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* defs.h (struct tcb): Change u_rval type from long to kernel_long_t.
(PRI_krd, PRI_kru, PRI_krx): Redirect to PRI_kld, PRI_klu, and PRI_klx.
* kernel_types.h (kernel_scno_t, kernel_ureg_t): Redirect
to kernel_ulong_t.
Prepare for the change of kernel_ureg_t and kernel_scno_t from
unsigned long to kernel_ulong_t.
* defs.h (PRI_krd, PRI_kru, PRI_krx): New temporary macros.
All users updated.
When sizeof(kernel_ureg_t) > sizeof(long), the tracee address passed
to vm_read_mem could be silently truncated. Detect this situation
and return EIO when the tracee address does not fit into unsigned long.
* util.c (vm_read_mem): Save raddr argument into a temporary variable
truncated_raddr of type unsigned long. Set errno to EIO and return -1
when truncated_raddr does not equal to raddr.
Change type of sa_handler and sa_restorer fields from function pointers
to unsigned long. This saves the code from a lot of casts between
pointers and integers.
Rename __sa_handler to sa_handler__ as names starting with underscore
symbol are reserved and should not be used.
* signal.c (old_sigaction): Rename __sa_handler to sa_handler__,
all users updated. Change the type of sa_handler__ and sa_restorer
from pointer to unsigned long.
(old_sigaction32): Rename __sa_handler to sa_handler__, all users
updated.
(decode_old_sigaction): Remove now redundant casts from
old_sigaction32.sa_handler__ to old_sigaction.sa_handler__,
from old_sigaction32.sa_restorer to old_sigaction.sa_restorer,
and from old_sigaction.sa_handler__ to unsigned long. Print
old_sigaction.sa_restorer using printaddr.
* signal.c (new_sigaction): Rename __sa_handler to sa_handler__,
all users updated. Change the type of sa_handler__ and sa_restorer
from pointer to unsigned long.
(new_sigaction32): Rename __sa_handler to sa_handler__, all users
updated.
(decode_new_sigaction): Remove now redundant casts from
new_sigaction32.sa_handler__ to new_sigaction.sa_handler__,
from new_sigaction32.sa_restorer to new_sigaction.sa_restorer,
and from new_sigaction.sa_handler__ to unsigned long. Print
new_sigaction.sa_restorer using printaddr.
The flags argument is defined in kernel as unsigned long,
so change its decoding to avoid truncation.
* clone.c (SYS_FUNC(clone)): Change flags type from unsigned long
to kernel_ureg_t, print it using printflags64 instead of printflags.
After the change of tcb.u_arg type from long to kernel_ureg_t it is safe
to stop using printxval_long proxy and pass syscall arguments directly
to printxval64.
* defs.h (printxval_long): Remove.
* fcntl.c (print_fcntl): Replace printxval_long with printxval64.
* mtd.c (mtd_ioctl): Likewise.
* numa.c (SYS_FUNC(mbind)): Likewise.
* or1k_atomic.c [OR1K] (SYS_FUNC(or1k_atomic)): Likewise.
* sysmips.c [MIPS] (SYS_FUNC(sysmips)): Likewise.
* term.c (term_ioctl): Likewise.
After the change of tcb.u_arg type from long to kernel_ureg_t it is safe
to stop using printflags_long proxy and pass syscall arguments directly
to printflags64.
* defs.h (printflags_long): Remove.
* fcntl.c (print_fcntl): Replace printflags_long with printflags64.
* numa.c (SYS_FUNC(get_mempolicy)): Likewise.
* perf.c (SYS_FUNC(perf_event_open)): Likewise.
* sram_alloc.c [BFIN] (SYS_FUNC(sram_alloc)): Likewise.
* 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.
* linux/arm/arch_sigreturn.c (arch_sigreturn): Change addr variable
type from long to unsigned long.
* linux/ia64/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/m68k/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/powerpc/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/s390/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/sparc/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/tile/arch_sigreturn.c (arch_sigreturn): Likewise.
* linux/crisv10/arch_sigreturn.c (arch_sigreturn): Change the type
of addr and regs variables from long to unsigned long.
* linux/mips/arch_sigreturn.c (arch_sigreturn): Change addr variable
type from long to kernel_ureg_t.
