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Looking at the implementation of wrapped semtimedop() call inside glibc
and kernel, I started to believe that timeval should be located in
tcp->u_arg[4] and not tcp->u_arg[5]. Fortunately, tcp->u_arg[5] now
works correctly as well, due to side effects of decode_ipc_subcall().
declaration in header:
int semtimedop(semid, *sops, nsops, *timeout);
0 1 2 3
sys_ipc arguments in glibc on all patforms except s390*:
semid, (int) nsops, 0, CHECK_N (sops, nsops), timeout
0 1 2 3 4
We have to use indexes: 0 3 1 4
sys_ipc arguments on s390*:
semid, (int) nsops, timeout, sops
0 1 2 3
We have to use indexes: 0 3 1 2
* ipc.c (sys_semtimedop) [!S390]: Fix timeval argument index in
indirect_ipccall case.
AArch64 has been included in linux from 3.7 onwards.
Add support for AArch64 in strace, tested on linux in a simulator.
* configure.ac: Support AArch64.
* defs.h [AARCH64]: Include <sys/ptrace.h>, define TCB_WAITEXECVE.
* ipc.c (indirect_ipccall): Support AArch64.
* process.c (struct_user_offsets): Likewise.
* syscall.c [AARCH64]: Include <asm/ptrace.h>, <sys/uio.h>, and
<elf.h>. Define struct user_pt_regs regs.
(get_scno, get_syscall_result): Support AArch64 using PTRACE_GETREGSET.
(get_syscall_args, get_error): Support AArch64.
* linux/aarch64/ioctlent.h.in: New file.
* linux/aarch64/syscallent.h: New file, based on linux 3.7 version of
asm-generic/unistd.h.
Signed-off-by: Steve McIntyre <steve.mcintyre@linaro.org>
X32 support is added to Linux kernel 3.4. In a nutshell, x32 is x86-64 with
32bit pointers. At system call level, x32 is also identical to x86-64,
as shown by many changes like "defined(X86_64) || defined(X32)". The
main differerence bewteen x32 and x86-64 is off_t in x32 is long long
instead of long.
This patch adds x32 support to strace. Tested on Linux/x32.
* configure.ac: Support X32.
* defs.h: Set SUPPORTED_PERSONALITIES to 3 for X86_64,
Set PERSONALITY2_WORDSIZE to 4 for X86_64.
Add tcb::ext_arg for X32.
* file.c (stat): New for X32.
(sys_lseek): Use 64-bit version for X32.
(printstat64): Check current_personality != 1 for X86_64.
* ipc.c (indirect_ipccall): Check current_personality == 1
for X86_64.
* mem.c (sys_mmap64): Also use tcp->u_arg for X32. Print NULL
for zero address. Call printllval for offset for X32.
* pathtrace.c (pathtrace_match): Don't check sys_old_mmap for
X32.
* process.c (ARG_FLAGS): Defined for X32.
(ARG_STACK): Likewise.
(ARG_PTID): Likewise.
(change_syscall): Handle X32.
(struct_user_offsets): Support X32.
(sys_arch_prctl): Likewise.
* signal.c: Include <asm/sigcontext.h> for X32.
(SA_RESTORER): Also define for X32.
* syscall.c (update_personality): Support X32 for X86_64.
(is_restart_error): Likewise.
(syscall_fixup_on_sysenter): Likewise.
(get_syscall_args): Likewise.
(get_syscall_result): Likewise.
(get_error): Likewise.
(__X32_SYSCALL_BIT): Define if not defined.
(__X32_SYSCALL_MASK): Likewise.
(get_scno): Check DS register value for X32. Use
__X32_SYSCALL_MASK on X32 system calls.
* util.c (printllval): Use ext_arg for X32.
(printcall): Support X32.
(change_syscall): Likewise.
(arg0_offset): Likewise.
(arg1_offset): Likewise.
* Makefile.am (EXTRA_DIST): Add linux/x32/errnoent.h,
linux/x32/ioctlent.h.in, linux/x32/signalent.h,
linux/x32/syscallent.h, linux/x86_64/errnoent2.h,
linux/x86_64/ioctlent2.h, linux/x86_64/signalent2.h and
linux/x86_64/syscallent2.h.
