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  1. /* coff object file format
  2.    Copyright (C) 1989-2015 Free Software Foundation, Inc.
  3.  
  4.    This file is part of GAS.
  5.  
  6.    GAS is free software; you can redistribute it and/or modify
  7.    it under the terms of the GNU General Public License as published by
  8.    the Free Software Foundation; either version 3, or (at your option)
  9.    any later version.
  10.  
  11.    GAS is distributed in the hope that it will be useful,
  12.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14.    GNU General Public License for more details.
  15.  
  16.    You should have received a copy of the GNU General Public License
  17.    along with GAS; see the file COPYING.  If not, write to the Free
  18.    Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
  19.    02110-1301, USA.  */
  20.  
  21. #ifndef OBJ_FORMAT_H
  22. #define OBJ_FORMAT_H
  23.  
  24. #define OBJ_COFF 1
  25.  
  26. #include "targ-cpu.h"
  27.  
  28. /* This internal_lineno crap is to stop namespace pollution from the
  29.    bfd internal coff headerfile.  */
  30. #define internal_lineno bfd_internal_lineno
  31. #include "coff/internal.h"
  32. #undef internal_lineno
  33.  
  34. /* CPU-specific setup:  */
  35.  
  36. #ifdef TC_ARM
  37. #include "coff/arm.h"
  38. #ifndef TARGET_FORMAT
  39. #define TARGET_FORMAT "coff-arm"
  40. #endif
  41. #endif
  42.  
  43. #ifdef TC_PPC
  44. #ifdef TE_PE
  45. #include "coff/powerpc.h"
  46. #else
  47. #include "coff/rs6000.h"
  48. #endif
  49. #endif
  50.  
  51. #ifdef TC_SPARC
  52. #include "coff/sparc.h"
  53. #endif
  54.  
  55. #ifdef TC_I386
  56. #ifdef TE_PEP
  57. #include "coff/x86_64.h"
  58. #else
  59. #include "coff/i386.h"
  60. #endif
  61.  
  62. #ifndef TARGET_FORMAT
  63. #ifdef TE_PEP
  64. #define TARGET_FORMAT "coff-x86-64"
  65. #else
  66. #define TARGET_FORMAT "coff-i386"
  67. #endif
  68. #endif
  69. #endif
  70.  
  71. #ifdef TC_M68K
  72. #include "coff/m68k.h"
  73. #ifndef TARGET_FORMAT
  74. #define TARGET_FORMAT "coff-m68k"
  75. #endif
  76. #endif
  77.  
  78. #ifdef TC_I960
  79. #include "coff/i960.h"
  80. #define TARGET_FORMAT "coff-Intel-little"
  81. #endif
  82.  
  83. #ifdef TC_Z80
  84. #include "coff/z80.h"
  85. #define TARGET_FORMAT "coff-z80"
  86. #endif
  87.  
  88. #ifdef TC_Z8K
  89. #include "coff/z8k.h"
  90. #define TARGET_FORMAT "coff-z8k"
  91. #endif
  92.  
  93. #ifdef TC_H8300
  94. #include "coff/h8300.h"
  95. #define TARGET_FORMAT "coff-h8300"
  96. #endif
  97.  
  98. #ifdef TC_H8500
  99. #include "coff/h8500.h"
  100. #define TARGET_FORMAT "coff-h8500"
  101. #endif
  102.  
  103. #ifdef TC_SH
  104.  
  105. #ifdef TE_PE
  106. #define COFF_WITH_PE
  107. #endif
  108.  
  109. #include "coff/sh.h"
  110.  
  111. #ifdef TE_PE
  112. #define TARGET_FORMAT "pe-shl"
  113. #else
  114.  
  115. #define TARGET_FORMAT                                   \
  116.   (!target_big_endian                                   \
  117.    ? (sh_small ? "coff-shl-small" : "coff-shl")         \
  118.    : (sh_small ? "coff-sh-small" : "coff-sh"))
  119.  
  120. #endif
  121. #endif
  122.  
  123. #ifdef TC_MIPS
  124. #define COFF_WITH_PE
  125. #include "coff/mipspe.h"
  126. #undef  TARGET_FORMAT
  127. #define TARGET_FORMAT "pe-mips"
  128. #endif
  129.  
