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* main.cxx (main): Perform equivalent sed by hand on uname()->machine.
* stap.1.in: Clarify -a ARCH slightly.
* tapsets.cxx (validate_module_elf): Accept "arm*"for EM_ARM.
* tapset/**, testsuite/**: Removed/collapsed "i386"/"i686" branches,
renamed "ppc64"->"powerpc" and "s390x"->"s390".
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These are all the dwarfless analogs to $arch/syscalls.stp.
(Only i686 and x86_64 have been tested...)
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The functions asmlinkage() and fastcall() are used to help access
syscall parameters on i686. All other archs don't need this, but they
still define empty functions to shield the callers from arch details.
However, stap issues warnings for empty script-level functions. This
patch changes them to "%{ /* pure */ %}" so there's no complaint, and
they will still get optimized away.
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While there, fix minor issues with the s390x syscall tapset.
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This now checks that CONTEXT->regs actually exists, and that the
requested offset is in the correct range.
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* x86_64/syscalls.stp: Add support for sys32_mmap[2],
sys32_vm86_warning, and sys32_pipe.
* s390x/syscalls.stp (get_mmap_args): Move to aux_syscalls.
* aux_syscalls.stp (get_mmap_args): Moved here.
* syscalls.stp: Add sys32_alarm.
* syscalls2.stp: Add sys32_uname.
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* syscalls*: Move sys32_sysctl to arch dirs.
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* */syscalls.stp: Added mmap functions.
Continued moving common compatibility functions to
the main tapset.
* aux_syscalls.stp (_shmat_flags_str): New.
(__get_compat_argv): New.
* syscalls.stp (adjtimex): Just print hex argument.
(compat_adjtimex): New.
(clock_getres): Also probe compat_clock_getres.
(clock_gettime): Also probe compat funcs.
(compat_clock_nanosleep): New.
(compat_execve): New.
(fstatat): New.
(get[e][gu]id): Also probe sys32.
(getsockopt): Make optional. Also probe compat.
(mmap, mmap2): These are arch-specific, so move to individual
architecture subdirs.
(compat_sys_msgctl): New.
(compat_sys_msgrcv): New.
(compat_sys_msgsnd): New.
* syscalls.stp (pread32): Remove. It calls pread64 .
(quotactl): Make optional.
(recv): Probe correct function.
(recvfrom): Fix args.
(compat_sys_recvmsg): New.
(semctl): Make optional.
(compat_sys_semctl): New.
(semget): Make optional.
(semop): Make optional.
(semtimedop): Make optional.
(compat_sys_semtimedop): New.
(send): Make optional.
(sendmsg): Make optional.
(compat_sys_sendmsg): New.
(sendto): Make optional.
(setsockopt): Make optional. Add compat.
(shmat): New.
(compat_sys_shmat): New.
(shmctl): New.
(compat_sys_shmctl): New.
(shmdt): New.
(shmget): New.
(shutdown): Make optional.
(socket): Make optional.
(socketpair): Make optional.
(swapoff): Make optional.
(swapon): Make optional.
(sysctl): Add probe on sys32.
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syscall.mmap2.return.
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