* config/m68k/dpx2.mh (NATDEPFILES): Remove duplicate inclusion
of inftarg.o. * config/m68k/tm-dpx2.h (CANNOT_STORE_REGISTER): Define to inhibit writing of floating registers, the dpx2 kernel disallows it. * irix5-nat.c (LM_ADDR): The loaded address of the shared library is contained in o_praw. * irix5-nat.c (solib_map_sections): Adjust sections by the difference between the loaded address and the prelinked address. * irix5-nat.c (solib_address): Use LM_ADDR for the loaded start address. * mdebugread.c (parse_symbol): Do not relocate stEnd/scText symbols, their value is absolute. * mdebugread.c (parse_partial_symbols): Handle Irix 5.2 shared libraries fh->adr fields of zero. Relocate minimal symbol values upon readin. Relocate non-stabs symbols upon readin. * mdebugread.c (psymtab_to_symtab_1): Use pst->textlow for the start address of the outermost block. * mdebugread.c (parse_lines, parse_procedure): Pass in pst instead of section_offsets and use relocated pst->textlow for line number and procedure address relocations. From gmo@MicroUnity.com (Guillermo A. Loyola): * mdebugread.c (parse_symbol, parse_partial_symbols, cross_ref): Handle SGI Irix5 stIndirect symbol type.
This commit is contained in:
Peter Schauer
parent
b132667509
commit
33c66e44ed
3 changed files with 190 additions and 36 deletions
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@ -1,3 +1,30 @@
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Sun Jun 12 03:51:52 1994 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
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* config/m68k/dpx2.mh (NATDEPFILES): Remove duplicate inclusion
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of inftarg.o.
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* config/m68k/tm-dpx2.h (CANNOT_STORE_REGISTER): Define to inhibit
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writing of floating registers, the dpx2 kernel disallows it.
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* irix5-nat.c (LM_ADDR): The loaded address of the shared library
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is contained in o_praw.
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* irix5-nat.c (solib_map_sections): Adjust sections by the
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difference between the loaded address and the prelinked address.
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* irix5-nat.c (solib_address): Use LM_ADDR for the loaded start
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address.
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* mdebugread.c (parse_symbol): Do not relocate stEnd/scText
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symbols, their value is absolute.
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* mdebugread.c (parse_partial_symbols): Handle Irix 5.2 shared
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libraries fh->adr fields of zero. Relocate minimal symbol values
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upon readin. Relocate non-stabs symbols upon readin.
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* mdebugread.c (psymtab_to_symtab_1): Use pst->textlow for the
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start address of the outermost block.
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* mdebugread.c (parse_lines, parse_procedure): Pass in pst
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instead of section_offsets and use relocated pst->textlow for
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line number and procedure address relocations.
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From gmo@MicroUnity.com (Guillermo A. Loyola):
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* mdebugread.c (parse_symbol, parse_partial_symbols, cross_ref):
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Handle SGI Irix5 stIndirect symbol type.
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Fri Jun 10 14:52:56 1994 Kung Hsu (kung@mexican.cygnus.com)
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* breakpoint.c: fix a syntax error native cc does not like.
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@ -1,5 +1,6 @@
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/* Native support for the SGI Iris running IRIX version 5, for GDB.
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Copyright 1988, 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
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Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994
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Free Software Foundation, Inc.
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Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
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and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
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Implemented for Irix 4.x by Garrett A. Wollman.
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@ -212,7 +213,7 @@ static char *bkpt_names[] = {
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#define DEBUG_BASE "__rld_obj_head"
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/* How to get the loaded address of a shared library. */
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#define LM_ADDR(so) ((so)->lm.o_base_address)
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#define LM_ADDR(so) ((so)->lm.o_praw)
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char shadow_contents[BREAKPOINT_MAX]; /* Stash old bkpt addr contents */
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@ -303,6 +304,7 @@ solib_map_sections (so)
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struct section_table *p;
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struct cleanup *old_chain;
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bfd *abfd;
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CORE_ADDR offset;
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filename = tilde_expand (so -> lm.o_path);
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old_chain = make_cleanup (free, filename);
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@ -342,13 +344,20 @@ solib_map_sections (so)
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bfd_get_filename (exec_bfd), bfd_errmsg (bfd_get_error ()));
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}
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/* Irix 5 shared objects are pre-linked to particular addresses
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although the dynamic linker may have to relocate them if the
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address ranges of the libraries used by the main program clash.
