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* defs.h (upeek, upoke): Change offset argument type from long
to unsigned long. Change res argument type from long to kernel_ureg_t.
* upeek.c (upeek): Likewise.
* upoke.c (upoke.c): Likewise.
* syscall.c (print_pc) [ARCH_PC_PEEK_ADDR]: Change pc type from long
to kernel_ureg_t.
* linux/aarch64/arch_regs.c (arm_sp_ptr): Remove redundant cast.
* linux/metag/get_syscall_args.c (get_syscall_args): Likewise.
* linux/sh/get_syscall_result.c (get_syscall_result_regs): Likewise.
* linux/sh64/get_syscall_result.c (get_syscall_result_regs): Likewise.
* linux/powerpc/getregs_old.c (getregs_old): Remove redundant casts.
* linux/alpha/arch_getrval2.c (getrval2): Change r20 type from long
to unsigned long.
* linux/alpha/arch_regs.c (alpha_r0, alpha_a3): Change type from long
to unsigned long.
* linux/bfin/arch_regs.c (bfin_r0): Likewise.
* linux/crisv10/arch_regs.c (cris_r10): Likewise.
* linux/hppa/arch_regs.c (hppa_r28): Likewise.
* linux/ia64/arch_regs.c (IA64_PSR_IS): Likewise.
* linux/microblaze/arch_regs.c (microblaze_r3): Likewise.
* linux/sh/arch_regs.c (sh_r0): Likewise.
* linux/sh64/arch_regs.c (sh64_r9): Likewise.
* linux/xtensa/arch_regs.c (xtensa_a2): Likewise.
* linux/alpha/arch_sigreturn.c (arch_sigreturn): Change addr type
from long to unsigned long.
* linux/microblaze/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/alpha/get_scno.c (arch_get_scno): Update for the change
of signedness.
* linux/arc/get_syscall_args.c (get_syscall_args): Change arc_args type
from pointer to long to pointer to unsigned long.
* linux/arm/arch_regs.c (arm_sp_ptr): Change type from pointer to long
to pointer to unsigned long.
* linux/arm/arch_regs.h (arm_sp_ptr): Likewise.
* linux/i386/arch_regs.c (i386_esp_ptr): Likewise.
* linux/i386/arch_regs.h (i386_esp_ptr): Likewise.
* linux/m68k/arch_regs.c (m68k_usp_ptr): Likewise.
* linux/m68k/arch_regs.h (m68k_usp_ptr): Likewise.
* linux/ia64/get_syscall_args.c (get_syscall_args): Use umove
instead of umoven.
* linux/sh/arch_getrval2.c (getrval2): Change val type from long
to unsigned long.
* defs.h (decode_netlink): Change len argument type from unsigned long
to kernel_ureg_t.
* netlink.c (fetch_nlmsghdr): Likewise.
(decode_nlmsghdr_with_payload): Likewise. Change nlmsg_len variable
type from unsigned long to unsigned int.
(decode_netlink): Change the type of len argument and next_len variable
from unsigned long to kernel_ureg_t. Change nlmsg_len variable type
from unsigned long to unsigned int.
* defs.h (dumpiov_upto): Change data_size argument type
from unsigned long to kernel_ureg_t.
* util.c (dumpiov_upto): Change the type of data_size argument
and iov_len variable from unsigned long to kernel_ureg_t.
* defs.h (dumpiov_in_msghdr): Change data_size argument type
from unsigned long to kernel_ureg_t.
* msghdr.h (print_struct_msghdr): Likewise.
* msghdr.c (print_struct_msghdr): Likewise. Cast msghdr.msg_iovlen
and msghdr.msg_controllen to kernel_ureg_t instead of unsigned long.
(decode_msghdr, dumpiov_in_msghdr): Change data_size argument type
from unsigned long to kernel_ureg_t.
(SYS_FUNC(sendmsg)): Pass -1 instead of -1UL as data_size argument
to decode_msghdr.
* mmsghdr.c (print_struct_mmsghdr): Pass (kernel_ureg_t) -1 instead
of -1UL as data_size argument to print_struct_msghdr.
(dumpiov_in_mmsghdr): Cast msghdr.msg_iovlen to kernel_ureg_t instead
of unsigned long.
* syscall.c (dumpio): Pass -1 instead of -1UL as data_size argument
to dumpiov_in_msghdr
* defs.h (tprint_iov_upto): Change the type of len and data_size
arguments from unsigned long to kernel_ureg_t.
(tprint_iov): Change the type of len argument from unsigned long
to kernel_ureg_t.
* io.c (print_iovec_config): Change data_size type from unsigned long
to kernel_ureg_t.
(print_iovec): Change the type of *iov, iov_buf, and len variables
from unsigned long to kernel_ureg_t.
