diff --git a/src/dwarf/dwarf-eh.h b/src/dwarf/dwarf-eh.h deleted file mode 100644 index 405e394a..00000000 --- a/src/dwarf/dwarf-eh.h +++ /dev/null @@ -1,128 +0,0 @@ -/* libunwind - a platform-independent unwind library - Copyright (c) 2003 Hewlett-Packard Development Company, L.P. - Contributed by David Mosberger-Tang - -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_eh_h -#define dwarf_eh_h - -#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. - -*/ - -#define DW_EH_VERSION 1 /* The version we're implementing */ - -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]; */ - }; - -#endif /* dwarf_eh_h */