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libunwind-eh_elf/include/libunwind.h.in
Michael Munday 441adc46ff Add port to Linux on IBM Z (s390x)
This adds a port to Linux on the IBM Z platform (a.k.a s390x). It only
supports the 64-bit ABI. Most functionality is working and all the tests
pass with the exception of the coredump tests*.

Unwinding is only supported if DWARF unwind information is present.
libunwind can't currently make use of the backchain (if present).

The getcontext/setcontext functions only preserve/restore a subset of
registers. Currently this only consists of callee-saved registers and
some parameter registers.

Vector registers and access registers are not saved (and aren't callee-
saved) by getcontext and cannot currently be modified. They will however
be restored unmodified after resuming a context from a signal handler.

There is no special libunwind support for setjmp, the functionality is
emulated using glibc (I think all the ports do this for modern Linux
kernels).

* Unwinding on s390x requires floating point register access which the
coredump library doesn't currently support.
2018-01-09 07:37:55 -08:00

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C

/* Provide a real file - not a symlink - as it would cause multiarch conflicts
when multiple different arch releases are installed simultaneously. */
#ifndef UNW_REMOTE_ONLY
#if defined __aarch64__
#include "libunwind-aarch64.h"
#elif defined __arm__
# include "libunwind-arm.h"
#elif defined __hppa__
# include "libunwind-hppa.h"
#elif defined __ia64__
# include "libunwind-ia64.h"
#elif defined __mips__
# include "libunwind-mips.h"
#elif defined __powerpc__ && !defined __powerpc64__
# include "libunwind-ppc32.h"
#elif defined __powerpc64__
# include "libunwind-ppc64.h"
#elif defined __sh__
# include "libunwind-sh.h"
#elif defined __i386__
# include "libunwind-x86.h"
#elif defined __x86_64__
# include "libunwind-x86_64.h"
#elif defined __tilegx__
# include "libunwind-tilegx.h"
#elif defined __s390x__
# include "libunwind-s390x.h"
#else
# error "Unsupported arch"
#endif
#else /* UNW_REMOTE_ONLY */
# include "libunwind-@arch@.h"
#endif /* UNW_REMOTE_ONLY */