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The offset is the difference between the address where the object
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is mapped and the binding address of the shared library. */
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offset = (CORE_ADDR) LM_ADDR (so) - so -> lm.o_base_address;
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for (p = so -> sections; p < so -> sections_end; p++)
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{
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/* Relocate the section binding addresses as recorded in the shared
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object's file by the base address to which the object was actually
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mapped. */
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p -> addr += (CORE_ADDR) LM_ADDR (so);
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p -> endaddr += (CORE_ADDR) LM_ADDR (so);
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object's file by the offset to get the address to which the
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object was actually mapped. */
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p -> addr += offset;
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p -> endaddr += offset;
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so -> lmend = (CORE_ADDR) max (p -> endaddr, so -> lmend);
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if (STREQ (p -> the_bfd_section -> name, ".text"))
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{
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@ -773,7 +782,7 @@ solib_address (address)
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{
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if (so -> lm.o_path[0])
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{
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if ((address >= (CORE_ADDR) so->lm.o_base_address) &&
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if ((address >= (CORE_ADDR) LM_ADDR (so)) &&
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(address < (CORE_ADDR) so -> lmend))
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{
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return (1);
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176
gdb/mdebugread.c
176
gdb/mdebugread.c
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@ -681,12 +681,20 @@ parse_symbol (sh, ax, ext_sh, bigend, section_offsets)
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switch (sh->sc)
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{
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case scText:
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sh->value += ANOFFSET (section_offsets, SECT_OFF_TEXT);
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/* The value of a stEnd symbol is the displacement from the
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corresponding start symbol value, do not relocate it. */
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if (sh->st != stEnd)
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sh->value += ANOFFSET (section_offsets, SECT_OFF_TEXT);
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break;
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case scData:
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case scSData:
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case scRData:
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case scPData:
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case scXData:
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sh->value += ANOFFSET (section_offsets, SECT_OFF_DATA);
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break;
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case scBss:
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case scSBss:
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sh->value += ANOFFSET (section_offsets, SECT_OFF_BSS);
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break;
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}
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@ -957,6 +965,13 @@ parse_symbol (sh, ax, ext_sh, bigend, section_offsets)
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Just ignore it. */
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break;
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case stIndirect:
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/* Irix5 cc puts out a stIndirect for struct x if it is not
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yet defined when it encounters
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struct y { struct x *xp; };
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Just ignore it. */
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break;
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default:
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complain (&block_member_complaint, tsym.st);
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}
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@ -1206,6 +1221,11 @@ parse_symbol (sh, ax, ext_sh, bigend, section_offsets)
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f->bitsize = bitsize;
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break;
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case stIndirect: /* forward declaration on Irix5 */
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/* Forward declarations from Irix5 cc are handled by cross_ref,
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skip them. */
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break;
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case stTypedef: /* type definition */
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/* Typedefs for forward declarations and opaque structs from alpha cc
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are handled by cross_ref, skip them. */
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@ -1236,7 +1256,7 @@ parse_symbol (sh, ax, ext_sh, bigend, section_offsets)
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generates a cross referencing stTypedef for x and xx.
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The user visible effect of this is that the type of a pointer
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to struct foo sometimes is given as `foo *' instead of `struct foo *'.