(tprint_iov_upto): Change the type of len and data_size arguments, and
the type of iov variable from unsigned long to kernel_ureg_t.
* defs.h (print_sigset_addr_len): Change len argument type from long
to kernel_ureg_t.
* signal.c (print_sigset_addr_len_limit, print_sigset_addr_len): Likewise.
As about half of all printstr uses cases are invocations with the last
argument set to -1, create a dedicated function for this use case.
* defs.h (printstr): Rename to printstrn. All callers updated.
(printstr): New static inline function. All callers updated.
* defs.h [ALPHA] (printrusage32): Change address argument type
from long to kernel_ureg_t.
* printrusage.c (printrusage): Likewise.
[ALPHA] (printrusage32): Likewise.
* wait.c (printwaitn): Change the type of tracee address argument
of print_rusage from long to kernel_ureg_t.
* defs.h [ALPHA] (sprint_timeval32, print_timeval32,
print_timeval32_pair, print_itimerval32): Change address argument type
from long to kernel_ureg_t.
* desc.c (decode_select): Change the type of tracee address argument
of print_tv_ts and sprint_tv_ts from long to kernel_ureg_t.
* print_timespec.c (print_timespec, sprint_timespec,
print_timespec_utime_pair, print_itimerspec): Change address argument
type from long to kernel_ureg_t.
* print_timeval.c (print_timeval, print_timeval_pair, sprint_timeval,
print_itimerval, print_timeval32, print_timeval32_pair,
print_itimerval32, sprint_timeval32): Likewise.
* defs.h (DECL_IOCTL): Change arg type from long to kernel_ureg_t.
* dm.c (dm_known_ioctl, dm_ioctl): Likewise.
* file_ioctl.c (file_ioctl): Likewise.
* fs_x_ioctl.c (fs_x_ioctl): Likewise.
* ioctl.c (ioctl_decode): Likewise.
* loop.c (decode_loop_info, decode_loop_info64): Change addr type
from long to kernel_ureg_t.
(loop_ioctl): Change arg type from long to kernel_ureg_t.
* ptp.c (ptp_ioctl): Likewise.
* scsi.c (print_sg_io_v3_req, print_sg_io_v3_res, print_sg_io_v4_req,
print_sg_io_v4_res, scsi_ioctl): Likewise.
* sock.c (print_ifreq, sock_ioctl): Likewise.
(decode_ifconf): Change addr type from long to kernel_ureg_t.
* term.c (decode_termios, decode_termio, decode_winsize, decode_ttysize,
decode_modem_flags): Likewise.
(term_ioctl): Change arg type from long to kernel_ureg_t.
* ubi.c (ubi_ioctl): Likewise.
* userfaultfd.c (uffdio_ioctl): Likewise.
* defs.h [HAVE_STRUCT_USER_DESC] (print_user_desc): Change address
argument type from long to kernel_ureg_t.
* ldt.c [HAVE_STRUCT_USER_DESC] (print_user_desc): Likewise.
* defs.h (print_sigset_addr_len) Change address argument type from long
to kernel_ureg_t.
* signal.c (print_sigset_addr_len_limit, print_sigset_addr_len,
decode_old_sigaction, decode_new_sigaction): Likewise.
* defs.h (DECL_PRINTNUM, DECL_PRINTPAIR, printnum_long_int): Change
address argument type from long to kernel_ureg_t.
* util.c (DEF_PRINTNUM, DEF_PRINTPAIR, printnum_long_int): Likewise.
* defs.h (umovestr, umoven, umoven_or_printaddr,
umoven_or_printaddr_ignore_syserror): Change tracee address argument
type from long to kernel_ureg_t.
(print_array): Change the type of tracee address argument of umoven_func
from long to kernel_ureg_t.
* util.c (vm_read_mem, umovestr, umoven, umoven_or_printaddr,
umoven_or_printaddr_ignore_syserror): Change tracee address argument
type from long to kernel_ureg_t.
(print_array): Change the type of tracee address argument of umoven_func
from long to kernel_ureg_t.
* desc.c (umove_kulong_array_or_printaddr): Change tracee address
argument type from long to kernel_ureg_t.
* mmsghdr.c (fetch_struct_mmsghdr_or_printaddr): Likewise.
* defs.h (decode_netlink) Change address argument type
from unsigned long to kernel_ureg_t.
* netlink.c (fetch_nlmsghdr, decode_nlmsghdr_with_payload,
decode_netlink): Likewise.
* defs.h (print_seccomp_filter, print_seccomp_fprog): Change
address argument type from unsigned long to kernel_ureg_t.
* seccomp.c (print_seccomp_filter, print_seccomp_fprog,
decode_seccomp_set_mode_strict): Likewise.
* defs.h (tprint_iov, tprint_iov_upto): Change address argument type
from unsigned long to kernel_ureg_t.
* io.c (tprint_iov, tprint_iov_upto): Likewise.
