This facrots out common core members freeing into pstree.c
helper. Per-arch freeing helpers are now symmetrical to the
allocating ones.
This is a merge of two Cyrill's patches.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
- For NT_X86_XSTATE we need a system elf.h
- Drop duplicated parasite-syscall.h
- Organize headers in the way
- system headers
- asm headers
- regular headers
- protobuf stuff
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
In case if here is a fast cpu and make is done in parallel
we may have the following error
| GEN arch/x86/sys-exec-tbl.c
| GEN arch/x86/syscalls.S
| CC arch/x86/crtools.o
| CC arch/x86/cpu.o
| CC arch/x86/syscalls.o
| LINK arch/x86/syscalls.built-in.o
| In file included from include/restorer.h:12:0,
| from arch/x86/crtools.c:19:
| include/lock.h: In function ‘futex_set_and_wake’:
| include/lock.h:56:2: error: implicit declaration of function ‘sys_futex’ [-Werror=implicit-function-declaration]
| cc1: all warnings being treated as errors
| make[1]: *** [arch/x86/crtools.o] Error 1
| make: *** [arch/x86] Error 2
This is because crtools.c includes syscall.h but this header
is generated by a special script. So use $(deps-after) feature
provided by our make engine making sure the header is generated
before the deps are started to build.
Reported-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Tested-by: Andrew Vagin <avagin@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
The FPU data is quite CPU-type oriented,
thus move it to asm/fpu.h.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
No need to propagate special flags we use for syscalls library
to all arch specific objects. Make them syscalls local.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
They are really depends on CPU we're running on.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
No need to walk up the directories if we need
to include protobuf file. This was always a bad
use of ability to walk the filesystem from other
headers.
Same time we don't need -I$(SRC_DIR)/protobuf/
in general makefile anymore.
[xemul: Small fixlet in head Makefile, since patch
it out-of-order]
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
It's been reported that we do not test if the tracee is 32bit
task running kn 64bit kernel. This patch adds such test.
https://bugzilla.openvz.org/show_bug.cgi?id=2505
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
We do check for proper architectrue in a makefile,
no need for additional guards.
After all porting the project for x86-32 is a far more
bigger than "just implement proper core for parts covered
by #else /* CONFIG_X86_64 */".
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
These functions are designated to convert a native pointer
to uint64_t used to store a virtual address in protobuf messages
and vice versa in a machine-independent way.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
The macro specifies the size of the machine pointer explicitly.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
The layout of the struct rlimit depends on the value
of the macro FILE_OFFSET_BITS. If FILE_OFFSET_BITS is 64
the userspace and kernel definitions becomes incoherent
on a 32-bit platform.
The struct krlimit representing the kernel version of
the struct rlimit is introduced to address the issue:
the function restore_rlims() is fixed to convert between
the userspace and kernel representations of the struct.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This makes it possible to use TASK_SIZE instead of TASK_SIZE_MAX.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This is the merge and a slight rework (no TI_SP macro) of Alexander's patches
about the subj.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
The macro is designated to tune the beginning of a sigframe on different architectures.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
The macro REG_RES is to be used to access the syscall return value register
in the struct user_regs_struct_t.
The macro REG_IP is to be used to access the program counter register
in the struct user_regs_struct_t.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
The macro is introduced to abstract from behavior of breakpoints:
they generate different values of the field siginfo.si_code on different architectures.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Dump the with "new" prlimit syscall that works on arbitrary pid.
Restore is done in restorer _after_ mappings mixup and _before_
caps drop to make it set any max value.
The RLIM_INFINITY is handled explicitly to help future 64<->32
bits migration.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
* The routine sigreturn_prep_xsave_frame() is renamed to sigreturn_prep_fpu_frame().
* Moved the routines sigreturn_prep_fpu_frame(), show_rt_xsave_frame(), and
valid_xsave_frame() to the file crtools.c.
* Introduced the structure fpu_state_t to pass the FPU state to the restorer
in a machine-independent way.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
The size of an auxv is the machine pointer but a 64-bit integer is reserved
in a MmEntry protobuf message to store an auxv. Moreover the number of auxv's
varies from one architecture to another. So the following is proposed
to alleviate the issue.
* Introduced the type auxv_t representing a machine-pointer sized integer.
* The size of auxv array is extracted from a MmEntry message instead of using
the value of the macro AT_VECTOR_SIZE.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
VM above TASK_SIZE is read-only but some areas are mapped on ARM
into the process address space.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
* The following files goes into the directory arch/x86/include/asm unmodified:
- include/atomic.h,
- include/linkage.h,
- include/memcpy_64.h,
- include/types.h,
- include/bitops.h,
- pie/parasite-head-x86-64.S,
- include/processor-flags.h,
- include/syscall-x86-64.def.
* Changed include directives in the source files that include the headers
listed above.
* Modified build scripts to reflect the source moves.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