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The problem is fixed with alpha cc. */
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The problem is fixed with alpha cc and Irix5 cc. */
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/* However if the typedef cross references to an opaque aggregate, it
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is safe to omit it from the symbol table. */
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@ -1722,14 +1742,14 @@ upgrade_type (fd, tpp, tq, ax, bigend, sym_name)
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in question, or NULL to use top_stack->cur_block. */
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static void parse_procedure PARAMS ((PDR *, struct symtab *, unsigned long,
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struct section_offsets *));
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struct partial_symtab *));
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static void
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parse_procedure (pr, search_symtab, first_off, section_offsets)
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parse_procedure (pr, search_symtab, first_off, pst)
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PDR *pr;
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struct symtab *search_symtab;
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unsigned long first_off;
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struct section_offsets *section_offsets;
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struct partial_symtab *pst;
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{
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struct symbol *s, *i;
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struct block *b;
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@ -1834,8 +1854,7 @@ parse_procedure (pr, search_symtab, first_off, section_offsets)
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e = (struct mips_extra_func_info *) SYMBOL_VALUE (i);
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e->pdr = *pr;
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e->pdr.isym = (long) s;
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e->pdr.adr += cur_fdr->adr - first_off
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+ ANOFFSET (section_offsets, SECT_OFF_TEXT);
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e->pdr.adr += pst->textlow - first_off;
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/* Correct incorrect setjmp procedure descriptor from the library
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to make backtrace through setjmp work. */
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@ -1958,13 +1977,16 @@ parse_external (es, bigend, section_offsets)
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numbers can go back and forth, apparently we can live
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with that and do not need to reorder our linetables */
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static void parse_lines PARAMS ((FDR *, PDR *, struct linetable *, int,
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struct partial_symtab *));
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static void
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parse_lines (fh, pr, lt, maxlines, section_offsets)
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parse_lines (fh, pr, lt, maxlines, pst)
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FDR *fh;
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PDR *pr;
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struct linetable *lt;
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int maxlines;
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struct section_offsets *section_offsets;
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struct partial_symtab *pst;
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{
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unsigned char *base;
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int j, k;
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@ -1996,8 +2018,7 @@ parse_lines (fh, pr, lt, maxlines, section_offsets)
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halt = base + fh->cbLine;
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base += pr->cbLineOffset;
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adr = fh->adr + pr->adr - first_off
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+ ANOFFSET (section_offsets, SECT_OFF_TEXT);
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adr = pst->textlow + pr->adr - first_off;
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l = adr >> 2; /* in words */
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for (lineno = pr->lnLow; base < halt; )
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@ -2071,6 +2092,19 @@ parse_partial_symbols (objfile, section_offsets)
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struct cleanup *old_chain;
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char *name;
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enum language prev_language;
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asection *text_sect;
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int relocatable = 0;
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/* Irix 5.2 shared libraries have a fh->adr field of zero, but
