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If the kernel contains commit 84d77d3f06e7e8dea057d10e8ec77ad71f721be3,
both PTRACE_PEEKDATA and process_vm_readv become unavailable when the
process dumpable flag is cleared. As the first 4 syscall arguments are
still available via registers, do not treat this as get_syscall_args
error.
This condition is triggered and therefore tested by prctl-dumpable test.
* linux/mips/get_syscall_args.c (get_syscall_args) [LINUX_MIPSO32]:
Do not bail out if umoven fails.
If the kernel contains commit 84d77d3f06e7e8dea057d10e8ec77ad71f721be3,
PTRACE_PEEKTEXT becames unavailable when the process dumpable flag is
cleared. As this is not a fatal condition for get_scno, do not bail out
if PTRACE_PEEKTEXT fails.
This condition is triggered and therefore tested by prctl-dumpable test.
* linux/sparc64/get_scno.c (arch_get_scno): Do not bail out
if PTRACE_PEEKTEXT fails.
Move is_negated_errno() to a separate new header file negated_errno.h
and include it just for architectures which require it.
is_negated_errno() is not used on those architectures
that have a dedicated register to signal a syscall error.
The issue was raised when compiling with clang, which is more
strict regarding semantics of unused static inline functions
defined in C files and will issue a -Wunused-function warrning
if they are not used anywhere.
* syscall.c (is_negated_errno): Move to ...
* negated_errno.h: ... new file.
* Makefile.am (strace_SOURCES): Add it.
* linux/aarch64/get_error.c: Include it.
* linux/arc/get_error.c: Likewise.
* linux/arm/get_error.c: Likewise.
* linux/avr32/get_error.c: Likewise.
* linux/bfin/get_error.c: Likewise.
* linux/crisv10/get_error.c: Likewise.
* linux/hppa/get_error.c: Likewise.
* linux/i386/get_error.c: Likewise.
* linux/ia64/get_error.c: Likewise.
* linux/m68k/get_error.c: Likewise.
* linux/metag/get_error.c: Likewise.
* linux/microblaze/get_error.c: Likewise.
* linux/or1k/get_error.c: Likewise.
* linux/riscv/get_error.c: Likewise.
* linux/s390/get_error.c: Likewise.
* linux/sh/get_error.c: Likewise.
* linux/sh64/get_error.c: Likewise.
* linux/tile/get_error.c: Likewise.
* linux/x86_64/get_error.c: Likewise.
* linux/xtensa/get_error.c: Likewise.
* linux/inet_diag.h (inet_diag_bc_op, inet_diag_hostcond,
inet_diag_markcond): New structures.
(INET_DIAG_BC_*): New enum.
* netlink_sock_diag.c: Include "xlat/inet_diag_bytecodes.h".
(decode_inet_addr, decode_inet_diag_hostcond,
print_inet_diag_bc_op, decode_inet_diag_markcond,
decode_bytecode_data, decode_inet_diag_bc_op): New functions.
(inet_diag_req_nla_decoders): New array.
(decode_inet_diag_req_compat, decode_inet_diag_req_v2): Use it.
* xlat/inet_diag_bytecodes.in: New file.
* linux/smc_diag.h (smc_diag_cursor, smc_diag_conninfo
smc_diag_linkinfo, smc_diag_lgrinfo): New structures.
* netlink_sock_diag.c: Include "xlat/smc_link_group_roles.h".
(decode_smc_diag_conninfo, decode_smc_diag_lgrinfo): New functions.
(smc_diag_msg_nla_decoders): New array.
(decode_smc_diag_msg): Use it.
* xlat/smc_link_group_roles.in: New file.
* linux/packet_diag.h (packet_diag_info, packet_diag_mclist,
packet_diag_ring): New structures.
(PDI_*): New macros.
* netlink_sock_diag.c: Include <linux/filter.h>
and "xlat/packet_diag_info_flags.h".
(decode_packet_diag_info, decode_packet_diag_mclist,
decode_packet_diag_ring, decode_packet_diag_filter): New functions.
(packet_diag_msg_nla_decoders): New array.
(decode_packet_diag_msg): Use it.
* print_fields.h (PRINT_FIELD_QUOTED_STRING): New macro.
* xlat/packet_diag_info_flags.in: New file.