  130. #ifdef TC_TIC30
  131. #include "coff/tic30.h"
  132. #define TARGET_FORMAT "coff-tic30"
  133. #endif
  134.  
  135. #ifdef TC_TIC4X
  136. #include "coff/tic4x.h"
  137. #define TARGET_FORMAT "coff2-tic4x"
  138. #endif
  139.  
  140. #ifdef TC_TIC54X
  141. #include "coff/tic54x.h"
  142. #define TARGET_FORMAT "coff1-c54x"
  143. #endif
  144.  
  145. #ifdef TC_MCORE
  146. #include "coff/mcore.h"
  147. #ifndef TARGET_FORMAT
  148. #define TARGET_FORMAT "pe-mcore"
  149. #endif
  150. #endif
  151.  
  152. #ifdef TE_PE
  153. #define obj_set_weak_hook pecoff_obj_set_weak_hook
  154. #define obj_clear_weak_hook pecoff_obj_clear_weak_hook
  155. #endif
  156.  
  157. #ifndef OBJ_COFF_MAX_AUXENTRIES
  158. #define OBJ_COFF_MAX_AUXENTRIES 1
  159. #endif
  160.  
  161. #define obj_symbol_new_hook coff_obj_symbol_new_hook
  162. #define obj_symbol_clone_hook coff_obj_symbol_clone_hook
  163. #define obj_read_begin_hook coff_obj_read_begin_hook
  164.  
  165. #include "bfd/libcoff.h"
  166.  
  167. #define OUTPUT_FLAVOR bfd_target_coff_flavour
  168.  
  169. /* Alter the field names, for now, until we've fixed up the other
  170.    references to use the new name.  */
  171. #ifdef TC_I960
  172. #define TC_SYMFIELD_TYPE        symbolS *
  173. #define sy_tc                   bal
  174. #endif
  175.  
  176. #define OBJ_SYMFIELD_TYPE       unsigned long
  177. #define sy_obj                  sy_obj_flags
  178.  
  179. /* We can't use the predefined section symbols in bfd/section.c, as
  180.    COFF symbols have extra fields.  See bfd/libcoff.h:coff_symbol_type.  */
  181. #ifndef obj_sec_sym_ok_for_reloc
  182. #define obj_sec_sym_ok_for_reloc(SEC)   ((SEC)->owner != 0)
  183. #endif
  184.  
  185. #define SYM_AUXENT(S) \
  186.   (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent)
  187. #define SYM_AUXINFO(S) \
  188.   (&coffsymbol (symbol_get_bfdsym (S))->native[1])
  189.  
  190. /* The number of auxiliary entries.  */
  191. #define S_GET_NUMBER_AUXILIARY(s) \
  192.   (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux)
  193. /* The number of auxiliary entries.  */
  194. #define S_SET_NUMBER_AUXILIARY(s, v)    (S_GET_NUMBER_AUXILIARY (s) = (v))
  195.  
  196. /* True if a symbol name is in the string table, i.e. its length is > 8.  */
  197. #define S_IS_STRING(s)          (strlen (S_GET_NAME (s)) > 8 ? 1 : 0)
  198.  
  199. /* Auxiliary entry macros. SA_ stands for symbol auxiliary.  */
  200. /* Omit the tv related fields.  */
  201. /* Accessors.  */
  202.  
  203. #define SA_GET_SYM_TAGNDX(s)    (SYM_AUXENT (s)->x_sym.x_tagndx.l)
  204. #define SA_GET_SYM_LNNO(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
  205. #define SA_GET_SYM_SIZE(s)      (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
  206. #define SA_GET_SYM_FSIZE(s)     (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
  207. #define SA_GET_SYM_LNNOPTR(s)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
  208. #define SA_GET_SYM_ENDNDX(s)    (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx)
  209. #define SA_GET_SYM_DIMEN(s,i)   (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
  210. #define SA_GET_FILE_FNAME(s)    (SYM_AUXENT (s)->x_file.x_fname)
  211. #define SA_GET_SCN_SCNLEN(s)    (SYM_AUXENT (s)->x_scn.x_scnlen)
  212. #define SA_GET_SCN_NRELOC(s)    (SYM_AUXENT (s)->x_scn.x_nreloc)
  213. #define SA_GET_SCN_NLINNO(s)    (SYM_AUXENT (s)->x_scn.x_nlinno)
  214.  
