4 * On Linux using NPTL threads, -p will now attach to all threads in a process.
9 * Report some new VM_* bit values on Linux.
10 * Better output for Linux sched_* system calls.
15 * Display multiple ioctl name matches on Linux.
19 * New port to AMD's x86-64 architecture. One strace binary can
20 handle both new x86-64 and old i386 processes.
21 * Fixed support for LFS64 calls.
22 * New switch -E to add/remove environment variables for the command.
23 * Merged s390/s390x port.
24 * Trace an unbounded number of processes.
25 * Handle numerous new system calls in Linux 2.5, and new threads semantics.
26 * Fixed bugs with attach/detach leaving things stopped.
27 * Fixed traced process seeing ECHILD despite live, traced children
28 in waitpid calls with WNOHANG.
29 * Stuart Menefy contributed a port to Linux/SH.
30 * Stephen Thomas contributed a port to Linux/SH64.
31 * Many other bug fixes.
35 * Fix Linux/ia64 support, looks like someone renamed a few things on us
36 * Fix the ioctl setup for Linux, turned out it did not really work.
37 Improve the ioctl extracter as well so we decode some more ones.
41 * compile fixes for Linux/mips
45 * Linux ia64 and hppa ports added
46 * The usual Linux syscall updates (includes 32bit uid/gid support),
47 * Linux ioctl list updated
48 * Support IPv6 scope ids
49 * FreeBSD/i386 port added
50 * UnixWare and Solaris updates
51 * Better support for tracing multithreaded processes in Linux
55 * Compiles on glibc2.0 systems again
56 * Linux/S390 port added
57 * The usual Linux syscall updates
58 * we can follow fork on arm now
62 * Linux/MIPS port added
63 * Lots of Linux updates again
64 * Improved IPv6 support
70 * Compiles on glibc2.0 systems again
74 * Get stat structure properly on Linux 64bit archs
75 * Personalities work again
76 * Compile correctly on SunOS again
82 * Linux (ultra)sparc fixes
89 * add support for more Linux architectures (powerpc, sparc, arm)
90 * support lots more Linux syscalls
92 * add IPX and IPIP support
93 * check stray syscall after execv
94 * fix hanging children
96 Changes in version 3.1
97 ======================
100 * Linux 68k is supported
101 * Linux alpha is supported
102 * configure is upgraded to autoconf 2.x
103 * using -f in combination with -e now works correctly
104 * output can be piped to a program
105 * tracing setuid programs works better
106 * it is now reasonable to install strace setuid to root in some circumstances
107 * new useful tracing names like file and process to trace whole
108 classes of system calls, e.g. -efile traces all system calls that
109 take a file name as an argument
110 * IPC calls on SunOS 4.1.x are decoded
111 * Linux program memory is reliably dereferenced
112 * Linux decodes at least the name of all syscalls as of pre2.0.4
113 * various cosmetic changes and bug fixes
115 Changes from versions 2.x to version 3.0
116 ========================================
118 * filename arguments are neither abbreviated nor stringified
119 * string arguments are now true C strings using octal instead of hex by default
120 * preprocessor constants are never shortened (e.g. was RDONLY => now O_RDONLY)
121 * by default the output for multiple processes now goes into one file
122 * all structures, vectors, bitsets, etc. use consistent output formats
123 * the -c option now means count calls, -i does what the old -c used to do
125 New Features in version 3.0
126 ===========================
128 * non-ascii strings can be optionally printed entirely in hex
129 * the output format is readable when mutiple processes are generating output
130 * exit values are printed in an alignment column
131 * is is possible to suppress messages about attaching and detaching
132 * various tracing features can be enabled on a per syscall/signal/desc basis
133 * selective tracing of syscalls
134 * selective printing of syscall structures
135 * selective abbreviation of long structures on a per syscall basis
136 * selective printing of raw syscall arguments and results
137 * selective tracing of signals
138 * selective dumping of all I/O read from file descriptors
139 * selective dumping of all I/O written to file descriptors
140 * optional counting of time, calls, and errors for each syscall