* defs.h (print_array): Change start_addr type from unsigned long
to kernel_ureg_t.
* util.c (print_array): Likewise. Change the type of all tracee
address variables from unsigned long to kernel_ureg_t.
In all places where LONG_LONG is used the destination already has type
unsigned long long, so it is quite natural to change LONG_LONG as well.
* defs.h (LONG_LONG): Rename to ULONG_LONG, change return type
from long long to unsigned long long. All callers updated.
x32 syscalls starting with number 512 are compat syscalls that operate
on compat types. Set COMPAT_SYSCALL_TYPES flag to these syscall entries
and make get_syscall_args truncate arguments of syscalls that have this
flag set, to avoid unpleasant alternative of adding multiple
widen_to_ulong invocations to individual syscall parsers.
preadv, pwritev, preadv2, and pwritev2 are exceptions: while these
syscalls operate on compat types, the offset argument has a regular
64-bit type, so the automatic argument truncation cannot be applied.
* defs.h (COMPAT_SYSCALL_TYPES): New macro.
* syscall.c (CST): New macro, defined to COMPAT_SYSCALL_TYPES.
* linux/ia64/syscallent.h: Do not include "../i386/syscallent.h"
unless [CST > 0].
* linux/x32/syscallent.h [512..533, 536..545]: Add CST flag.
* linux/x86_64/get_syscall_args.c (get_syscall_args): Truncate arguments
of compat syscalls to 32-bit values.
* tests/ksysent.c (CST): New macro, defined to 0.
* tests/nsyscalls.c (CST): Likewise.
* defs.h (printaddr_ull): Rename to printaddr_klu, change argument
type from unsigned long long to kernel_ulong_t. All callers updated.
(getarg_ull): Rename to getarg_klu, change return value type
from unsigned long long to kernel_ulong_t. All callers updated.
(PRI_kl, PRI_kld, PRI_klu, PRI_klx): New macros.
* bjm.c (SYS_FUNC(init_module)): Print kernel_ulong_t type using
PRI_klu format.
* desc.c (SYS_FUNC(pselect6)): Likewise.
* fadvise.c (SYS_FUNC(fadvise64)): Likewise.
* lookup_dcookie.c (SYS_FUNC(lookup_dcookie)): Likewise.
* mq.c (SYS_FUNC(mq_timedsend), SYS_FUNC(mq_timedreceive)): Likewise.
* kcmp.c (SYS_FUNC(kcmp)): Print kernel_ulong_t type using
PRI_klx format.
* keyctl.c (SYS_FUNC(keyctl)): Likewise.
* pkeys.c (SYS_FUNC(pkey_alloc)): Likewise.
* prctl.c (print_prctl_args, SYS_FUNC(prctl), SYS_FUNC(arch_prctl)):
Print kernel_ulong_t type using PRI_kld, PRI_klu, or PRI_klx format.
* util.c (printaddr_ull): Rename to printaddr_klu, change argument
type from unsigned long long to kernel_ulong_t, print it using
PRI_klx format.
(getarg_ull): Rename to getarg_klu, change return value type
from unsigned long long to kernel_ulong_t, print it using
PRI_klx format.
This function has never been used in the code, and in perspective
the whole ext_arg thing will go away.
* defs.h (getarg_ll): Remove prototype.
* util.c (getarg_ll): Remove.
This is the first step in the direction of revisiting current practice
of indiscriminate use of signed types for syscall arguments and memory
addresses.
* kernel_types.h (kernel_ureg_t): New type, typedef to unsigned long.
* defs.h (struct tcb): Change type of u_arg from long to kernel_ureg_t.
[HAVE_STRUCT_TCB_EXT_ARG]: Change type of ext_arg from long long
to unsigned long long.
* desc.c (decode_select): Change type of syscall arguments from long
to kernel_ureg_t.
(SYS_FUNC(oldselect)): Change type of select_args from long
to kernel_ureg_t.
* io.c (print_lld_from_low_high_val): Remove no longer needed cast
of syscall arguments to unsigned long.
* lseek.c (SYS_FUNC(lseek)): Cast syscall argument from unsigned long
to long.
* mem.c (print_mmap): Change type of syscall arguments from long
to kernel_ureg_t.
(SYS_FUNC(old_mmap), SYS_FUNC(old_mmap_pgoff)): Change type of u_arg
from long to kernel_ureg_t.
(SYS_FUNC(mmap), SYS_FUNC(mmap_pgoff), SYS_FUNC(mmap_pgoff)): Remove
no longer needed cast of syscall arguments to unsigned long.
* pathtrace.c (pathtrace_match): Change type of args and select_args
from long to kernel_ureg_t.
* util.c (getarg_ull): Remove no longer needed casts of syscall
arguments to unsigned types.
