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xlat tables are usually generated at build time.
printxval is suitable for printing struct nlmsghdr.nlmsg_type for
NETLINK_GENERIC protocol. However, the corresponding xlat table
cannot be defined at build time because the values are registered
by the kernel at run time.
This change introduces dyxlat functions for building xlat tables
dynamically. The primary use case is decoding nlmsg_type but this
interface can be used for other purposes.
* defs.h (struct dyxlat): New opaque data type.
(dyxlat_alloc, dyxlat_free, dyxlat_add_pair): New function declarations.
* dyxlat.c: New file.
* Makefile.am (strace_SOURCES): Add it.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
* linux/smc_diag.h: New file.
* Makefile.am (EXTRA_DIST): Add it.
* netlink_sock_diag.c: Include <linux/smc_diag.h>,
"xlat/smc_diag_extended_flags.h" and "xlat/smc_states.h".
(decode_smc_diag_req, decode_smc_diag_msg): New functions.
(diag_decoders): Add AF_SMC.
* xlat/smc_diag_extended_flags.in: New file.
* xlat/smc_states.in: Likewise.
* defs.h (netlink_decoder_t): New typedef.
(DECL_NETLINK): New macro.
(decode_netlink_sock_diag): New prototype.
* netlink.c (netlink_decoders): New array.
(decode_payload): Use it to invoke netlink family specific decoders.
* netlink_sock_diag.c: New file.
* Makefile.am (strace_SOURCES): Add it.
Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
Co-authored-by: JingPiao Chen <chenjingpiao@gmail.com>
Also do not include them into release tarballs. These files are
intended for developers who are expected to use a git repository.
* errnoent.sh: Move to maint subdirectory.
* signalent.sh: Likewise.
* syscallent.sh: Likewise.
* HACKING-scripts: Update.
* Makefile.am (EXTRA_DIST): Remove errnoent.sh, signalent.sh,
and syscallent.sh.
These files are intended for developers who are expected to use
a git repository.
* Makefile.am (EXTRA_DIST): Remove maint/ioctls_gen.sh,
maint/ioctls_hex.sh, maint/ioctls_sym.sh, and maint/print_ioctlent.c.
This solves problems like the need to update test suite on every
New Year's Eve.
* Makefile.am (dist-hook): Generate .year.
* copyright-year-gen: New file.
* configure.ac (copyright_year): New m4 variable, defined as the output
of copyright-year-gen script.
(AC_COPYRIGHT): Use it.
(COPYRIGHT_YEAR): New output variable and preprocessor macro.
* strace.c (print_version): Use COPYRIGHT_YEAR.
* strace.spec.in (%prep): Save the value of COPYRIGHT_YEAR autoconf
variable to .year file.
* tests/strace-V.test (config_year): New variable, derived from config.h.
Add sanity checks for $config_year and use it in expected output.
Reported-by: Andreas Schwab <schwab@suse.de>
As there is no sigreturn syscall on ia64, mips n32, mips n64, x32,
and x86_64, no longer used parsers could be safely removed.
* linux/ia64/arch_sigreturn.c: Remove.
* Makefile.am (EXTRA_DIST): Remove it.
* linux/mips/arch_sigreturn.c (arch_sigreturn): Remove [!LINUX_MIPSO32].
* linux/x86_64/arch_sigreturn.c (arch_sigreturn): Remove.
All architectures have rt_sigreturn, but only old ones also have
sigreturn. Since not all architectures need a parser of sigreturn
syscall, remove the warning and move the parser to libstrace.
* Makefile.am (strace_SOURCES): Move sigreturn.c ...
(libstrace_a_SOURCES): ... here.
* linux/arch_sigreturn.c: Remove warning.
Export SP register for later use by get_rt_sigframe_addr.
* linux/riscv/arch_regs.h: New file.
* Makefile.am (EXTRA_DIST): Add it.
* linux/riscv/arch_regs.c (riscv_sp_ptr): New variable.
Export SP register for later use by get_rt_sigframe_addr.
* linux/or1k/arch_regs.h: New file.
* Makefile.am (EXTRA_DIST): Add it.
* linux/or1k/arch_regs.c (or1k_sp_ptr): New variable.
Export SP register for later use by get_rt_sigframe_addr.
* linux/nios2/arch_regs.h: New file.
* Makefile.am (EXTRA_DIST): Add it.
* linux/nios2/arch_regs.c (nios2_sp_ptr): New variable.
Export SP register for later use by get_rt_sigframe_addr.
