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This is needed at least for bpf, btrfs, and sg_io, as 32-bit tracer
cannot figure out whether the kernel is 32-bit or 64-bit,
and its behaviour differs when it handles u64 as a pointer.
* linux/arch_defs_.h [!CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL]
(CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL): New definition, default to 0.
* linux/arm/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Define to 1.
* linux/i386/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* linux/mips/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* linux/powerpc/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* linux/riscv/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* linux/s390/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* linux/sparc/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* linux/tile/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* defs.h (print_big_u64_addr): New function.
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
In order to simplify HAVE_SA_RESTORER logic a bit.
* linux/ia64/arch_defs_.h (HAVE_ARCH_SA_RESTORER): New macro.
* linux/m68k/arch_defs_.h: Likewise.
* linux/sparc/arch_defs_.h: Likewise.
* linux/sparc64/arch_defs_.h: Likewise.
* linux/hppa/arch_defs_.h: New file.
* Makefile.am (EXTRA_DIST): Add it.
* signal.c [HAVE_ARCH_SA_RESTORER]: Define HAVE_SA_RESTORER to it.
[!HAVE_ARCH_SA_RESTORER && SA_RESTORER]: Define HAVE_SA_RESTORER to 1.
[!HAVE_ARCH_SA_RESTORER && !SA_RESTORER]: Define HAVE_SA_RESTORER to 0.
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.
Remove temporary types created for transition from long
to kernel_ulong_t.
Automatically replace kernel_scno_t and kernel_ureg_t with
kernel_ulong_t using
$ git grep -El 'kernel_(scno|ureg)_t' |
xargs sed -ri 's/kernel_(scno|ureg)_t/kernel_ulong_t/g'
* kernel_types.h (kernel_scno_t, kernel_ureg_t): Remove.
All users updated.
* 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.
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.
* 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.
As io_setup syscall allocates some memory using do_mmap_pgoff, and
io_destroy deallocates this memory using vm_munmap, set TRACE_MEMORY
flag for all sysentries of io_setup and io_destroy using the following
oneliner:
sed -ri '/io_setup|io_destroy/ s/0,/TM,/' linux/*/syscallent*.h
* linux/*/syscallent*.h (io_setup, io_destroy): Change sys_flags to TM.
* linux/sparc/arch_sigreturn.c (arch_sigreturn): Parametrize
member types of struct signal_frame.
* linux/sparc64/arch_sigreturn.c (sparc64_arch_sigreturn,
sparc32_arch_sigreturn): New functions.
(arch_sigreturn): Use them.
There is no need to explicitly initialize big holes after conversion
of syscallent.h files to use designated initializers. For architectures
that have some data at the end of syscallent.h this initialization of
big holes is no-op, for others it just inflates the table unnecessarily.
* linux/arc/syscallent.h: Remove initialization of arch specific block
at the end of table.
* linux/metag/syscallent.h: Likewise.
* linux/nios2/syscallent.h: Likewise.
* linux/or1k/syscallent.h: Likewise.
* linux/tile/syscallent.h: Likewise.
* linux/tile/syscallent1.h: Likewise.
* linux/arm/syscallent.h: Remove explicit initialization of a big hole
before socket subcalls.
* linux/i386/syscallent.h: Likewise.
* linux/m68k/syscallent.h: Likewise.
* linux/mips/syscallent-n32.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/powerpc64/syscallent.h: Likewise.
* linux/s390/syscallent.h: Likewise.
* linux/s390x/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* linux/mips/syscallent-compat.h: Remove explicit initialization
of big holes between different mips ABIs.
* linux/mips/syscallent-n64.h: Remove explicit initialization
of big holes before socket subcalls and between different mips ABIs.
* linux/mips/syscallent-o32.h: Likewise.
