forked from OSchip/llvm-project
[libunwind] Use placement new to avoid dependency C++ library
The rest of libunwind already uses placement new, these are the only places where non-placement new is being used introducing undesirable C++ library dependency. Differential Revision: https://reviews.llvm.org/D57251 llvm-svn: 352245
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@ -14,8 +14,6 @@
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#ifndef NDEBUG
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#include <cstdlib> // getenv
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#endif
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#include <new>
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#include <algorithm>
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#include "libunwind_ext.h"
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#include "config.h"
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@ -122,12 +120,14 @@ static bool is64bit(task_t task) {
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_LIBUNWIND_EXPORT unw_addr_space_t unw_create_addr_space_for_task(task_t task) {
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#if __i386__
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if (is64bit(task)) {
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unw_addr_space_x86_64 *as = new unw_addr_space_x86_64(task);
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unw_addr_space_x86_64 *as = malloc(sizeof(unw_addr_space_x86_64));
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new (as) unw_addr_space_x86_64(task);
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as->taskPort = task;
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as->cpuType = CPU_TYPE_X86_64;
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//as->oas
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} else {
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unw_addr_space_i386 *as = new unw_addr_space_i386(task);
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unw_addr_space_i386 *as = malloc(sizeof(unw_addr_space_i386));
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new (as) unw_addr_space_i386(task);
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as->taskPort = task;
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as->cpuType = CPU_TYPE_I386;
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//as->oas
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@ -144,18 +144,21 @@ _LIBUNWIND_EXPORT void unw_destroy_addr_space(unw_addr_space_t asp) {
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#if __i386__ || __x86_64__
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case CPU_TYPE_I386: {
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unw_addr_space_i386 *as = (unw_addr_space_i386 *)asp;
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delete as;
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as->~unw_addr_space_i386();
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free(as);
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}
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break;
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case CPU_TYPE_X86_64: {
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unw_addr_space_x86_64 *as = (unw_addr_space_x86_64 *)asp;
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delete as;
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as->~unw_addr_space_x86_64();
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free(as);
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}
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break;
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#endif
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case CPU_TYPE_POWERPC: {
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unw_addr_space_ppc *as = (unw_addr_space_ppc *)asp;
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delete as;
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as->~unw_addr_space_ppc();
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free(as);
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}
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break;
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}
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