* linux/metag/arch_regs.h: New file.
* Makefile.am (EXTRA_DIST): Add it.
* linux/metag/arch_regs.c (metag_sp_ptr): New variable.
Export SP register for later use by get_rt_sigframe_addr.
* linux/avr32/arch_regs.h: New file.
* Makefile.am (EXTRA_DIST): Add it.
* linux/avr32/arch_regs.c (avr32_sp_ptr): New variable.
Export SP register for later use by get_rt_sigframe_addr.
* linux/arc/arch_regs.h: New file.
* Makefile.am (EXTRA_DIST): Add it.
* linux/arc/arch_regs.c (arc_sp_ptr): New variable.
Avoid multiple defintions of struct sched_attr by creating a separate
header file with its definition and using it in other places.
* sched_attr.h: New file.
* Makefile.am (strace_SOURCES): Add it.
* sched.c: Include it.
(print_sched_attr): Use it.
* tests/sched_xetattr.c: Include it.
(main): Use it.
* Makefile.am (m%_type_defs.h): Change sed regular expression to allow
arbitrary number of whitespace characters between "#" symbol
and "include" directive.
When cross-compiling, ioctlsort must obtain _IOC_* values from the
host, build's values may be incompatible.
* ioctl_iocdef.c: New file.
* Makefile.am (EXTRA_DIST): Add it.
(ioctl_iocdef.i, ioctl_iocdef.h): New rules.
(ioctlsort%.o): Depend on ioctl_iocdef.h.
(CLEANFILES): Add ioctl_iocdef.h and ioctl_iocdef.i.
* ioctlsort.c: Include "ioctl_iocdef.h" instead of <linux/ioctl.h>.
Signed-off-by: Alexey Neyman <stilor@att.net>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
* print_sg_req_info.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* xlat/sg_scsi_reset.in: New file.
* scsi.c: Include "xlat/sg_scsi_reset.h".
(scsi_ioctl): Implement decoding of all SG_* ioctl commands.
Drop custom vfprintf implementation that was disabled by default.
Apparently nobody tests strace with this vfprintf enabled, otherwise
multiple uses of format specifiers not supported by this custom vfprintf
would not left unnoticed.
The GNU C library is not the only libc available, so those who want
faster implementations of libc functions are encouraged to try building
strace with other libc implementations.
* vsprintf.c: Remove.
* Makefile.am (strace_SOURCES): Remove vsprintf.c.
* defs.h (USE_CUSTOM_PRINTF, strace_vfprintf): Remove.
* strace.c (tprintf): Replace strace_vfprintf with vfprintf.
Generate scno.h using only those tools that are available for cross
build. This allows to use scno.h during the build of strace itself.
* scno.am: New file.
* scno.head: New file.
* Makefile.am (EXTRA_DIST): Add it.
* tests/generate_scno.c: Remove.
* tests/.gitignore: Remove generate_scno.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(CLEANFILES): Remove scno.h.
(scno.h, $(scno_dependants)): Remove rules.
(scno_dependants): Remove.
($(objects)): New rule.
Include ../scno.am.
* print_dev_t.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* defs.h (print_dev_t): New prototype.
* dm.c: Do not include <sys/sysmacros.h>.
(dm_decode_device, dm_print_dev, dm_decode_dm_name_list): Use
print_dev_t function for printing device numbers.
* mknod.c: Do not include <sys/sysmacros.h>.
(decode_mknod): Use print_dev_t function for printing device number.
* print_struct_stat.c: Do not include <sys/sysmacros.h>.
(print_struct_stat): Use print_dev_t function for printing device
numbers.
Co-authored-by: Dmitry V. Levin <ldv@altlinux.org>
Commit dc427d50d96b15c9a64d7e78d97ce4d194622a63 enabled a number of extra
warning flags through configure.ac. The configure script will determine
dynamically if CC supports these flags before adding them to WARN_CFLAGS.
ioctlsort is compiled with CC_FOR_BUILD, rather than CC. Nevertheless,
the flags passed to this compilation also include WARN_CFLAGS (through
AM_CFLAGS). This is incorrect: in a cross-compilation use case, CC
and CC_FOR_BUILD are not the same. The former is the cross-compiler,
the latter is the host compiler. Both may be of different versions
and support different warning flags.