* linux/x86_64/arch_sigreturn.c (arch_sigreturn): Change the type
of offset and addr variables from long to kernel_ureg_t.
* kexec.c (SYS_FUNC(kexec_load)): Change n variable type
from unsigned long to kernel_ureg_t. Use printxval64 instead
of printxval_long. Use printflags64 instead of printflags_long.
* kexec.c (print_seg): Change the type of *seg and seg_buf variables
from unsigned long to kernel_ureg_t.
(print_kexec_segments): Change len argument type from unsigned long
to kernel_ureg_t. Change seg variable type from unsigned long
to kernel_ureg_t.
* 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.
* ipc_msg.c (tprint_msgsnd): Change count argument type
from unsigned long to kernel_ureg_t. Change flags argument type
from unsigned long to unsigned int.
(tprint_msgrcv): Change the type of count and msgtyp arguments
from unsigned long to kernel_ureg_t.
(fetch_msgrcv_args): Change *pair type from unsigned long
to kernel_ureg_t.
(SYS_FUNC(msgrcv)): Change pair type from unsigned long
to kernel_ureg_t.
* print_msgbuf.c (tprint_msgbuf): Change count argument type
from unsigned long to kernel_ureg_t.
* 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.
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
* 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.
* mem.c (print_mmap): Change the type of len, prot, and flags
from unsigned long to kernel_ureg_t. Use printflags64 instead
of printflags_long. Use printxval64 instead of printxval_long.
(SYS_FUNC(old_mmap)): Check for current_klongsize instead
of [AARCH64 || X86_64] to take X32 into account.
(SYS_FUNC(mremap)): Use printflags64 instead of printflags_long.
(SYS_FUNC(remap_file_pages)): Change the type of size, prot, pgoff, and
flags from unsigned long to kernel_ureg_t. Use printflags64 instead
of printflags_long. Use printxval64 instead of printxval_long.
[POWERPC] (SYS_FUNC(subpage_prot)): Change the type of len and nmemb
from unsigned long to kernel_ureg_t.
* numa.c (print_node, print_addr): Add kernel_ureg_t support.
(print_nodemask): Change type of maxnodes argument from unsigned long
to kernel_ureg_t.
(SYS_FUNC(move_pages)): Change npages type from unsigned long
to kernel_ureg_t. Change buf type from 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.
* process_vm.c (SYS_FUNC(process_vm_readv),
SYS_FUNC(process_vm_writev)): Change the type of local_iovcnt,
remote_iovcnt, and flags from unsigned long to kernel_ureg_t.
* xattr.c (print_xattr_val): Change type of insize and size arguments
from unsigned long to kernel_ureg_t.
(print_xattr_list): Change type of size argument from unsigned long
to kernel_ureg_t.
Do not treat len == -1 in any special way. All users who need the
string to be handled as a NUL-terminated string set QUOTE_0_TERMINATED
bit in user_style flags already.
* util.c (printstr_ex): Remove (len == -1) check.
* tests/printstr.c: New file.
* tests/printstr.test: New test.
* tests/.gitignore: Add printstr.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add printstr.test.
The second argument of sethostname syscall is not an unsigned long but
unsigned int. The kernel does not look at the string argument when
the length argument is too long.
* hostname.c [HAVE_LINUX_UTSNAME_H]: Include <linux/utsname.h>.
[!__NEW_UTS_LEN] (__NEW_UTS_LEN): Define.
(SYS_FUNC(sethostname)): Treat the second argument as unsigned int.
Print the first argument as a pointer when the second argument exceeds
__NEW_UTS_LEN.
* tests/sethostname.c [HAVE_LINUX_UTSNAME_H]: Include <linux/utsname.h>.
[!__NEW_UTS_LEN] (__NEW_UTS_LEN): Define.
(main): Use it. Check that the second argument of sethostname
is handled as unsigned int. Check that the first argument is printed
as a pointer when the second argument exceeds __NEW_UTS_LEN.
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.
* process.c (print_user_offset_addr): Change address argument type
from unsigned long to kernel_ureg_t.
(SYS_FUNC(ptrace)): Change addr variable type from unsigned long
to kernel_ureg_t.
