mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-11-28 18:07:37 +01:00
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
|
|
Copyright (C) 2006-2007 IBM
|
|
Contributed by
|
|
Corey Ashford <cjashfor@us.ibm.com>
|
|
Jose Flavio Aguilar Paulino <jflavio@br.ibm.com> <joseflavio@gmail.com>
|
|
|
|
Copied from libunwind-x86_64.h, modified slightly for building
|
|
frysk successfully on ppc64, by Wu Zhou <woodzltc@cn.ibm.com>
|
|
Will be replaced when libunwind is ready on ppc64 platform.
|
|
|
|
This file is part of libunwind.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining
|
|
a copy of this software and associated documentation files (the
|
|
"Software"), to deal in the Software without restriction, including
|
|
without limitation the rights to use, copy, modify, merge, publish,
|
|
distribute, sublicense, and/or sell copies of the Software, and to
|
|
permit persons to whom the Software is furnished to do so, subject to
|
|
the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be
|
|
included in all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
|
|
#ifndef dwarf_config_h
|
|
#define dwarf_config_h
|
|
|
|
/* For PPC64, 48 GPRs + 33 FPRs + 33 AltiVec + 1 SPE */
|
|
#define DWARF_NUM_PRESERVED_REGS 115
|
|
|
|
#define DWARF_REGNUM_MAP_LENGTH 115
|
|
|
|
/* Return TRUE if the ADDR_SPACE uses big-endian byte-order. */
|
|
#define dwarf_is_big_endian(addr_space) ((addr_space)->big_endian)
|
|
|
|
/* Convert a pointer to a dwarf_cursor structure to a pointer to
|
|
unw_cursor_t. */
|
|
#define dwarf_to_cursor(c) ((unw_cursor_t *) (c))
|
|
|
|
typedef struct dwarf_loc
|
|
{
|
|
unw_word_t val;
|
|
#ifndef UNW_LOCAL_ONLY
|
|
unw_word_t type; /* see X86_LOC_TYPE_* macros. */
|
|
#endif
|
|
}
|
|
dwarf_loc_t;
|
|
|
|
#endif /* dwarf_config_h */
|