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the shared libraries are prelinked at a high memory address.
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We have to adjust the start address of the object file for this case,
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by setting it to the start address of the first procedure in the file.
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But we should do no adjustments if we are debugging a .o file, where
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the text section (and fh->adr) really starts at zero. */
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text_sect = bfd_get_section_by_name (cur_bfd, ".text");
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if (text_sect != NULL
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&& (bfd_get_section_flags (cur_bfd, text_sect) & SEC_RELOC))
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relocatable = 1;
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extern_tab = (EXTR *) obstack_alloc (&objfile->psymbol_obstack,
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sizeof (EXTR) * hdr->iextMax);
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@ -2159,6 +2193,7 @@ parse_partial_symbols (objfile, section_offsets)
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for (; ext_in < ext_in_end; ext_in++)
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{
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enum minimal_symbol_type ms_type = mst_text;
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CORE_ADDR svalue = ext_in->asym.value;
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/* The Irix 5 native tools seem to sometimes generate bogus
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external symbols. */
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@ -2184,9 +2219,11 @@ parse_partial_symbols (objfile, section_offsets)
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switch (ext_in->asym.st)
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{
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case stProc:
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svalue += ANOFFSET (section_offsets, SECT_OFF_TEXT);
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break;
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case stStaticProc:
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ms_type = mst_file_text;
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svalue += ANOFFSET (section_offsets, SECT_OFF_TEXT);
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break;
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case stGlobal:
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if (ext_in->asym.sc == scCommon)
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@ -2200,9 +2237,15 @@ parse_partial_symbols (objfile, section_offsets)
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|| ext_in->asym.sc == scRData
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|| ext_in->asym.sc == scPData
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|| ext_in->asym.sc == scXData)
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ms_type = mst_data;
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{
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ms_type = mst_data;
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svalue += ANOFFSET (section_offsets, SECT_OFF_DATA);
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}
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else
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ms_type = mst_bss;
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{
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ms_type = mst_bss;
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svalue += ANOFFSET (section_offsets, SECT_OFF_BSS);
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}
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break;
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case stLabel:
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if (ext_in->asym.sc == scAbs)
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@ -2210,15 +2253,24 @@ parse_partial_symbols (objfile, section_offsets)
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else if (ext_in->asym.sc == scText
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|| ext_in->asym.sc == scInit
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|| ext_in->asym.sc == scFini)
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ms_type = mst_file_text;
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{
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ms_type = mst_file_text;
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svalue += ANOFFSET (section_offsets, SECT_OFF_TEXT);
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}
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else if (ext_in->asym.sc == scData
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|| ext_in->asym.sc == scSData
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|| ext_in->asym.sc == scRData
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|| ext_in->asym.sc == scPData
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|| ext_in->asym.sc == scXData)
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ms_type = mst_file_data;
