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These manual tests are obsoleted by fork-f.test and vfork-f.test.
* test/fork.c: Remove.
* test/vfork.c: Remove.
* test/Makefile (PROGS): Remove fork and vfork.
* test/.gitignore: Remove fork and vfork.
We used to allocate and fetch bit arrays using a sanitized
length, but then iterate over them with "j < arg[0]" condition,
where arg[0] is not sanitized. This segfaults if arg[0] is huge
or negative. This change fixes this.
Add test/select.c to capture the case.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
This includes decoding of 32-bit sigreturn by 64-bit strace,
which previously wasn't done.
Added a test for it.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
I used these to develop the mtd/ubi ioctl decoders.
* test/.gitignore: Add mtd/ubi.
* test/Makefile: Declare all tests in a PROGS var.
Declare build targets .PHONY.
(all): Depend on $(PROGS) instead of hardcoded list.
(clean): Remove $(PROGS) instead of hardcoded list.
* test/mtd.c: New file.
* test/ubi.c: Likewise.
These funcs use things like wait/write/read/strcmp but sometimes
don't include the right header for them.
* test/Makefile: Add -Wall to CFLAGS.
* test/clone.c: Include unistd.h.
* test/fork.c: Include sys/wait.h.
* test/sig.c: Include unistd.h.
* test/sigkill_rain.c: Include sys/wait.h.
* test/vfork.c: Include sys/wait.h.
* test/wait_must_be_interruptible.c: Include string.h
The metag ABI has stacks growing upwards so clone expects the stack
argument to point at the bottom of the stack instead of the top.
* test/threaded_execve.c [__metag__]: Define clone2 differently
to avoid a segfault at runtime.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
* test/skodic.c (main): Don't use MAP_FIXED since valid virtual addresses
vary between architectures (as far as I can tell the use of MAP_FIXED is
not relevant to the test). Also don't assume the file desriptor returned
by open call is 3 when passing it to mmap.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Previous code merges too many similar, but different ways
of decoding mmap. For example, sys_old_mmap is "params in memory"
API... except SH[64], where it is "params in regs",
i.e. what sys_mmap ("new mmap") function does on other arches!
It's much simpler when every mmap handler has same API regardless
of arch. Where API means whether params are in regs or in memory,
and whether offset is in bytes, pages, or 4k blocks.
Then we just insert correct function pointers into
arch syscall tables.
It turns out there are four common mmap APIs over
all architectures which exist in Linux kernel,
and one outlier for S390.
A number of mmap decoders were plain wrong in arch tables.
For example, BFIN has no old_mmap. It returns ENOSYS.
I checked kernel sources for all arches nad fixed the tables.
There was dead code for x86_64 for old_mmap:
x86_64 has no old_mmap.
* mem.c: Refactor mmap functions so that we have five mmap syscall
handlers, each with the fixed API (not varying by arch).
* pathtrace.c (pathtrace_match): Adjust sys_func == mmap_func checks.
* linux/syscall.h: Declare new mmap syscall handler functions.
* linux/arm/syscallent.h: mmap2 is sys_mmap_pgoff.
* linux/avr32/syscallent.h: mmap is sys_mmap_pgoff.
* linux/bfin/syscallent.h: old_mmap is ENOSYS, mmap2 is sys_mmap_pgoff.
* linux/hppa/syscallent.h: mmap2 is sys_mmap_4koff.
* linux/i386/syscallent.h: mmap2 is sys_mmap_pgoff.
* linux/ia64/syscallent.h: mmap2 is sys_mmap_pgoff.
* linux/m68k/syscallent.h: mmap2 is sys_mmap_pgoff.
* linux/microblaze/syscallent.h: old_mmap is sys_mmap, mmap2 is sys_mmap_pgoff.
* linux/mips/syscallent.h: mmap is sys_mmap_4kgoff.
* linux/or1k/syscallent.h: mmap2 is sys_mmap_pgoff.
* linux/powerpc/syscallent.h: mmap2 is sys_mmap_4kgoff.
* linux/s390/syscallent.h: mmap2 is sys_old_mmap_pgoff.
* linux/s390x/syscallent.h: mmap is sys_old_mmap and thus has 1 arg.
* linux/sh/syscallent.h: old_mmap2 is sys_mmap, mmap2 is sys_mmap_4koff.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent1.h: mmap is TD|TM.
* linux/tile/syscallent1.h: mmap2 is sys_mmap_4koff.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* mem.c (sys_mmap): Ensure unsigned expansion of tcp->u_arg[5].
Add page shift of offset for I386.
Use tcp->ext_arg[5] as offset for X32.
(sys_old_mmap): [X32] Remove this function, X32 doesn't use is.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
The files not mentioned in changelog below had only
copyright notices fixes and indentation fixes.
* defs.h: Include <stdint.h> and <inttypes.h>.
* file.c: Do not include <inttypes.h>.
Move struct kernel_dirent declaration below top include block.
* block.c: Do not include <stdint.h> and <inttypes.h>.
* quota.c: Likewise.
* desc.c: Likewise.
* signal.c: Likewise.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* 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>
* 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>
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>
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.
* 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.
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
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
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