  215. #define SA_SET_SYM_LNNO(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v))
  216. #define SA_SET_SYM_SIZE(s,v)    (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v))
  217. #define SA_SET_SYM_FSIZE(s,v)   (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v))
  218. #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v))
  219. #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v))
  220. #define SA_SET_FILE_FNAME(s,v)  strncpy (SYM_AUXENT (s)->x_file.x_fname, (v), FILNMLEN)
  221. #define SA_SET_SCN_SCNLEN(s,v)  (SYM_AUXENT (s)->x_scn.x_scnlen = (v))
  222. #define SA_SET_SCN_NRELOC(s,v)  (SYM_AUXENT (s)->x_scn.x_nreloc = (v))
  223. #define SA_SET_SCN_NLINNO(s,v)  (SYM_AUXENT (s)->x_scn.x_nlinno = (v))
  224.  
  225. /* Internal use only definitions. SF_ stands for symbol flags.
  226.  
  227.    These values can be assigned to sy_symbol.ost_flags field of a symbolS.
  228.  
  229.    You'll break i960 if you shift the SYSPROC bits anywhere else.  for
  230.    more on the balname/callname hack, see tc-i960.h.  b.out is done
  231.    differently.  */
  232.  
  233. #define SF_I960_MASK    0x000001ff      /* Bits 0-8 are used by the i960 port.  */
  234. #define SF_SYSPROC      0x0000003f      /* bits 0-5 are used to store the sysproc number.  */
  235. #define SF_IS_SYSPROC   0x00000040      /* bit 6 marks symbols that are sysprocs.  */
  236. #define SF_BALNAME      0x00000080      /* bit 7 marks BALNAME symbols.  */
  237. #define SF_CALLNAME     0x00000100      /* bit 8 marks CALLNAME symbols.  */
  238.  
  239. #define SF_NORMAL_MASK  0x0000ffff      /* bits 12-15 are general purpose.  */
  240.  
  241. #define SF_STATICS      0x00001000      /* Mark the .text & all symbols.  */
  242. #define SF_DEFINED      0x00002000      /* Symbol is defined in this file.  */
  243. #define SF_STRING       0x00004000      /* Symbol name length > 8.  */
  244. #define SF_LOCAL        0x00008000      /* Symbol must not be emitted.  */
  245.  
  246. #define SF_DEBUG_MASK   0xffff0000      /* bits 16-31 are debug info.  */
  247.  
  248. #define SF_FUNCTION     0x00010000      /* The symbol is a function.  */
  249. #define SF_PROCESS      0x00020000      /* Process symbol before write.  */
  250. #define SF_TAGGED       0x00040000      /* Is associated with a tag.  */
  251. #define SF_TAG          0x00080000      /* Is a tag.  */
  252. #define SF_DEBUG        0x00100000      /* Is in debug or abs section.  */
  253. #define SF_GET_SEGMENT  0x00200000      /* Get the section of the forward symbol.  */
  254. /* All other bits are unused.  */
  255.  