Co-authored-by: Dmitry V. Levin <ldv@altlinux.org>
Starting with linux commit v4.0-rc4~21^2, "SP" register
is available via regs[PTR_SP] member of struct user_pt_regs.
* linux/nios2/arch_regs.h (nios2_sp_ptr): Change type
to "unsigned int *".
* linux/nios2/arch_regs.c (nios2_sp_ptr): Likewise.
Replace .sp with .regs[PTR_SP].
Fixes: http://autobuild.buildroot.net/results/b9f/b9fc25b82f3280872fe1593ac252a8529ba83576
Fixes: v4.16-34-g6117728a ("nios2: export nios2_sp_ptr")
Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
"sp" register is a member of "scratch" structure (which is nested
in user_regs_struct)
* linux/arc/arch_regs.c: Replace .sp with .scratch.sp .
Fixes: v4.16-31-g134042a5 ("arc: export arc_sp_ptr")
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
* netlink_sock_diag.c (unix_diag_msg_nla_decoders): New array.
(decode_unix_diag_msg): Use it.
* linux/unix_diag.h (unix_diag_vfs, unix_diag_rqlen): New structures.
* linux/netlink_diag.h (netlink_diag_ring): New structure.
(NDIAG_FLAG_*): New macros.
* netlink_sock_diag.c: Include "xlat/netlink_socket_flags.h".
(print_group, decode_netlink_diag_groups, decode_netlink_diag_ring,
decode_netlink_diag_flags): New functions.
(netlink_diag_msg_nla_decoders): New array.
(decode_netlink_diag_msg): Use it.
* xlat/netlink_socket_flags.in: New file.
* linux/inet_diag.h (inet_diag_meminfo, tcpvegas_info,
tcp_dctcp_info, tcp_bbr_info): New structures.
* linux/sock_diag.h (SK_MEMINFO_VARS): New macro.
* netlink_sock_diag.c: Include <linux/sock_diag.h>.
(print_meminfo, decode_meminfo, decode_inet_diag_meminfo,
decode_tcpvegas_info, decode_tcp_dctcp_info, decode_tcp_bbr_info):
New functions.
(inet_diag_msg_nla_decoders): New array.
(decode_inet_diag_msg): Use it.
* linux/packet_diag.h (PACKET_DIAG_*): New enum.
* netlink_sock_diag.c: Include "xlat/packet_diag_attrs.h".
(decode_packet_diag_msg): Use decode_nlattr.
* xlat/packet_diag_attrs.in: New file.
Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
* linux/netlink_diag.h (NETLINK_DIAG_*): New enum.
* netlink_sock_diag.c: Include "xlat/netlink_diag_attrs.h".
(decode_netlink_diag_msg): Use decode_nlattr.
* xlat/netlink_diag_attrs.in: New file.
Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
* 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.
Implement a pluggable mechanism of nlmsg_type decoding.
Add decoding of NETLINK_SOCK_DIAG types.
* linux/sock_diag.h (SOCK_DESTROY): New macro.
* xlat/nl_sock_diag_types.in: New file.
* netlink.c: Include xlat/nl_sock_diag_types.h.
(get_fd_nl_family, decode_nlmsg_type): New functions.
(print_nlmsghdr): Use them for nlmsg_type decoding.
Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
Parsers of sigprocmask and osf_sigprocmask syscalls are different
anyway, so rename the function to match the syscall name.
* signal.c [ALPHA] (SYS_FUNC(sigprocmask)): Rename
to SYS_FUNC(osf_sigprocmask).
* linux/alpha/syscallent.h: Update sys_func.
On some architectures old sigsuspend syscall takes the signal mask from
the 3rd argument, on some from the 1st. And, if it wasn't peculiar
enough, the signal mask is passed by value on all architectures except
mips where it's passed by reference.
* signal.c (SYS_FUNC(sigsuspend)): Take the signal mask from the last
argument.
* linux/alpha/syscallent.h (sigsuspend): Set nargs to 1.
* linux/crisv10/syscallent.h: Likewise.
* linux/mips/syscallent-o32.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/powerpc64/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* tests/sigsuspend.c: New file.
* tests/gen_tests.in (sigsuspend): New entry.
* tests/pure_executables.list: Add sigsuspend.
* tests/.gitignore: Likewise.
* NEWS: Mention this fix.