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{
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ms_type = mst_file_data;
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svalue += ANOFFSET (section_offsets, SECT_OFF_DATA);
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}
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else
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ms_type = mst_file_bss;
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{
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ms_type = mst_file_bss;
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svalue += ANOFFSET (section_offsets, SECT_OFF_BSS);
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}
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break;
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case stLocal:
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/* The alpha has the section start addresses in stLocal symbols
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|
@ -2231,7 +2283,7 @@ parse_partial_symbols (objfile, section_offsets)
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ms_type = mst_unknown;
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complain (&unknown_ext_complaint, name);
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}
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prim_record_minimal_symbol (name, ext_in->asym.value, ms_type, objfile);
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prim_record_minimal_symbol (name, svalue, ms_type, objfile);
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}
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/* Pass 3 over files, over local syms: fill in static symbols */
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|
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@ -2239,6 +2291,7 @@ parse_partial_symbols (objfile, section_offsets)
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{
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struct partial_symtab *save_pst;
|
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EXTR *ext_ptr;
|
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CORE_ADDR textlow;
|
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|
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cur_fdr = fh = debug_info->fdr + f_idx;
|
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|
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|
|
@ -2247,9 +2300,20 @@ parse_partial_symbols (objfile, section_offsets)
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fdr_to_pst[f_idx].pst = NULL;
|
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continue;
|
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}
|
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|
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/* Determine the start address for this object file from the
|
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file header and relocate it, except for Irix 5.2 zero fh->adr. */
|
||||
if (fh->cpd)
|
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{
|
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textlow = fh->adr;
|
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if (relocatable || textlow != 0)
|
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textlow += ANOFFSET (section_offsets, SECT_OFF_TEXT);
|
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}
|
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else
|
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textlow = 0;
|
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pst = start_psymtab_common (objfile, section_offsets,
|
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fdr_name (fh),
|
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fh->cpd ? fh->adr : 0,
|
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textlow,
|
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objfile->global_psymbols.next,
|
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objfile->static_psymbols.next);
|
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pst->read_symtab_private = ((char *)
|
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|
|
@ -2356,6 +2420,11 @@ parse_partial_symbols (objfile, section_offsets)
|
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if (sh.st == stEnd)
|
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{
|
||||
long high = procaddr + sh.value;
|
||||
|
||||
/* Kludge for Irix 5.2 zero fh->adr. */
|
||||
if (!relocatable
|
||||
&& (pst->textlow == 0 || procaddr < pst->textlow))
|
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pst->textlow = procaddr;
|
||||
if (high > pst->texthigh)
|
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pst->texthigh = high;
|
||||
}
|
||||
|
|
@ -2441,6 +2510,27 @@ parse_partial_symbols (objfile, section_offsets)
|
|||
|
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name = debug_info->ss + fh->issBase + sh.iss;
|
||||
|
||||
switch (sh.sc)
|
||||
{
|
||||
case scText:
|
||||
/* The value of a stEnd symbol is the displacement from the
|
||||
corresponding start symbol value, do not relocate it. */
|
||||
if (sh.st != stEnd)
|
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sh.value += ANOFFSET (section_offsets, SECT_OFF_TEXT);
|
||||
break;
|
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case scData:
|
||||
case scSData:
|
||||
case scRData:
|
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case scPData:
