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libc++ is basically workable only for LTO and no exception at present. So add compiling options: -stdlib=libc++ -flto Sample 03 and 04 passed in LTO mode. There are kinds of combination to build libc++. But libc++-3.3 + libsupc++-4.2 + libgcc_eh-4.2 is the one look promising. Two apparent issues left: Exception is not done, both in lib and backend. Alias ctor and dtor is not correctly generated.
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| 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. |
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| https://github.com/jrmuizel/libunwind |
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| /* Provide a real file - not a symlink - as it would cause multiarch conflicts | ||
| when multiple different arch releases are installed simultaneously. */ | ||
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|
||
| #if defined __arm__ | ||
| # include "tdep-arm/dwarf-config.h" | ||
| #elif defined __AVM2__ | ||
| # include "tdep-x86/dwarf-config.h" | ||
| #elif defined __hppa__ | ||
| # include "tdep-hppa/dwarf-config.h" | ||
| #elif defined __ia64__ | ||
| # include "tdep-ia64/dwarf-config.h" | ||
| #elif defined __mips__ | ||
| # include "tdep-mips/dwarf-config.h" | ||
| #elif defined __powerpc__ && !defined __powerpc64__ | ||
| # include "tdep-ppc32/dwarf-config.h" | ||
| #elif defined __powerpc64__ | ||
| # include "tdep-ppc64/dwarf-config.h" | ||
| #elif defined __i386__ | ||
| # include "tdep-x86/dwarf-config.h" | ||
| #elif defined __x86_64__ | ||
| # include "tdep-x86_64/dwarf-config.h" | ||
| #else | ||
| # error "Unsupported arch" | ||
| #endif |
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| /* libunwind - a platform-independent unwind library | ||
| Copyright (c) 2003 Hewlett-Packard Development Company, L.P. | ||
| Contributed by David Mosberger-Tang <davidm@hpl.hp.com> | ||
| 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. */ | ||
|
|
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| #ifndef dwarf_eh_h | ||
| #define dwarf_eh_h | ||
|
|
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| #include "dwarf.h" | ||
|
|
||
| /* This header file defines the format of a DWARF exception-header | ||
| section (.eh_frame_hdr, pointed to by program-header | ||
| PT_GNU_EH_FRAME). The exception-header is self-describing in the | ||
| sense that the format of the addresses contained in it is expressed | ||
| as a one-byte type-descriptor called a "pointer-encoding" (PE). | ||
| The exception header encodes the address of the .eh_frame section | ||
| and optionally contains a binary search table for the | ||
| Frame Descriptor Entries (FDEs) in the .eh_frame. The contents of | ||
| .eh_frame has the format described by the DWARF v3 standard | ||
| (http://www.eagercon.com/dwarf/dwarf3std.htm), except that code | ||
| addresses may be encoded in different ways. Also, .eh_frame has | ||
| augmentations that allow encoding a language-specific data-area | ||
| (LSDA) pointer and a pointer to a personality-routine. | ||
| Details: | ||
| The Common Information Entry (CIE) associated with an FDE may | ||
| contain an augmentation string. Each character in this string has | ||
| a specific meaning and either one or two associated operands. The | ||
| operands are stored in an augmentation body which appears right | ||
| after the "return_address_register" member and before the | ||
| "initial_instructions" member. The operands appear in the order | ||
| in which the characters appear in the string. For example, if the | ||
| augmentation string is "zL", the operand for 'z' would be first in | ||
| the augmentation body and the operand for 'L' would be second. | ||
| The following characters are supported for the CIE augmentation | ||
| string: | ||
| 'z': The operand for this character is a uleb128 value that gives the | ||
| length of the CIE augmentation body, not counting the length | ||
| of the uleb128 operand itself. If present, this code must | ||
| appear as the first character in the augmentation body. | ||
| 'L': Indicates that the FDE's augmentation body contains an LSDA | ||
| pointer. The operand for this character is a single byte | ||
| that specifies the pointer-encoding (PE) that is used for | ||
| the LSDA pointer. | ||
| 'R': Indicates that the code-pointers (FDE members | ||
| "initial_location" and "address_range" and the operand for | ||
| DW_CFA_set_loc) in the FDE have a non-default encoding. The | ||
| operand for this character is a single byte that specifies | ||
| the pointer-encoding (PE) that is used for the | ||
| code-pointers. Note: the "address_range" member is always | ||
| encoded as an absolute value. Apart from that, the specified | ||
| FDE pointer-encoding applies. | ||
| 'P': Indicates the presence of a personality routine (handler). | ||
| The first operand for this character specifies the | ||
| pointer-encoding (PE) that is used for the second operand, | ||
| which specifies the address of the personality routine. | ||
| If the augmentation string contains any other characters, the | ||
| remainder of the augmentation string should be ignored. | ||
| Furthermore, if the size of the augmentation body is unknown | ||
| (i.e., 'z' is not the first character of the augmentation string), | ||
| then the entire CIE as well all associated FDEs must be ignored. | ||
| A Frame Descriptor Entries (FDE) may contain an augmentation body | ||
| which, if present, appears right after the "address_range" member | ||
| and before the "instructions" member. The contents of this body | ||
| is implicitly defined by the augmentation string of the associated | ||
| CIE. The meaning of the characters in the CIE's augmentation | ||
| string as far as FDEs are concerned is as follows: | ||
| 'z': The first operand in the FDE's augmentation body specifies | ||
| the total length of the augmentation body as a uleb128 (not | ||
| counting the length of the uleb128 operand itself). | ||
| 'L': The operand for this character is an LSDA pointer, encoded | ||
| in the format specified by the corresponding operand in the | ||
| CIE's augmentation body. | ||
| */ | ||
|
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| #define DW_EH_VERSION 1 /* The version we're implementing */ | ||
|
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| struct dwarf_eh_frame_hdr | ||
| { | ||
| unsigned char version; | ||
| unsigned char eh_frame_ptr_enc; | ||
| unsigned char fde_count_enc; | ||
| unsigned char table_enc; | ||
| /* The rest of the header is variable-length and consists of the | ||
| following members: | ||
| encoded_t eh_frame_ptr; | ||
| encoded_t fde_count; | ||
| struct | ||
| { | ||
| encoded_t start_ip; // first address covered by this FDE | ||
| encoded_t fde_addr; // address of the FDE | ||
| } | ||
| binary_search_table[fde_count]; */ | ||
| }; | ||
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| #endif /* dwarf_eh_h */ |
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