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https://github.com/tobast/libunwind-eh_elf.git
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5fef17c05d
Check the endianness earlier in unw_create_addr_space() on all
architectures to avoid leaking the dynamically allocated address space
struct.
This was already fixed for ARM in commit cf6a998796 ("Fix memory leak
in ARM unw_create_addr_space()"). Move the endianness check also on ARM
to avoid malloc() & free() in the error case.
56 lines
1.7 KiB
C
56 lines
1.7 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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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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#include <stdlib.h>
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#include <libunwind_i.h>
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PROTECTED unw_addr_space_t
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unw_create_addr_space (unw_accessors_t *a, int byte_order)
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{
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#ifdef UNW_LOCAL_ONLY
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return NULL;
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#else
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unw_addr_space_t as;
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/*
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* Linux ppc64 supports only big-endian.
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*/
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if (byte_order != 0 && byte_order != __BIG_ENDIAN)
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return NULL;
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as = malloc (sizeof (*as));
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if (!as)
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return NULL;
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memset (as, 0, sizeof (*as));
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as->acc = *a;
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return as;
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#endif
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}
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