In particular, this posed a problem when cross-compiling with a host
compiler gcc 4.1, which does not support all the new flags:
/usr/bin/gcc -DHAVE_CONFIG_H -I./linux/arm -I./linux/arm -I./linux
-I./linux -I. -I. -I/host-sysroot/usr/include -Wall -Wempty-body
-Wformat-security -Wignored-qualifiers -Winit-self -Wlogical-op
-Wmissing-parameter-type -Wnested-externs -Wold-style-declaration
-Wold-style-definition -Wsign-compare -Wtype-limits -Wwrite-strings -O2
-I/host-sysroot/usr/include -DIOCTLSORT_INC=\"ioctls_all0.h\" -c -o
ioctlsort0.o ./ioctlsort.c
cc1: error: unrecognized command line option "-Wempty-body"
cc1: error: unrecognized command line option "-Wignored-qualifiers"
cc1: error: unrecognized command line option "-Wlogical-op"
cc1: error: unrecognized command line option "-Wmissing-parameter-type"
cc1: error: unrecognized command line option "-Wold-style-declaration"
cc1: error: unrecognized command line option "-Wtype-limits"
make[2]: *** [ioctlsort0.o] Error 1
* Makefile.am (AM_CFLAGS_FOR_BUILD, AM_CPPFLAGS_FOR_BUILD): New
variables.
(ioctlsort_CPPFLAGS): Use AM_CPPFLAGS_FOR_BUILD instead of AM_CPPFLAGS.
(ioctlsort_CFLAGS): Use AM_CFLAGS_FOR_BUILD instead of AM_CFLAGS.
(ioctlsort_LDFLAGS): Use AM_LDFLAGS_FOR_BUILD instead of AM_LDFLAGS.
* m4/ax_prog_cc_for_build.m4 (AX_PROG_CC_FOR_BUILD): Redirect
WARN_CFLAGS and gl_unknown_warnings_are_errors, call st_WARN_CFLAGS,
substitute WARN_CFLAGS_FOR_BUILD.
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
As a side effect, this also fixes support of negated sets
of descriptors.
* defs.h (struct number_set): New forward declaration.
(read_set, write_set): New variable prototypes.
(is_number_in_set, qualify_read, qualify_write): New function
prototypes.
(QUAL_READ, QUAL_WRITE): Change to values greater than 0xff.
* qualify.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* syscall.c (qual_desc): Remove.
(qual_options): Replace qual_desc with NULL.
(qualify): Use qualify_read and qualify_write.
(dumpio): Use is_number_in_set.
* tests/options-syntax.test: Check invalid sets of descriptors.
* tests/readv.test: Check dumping of negated sets of descriptors.
As valgrind is not quite happy about the way how get_cpuset_size uses
sched_getaffinity, add a suppression file for this case.
* valgrind.supp: New file.
* Makefile.am (EXTRA_DIST): Add it.
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.
The incomplete CRIS support introduced by commit v4.5.18-77-gea0e6e8
should not have been merged because it lacks essential parts, e.g.
syscall tables.
This change adds missing syscall tables for crisv10 and crisv32.
* linux/crisv10/syscallent.h: New file.
* linux/crisv32/syscallent.h: Likewise.
* Makefile.am (EXTRA_DIST): Add them.
This change moves remaining arch specific getregs_old code into
appropriate arch subdirectories and removes unnecessary code
duplication.
* linux/getregs_old.h: New file.
* linux/powerpc/getregs_old.h: Likewise.
* linux/powerpc64/getregs_old.h: Likewise.
* linux/x86_64/getregs_old.h: Likewise.
* Makefile.am (EXTRA_DIST): Add them.
* syscall.c: Include "getregs_old.h".
[X86_64 || POWERPC]: Remove.
[ARCH_REGS_FOR_GETREGSET] (ptrace_getregset_or_getregs): Define
to ptrace_getregset.
[ARCH_REGS_FOR_GETREGS] (ptrace_getregset_or_getregs): Define
to ptrace_getregs.
(get_regs): Check for ptrace_getregset_or_getregs instead
of ARCH_REGS_FOR_GETREGSET and ARCH_REGS_FOR_GETREGS. Use
ptrace_getregset_or_getregs instead of ptrace_getregset and
ptrace_getregs. Check for HAVE_GETREGS_OLD instead of X86_64
and POWERPC. Use use_getregs_old instead of getregset_support
and old_kernel.
This will be needed to implement fault injection on those architectures
that lack PTRACE_SETREGSET/PTRACE_SETREGS support.
* defs.h (upoke): New prototype.
* upoke.c: New file.
* Makefile.am (libstrace_a_SOURCES): Add it.
