4 * Several biarch improvements.
5 * Improved output for adjtimex, sysctl, quotactl, umount.
6 * Support new Linux system calls *at, inotify*, pselect6, ppoll and unshare.
11 * Accept numeric system calls in -e.
16 * Introduce "-e trace=desc".
21 * Better x86-64 support for IA32 processes.
22 * Update PowerPC system calls.
23 * Better printing for Linux aio system calls.
27 * Quick fix release for build issues.
28 * One fix for Linux/ARM system call table.
33 * Print fault address for SIGSEGV/SIGBUS signals when available.
38 * Improve socket ioctl printing.
39 * Update Linux/IA64 syscall list.
40 * Fix Linux/x86-64 syscall argument extraction for 32-bit processes.
41 * Improve mount flags printing.
42 * Support symbolic printing of x86_64 arch_prctl parameters.
47 * Update syscall tables for Alpha, ARM, HPPA.
48 * Support new Linux syscalls mbind, set_mempolicy, get_mempolicy, waitid.
49 * Support Linux syscalls fadvise64, fadvise64_64, and epoll_*.
50 * Improve ioctl command name matching.
51 * Print RTC_* ioctl structure contents.
52 * Support newer RLIMIT_* values.
53 * Print struct cmsghdr details in sendmsg.
58 * Print attribute values in *xattr system calls on Linux.
59 * Include pread and pwrite calls in -e read and -e write tracing.
60 * Update SO_* and IP_* value lists and add IPV6_* values for socket options.
61 * Print clock_t values symbolically in Linux clock_* system calls.
65 * Bug fixes, Linux ioctl updates.
66 * David Miller contributed support for Linux/SPARC64.
74 * Update Linux ioctl lists.
75 * Update PF_* and AF_* value lists.
76 * The 4.5.3 -p behavior for NPTL threads applies only under -f, and got fixed.
81 * On Linux using NPTL threads, -p will now attach to all threads in a process.
82 * Handle new mq_* system calls in Linux 2.6.6 and later.
87 * Report some new VM_* bit values on Linux.
88 * Better output for Linux sched_* system calls.
93 * Display multiple ioctl name matches on Linux.
97 * New port to AMD's x86-64 architecture. One strace binary can
98 handle both new x86-64 and old i386 processes.
99 * Fixed support for LFS64 calls.
100 * New switch -E to add/remove environment variables for the command.
101 * Merged s390/s390x port.
102 * Trace an unbounded number of processes.
103 * Handle numerous new system calls in Linux 2.5, and new threads semantics.
104 * Fixed bugs with attach/detach leaving things stopped.
105 * Fixed traced process seeing ECHILD despite live, traced children
106 in waitpid calls with WNOHANG.
107 * Stuart Menefy contributed a port to Linux/SH.
108 * Stephen Thomas contributed a port to Linux/SH64.
109 * Many other bug fixes.
113 * Fix Linux/ia64 support, looks like someone renamed a few things on us
114 * Fix the ioctl setup for Linux, turned out it did not really work.
115 Improve the ioctl extracter as well so we decode some more ones.
119 * compile fixes for Linux/mips
123 * Linux ia64 and hppa ports added
124 * The usual Linux syscall updates (includes 32bit uid/gid support),
125 * Linux ioctl list updated
126 * Support IPv6 scope ids
127 * FreeBSD/i386 port added
128 * UnixWare and Solaris updates
129 * Better support for tracing multithreaded processes in Linux
133 * Compiles on glibc2.0 systems again
134 * Linux/S390 port added
135 * The usual Linux syscall updates
136 * we can follow fork on arm now
140 * Linux/MIPS port added
141 * Lots of Linux updates again
142 * Improved IPv6 support
148 * Compiles on glibc2.0 systems again
152 * Get stat structure properly on Linux 64bit archs
153 * Personalities work again
154 * Compile correctly on SunOS again
160 * Linux (ultra)sparc fixes
167 * add support for more Linux architectures (powerpc, sparc, arm)
168 * support lots more Linux syscalls
169 * fix signal handling
170 * add IPX and IPIP support
171 * check stray syscall after execv
172 * fix hanging children
174 Changes in version 3.1
175 ======================
178 * Linux 68k is supported
179 * Linux alpha is supported
180 * configure is upgraded to autoconf 2.x
181 * using -f in combination with -e now works correctly
182 * output can be piped to a program
183 * tracing setuid programs works better
184 * it is now reasonable to install strace setuid to root in some circumstances
185 * new useful tracing names like file and process to trace whole
186 classes of system calls, e.g. -efile traces all system calls that
187 take a file name as an argument
188 * IPC calls on SunOS 4.1.x are decoded
189 * Linux program memory is reliably dereferenced
190 * Linux decodes at least the name of all syscalls as of pre2.0.4
191 * various cosmetic changes and bug fixes
193 Changes from versions 2.x to version 3.0
194 ========================================
196 * filename arguments are neither abbreviated nor stringified
197 * string arguments are now true C strings using octal instead of hex by default
198 * preprocessor constants are never shortened (e.g. was RDONLY => now O_RDONLY)
199 * by default the output for multiple processes now goes into one file
200 * all structures, vectors, bitsets, etc. use consistent output formats
201 * the -c option now means count calls, -i does what the old -c used to do
203 New Features in version 3.0
204 ===========================
206 * non-ascii strings can be optionally printed entirely in hex
207 * the output format is readable when mutiple processes are generating output
208 * exit values are printed in an alignment column
209 * is is possible to suppress messages about attaching and detaching
210 * various tracing features can be enabled on a per syscall/signal/desc basis
211 * selective tracing of syscalls
212 * selective printing of syscall structures
213 * selective abbreviation of long structures on a per syscall basis
214 * selective printing of raw syscall arguments and results
215 * selective tracing of signals
216 * selective dumping of all I/O read from file descriptors
217 * selective dumping of all I/O written to file descriptors
218 * optional counting of time, calls, and errors for each syscall