -f, and got fixed.
27 * On Linux using NPTL threads, -p will now attach to all threads in a process.
28 * Handle new mq_* system calls in Linux 2.6.6 and later.
33 * Report some new VM_* bit values on Linux.
34 * Better output for Linux sched_* system calls.
39 * Display multiple ioctl name matches on Linux.
43 * New port to AMD's x86-64 architecture. One strace binary can
44 handle both new x86-64 and old i386 processes.
45 * Fixed support for LFS64 calls.
46 * New switch -E to add/remove environment variables for the command.
47 * Merged s390/s390x port.
48 * Trace an unbounded number of processes.
49 * Handle numerous new system calls in Linux 2.5, and new threads semantics.
50 * Fixed bugs with attach/detach leaving things stopped.
51 * Fixed traced process seeing ECHILD despite live, traced children
52 in waitpid calls with WNOHANG.
53 * Stuart Menefy contributed a port to Linux/SH.
54 * Stephen Thomas contributed a port to Linux/SH64.
55 * Many other bug fixes.
59 * Fix Linux/ia64 support, looks like someone renamed a few things on us
60 * Fix the ioctl setup for Linux, turned out it did not really work.
61 Improve the ioctl extracter as well so we decode some more ones.
65 * compile fixes for Linux/mips
69 * Linux ia64 and hppa ports added
70 * The usual Linux syscall updates (includes 32bit uid/gid support),
71 * Linux ioctl list updated
72 * Support IPv6 scope ids
73 * FreeBSD/i386 port added
74 * UnixWare and Solaris updates
75 * Better support for tracing multithreaded processes in Linux
79 * Compiles on glibc2.0 systems again
80 * Linux/S390 port added
81 * The usual Linux syscall updates
82 * we can follow fork on arm now
86 * Linux/MIPS port added
87 * Lots of Linux updates again
88 * Improved IPv6 support
94 * Compiles on glibc2.0 systems again
98 * Get stat structure properly on Linux 64bit archs
99 * Personalities work again
100 * Compile correctly on SunOS again
106 * Linux (ultra)sparc fixes
113 * add support for more Linux architectures (powerpc, sparc, arm)
114 * support lots more Linux syscalls
115 * fix signal handling
116 * add IPX and IPIP support
117 * check stray syscall after execv
118 * fix hanging children
120 Changes in version 3.1
121 ======================
124 * Linux 68k is supported
125 * Linux alpha is supported
126 * configure is upgraded to autoconf 2.x
127 * using -f in combination with -e now works correctly
128 * output can be piped to a program
129 * tracing setuid programs works better
130 * it is now reasonable to install strace setuid to root in some circumstances
131 * new useful tracing names like file and process to trace whole
132 classes of system calls, e.g. -efile traces all system calls that
133 take a file name as an argument
134 * IPC calls on SunOS 4.1.x are decoded
135 * Linux program memory is reliably dereferenced
136 * Linux decodes at least the name of all syscalls as of pre2.0.4
137 * various cosmetic changes and bug fixes
139 Changes from versions 2.x to version 3.0
140 ========================================
142 * filename arguments are neither abbreviated nor stringified
143 * string arguments are now true C strings using octal instead of hex by default
144 * preprocessor constants are never shortened (e.g. was RDONLY => now O_RDONLY)
145 * by default the output for multiple processes now goes into one file
146 * all structures, vectors, bitsets, etc. use consistent output formats
147 * the -c option now means count calls, -i does what the old -c used to do
149 New Features in version 3.0
150 ===========================
152 * non-ascii strings can be optionally printed entirely in hex
153 * the output format is readable when mutiple processes are generating output
154 * exit values are printed in an alignment column
155 * is is possible to suppress messages about attaching and detaching
156 * various tracing features can be enabled on a per syscall/signal/desc basis
157 * selective tracing of syscalls
158 * selective printing of syscall structures
159 * selective abbreviation of long structures on a per syscall basis
160 * selective printing of raw syscall arguments and results
161 * selective tracing of signals
162 * selective dumping of all I/O read from file descriptors
163 * selective dumping of all I/O written to file descriptors
164 * optional counting of time, calls, and errors for each syscall