* linux/x32/errnoent.h: New.
* linux/x32/ioctlent.h.in: Likewise.
* linux/x32/signalent.h: Likewise.
* linux/x32/syscallent.h: Likewise.
* linux/x86_64/errnoent2.h: Likewise.
* linux/x86_64/ioctlent2.h: Likewise.
* linux/x86_64/signalent2.h: Likewise.
* linux/x86_64/syscallent2.h: Likewise.
Signed-off-by: H.J. Lu <hongjiu.lu@intel.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
The files not mentioned in changelog below had only
copyright notices fixes and indentation fixes.
* defs.h: Include <stdint.h> and <inttypes.h>.
* file.c: Do not include <inttypes.h>.
Move struct kernel_dirent declaration below top include block.
* block.c: Do not include <stdint.h> and <inttypes.h>.
* quota.c: Likewise.
* desc.c: Likewise.
* signal.c: Likewise.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Conditions such as defined(LINUX) are always true now,
defined(FREEBSD) etc are always false.
When if directive has them as subexpressions, it can be simplified.
Another trivial changes here are fixes for directive indentation.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This change is generated by running every source through the following command:
unifdef -DLINUX -Dlinux -USUNOS4 -USVR4 -UUNIXWARE -UFREEBSD
-USUNOS4_KERNEL_ARCH_KLUDGE -UHAVE_MP_PROCFS
-UHAVE_POLLABLE_PROCFS -UHAVE_PR_SYSCALL -UUSE_PROCFS file.c
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Cast a value to long for %l in printf to avoid compiler warning
on systems where it may be long long.
* count.c (call_summary_pers): Cast to long.
* ipc.c (sys_mq_open, printmqattr): Likewise.
* quota.c (decode_cmd_data): Likewise.
* resource.c (sys_sysinfo): Likewise.
* time.c (tprint_timex): Likewise.
The s390 kernel sys_ipc system call only takes five arguments instead of
six arguments which the common code sys_ipc implementation takes.
One of the arguments of the sys_semtimedop subcall is therefore passed in
a different register than in the common code implementation.
This leads to broken decoding of the timespec argument:
semtimedop(0, 0x3ffffb43832, 1, {...}) = -1 EAGAIN
Fixed it looks like this:
semtimedop(0, 0x3ffffc2c842, 1, {0, 10000000}) = -1 EINTR
* linux/ipc.c (sys_semtimedop): Fix timespec decoding on s390.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This regression was introduced by commit v4.5.18-136-g783f5bc.
* ipc.c (tprint_msgsnd): Add and use "flags" argument.
(sys_msgsnd): Pass "flags" argument to tprint_msgsnd().
Patch by Anton Blanchard.
By Mike Frysinger (vapier AT gentoo.org)
* desc.c: Add F_SETLEASE, F_GETLEASE, F_NOTIFY,
F_DUPFD_CLOEXEC to fcntlcmds[]. Create notifyflags[] array.
(sys_fcntl): Handle new flags.
Optimize printing of open modes.
* defs.h: Declare sprint_open_modes(),
remove unused parameter in tprint_open_modes().
* desc.c (sprint_open_modes): Move fuction definition from here...
* file.c (sprint_open_modes): To here.
(tprint_open_modes): Use sprint_open_modes(), it already
generates needed string.
* ipc.c: Remove unused parameter from calls
to tprint_open_modes().
Fix open(2) flags parser.
* defs.h (tprint_open_modes): New function.
* desc.c (sprint_open_modes): New function.
(sys_fcntl): Use tprint_open_modes() and sprint_open_modes().
* file.c (openmodes): Split xlat into open_access_modes and
open_mode_flags.
(tprint_open_modes): New function.
(decode_open): Use it.
* ipc.c (sys_mq_open, printmqattr): Likewise.
Fixes RH#222385.
* ipc.c (shm_resource_flags): New variable, table has SHM_HUGETLB
but not IPC_NOWAIT, which have the same value.
(sys_shmget): Use that instead of resource_flags.
* ipc.c: Add SHM_HUGETLB field.
Mask out permission bits in msgget, semget and shmget before
printing resource_flags.
Mask execute permission bits (even though we dont currently
use them).
