1 Changes in 4.4.95 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.
16 * Fix Linux/ia64 support, looks like someone renamed a few things on us
17 * Fix the ioctl setup for Linux, turned out it did not really work.
18 Improve the ioctl extracter as well so we decode some more ones.
22 * compile fixes for Linux/mips
26 * Linux ia64 and hppa ports added
27 * The usual Linux syscall updates (includes 32bit uid/gid support),
28 * Linux ioctl list updated
29 * Support IPv6 scope ids
30 * FreeBSD/i386 port added
31 * UnixWare and Solaris updates
32 * Better support for tracing multithreaded processes in Linux
36 * Compiles on glibc2.0 systems again
37 * Linux/S390 port added
38 * The usual Linux syscall updates
39 * we can follow fork on arm now
43 * Linux/MIPS port added
44 * Lots of Linux updates again
45 * Improved IPv6 support
51 * Compiles on glibc2.0 systems again
55 * Get stat structure properly on Linux 64bit archs
56 * Personalities work again
57 * Compile correctly on SunOS again
63 * Linux (ultra)sparc fixes
70 * add support for more Linux architectures (powerpc, sparc, arm)
71 * support lots more Linux syscalls
73 * add IPX and IPIP support
74 * check stray syscall after execv
75 * fix hanging children
77 Changes in version 3.1
78 ======================
81 * Linux 68k is supported
82 * Linux alpha is supported
83 * configure is upgraded to autoconf 2.x
84 * using -f in combination with -e now works correctly
85 * output can be piped to a program
86 * tracing setuid programs works better
87 * it is now reasonable to install strace setuid to root in some circumstances
88 * new useful tracing names like file and process to trace whole
89 classes of system calls, e.g. -efile traces all system calls that
90 take a file name as an argument
91 * IPC calls on SunOS 4.1.x are decoded
92 * Linux program memory is reliably dereferenced
93 * Linux decodes at least the name of all syscalls as of pre2.0.4
94 * various cosmetic changes and bug fixes
96 Changes from versions 2.x to version 3.0
97 ========================================
99 * filename arguments are neither abbreviated nor stringified
100 * string arguments are now true C strings using octal instead of hex by default
101 * preprocessor constants are never shortened (e.g. was RDONLY => now O_RDONLY)
102 * by default the output for multiple processes now goes into one file
103 * all structures, vectors, bitsets, etc. use consistent output formats
104 * the -c option now means count calls, -i does what the old -c used to do
106 New Features in version 3.0
107 ===========================
109 * non-ascii strings can be optionally printed entirely in hex
110 * the output format is readable when mutiple processes are generating output
111 * exit values are printed in an alignment column
112 * is is possible to suppress messages about attaching and detaching
113 * various tracing features can be enabled on a per syscall/signal/desc basis
114 * selective tracing of syscalls
115 * selective printing of syscall structures
116 * selective abbreviation of long structures on a per syscall basis
117 * selective printing of raw syscall arguments and results
118 * selective tracing of signals
119 * selective dumping of all I/O read from file descriptors
120 * selective dumping of all I/O written to file descriptors
121 * optional counting of time, calls, and errors for each syscall