IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
We can never be cautious enough.
* defs.h (set_personality): Change argument type to unsigned int.
* syscall.c (set_personality): Change argument type to unsigned int,
check whether requested personality is sane, die otherwise.
As all the personality-dependent entries are initially in sync, we can
move the check whether we are setting the same personality as we
currently are inside set_personality out of update_personality.
* syscall.c (current_wordsize, current_klongsize): Initialise to 0'th
personality value in order to make the statement about "all the
personality-dependent entries are initially in sync" true.
(set_personality): Check whether requested personality differs from
current_personality.
(update_personality): Call set_personality unconditionally.
Sometimes (for example, switching from a process with one personality
to a process that previously had different personality but returning
from execve to that same personality into) it is possible that
current_personality is not changed, but tcp->currpers is different.
So, let's not return from update_personality and always update
tcp->currpers if it differs from the target personality.
* syscall.c (update_personality): Do not exit early if personality ==
current_personality.
Because some architectures are very, very special.
* configure.ac (cc_flags_m32, cc_flags_mx32): New variables. AC_SUBST
them.
* m4/mpers.m4 (MPERS_CFLAGS): Use instead of CFLAG, pushdef as
$cc_flags_$1.
Use mpers_name instead of CFLAG in AC_CACHE_CHECK messages.
Pass MPERS_CFLAGS as the second argument to mpers_test.sh
* mpers.sh: Add CC_ARCH_FLAGS as the second argument (PARSER_FILE
is moved to the third one). Do not expect leading dash in ARCH_FLAG
anymore.
* mpers_test.sh (mpers_cc_flags): New variable, initialise to the second
command line argument.
Pass $mpers_name without leading dash to mpers.sh.
Pass $mpers_cc_flags as the second argument to mpers.sh ($sample is
the third argument now).
* Makefile.am (mpers-m%.stamp:): Pass $(mpers_CC_FLAGS) as the second
argument to mpers.sh ($$f is now the third argument).
($(mpers_m32_targets)): Define target variable mpers_CC_FLAGS with the
value of @cc_flags_m32@
($(mpers_mx32_targets)): Define target variable mpers_CC_FLAGS with the
value of @cc_flags_mx32@
* tests/Makefile.am (MERS_CC_FLAGS): New variable.
* bootstrap: Append @cc_flags_$1@ to MPERS_CC_FLAGS. Append
$(MPERS_CC_FLAGS) to ARCH_MFLAGS.
Validate syscall set before the whole fault injection syntax.
* filter_qualify.c (parse_inject_expression): Add const qualifier to
return type. Return an empty string when no syscall set is specified.
(qualify_inject_common): Add const qualifier to "name". Move
qualify_syscall_tokens invocation right after parse_inject_expression.
* tests/qual_fault-syntax.test: Update expected output.
* tests/qual_inject-syntax.test: Likewise.
* filter_qualify.c (parse_inject_expression): Replace "s" and "buf"
arguments with "str" argument, use it instead of "s" and "*buf".
(qualify_inject_common): Rename "buf" to "copy", initialize it to a copy
of "str", pass "copy" to parse_inject_expression instead of "str" and
"buf".
* configure.ac [$arch = mips]: Use AC_MSG_FAILURE instead of
AC_MSG_ERROR when _MIPS_SIM cannot be determined. Use AC_MSG_ERROR
instead of AC_MSG_FAILURE when syscallent stubs cannot be generated.
On architectures supporting multiple personalities, multiple
personalities support in strace is required for proper decoding of
structures used by tracees with personalities that differ from the
personality of strace.
New configure options control whether multiple personalities support
in strace is mandatory, optional, or disabled.
The default is changed from what is now equivalent of
--enable-mpers=check (automatically detect whether required mpers
support could be enabled) to --enable-mpers (terminate the build
if required mpers support could not be enabled).
* configure.ac (AC_ARG_ENABLE([mpers])): New option.
* m4/mpers.m4 (st_MPERS): Use enable_mpers. Terminate the build
if mpers could not be enabled and enable_mpers==yes.
* strace.spec.in: Specify --enable-mpers=check to %configure.
* debian/rules (build/Makefile, build64/Makefile): Specify
--enable-mpers=check to configure.