  256. /* Accessors.  */
  257. #define SF_GET(s)               (* symbol_get_obj (s))
  258. #define SF_GET_DEBUG(s)         (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING)
  259. #define SF_SET_DEBUG(s)         (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING)
  260. #define SF_GET_NORMAL_FIELD(s)  (SF_GET (s) & SF_NORMAL_MASK)
  261. #define SF_GET_DEBUG_FIELD(s)   (SF_GET (s) & SF_DEBUG_MASK)
  262. #define SF_GET_FILE(s)          (SF_GET (s) & SF_FILE)
  263. #define SF_GET_STATICS(s)       (SF_GET (s) & SF_STATICS)
  264. #define SF_GET_DEFINED(s)       (SF_GET (s) & SF_DEFINED)
  265. #define SF_GET_STRING(s)        (SF_GET (s) & SF_STRING)
  266. #define SF_GET_LOCAL(s)         (SF_GET (s) & SF_LOCAL)
  267. #define SF_GET_FUNCTION(s)      (SF_GET (s) & SF_FUNCTION)
  268. #define SF_GET_PROCESS(s)       (SF_GET (s) & SF_PROCESS)
  269. #define SF_GET_TAGGED(s)        (SF_GET (s) & SF_TAGGED)
  270. #define SF_GET_TAG(s)           (SF_GET (s) & SF_TAG)
  271. #define SF_GET_GET_SEGMENT(s)   (SF_GET (s) & SF_GET_SEGMENT)
  272. #define SF_GET_I960(s)          (SF_GET (s) & SF_I960_MASK)     /* Used by i960.  */
  273. #define SF_GET_BALNAME(s)       (SF_GET (s) & SF_BALNAME)       /* Used by i960.  */
  274. #define SF_GET_CALLNAME(s)      (SF_GET (s) & SF_CALLNAME)      /* Used by i960.  */
  275. #define SF_GET_IS_SYSPROC(s)    (SF_GET (s) & SF_IS_SYSPROC)    /* Used by i960.  */
  276. #define SF_GET_SYSPROC(s)       (SF_GET (s) & SF_SYSPROC)       /* Used by i960.  */
  277.  
  278. /* Modifiers.  */
  279. #define SF_SET(s,v)             (SF_GET (s) = (v))
  280. #define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK))
  281. #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
  282. #define SF_SET_FILE(s)          (SF_GET (s) |= SF_FILE)
  283. #define SF_SET_STATICS(s)       (SF_GET (s) |= SF_STATICS)
  284. #define SF_SET_DEFINED(s)       (SF_GET (s) |= SF_DEFINED)
  285. #define SF_SET_STRING(s)        (SF_GET (s) |= SF_STRING)
  286. #define SF_SET_LOCAL(s)         (SF_GET (s) |= SF_LOCAL)
  287. #define SF_CLEAR_LOCAL(s)       (SF_GET (s) &= ~SF_LOCAL)
  288. #define SF_SET_FUNCTION(s)      (SF_GET (s) |= SF_FUNCTION)
  289. #define SF_SET_PROCESS(s)       (SF_GET (s) |= SF_PROCESS)
  290. #define SF_SET_TAGGED(s)        (SF_GET (s) |= SF_TAGGED)
  291. #define SF_SET_TAG(s)           (SF_GET (s) |= SF_TAG)
  292. #define SF_SET_GET_SEGMENT(s)   (SF_GET (s) |= SF_GET_SEGMENT)
  293. #define SF_SET_I960(s,v)        (SF_GET (s) |= ((v) & SF_I960_MASK))    /* Used by i960.  */
  294. #define SF_SET_BALNAME(s)       (SF_GET (s) |= SF_BALNAME)              /* Used by i960.  */
  295. #define SF_SET_CALLNAME(s)      (SF_GET (s) |= SF_CALLNAME)             /* Used by i960.  */
  296. #define SF_SET_IS_SYSPROC(s)    (SF_GET (s) |= SF_IS_SYSPROC)           /* Used by i960.  */
  297. #define SF_SET_SYSPROC(s,v)     (SF_GET (s) |= ((v) & SF_SYSPROC))      /* Used by i960.  */
  298.  
  299.  
  300. /*  Line number handling.  */
  301. extern int text_lineno_number;
  302. extern int coff_line_base;
  303. extern int coff_n_line_nos;
  304. extern symbolS *coff_last_function;
  305.  
  306. #define obj_emit_lineno(WHERE, LINE, FILE_START)        abort ()
  307. #define obj_app_file(name, app)      c_dot_file_symbol (name, app)
  308. #define obj_frob_symbol(S,P)         coff_frob_symbol (S, & P)
  309. #define obj_frob_section(S)          coff_frob_section (S)
  310. #define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
  311. #ifndef obj_adjust_symtab
  312. #define obj_adjust_symtab()          coff_adjust_symtab ()
  313. #endif
  314.  
