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da0b1a146f
This patch adds support for the powerpc64le-linux platform. It consists of two main features: - Support little-endian byte order This is done via a "big_endian" member of struct unw_addr_space, which is evaluated by common code via the dwarf_is_big_endian macro, and also in endian-aware code in unw_is_signal_frame. - Support the ELFv2 ABI This is done via an "abi" member of struct unw_addr_space. This is currently only needed in tdep_get_func_addr, since the ELFv2 ABI does not use function descriptors. Both new members are initialized in unw_create_addr_space and ppc64_local_addr_space_init, following the mips precedent. Since ppc32 and ppc64 now no longer share the unw_create_addr_space implementation, the file is duplicated from the ppc directory into ppc32/ppc64. Tested on powerpc64-linux and powerpc64le-linux. Support on LE seems to be as good as existing BE support; I have not attempted to fix the existing shortcomings of PPC support that already cause a number to tests to fail due to unimplemented features. Signed-off-by: Ulrich Weigand <uweigand@de.ibm.com>
56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 2006-2007 IBM
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Contributed by
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Corey Ashford <cjashfor@us.ibm.com>
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Jose Flavio Aguilar Paulino <jflavio@br.ibm.com> <joseflavio@gmail.com>
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Copied from libunwind-x86_64.h, modified slightly for building
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frysk successfully on ppc64, by Wu Zhou <woodzltc@cn.ibm.com>
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Will be replaced when libunwind is ready on ppc64 platform.
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This file is part of libunwind.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#ifndef dwarf_config_h
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#define dwarf_config_h
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/* For PPC64, 48 GPRs + 33 FPRs + 33 AltiVec + 1 SPE */
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#define DWARF_NUM_PRESERVED_REGS 115
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#define DWARF_REGNUM_MAP_LENGTH 115
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/* Return TRUE if the ADDR_SPACE uses big-endian byte-order. */
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#define dwarf_is_big_endian(addr_space) ((addr_space)->big_endian)
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/* Convert a pointer to a dwarf_cursor structure to a pointer to
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unw_cursor_t. */
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#define dwarf_to_cursor(c) ((unw_cursor_t *) (c))
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typedef struct dwarf_loc
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{
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unw_word_t val;
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#ifndef UNW_LOCAL_ONLY
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unw_word_t type; /* see X86_LOC_TYPE_* macros. */
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#endif
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}
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dwarf_loc_t;
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#endif /* dwarf_config_h */
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