1 Changes in 4.4.96 TEST release
3 * New port to AMD's x86-64 architecture. One strace binary can
4 handle both new x86-64 and old i386 processes.
5 * Fixed support for LFS64 calls.
6 * New switch -E to add/remove environment variables for the command.
7 * Merged s390/s390x port.
8 * Trace an unbounded number of processes.
9 * Handle numerous new system calls in Linux 2.5, and new threads semantics.
10 * Fixed bugs with attach/detach leaving things stopped.
11 * Fixed traced process seeing ECHILD despite live, traced children
12 in waitpid calls with WNOHANG.
13 * Stuart Menefy contributed a port to Linux/SH.
17 * Fix Linux/ia64 support, looks like someone renamed a few things on us
18 * Fix the ioctl setup for Linux, turned out it did not really work.
19 Improve the ioctl extracter as well so we decode some more ones.
23 * compile fixes for Linux/mips
27 * Linux ia64 and hppa ports added
28 * The usual Linux syscall updates (includes 32bit uid/gid support),
29 * Linux ioctl list updated
30 * Support IPv6 scope ids
31 * FreeBSD/i386 port added
32 * UnixWare and Solaris updates
33 * Better support for tracing multithreaded processes in Linux
37 * Compiles on glibc2.0 systems again
38 * Linux/S390 port added
39 * The usual Linux syscall updates
40 * we can follow fork on arm now
44 * Linux/MIPS port added
45 * Lots of Linux updates again
46 * Improved IPv6 support
52 * Compiles on glibc2.0 systems again
56 * Get stat structure properly on Linux 64bit archs
57 * Personalities work again
58 * Compile correctly on SunOS again
64 * Linux (ultra)sparc fixes
71 * add support for more Linux architectures (powerpc, sparc, arm)
72 * support lots more Linux syscalls
74 * add IPX and IPIP support
75 * check stray syscall after execv
76 * fix hanging children
78 Changes in version 3.1
79 ======================
82 * Linux 68k is supported
83 * Linux alpha is supported
84 * configure is upgraded to autoconf 2.x
85 * using -f in combination with -e now works correctly
86 * output can be piped to a program
87 * tracing setuid programs works better
88 * it is now reasonable to install strace setuid to root in some circumstances
89 * new useful tracing names like file and process to trace whole
90 classes of system calls, e.g. -efile traces all system calls that
91 take a file name as an argument
92 * IPC calls on SunOS 4.1.x are decoded
93 * Linux program memory is reliably dereferenced
94 * Linux decodes at least the name of all syscalls as of pre2.0.4
95 * various cosmetic changes and bug fixes
97 Changes from versions 2.x to version 3.0
98 ========================================
100 * filename arguments are neither abbreviated nor stringified
101 * string arguments are now true C strings using octal instead of hex by default
102 * preprocessor constants are never shortened (e.g. was RDONLY => now O_RDONLY)
103 * by default the output for multiple processes now goes into one file
104 * all structures, vectors, bitsets, etc. use consistent output formats
105 * the -c option now means count calls, -i does what the old -c used to do
107 New Features in version 3.0
108 ===========================
110 * non-ascii strings can be optionally printed entirely in hex
111 * the output format is readable when mutiple processes are generating output
112 * exit values are printed in an alignment column
113 * is is possible to suppress messages about attaching and detaching
114 * various tracing features can be enabled on a per syscall/signal/desc basis
115 * selective tracing of syscalls
116 * selective printing of syscall structures
117 * selective abbreviation of long structures on a per syscall basis
118 * selective printing of raw syscall arguments and results
119 * selective tracing of signals
120 * selective dumping of all I/O read from file descriptors
121 * selective dumping of all I/O written to file descriptors
122 * optional counting of time, calls, and errors for each syscall