  315. /* Forward the segment of a forwarded symbol, handle assignments that
  316.    just copy symbol values, etc.  */
  317. #ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
  318. #ifndef TE_I386AIX
  319. #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
  320.   (SF_GET_GET_SEGMENT (dest) \
  321.    ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
  322.    : 0)
  323. #else
  324. #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
  325.   (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
  326.    ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
  327.    : 0)
  328. #endif
  329. #endif
  330.  
  331. /* Sanity check.  */
  332.  
  333. #ifdef TC_I960
  334. #ifndef C_LEAFSTAT
  335. hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it.
  336. #endif /* no C_LEAFSTAT */
  337. #endif /* TC_I960 */
  338.  
  339. extern const pseudo_typeS coff_pseudo_table[];
  340.  
  341. #ifndef obj_pop_insert
  342. #define obj_pop_insert() pop_insert (coff_pseudo_table)
  343. #endif
  344.  
  345. /* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK
  346.    to redefine the symbol later on.  This can happen if C symbols use
  347.    a prefix, and a symbol is defined both with and without the prefix,
  348.    as in start/_start/__start in gcc/libgcc1-test.c.  */
  349. #define RESOLVE_SYMBOL_REDEFINITION(sym)                \
  350. (SF_GET_GET_SEGMENT (sym)                               \
  351.  ? (sym->sy_frag = frag_now,                            \
  352.     S_SET_VALUE (sym, frag_now_fix ()),                 \
  353.     S_SET_SEGMENT (sym, now_seg),                       \
  354.     0)                                                  \
  355.  : 0)
  356.  
  357. /* Stabs in a coff file go into their own section.  */
  358. #define SEPARATE_STAB_SECTIONS 1
  359.  
  360. /* We need 12 bytes at the start of the section to hold some initial
  361.    information.  */
  362. #define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg)
  363.  
  364. /* Store the number of relocations in the section aux entry.  */
  365. #define SET_SECTION_RELOCS(sec, relocs, n) \
  366.   SA_SET_SCN_NRELOC (section_symbol (sec), n)
  367.  
  368. #define obj_app_file(name, app) c_dot_file_symbol (name, app)
  369.  
  370. extern int  S_SET_DATA_TYPE              (symbolS *, int);
  371. extern int  S_SET_STORAGE_CLASS          (symbolS *, int);
  372. extern int  S_GET_STORAGE_CLASS          (symbolS *);
  373. extern void SA_SET_SYM_ENDNDX            (symbolS *, symbolS *);
  374. extern void coff_add_linesym             (symbolS *);
  375. extern void c_dot_file_symbol            (const char *, int);
  376. extern void coff_frob_symbol             (symbolS *, int *);
  377. extern void coff_adjust_symtab           (void);
  378. extern void coff_frob_section            (segT);
  379. extern void coff_adjust_section_syms     (bfd *, asection *, void *);
  380. extern void coff_frob_file_after_relocs  (void);
  381. extern void coff_obj_symbol_new_hook     (symbolS *);
  382. extern void coff_obj_symbol_clone_hook   (symbolS *, symbolS *);
  383. extern void coff_obj_read_begin_hook     (void);
  384. #ifdef TE_PE
  385. extern void pecoff_obj_set_weak_hook     (symbolS *);
  386. extern void pecoff_obj_clear_weak_hook   (symbolS *);
  387. #endif
  388. extern void obj_coff_section             (int);
  389. extern segT obj_coff_add_segment         (const char *);
  390. extern void obj_coff_section             (int);
  391. extern void c_dot_file_symbol            (const char *, int);
  392. extern segT s_get_segment                (symbolS *);
  393. #ifndef tc_coff_symbol_emit_hook
  394. extern void tc_coff_symbol_emit_hook     (symbolS *);
  395. #endif
  396. extern void obj_coff_pe_handle_link_once (void);
  397. extern void obj_coff_init_stab_section   (segT);
  398. extern void c_section_header             (struct internal_scnhdr *,
  399.                                           char *, long, long, long, long,
  400.                                           long, long, long, long);
  401. extern void obj_coff_seh_do_final (void);
  402.  
  403. #ifndef obj_coff_generate_pdata
  404. #define obj_coff_generate_pdata obj_coff_seh_do_final
  405. #endif
  406.  
  407.  
  408. #endif /* OBJ_FORMAT_H */
  409.