Co-authored-by: Dmitry V. Levin <ldv@altlinux.org>
Suggested-by: DJ Delorie <dj@redhat.com>
* defs.h (HAVE_PERSONALITY_1_MPERS, HAVE_PERSONALITY_2_MPERS): New
macros.
* syscall.c (update_personality): Add need_mpers_warning array
initialized with mpers support data. Use it for printing the mpers
unavailability warning once per personality.
Co-authored-by: Dmitry V. Levin <ldv@altlinux.org>
In particular, check for the recent fixes in reboot syscall decoder.
* tests/gen_tests.in (reboot): Provide -s 256 option.
* tests/reboot.c (STR32, STR128): New macros.
(main): Add more checks.
The size of kernel buffer is 256 bytes and the last byte is always zero.
* reboot.c (SYS_FUNC(reboot)): Replace printstr call with printstr_ex
with size of 255 and style flag QUOTE_0_TERMINATED.
This is the location where this header is installed on Debian-based
systems.
* configure.ac: Check for libiberty/demangle.h in addition to
demangle.h.
* unwind.c [USE_DEMANGLE]: Include either <demangle.h> or
<libiberty_demangle.h> based on the presence of HAVE_DEMANGLE_H and
HAVE_LIBIBERTY_DEMANGLE_H macros.
* configure.ac (arch_native): New variable, set to arch.
* tests/Makefile.am (NATIVE_ARCH): New variable, set to @arch_native@.
(AM_TEST_LOG_FLAGS): Pass NATIVE_ARCH as STRACE_NATIVE_ARCH environment
variable.
Since there is possibility now that strace read only entry_number field
of the user_desc struct, let's check that it doesn't do it with
modify_ldt syscall.
* tests/modify_ldt.c (main): Add 4-byte-sized tail_alloc'ed variable.
Try to provide it as an argument to modify_ldt.
Kernel reads only entry_number field in the beginning of the
get_thread_area syscall handler. Let's replicate this behaviour.
* defs.h (enum user_desc_print_filter): New enumeration.
(print_user_desc): Add an argument for signalling which part of the
structure should be printed.
* clone.c (print_tls_arg): Update print_user_desc call.
* ldt.c (print_user_desc): Add filter argument. Print entry_number on
entering and the rest on exiting. Store entering value of the
entry_number field in order to print the updated value in the impossible
case of changed entry_number value.
(SYS_FUNC(modify_ldt), SYS_FUNC(set_thread_area)): Update
print_user_desc call.
(SYS_FUNC(get_thread_area)): Call print_user_desc with
USER_DESC_ENTERING format argument on entering and with
USER_DESC_EXITING on exiting.
As part of preparation for the introduction of [gs]et_thread_area test.
* tests/modify_ldt.c (print_user_desc): Move it ...
* tests/print_user_desc.c: ... to new file.
* tests/Makefile.am (EXTRA_DIST): Add print_user_desc.c.
* ldt.c (modify_ldt): Move parsing under entering(tcp). Check whether
return code is erroneous and set tcp->u_error appropriately along with
RVAL_PRINT_ERR_VAL flag.
Some weird syscalls (like modify_ldt) return value that doesn't indicate
an error (less than -4096), but it is, in fact, erroneous (because they
decide to clip the return value to 32-bit, for example).
Add a flag to print decoded error code along with syscall return value.
* defs.h (RVAL_PRINT_ERR_VAL): New rval flag.
* syscall.c (syscall_exiting_trace): Handle it.
Also, while we are here, let's fix print qualifiers (which should be %u
and not %d).
* ldt.c (print_user_desc): Use PRINT_FIELD_* macros for printing
structure.
(SYS_FUNC(set_thread_area)): Change field key-value separator from ":"
to "=", change print format qualifier from %d to %u.
Add a macro for printing fields explicitly casted to specific type.
This is useful for bit fields, as otherwise the magic of *_extend_to_*
macros breaks.
* print_field.h (PRINT_FIELD_U_CAST): New macro.
As uid is not the only thing that has a special treatment of the -1
value (and, as a result, needs special care), let's rename
PRINT_FIELD_UID to PRINT_FIELD_ID and make PRINT_FIELD_UID its alias.
* print_fields.h (PRINT_FIELD_ID): Rename from PRINT_FIELD_UID.
(PRINT_FIELD_UID): Define to PRINT_FIELD_ID.
