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Rather than constantly deal with the sparc/syscall.h going stale, merge
the few sparc-specific pieces into the linux/syscall.h header.
* linux/syscall.h: Add sparc-specific pieces from sparc/syscall.h.
* Makefile.am (EXTRA_DIST): Remove linux/sparc/syscall.h and
linux/sparc64/syscall.h.
* linux/sparc/syscall.h, linux/sparc64/syscall.h: Deleted.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Sync missing defs from the common syscall.h here.
* linux/sparc/syscall.h: Add sys_setfsuid, sys_pread64, and
sys_pwrite64 prototypes.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
I can't find any mention of this header actually being used.
Seems to be a really old copy of the common syscall.h.
* Makefile.am (EXTRA_DIST): Remove linux/sparc/syscall.h.2.
* linux/sparc/syscall.h.2: Deleted.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* defs.h (SYSCALL_NEVER_FAILS): New syscall flag.
* linux/dummy.h: Change redirection for sys_get[ug]id, sys_gete[ug]id
and setfs[ug]id.
* linux/*/syscallent.h: Set SYSCALL_NEVER_FAILS flag for get[ug]id,
gete[ug]id and setfs[ug]id syscalls.
* process.c [LINUX] (sys_getuid, sys_setfsuid): New functions.
* syscall.c (NF): New shorthand macro for use in syscallent.h files.
(get_error): Check SYSCALL_NEVER_FAILS flag.
Reported by Марк Коренберг <socketpair@gmail.com>.
* block.c: Include <inttypes.h>.
(print_blkpg_req): Always decode struct blkpg_ioctl_arg.
Robustify decoding of strings.
(block_ioctl): Do not decode return values passed by pointers on exit
from failed syscalls.
Use format macros from inttypes.h to print values of type uint64_t.
* block.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* defs.h [LINUX] (block_ioctl): New function.
* ioctl.c (ioctl_decode) [LINUX]: Use it to decode HDIO_* and BLK*
ioctls.
Patch by Jeff Mahoney <jeffm@suse.com>
* strace.c (test_ptrace_setoptions): Add PTRACE_O_TRACECLONE and
PTRACE_O_TRACEVFORK to PTRACE_SETOPTIONS call, to test exactly
the same set of options that is going to be used later in trace().
* linux/sh/syscallent.h: Add specific entries for not-multiplexed
socket calls (available in kernel mainline since v2.6.37-rc1)
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
* defs.h [SH]: Make getrval2 prototype visible to do_pipe
and fix the following compiler warning:
.../net.c: In function 'do_pipe':
.../net.c:1632: warning: implicit declaration of function 'getrval2'
.../net.c:1632: warning: format '%lu' expects type 'long unsigned int',
but argument 3 has type 'int'
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
* strace.c (main): Call test_ptrace_setoptions() before parsing
-o option, otherwise a forked command will cause a hangup inside
test_ptrace_setoptions().
If PTRACE_O_TRACECLONE et al options are supported by kernel,
use them to do followfork rather than the original setbpt
method that changes registers ourselves.
* defs.h [LINUX] (handle_new_child): New function prototype.
* process.c [LINUX] (handle_new_child): New function based on the
code from internal_fork(), with a trivial change: do reparent only
for sys_clone.
[LINUX] (internal_fork): Use handle_new_child(). Do nothing if
ptrace_setoptions is in effect.
* strace.c [LINUX] (handle_ptrace_event): New function.
[LINUX] (trace): If ptrace_setoptions is in effect, then
call the new function to handle PTRACE_EVENT_* status, and
set PTRACE_SETOPTIONS when we see the initial stop of tracee.
Signed-off-by: Wang Chao <wang.chao@cn.fujitsu.com>
Currently test fork related options only. Fork a child that uses
PTRACE_TRACEME at startup and then does a fork so strace can test
how the PTRACE_SETOPTIONS support works before it handles any real
tracee. Since PTRACE_O_TRACECLONE/*FORK were introduced to kernel
at the same time, this test seems to be enough for these 3 options.
* defs.h [LINUX]: Define PTRACE_O_TRACECLONE et al macros here.
(ptrace_setoptions): New variable declaration.
* strace.c [LINUX] (test_ptrace_setoptions): New function, tests
whether kernel supports PTRACE_O_CLONE/*FORK, the result is stored
in the new variable ptrace_setoptions for later use.
(main): Call test_ptrace_setoptions() if followfork option is set.
Signed-off-by: Wang Chao <wang.chao@cn.fujitsu.com>
If clone is called with flag CLONE_UNTRACED, to be consistent with
option PTRACE_O_TRACECLONE, we should not set CLONE_PTRACE flag on
its arguments.
* process.c [LINUX] (internal_fork): Check the syscall and arguments.
Signed-off-by: Wang Chao <wang.chao@cn.fujitsu.com>
* syscall.c (qualify_one, qual_syscall, qual_signal, qual_fault,
qual_desc): Take just a bitflag argument instead of pointer to the whole
qual_options structure.
(struct qual_options): Update prototype of "qualify" field.
(qualify): Update use of qualify_one and qual_options->qualify.
Fix regression introduced by commit v4.5.20-19-g30145dd:
if -e option is used with only one value in qualifier statement,
e.g. 'strace -e trace=open ls', syscall information would not be
printed properly.
* syscall.c (qualify): Remove faulty optimization.
Signed-off-by: Wang Chao <wang.chao@cn.fujitsu.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
The current off_t/rlim_t size checks (wrt size of long long) use AC_RUN
which obviously doesn't work when cross-compiling. While we don't hit
any configure errors, the fall back code is pretty dumb (which is to say
there isn't any). Considering the code in question though, we can use
some fun compiler tricks with sizeof and array lengths to turn it into
a pure build test and avoid the RUN issue completely.
* m4/long_long.m4 (AC_OFF_T_IS_LONG_LONG, AC_RLIM_T_IS_LONG_LONG):
Convert from AC_RUN_IFELSE to AC_COMPILE_IFELSE.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The long long endian detection code does an AC_TRY_RUN() and since that
doesn't work when cross-compiling, it sets a fallback value. However,
rather than do any sort of default endian detection, the code simply
sets it to "no". This probably breaks most little endian systems out
there when cross-compiling for them. It certainly breaks Blackfin
systems. So use the common endian detection code provided by autoconf
and key off of that when cross-compiling.
* configure.ac: Call AC_C_BIGENDIAN.
* m4/long_long.m4 (AC_LITTLE_ENDIAN_LONG_LONG): Set cross-compiling
logic based on ac_cv_c_bigendian.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