Use an unsigned type for syscall numbers as they are not intended
for signed arithmetics. Introduce kernel_scno_t as a typedef
to unsigned long, that could be changed later to kernel_ulong_t.
* kernel_types.h (kernel_scno_t): New type, typedef to unsigned long.
* defs.h (struct tcb): Change type of scno field from long
to kernel_scno_t.
(syscall_name): Change argument type from long to kernel_scno_t.
(scno_in_range, scno_is_valid): Change argument type from unsigned long
to kernel_scno_t.
* linux/aarch64/set_scno.c (arch_set_scno): Change scno argument type
from long to kernel_scno_t.
* linux/alpha/set_scno.c (arch_set_scno): Likewise.
* linux/arc/set_scno.c (arch_set_scno): Likewise.
* linux/arm/set_scno.c (arch_set_scno): Likewise.
* linux/avr32/set_scno.c (arch_set_scno): Likewise.
* linux/bfin/set_scno.c (arch_set_scno): Likewise.
* linux/crisv10/set_scno.c (arch_set_scno): Likewise.
* linux/hppa/set_scno.c (arch_set_scno): Likewise.
* linux/i386/set_scno.c (arch_set_scno): Likewise.
* linux/ia64/set_scno.c (arch_set_scno): Likewise.
* linux/m68k/set_scno.c (arch_set_scno): Likewise.
* linux/metag/set_scno.c (arch_set_scno): Likewise.
* linux/microblaze/set_scno.c (arch_set_scno): Likewise.
* linux/mips/set_scno.c (arch_set_scno): Likewise.
* linux/nios2/set_scno.c (arch_set_scno): Likewise.
* linux/or1k/set_scno.c (arch_set_scno): Likewise.
* linux/powerpc/set_scno.c (arch_set_scno): Likewise.
* linux/riscv/set_scno.c (arch_set_scno): Likewise.
* linux/s390/set_scno.c (arch_set_scno): Likewise.
* linux/sh/set_scno.c (arch_set_scno): Likewise.
* linux/sh64/set_scno.c (arch_set_scno): Likewise.
* linux/sparc/set_scno.c (arch_set_scno): Likewise.
* linux/tile/set_scno.c (arch_set_scno): Likewise.
* linux/x86_64/set_scno.c (arch_set_scno): Likewise.
* linux/xtensa/set_scno.c (arch_set_scno): Likewise.
* linux/aarch64/get_scno.c (arch_get_scno): Change scno variable type
from long to kernel_scno_t.
* linux/alpha/get_scno.c (arch_get_scno): Likewise.
* linux/arm/get_scno.c (arch_get_scno): Likewise.
* linux/sh/get_scno.c (arch_get_scno): Likewise.
* linux/x86_64/get_scno.c (arch_get_scno): Likewise.
* syscall.c (arch_set_scno): Likewise.
(shuffle_scno): Change return type from long to kernel_scno_t.
(syscall_name): Change argument type from long to kernel_scno_t.
* defs.h (signal_set): New variable prototypes.
(qualify_signals): New function prototypes.
(QUAL_SIGNAL): Change to a value greater than 0xff.
(QUAL_FAULT): Change to a lower value.
* qualify.c (signal_set): New variable.
(sigstr_to_uint, qualify_signals): New functions.
* syscall.c (qual_signal): Remove.
(qual_options): Replace qual_signal with NULL.
(qualify): Use qualify_signals.
* strace.c (print_signalled, print_stopped): Use is_number_in_set
with signal_set argument.
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.
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.
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.
* 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.
A simultaneous use of -p option and tracing of a command available
since commit v4.11-183-gfa8c286 introduces a race condition because
the flags whether the first exec has happened are global.
Fix the race by moving hide_log_until_execve and hide_log_until_execve
global variables to TCB_HIDE_LOG and TCB_SKIP_DETACH_ON_FIRST_EXEC bits
in struct tcb.flags, correspondingly.
* defs.h (TCB_HIDE_LOG, TCB_SKIP_DETACH_ON_FIRST_EXEC, hide_log):
New macros.
(hide_log_until_execve): Remove prototype.
* strace.c (skip_one_b_execve, hide_log_until_execve): Remove.
(startup_child): Set TCB_HIDE_LOG and TCB_SKIP_DETACH_ON_FIRST_EXEC bits
in the allocated tcb structure.
(init): Remove initialization of hide_log_until_execve and
skip_one_b_execve.
(print_stopped): Use hide_log() instead of hide_log_until_execve.
(trace): Check and clear TCB_SKIP_DETACH_ON_FIRST_EXEC flag instead
of skip_one_b_execve.
* syscall.c (trace_syscall_entering): Clear TCB_HIDE_LOG flag instead of
hide_log_until_execve.
(trace_syscall_entering, trace_syscall_exiting): Check hide_log()
instead of hide_log_until_execve.