|
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case scXData:
|
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sh.value += ANOFFSET (section_offsets, SECT_OFF_DATA);
|
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break;
|
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case scBss:
|
||||
case scSBss:
|
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sh.value += ANOFFSET (section_offsets, SECT_OFF_BSS);
|
||||
break;
|
||||
}
|
||||
|
||||
switch (sh.st)
|
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{
|
||||
long high;
|
||||
|
|
@ -2507,6 +2597,12 @@ parse_partial_symbols (objfile, section_offsets)
|
|||
&sh);
|
||||
if (sh.st != stEnd)
|
||||
continue;
|
||||
|
||||
/* Kludge for Irix 5.2 zero fh->adr. */
|
||||
if (!relocatable
|
||||
&& (pst->textlow == 0 || procaddr < pst->textlow))
|
||||
pst->textlow = procaddr;
|
||||
|
||||
high = procaddr + sh.value;
|
||||
if (high > pst->texthigh)
|
||||
pst->texthigh = high;
|
||||
|
|
@ -2530,6 +2626,10 @@ parse_partial_symbols (objfile, section_offsets)
|
|||
class = LOC_STATIC;
|
||||
break;
|
||||
|
||||
case stIndirect:/* Irix5 forward declaration */
|
||||
/* Skip forward declarations from Irix5 cc */
|
||||
goto skip;
|
||||
|
||||
case stTypedef:/* Typedef */
|
||||
/* Skip typedefs for forward declarations and opaque
|
||||
structs from alpha and mips cc. */
|
||||
|
|
@ -2609,6 +2709,7 @@ parse_partial_symbols (objfile, section_offsets)
|
|||
enum address_class class;
|
||||
SYMR *psh;
|
||||
char *name;
|
||||
CORE_ADDR svalue;
|
||||
|
||||
if (ext_ptr->ifd != f_idx)
|
||||
abort ();
|
||||
|
|
@ -2618,6 +2719,25 @@ parse_partial_symbols (objfile, section_offsets)
|
|||
if (psh->sc == scUndefined || psh->sc == scNil)
|
||||
continue;
|
||||
|
||||
svalue = psh->value;
|
||||
switch (psh->sc)
|
||||
{
|
||||
case scText:
|
||||
svalue += ANOFFSET (section_offsets, SECT_OFF_TEXT);
|
||||
break;
|
||||
case scData:
|
||||
case scSData:
|
||||
case scRData:
|
||||
case scPData:
|
||||
case scXData:
|
||||
svalue += ANOFFSET (section_offsets, SECT_OFF_DATA);
|
||||
break;
|
||||
case scBss:
|
||||
case scSBss:
|
||||
svalue += ANOFFSET (section_offsets, SECT_OFF_BSS);
|
||||
break;
|
||||
}
|
||||
|
||||
switch (psh->st)
|
||||
{
|
||||
case stNil:
|
||||
|
|
@ -2645,7 +2765,7 @@ parse_partial_symbols (objfile, section_offsets)
|
|||
ADD_PSYMBOL_ADDR_TO_LIST (name, strlen (name),
|
||||
VAR_NAMESPACE, class,
|
||||
objfile->global_psymbols,
|
||||
(CORE_ADDR) psh->value,
|
||||
svalue,
|
||||
psymtab_language, objfile);
|
||||
}
|
||||
}
|
||||
|
|
@ -2994,7 +3114,7 @@ psymtab_to_symtab_1 (pst, filename)
|
|||
first_off = pr.adr;
|
||||
first_pdr = 0;
|
||||
}
|
||||
parse_procedure (&pr, st, first_off, pst->section_offsets);
|
||||
parse_procedure (&pr, st, first_off, pst);
|
||||
}
|
||||
}
|
||||
else
|
||||
|
|
@ -3036,7 +3156,7 @@ psymtab_to_symtab_1 (pst, filename)
|
|||
top_stack->cur_st = st;
|
||||
top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (st),
|
||||
STATIC_BLOCK);
|
||||
BLOCK_START (top_stack->cur_block) = fh ? fh->adr : 0;
|
||||
BLOCK_START (top_stack->cur_block) = pst->textlow;
|
||||
BLOCK_END (top_stack->cur_block) = 0;
|
||||
top_stack->blocktype = stFile;
|
||||
top_stack->maxsyms = 2 * f_max;
|
||||
|
|
@ -3090,8 +3210,7 @@ psymtab_to_symtab_1 (pst, filename)
|
|||
pdr_ptr += external_pdr_size, pdr_in++)
|
||||
(*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in);
|
||||
|
||||
parse_lines (fh, pr_block, lines, maxlines,
|
||||
pst->section_offsets);
|
||||
parse_lines (fh, pr_block, lines, maxlines, pst);
|
||||
if (lines->nitems < fh->cline)
|
||||
lines = shrink_linetable (lines);
|
||||
|
||||
|
|
@ -3099,8 +3218,7 @@ psymtab_to_symtab_1 (pst, filename)
|
|||
pdr_in = pr_block;
|
||||
pdr_in_end = pdr_in + fh->cpd;
|
||||
for (; pdr_in < pdr_in_end; pdr_in++)
|
||||
parse_procedure (pdr_in, 0, pr_block->adr,
|
||||
pst->section_offsets);
|
||||
parse_procedure (pdr_in, 0, pr_block->adr, pst);
|
||||
|
||||
do_cleanups (old_chain);
|
||||
}
|
||||
|
|
@ -3271,7 +3389,7 @@ cross_ref (fd, ax, tpp, type_code, pname, bigend, sym_name)
|
|||
|
||||
/* Make sure that this type of cross reference can be handled. */
|
||||
if ((sh.sc != scInfo
|
||||
|| (sh.st != stBlock && sh.st != stTypedef
|
||||
|| (sh.st != stBlock && sh.st != stTypedef && sh.st != stIndirect
|
||||
&& sh.st != stStruct && sh.st != stUnion
|
||||
&& sh.st != stEnum))
|
||||
&& (sh.sc != scCommon || sh.st != stBlock))
|
||||
|
|
@ -3292,7 +3410,7 @@ cross_ref (fd, ax, tpp, type_code, pname, bigend, sym_name)
|
|||
{
|
||||
/* We have not yet seen this type. */
|
||||
|
||||
if (sh.iss == 0 && sh.st == stTypedef)
|
||||
if ((sh.iss == 0 && sh.st == stTypedef) || sh.st == stIndirect)
|
||||
{
|
||||
TIR tir;
|
||||
|
||||
|
|
@ -3305,8 +3423,8 @@ cross_ref (fd, ax, tpp, type_code, pname, bigend, sym_name)
|
|||
due to the missing name.
|
||||
b) forward declarations of structs/unions/enums which are defined
|
||||
later in this file or in another file in the same compilation
|
||||
unit. Simply cross reference those again to get the
|
||||
true type.
|
||||
unit. Irix5 cc uses a stIndirect symbol for this.
|
||||
Simply cross reference those again to get the true type.
|
||||
The forward references are not entered in the pending list and
|
||||
in the symbol table. */
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue