Commit Graph

26 Commits

Author SHA1 Message Date
Denys Vlasenko
000b601439 Fix a case of broken output if last seen syscall was exit
* defs.h: Rename tcp_last to printing_tcp. Explain what it means.
Remove printtrailer() function.
* process.c (sys_exit): Convert printtrailer() call to "printing_tcp = NULL".
* strace.c: Add new variable printing_tcp.
(cleanup): Convert printtrailer() call to "printing_tcp = NULL".
(trace): Likewise.
(trace): Fix checks for incomplete line - it was working wrongly if last syscall was exit.
(printleader): Set printing_tcp.
(printtrailer): Remove this function.
* syscall.c: Remove tcp_last variable.
(trace_syscall_entering): Don't set printing_tcp, printleader call now does it.
(trace_syscall_exiting): Convert printtrailer() call to "printing_tcp = NULL".

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-01-28 01:25:03 +01:00
Denys Vlasenko
c76ae4352e Add new test program: test/threaded_execve.c
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2012-01-27 15:37:13 +01:00
Denys Vlasenko
5d64581e10 Improve code readability by avoiding assignments inside if()
* desc.c (decode_select): Move assignment out of if() condition.
* file.c (sprinttime): Likewise.
(sys_getdirentries): Likewise.
* io.c (sys_ioctl): Likewise.
* strace.c (test_ptrace_setoptions_followfork): Likewise.
(main): Likewise.
(proc_open): Likewise.
(detach): Likewise.
(proc_poll): Likewise.
(trace): Likewise.
* syscall.c (qualify): Likewise.
(sys_indir): Likewise.
* test/procpollable.c (main): Likewise.
* test/sfd.c (main): Likewise.
* time.c (printtv_bitness): Likewise.
(sprinttv): Likewise.
(print_timespec): Likewise.
(void sprint_timespec): Likewise.
(printitv_bitness): Likewise.
* util.c (dumpstr): Likewise.
(umovestr): Likewise.
(fixvfork): Likewise.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2011-08-23 12:53:01 +02:00
Denys Vlasenko
9aa97968ed Optimize sys_old_mmap
* mem.c (sys_old_mmap): For Ia64 and 32-bit personality of x86-64,
copy narrow parameters from userspace by single umove, not by six
separate ones; then assign them to long u_arg[i]. For SH[64],
avoid copying of tcp->u_arg.
(sys_mmap): Add FIXME comment - SH64 and i386 seem to be handled
differently for no apparent reason.
* test/mmap_offset_decode.c: New test program, illustrates FIXME.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2011-08-23 12:53:01 +02:00
Denys Vlasenko
7c57be862b Add fflush after printf in test/sigkill_rain.c
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2011-06-08 16:07:03 +02:00
Denys Vlasenko
8158e7716c Update test/* directory, it seem to be a bit bit-rotted
Added README; modified sigkill_rain.c to be more understandable,
made clone.c compile; added wait_must_be_interruptible.c test;
updated Makefile and .gitignore.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2011-06-08 14:08:59 +02:00
Denys Vlasenko
b63256e69b Whitespace cleanups. no code changes.
* bjm.c: Fix tabulation (such as extra spaces before tabs),
convert punctuation where it deviates from prevalent form
elsewhere in strace code, convert sizeof and offsetof where
it deviates from from prevalent form, remove space between
function/macro/array names and (parameters) or [index],
add space between "if" and (condition), correct non-standard
or wrong indentaion.
* defs.h: Likewise
* desc.c: Likewise
* file.c: Likewise
* ipc.c: Likewise
* linux/arm/syscallent.h: Likewise
* linux/avr32/syscallent.h: Likewise
* linux/hppa/syscallent.h: Likewise
* linux/i386/syscallent.h: Likewise
* linux/ioctlsort.c: Likewise
* linux/m68k/syscallent.h: Likewise
* linux/microblaze/syscallent.h: Likewise
* linux/powerpc/syscallent.h: Likewise
* linux/s390/syscallent.h: Likewise
* linux/s390x/syscallent.h: Likewise
* linux/sh/syscallent.h: Likewise
* linux/sh64/syscallent.h: Likewise
* linux/tile/syscallent.h: Likewise
* linux/x86_64/syscallent.h: Likewise
* mem.c: Likewise
* net.c: Likewise
* pathtrace.c: Likewise
* process.c: Likewise
* signal.c: Likewise
* sock.c: Likewise
* strace.c: Likewise
* stream.c: Likewise
* sunos4/syscall.h: Likewise
* sunos4/syscallent.h: Likewise
* svr4/syscall.h: Likewise
* svr4/syscallent.h: Likewise
* syscall.c: Likewise
* system.c: Likewise
* test/childthread.c: Likewise
* test/leaderkill.c: Likewise
* test/skodic.c: Likewise
* time.c: Likewise
* util.c: Likewise

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2011-06-07 12:13:24 +02:00
a6ca968003 Remove obsolete .cvsignore files
* test/.cvsignore: Rename to test/.gitignore.
* */.cvsignore, */*/.cvsignore: Removed.
2011-02-25 16:53:50 +00:00
414fe7d4d2 Cleanup trailing whitespaces and indentation that uses spaces before tabs
Correct spacing to fix warnings reported by
git diff --check 4b825dc642 HEAD

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
2009-07-08 14:57:27 +00:00
Roland McGrath
eb9e2e8904 Revert unapproved commits. 2009-06-02 16:49:22 -07:00
Denys Vlasenko
8ed5727642 By Hans-Christian Egtvedt (hans-christian.egtvedt AT atmel.com):
strace.c: suppress "warning: unused static" message by adding #ifdef's around
 a variable
.gitignore: trivial
test/*.c: cleanup (suppress warnings, much better style).
2009-02-25 14:24:02 +00:00
Denys Vlasenko
26de70e92e test/sigkill_rain.c: a testcase with lots of async deaths 2009-02-13 10:26:31 +00:00
Denys Vlasenko
215cc27037 * defs.h: Add new struct tcb fields: wait_status, next_need_service.
make flags field wider (ints are easier to work with on many CPUs).
* strace.c (trace): Split this function into two:
collect_stopped_tcbs() and handle_stopped_tcbs().
Now we collect *all* waitable tasks, then handle them all,
then repeat.
Fixes RH#478419 "Some threads stop when strace with -f option
is executed on a multi-thread process"
* test/many_looping_threads.c: example program which cna't be straced
successfully without this fix.
2009-01-09 17:22:56 +00:00
Denys Vlasenko
b1efe53531 Fix build breakage from my previous commit.
Now I test for PT_SETOPTIONS being #defined.
Remove trailing whitespace.
No actual code changes.
2008-12-23 16:14:42 +00:00
Denys Vlasenko
62958b2fd9 vda tests his commit powers by removing trailing whitespace from a test 2008-12-09 14:02:59 +00:00
Roland McGrath
276ceb33f2 2007-11-06 Jan Kratochvil <jan.kratochvil@redhat.com>
* strace.c [LINUX] (droptcb): Recurse on TCP->parent if it is a
	TCB_EXITING zombie group leader.
	* test/childthread.c: New file.
	* test/.cvsignore, test/Makefile: Add it.
	Code advisory: Roland McGrath
	Fixes RH#354261.
2007-11-13 08:12:12 +00:00
Roland McGrath
a2eed4f8a1 2007-08-02 Jan Kratochvil <jan.kratochvil@redhat.com>
* test/leaderkill.c (start): Renamed to ...
	(start0): ... here.
	(start1): New function.
	(main): Created a new spare thread.
2007-08-03 10:02:02 +00:00
Roland McGrath
e1e57b2840 2007-07-05 Jan Kratochvil <jan.kratochvil@redhat.com>
* test/leaderkill.c: New file.
	* test/.cvsignore, test/Makefile: Add it.
2007-07-05 18:43:18 +00:00
Wichert Akkerman
10b9cfbbe4 add clone 2000-09-03 23:38:17 +00:00
Wichert Akkerman
9b0c31d663 process.c: perform bpt trick for clone as well so we can get the pid of the child before it starts doing something
file.c: rename dirent64 struct to kernel_dirent64 so things compile again with newer libcs
2000-09-03 21:56:29 +00:00
Wichert Akkerman
16a03d2e97 test/clone.c: minor fixup
Another bunch of patches from John Hughes merged:
signal.c:
+ SVR4 printcontext(): sigset_t != sigset_t*
+ getcontext returns a value, so print on exit of syscall
+ add UC_FP to ucontext_flags for OS writers that can't spell
+ sys_signal(): special case SIG_{ERR,DFL,IGN}
+ decode_subcall(): only do subcall range checking when needed
bunch of UnixWare updates
aclocal.m4, acconfig.h, configure.in: add test for long long type
2000-08-10 02:14:04 +00:00
Wichert Akkerman
529f06d9c9 add clone test 2000-04-10 22:26:39 +00:00
Wichert Akkerman
c792698a99 README-linux: updated to note that strace might not compile
with development kernels
bjm.c: sys_query_module: check if malloc succeeds
system.c: sys_cap[gs]et(): check if malloc succeeds, only malloc once
linux/syscallent.h: updated for 2.3.99pre3
linux/alpha/syscallent.h: updated for 2.3.99pre3, add all osf syscalls
even though Linux doesn't implement them
syscall.c: add global variables for MIPS registers as well
syscall.c: move global variables to before get_scno since that uses them
util.c: oops, misspelled defined
process.c: fix ptrace calls in change_syscall
mem.c: decode sys_madvise
Merge patch from Topi Miettinen <Topi.Miettinen@nic.fi>
+ add support for quotactl, fdatasync, mlock, mlockall, munlockall & acct
+ small fix for RLIMIT_* and RUSAGE_BOTH
+ enhace support for capget and capset
2000-04-10 22:22:31 +00:00
Wichert Akkerman
faf722234d test/vfork.c: new file to test vfork traces
test/.cvsignore: new file
defs.h: Up maximum number of traced processed to 64
strace.c: Disable some debugging code from davidm
implement setarg for more architectures
implement change_syscall
2000-02-19 23:59:03 +00:00
Pavel Machek
245a6ac0e7 Automatically probe for sys/poll.h
Include example of nasty program where strace (by design) gives
incorrect output.
2000-02-01 16:12:33 +00:00
Wichert Akkerman
76baf7c9f6 Initial revision 1999-02-19 00:21:36 +00:00