X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gas%2Fconfig%2Fobj-som.c;h=82b0af420a7fe581f8bf5fc74dcf02e8819acded;hb=1c912705af057b0d30ea51af46d8a00014a84034;hp=80beab33b5169686ad6e28d10ab0cdd84e5c8740;hpb=e98fe4f7b54cbdf29aef9287bbb1bea8801dd05a;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/config/obj-som.c b/gas/config/obj-som.c index 80beab33b5..82b0af420a 100644 --- a/gas/config/obj-som.c +++ b/gas/config/obj-som.c @@ -1,11 +1,11 @@ /* SOM object file format. - Copyright (C) 1993 Free Software Foundation, Inc. + Copyright (C) 1993-2020 Free Software Foundation, Inc. This file is part of GAS, the GNU Assembler. GAS is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2, + published by the Free Software Foundation; either version 3, or (at your option) any later version. GAS is distributed in the hope that it will be useful, but @@ -13,9 +13,10 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - You should have received a copy of the GNU General Public - License along with GAS; see the file COPYING. If not, write - to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + You should have received a copy of the GNU General Public License + along with GAS; see the file COPYING. If not, write to the Free + Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. Written by the Center for Software Science at the University of Utah and by Cygnus Support. */ @@ -23,32 +24,107 @@ #include "as.h" #include "subsegs.h" #include "aout/stab_gnu.h" -#include "obstack.h" - -/* SOM does not need any pseudo-ops. */ - -const pseudo_typeS obj_pseudo_table[] = -{ - {NULL} -}; static int version_seen = 0; static int copyright_seen = 0; +static int compiler_seen = 0; /* Unused by SOM. */ -void obj_read_begin_hook () {} + +void +obj_read_begin_hook (void) +{ +} + +/* Handle a .compiler directive. This is intended to create the + compilation unit auxiliary header for MPE such that the linkeditor + can handle SOM extraction from archives. The format of the quoted + string is "sourcefile language version" and is delimited by blanks. */ + +void +obj_som_compiler (int unused ATTRIBUTE_UNUSED) +{ + char *buf; + char c; + char *filename; + char *language_name; + char *p; + char *version_id; + + if (compiler_seen) + { + as_bad (_("Only one .compiler pseudo-op per file!")); + ignore_rest_of_line (); + return; + } + + SKIP_WHITESPACE (); + if (*input_line_pointer == '\"') + { + buf = input_line_pointer; + ++input_line_pointer; + while (is_a_char (next_char_of_string ())) + ; + c = *input_line_pointer; + *input_line_pointer = '\000'; + } + else + { + as_bad (_("Expected quoted string")); + ignore_rest_of_line (); + return; + } + + /* Parse the quoted string into its component parts. Skip the + quote. */ + filename = buf + 1; + p = filename; + while (*p != ' ' && *p != '\000') + p++; + if (*p == '\000') + { + as_bad (_(".compiler directive missing language and version")); + return; + } + *p = '\000'; + + language_name = ++p; + while (*p != ' ' && *p != '\000') + p++; + if (*p == '\000') + { + as_bad (_(".compiler directive missing version")); + return; + } + *p = '\000'; + + version_id = ++p; + while (*p != '\000') + p++; + /* Remove the trailing quote. */ + *(--p) = '\000'; + + compiler_seen = 1; + if (! bfd_som_attach_compilation_unit (stdoutput, filename, language_name, + "GNU Tools", version_id)) + { + bfd_perror (stdoutput->filename); + as_fatal (_("FATAL: Attaching compiler header %s"), stdoutput->filename); + } + *input_line_pointer = c; + demand_empty_rest_of_line (); +} /* Handle a .version directive. */ void -obj_som_version (unused) - int unused; +obj_som_version (int unused ATTRIBUTE_UNUSED) { char *version, c; if (version_seen) { - as_bad ("Only one .version pseudo-op per file!"); + as_bad (_("Only one .version pseudo-op per file!")); ignore_rest_of_line (); return; } @@ -65,13 +141,16 @@ obj_som_version (unused) } else { - as_bad ("Expected quoted string"); + as_bad (_("Expected quoted string")); ignore_rest_of_line (); return; } version_seen = 1; - bfd_som_attach_aux_hdr (stdoutput, VERSION_AUX_ID, version); + if (!bfd_som_attach_aux_hdr (stdoutput, VERSION_AUX_ID, version)) + as_fatal (_("attaching version header %s: %s"), + stdoutput->filename, bfd_errmsg (bfd_get_error ())); + *input_line_pointer = c; demand_empty_rest_of_line (); } @@ -81,14 +160,13 @@ obj_som_version (unused) If you care about copyright strings that much, you fix it. */ void -obj_som_copyright (unused) - int unused; +obj_som_copyright (int unused ATTRIBUTE_UNUSED) { char *copyright, c; if (copyright_seen) { - as_bad ("Only one .copyright pseudo-op per file!"); + as_bad (_("Only one .copyright pseudo-op per file!")); ignore_rest_of_line (); return; } @@ -105,13 +183,16 @@ obj_som_copyright (unused) } else { - as_bad ("Expected quoted string"); + as_bad (_("Expected quoted string")); ignore_rest_of_line (); return; } copyright_seen = 1; - bfd_som_attach_aux_hdr (stdoutput, COPYRIGHT_AUX_ID, copyright); + if (!bfd_som_attach_aux_hdr (stdoutput, COPYRIGHT_AUX_ID, copyright)) + as_fatal (_("attaching copyright header %s: %s"), + stdoutput->filename, bfd_errmsg (bfd_get_error ())); + *input_line_pointer = c; demand_empty_rest_of_line (); } @@ -124,44 +205,45 @@ obj_som_copyright (unused) which BFD does not understand. */ void -obj_som_init_stab_section (seg) - segT seg; +obj_som_init_stab_section (segT seg) { segT saved_seg = now_seg; segT space; subsegT saved_subseg = now_subseg; - char *p, *file; + char *p; + const char * file; unsigned int stroff; /* Make the space which will contain the debug subspaces. */ space = bfd_make_section_old_way (stdoutput, "$GDB_DEBUG$"); /* Set SOM specific attributes for the space. In particular we set - the space "defined", "private", "sort_key", and "spnum" values. + the space "defined", "private", "sort_key", and "spnum" values. Due to a bug in pxdb (called by hpux linker), the sort keys of the various stabs spaces/subspaces need to be "small". We reserve range 72/73 which appear to work well. */ obj_set_section_attributes (space, 1, 1, 72, 2); - bfd_set_section_alignment (stdoutput, space, 2); + bfd_set_section_alignment (space, 2); /* Set the containing space for both stab sections to be $GDB_DEBUG$ (just created above). Also set some attributes which BFD does not understand. In particular, access bits, sort keys, and load quadrant. */ - obj_set_subsection_attributes (seg, space, 0x1f, 73, 0); - bfd_set_section_alignment (stdoutput, seg, 2); + obj_set_subsection_attributes (seg, space, 0x1f, 73, 0, 0, 0, 0); + bfd_set_section_alignment (seg, 2); - /* Make some space for the first stab entry which is special. + /* Make some space for the first special stab entry and zero the memory. It contains information about the length of this file's - stab string and the like. Using it avoids the need to + stab string and the like. Using it avoids the need to relocate the stab strings. The $GDB_STRINGS$ space will be created as a side effect of the call to get_stab_string_offset. */ p = frag_more (12); - as_where (&file, (unsigned int *) NULL); - stroff = get_stab_string_offset (file, "$GDB_STRINGS$"); + memset (p, 0, 12); + file = as_where ((unsigned int *) NULL); + stroff = get_stab_string_offset (file, "$GDB_STRINGS$", FALSE); know (stroff == 1); md_number_to_chars (p, stroff, 4); seg_info (seg)->stabu.p = p; @@ -171,8 +253,8 @@ obj_som_init_stab_section (seg) not understand. In particular, access bits, sort keys, and load quadrant. */ seg = bfd_get_section_by_name (stdoutput, "$GDB_STRINGS$"); - obj_set_subsection_attributes (seg, space, 0x1f, 72, 0); - bfd_set_section_alignment (stdoutput, seg, 2); + obj_set_subsection_attributes (seg, space, 0x1f, 72, 0, 0, 0, 0); + bfd_set_section_alignment (seg, 2); subseg_set (saved_seg, saved_subseg); } @@ -180,10 +262,7 @@ obj_som_init_stab_section (seg) /* Fill in the counts in the first entry in a .stabs section. */ static void -adjust_stab_sections (abfd, sec, xxx) - bfd *abfd; - asection *sec; - PTR xxx; +adjust_stab_sections (bfd *abfd, asection *sec, void *xxx ATTRIBUTE_UNUSED) { asection *strsec; char *p; @@ -194,45 +273,55 @@ adjust_stab_sections (abfd, sec, xxx) strsec = bfd_get_section_by_name (abfd, "$GDB_STRINGS$"); if (strsec) - strsz = bfd_section_size (abfd, strsec); + strsz = bfd_section_size (strsec); else strsz = 0; - nsyms = bfd_section_size (abfd, sec) / 12 - 1; + nsyms = bfd_section_size (sec) / 12 - 1; p = seg_info (sec)->stabu.p; - assert (p != 0); + gas_assert (p != 0); bfd_h_put_16 (abfd, (bfd_vma) nsyms, (bfd_byte *) p + 6); bfd_h_put_32 (abfd, (bfd_vma) strsz, (bfd_byte *) p + 8); } -#if 0 -/* Adjust the VMA address for each $CODE$ subspace. */ -static void -adjust_code_sections (abfd, sec, xxx) - bfd *abfd; - asection *sec; - PTR xxx; +/* Called late in the assembly phase to adjust the special + stab entry and to set the starting address for each code subspace. */ + +void +som_frob_file (void) { - static unsigned size_so_far = 0; + bfd_map_over_sections (stdoutput, adjust_stab_sections, (void *) 0); +} - if (strcmp (sec->name, "$CODE$")) - return; +static void +obj_som_weak (int ignore ATTRIBUTE_UNUSED) +{ + char *name; + int c; + symbolS *symbolP; - bfd_set_section_vma (stdoutput, sec, size_so_far); - size_so_far += bfd_get_section_size_before_reloc (sec); + do + { + c = get_symbol_name (&name); + symbolP = symbol_find_or_make (name); + *input_line_pointer = c; + SKIP_WHITESPACE_AFTER_NAME (); + S_SET_WEAK (symbolP); + if (c == ',') + { + input_line_pointer++; + SKIP_WHITESPACE (); + if (*input_line_pointer == '\n') + c = '\n'; + } + } + while (c == ','); + demand_empty_rest_of_line (); } -#endif - -/* Called late in the asssembly phase to adjust the special - stab entry and to set the starting address for each code subspace. */ -void -som_frob_file () +const pseudo_typeS obj_pseudo_table[] = { - bfd_map_over_sections (stdoutput, adjust_stab_sections, (PTR) 0); -#if 0 - See comment in tc-hppa.c:pa_proc about GDB lossage - bfd_map_over_sections (stdoutput, adjust_code_sections, (PTR) 0); -#endif -} + {"weak", obj_som_weak, 0}, + {NULL, NULL, 0} +};