114 lines
5.2 KiB
C++
114 lines
5.2 KiB
C++
/* So far this is correct for BSDish archives. Don't forget that
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files must begin on an even byte boundary. */
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#ifndef __AR_H__
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#define __AR_H__
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#pragma pack(push, 1)
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/* Note that the usual '\n' in magic strings may translate to different
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characters, as allowed by ANSI. '\012' has a fixed value, and remains
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compatible with existing BSDish archives. */
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#define ARMAG "!<arch>\012" /* For COFF and a.out archives */
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#define ARMAGB "!<bout>\012" /* For b.out archives */
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#define ARMAGE "!<elf_>\012" /* For ELF archives */
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#define SARMAG 8
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#define ARFMAG "`\012"
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/* The ar_date field of the armap (__.SYMDEF) member of an archive
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must be greater than the modified date of the entire file, or
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BSD-derived linkers complain. We originally write the ar_date with
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this offset from the real file's mod-time. After finishing the
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file, we rewrite ar_date if it's not still greater than the mod date. */
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#define ARMAP_TIME_OFFSET 60
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struct ar_hdr
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{
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char ar_name[16]; /* name of this member */
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char ar_date[12]; /* file mtime */
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char ar_uid[6]; /* owner uid; printed as decimal */
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char ar_gid[6]; /* owner gid; printed as decimal */
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char ar_mode[8]; /* file mode, printed as octal */
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char ar_size[10]; /* file size, printed as decimal */
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char ar_fmag[2]; /* should contain ARFMAG */
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};
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#define AR_EFMT1 "#1/" /* extended format #1: BSD/Apple archives */
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// ig. get all module names from ar
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int process_ar(
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char *libfile, /* return 0 - ok */
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int (*_callback)(
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void *ud,
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int32 offset,
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int method,
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uint32 csize,
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uint32 ucsize,
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uint32 attributes,
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const char *filename),
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void *ud);
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// The first linker member has the following format. This information appears after the
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// header:
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//
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// Offset Size Field Description
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// 0 4 Number of Symbols Unsigned long containing the number of symbols indexed.
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// This number is stored in big-endian format. Each object-file member
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// typically defines one or more external symbols.
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// 4 4*n Offsets Array of file offsets to archive member headers, in which n is
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// equal to Number of Symbols. Each number in the array is an unsigned long
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// stored in big-endian format. For each symbol named in the String Table,
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// the corresponding element in the Offsets array gives the location of the
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// archive member that contains the symbol.
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// * * String Table Series of null-terminated strings that name all the symbols
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// in the directory. Each string begins immediately after the null character
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// in the previous string. The number of strings must be equal to the value
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// of the Number of Symbols fields.
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//
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// -----------------------------
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// The second linker member has the name '\' as does the first linker member. Although
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// both the linker members provide a directory of symbols and archive members that contain
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// them, the second linker member is used in preference to the first by all current
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// linkers. The second linker member includes symbol names in lexical order, which enables
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// faster searching by name.
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//
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// The first second member has the following format. This information appears after the
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// header:
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//
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// Offset Size Field Description
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// 0 4 Number of Members Unsigned long containing the number of archive members.
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// 4 4*m Offsets Array of file offsets to archive member headers, arranged in
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// ascending order. Each offset is an unsigned long. The number m is equal
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// to the value of the Number of Members field.
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// * 4 Number of Symbols Unsigned long containing the number of symbols indexed.
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// Each object-file member typically defines one or more external symbols.
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// * 2*n Indices Array of 1-based indices (unsigned short) which map symbol names
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// to archive member offsets. The number n is equal to Number of Symbols.
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// For each symbol named in the String Table, the corresponding element in
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// the Indices array gives an index into the Offsets array. The Offsets
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// array, in turn, gives the location of the archive member that contains
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// the symbol.
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// * * String Table Series of null-terminated strings that name all the symbols
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// in the directory. Each string begins immediately after the null byte in
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// the previous string. The number of strings must be equal to the value of
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// the Number of Symbols fields. This table lists all the symbol names in
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// ascending lexical order.
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//
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// //-----------------------------
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// The name of the longnames member is '\\'. The longnames member is a series of
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// strings of archive member names. A name appears here only when there is insufficient
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// room in the Name field (16 bytes). The longnames member can be empty, though its
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// header must appear.
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//
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// The strings are null-terminated. Each string begins immediately after the null byte
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// in the previous string.
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//
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bool is_ar_file(linput_t *li, qoff64_t offset, bool include_aix);
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#pragma pack(pop)
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#endif /* __AR_H__ */
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