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Change the test to allow wrappers like STRACE="valgrind ./strace".
* tests/options-syntax.test: Strip all words but last from $STRACE
variable in all contexts where the name of strace executable is expected
in its output.
libc is perfectly capable of allocating memory for its buffers,
so let it do its job.
* strace.c (init): Do not allocate memory for setvbuf invocation.
As this is the type used in kernel.
* uid.c (SYS_FUNC(setgroups), SYS_FUNC(getgroups)): Print size parameter
as "%d".
* tests/getgroups.c: Update expected output.
* tests/setgroups.c: Likewise.
Co-authored-by: Elvira Khabirova <lineprinter0@gmail.com>
* uid.c (setfsuid, get_print_uid, print_gid): Use printuid.
* tests/setfsugid.c (printuid): New function.
(main): Use it to print UID/GID values.
* tests/setgroups.c: Likewise.
* tests/setugid.c (ugid2int): Remove.
(printuid): New function.
(main): Use it to print UID/GID values.
Co-authored-by: Elvira Khabirova <lineprinter0@gmail.com>
The string literal "__NR_syscall_4294967295" is semantically incorrect
as there is no such constant defined.
* syscall.c (syscall_name): Return NULL if there is no syscall
corresponding to the given number.
* defs.h (syscall_name): Document this behaviour.
* printsiginfo.c (print_si_info): Print syscall name with "__NR_" prefix
only if there is a syscall corresponding to si_syscall number; print
a plain syscall number otherwise.
* tests/ptrace.c (main): Update expected output.
* print_statfs.c: Print f_fsid as a structure containing field "val"
which, in turn, is an array of two elements that used to be printed
as members of f_fsid structure.
* tests/statfs.expected: Update expected output.
* tests/xstatfsx.c (print_statfs): Likewise.
* swapon.c (SYS_FUNC(swapon)): Do not check for non-zero the value
of the prio variable in order to print it.
* tests/swap.c (main): Update expected output.
This makes debugging of failing test a bit easier.
* tests/init.sh (match_grep): Add the cnt variable, increment it on every
pattern line read, print it as a prefix for non-matched pattern.
It is a number which consists of several xlat values, not a structure.
* futex.c (SYS_FUNC(futex)): Modify output of the val3 argument
of the FUTEX_WAKE_OP futex syscall command.
* tests/futex.c (main): Update expected output.
Co-authored-by: Elvira Khabirova <lineprinter0@gmail.com>
* syscall.c (dumpio): Explicitly cast the first argument of syscall
to "int", the same way as the kernel does.
* tests/read-write.c: Include <asm/unistd.h> and "kernel_types.h".
(k_read, k_write): New functions.
(test_dump, main): Use them.
* tests/preadv2-pwritev2.c: Include "kernel_types.h".
(main): Use kernel_ulong_t instead of unsigned long as types
of arguments of preadv2 and pwritev2 syscalls.
* util.c (sprinttime): Make date output conform to ISO 8601.
* tests/utime.c (print_tm): Update expected output.
* tests/xstatx.c (print_time): Likewise.
Change the parser of fault expression to follow the POLA:
-e fault=!SET
means that all syscalls except those from SET are subject to fault
injection;
-e fault=!SET1:error=ERRNO1, -e fault=!SET2:error=ERRNO2
means that all syscalls except those from SET2 are subject to fault
injection with error code ERRNO2, and all syscalls from SET2 that are
not in SET1 are subject to fault injection with error code ERRNO1.
* syscall.c (qualify_scno, qualify_syscall_class, qualify_syscall_name):
Handle negated QUAL_FAULT case differently.
* tests/fault_syntax.test: Add checks of negated sets.
* utime.c (SYS_FUNC(utime)): Print struct utimbuf as a structure,
not as an array (use curly brackets instead of square ones).
Add field names to the output.
* tests/utime.c (main): Update expected output.
This is necessary for the upcoming change in the output format
of the val3 argument of the FUTEX_WAKE_OP futex command.
* defs.h (printxvals, printxval_searchn): Change return type to int.
(printxval64, printxval, printxval_long): Likewise. Forward the value
returned by printxvals call.
* util.c (printxvals, printxval_searchn): Change return type to int,
return 1 if xlat value has been found, 0 otherwise.
This is necessary for the upcoming change in the output format
of the val3 argument of the FUTEX_WAKE_OP futex command.
* util.c (printxvals): Do not print dflt if it is NULL.
* linux/aarch64/set_scno.c: Note the kernel commit that introduced
NT_ARM_SYSTEM_CALL support.
* linux/arm/set_scno.c: Note the kernel commit that introduced
PTRACE_SET_SYSCALL support.
* linux/sparc/set_scno.c: Note the kernel commit that introduced
reloading from the syscall number register.
While -r option implies -t, it should not literally have the effect
of -t option, e.g. -rr should not increment tflag twice.
* strace.c (init): In the getopt loop, do not increment tflag for each
occurrence of -r option. After the getopt loop, if rflag is set, set
tflag to 1. Issue a warning that -tt has no effect with -r.
* print_timeval.c (print_timeval_item): New function.
(print_timeval_pair): Use it as a print_function in print_array call.
* tests/futimesat.c (main): Update to test new behaviour.
* tests/utimes.c (main): Likewise.
* defs.h [ALPHA] (timeval32_t): New type.
[ALPHA] (print_timeval32_t): New prototype.
* print_timeval.c [ALPHA] (timeval32_t): Remove.
[ALPHA] (print_timeval32_t): Remove static keyword.
* printrusage.c [ALPHA] (printrusage32): Use timeval32_t instead
of local definition of struct timeval32. Use print_timeval32_t.
After commit v4.14-136-g151d1d1 that removed the last object common
for timespec and timeval parsers there is no need to keep them all
in a single file.
* print_timespec.c: New file.
* print_timeval.c: Likewise.
* Makefile.am (strace_SOURCES): Add them.
* print_time.c: Move all timespec related code to print_timespec.c.
Move all timeval related code to print_timeval.c.
Do not assume that some syscalls do not generate syscall-exit-stops.
When syscalls fail for any reason they may generate syscall-exit-stops.
The solution is to wait for an actual exit reported by PTRACE_EVENT_EXIT
and print the end of unfinished exiting syscall properly.
* exit.c: Remove.
* Makefile.am (strace_SOURCES): Remove exit.c.
* linux/dummy.h (sys_exit): Alias to printargs_d.
* strace.c (ptrace_setoptions): Add PTRACE_O_TRACEEXIT bit.
(print_event_exit): New function.
(trace): Use it in case of PTRACE_EVENT_EXIT.
* syscall.c (trace_syscall_entering): Remove special handling
of SEN_exit.
As printargs is invoked as a generic syscall decoder only and
it is not supposed to print anything on exiting, change printargs
to return RVAL_DECODED so it would not be called on exiting at all.
* util.c (printargs): Print args unconditionally, return RVAL_DECODED.
