diff options
Diffstat (limited to 'contrib/gcc/config/i386/svr3dbx.h')
-rw-r--r-- | contrib/gcc/config/i386/svr3dbx.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/contrib/gcc/config/i386/svr3dbx.h b/contrib/gcc/config/i386/svr3dbx.h new file mode 100644 index 000000000000..d3348d552928 --- /dev/null +++ b/contrib/gcc/config/i386/svr3dbx.h @@ -0,0 +1,97 @@ +/* Definitions for Intel 386 running system V, using dbx-in-coff encapsulation. + Copyright (C) 1992, 1995 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC 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, or (at your option) +any later version. + +GNU CC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +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 GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#include "i386/svr3gas.h" + +/* We do not want to output SDB debugging information. */ + +#undef SDB_DEBUGGING_INFO + +/* We want to output DBX debugging information. */ + +#define DBX_DEBUGGING_INFO + +/* Compensate for botch in dbxout_init/dbxout_source_file which + unconditionally drops the first character from ltext_label_name */ + +#undef ASM_GENERATE_INTERNAL_LABEL +#define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER) \ + sprintf ((BUF), "*.%s%d", (PREFIX), (NUMBER)) + +/* With the current gas, .align N aligns to an N-byte boundary. + This is done to be compatible with the system assembler. + You must specify -DOTHER_ALIGN when building gas-1.38.1. */ + +#undef ASM_OUTPUT_ALIGN +#define ASM_OUTPUT_ALIGN(FILE,LOG) \ + if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG)) + +/* Align labels, etc. at 4-byte boundaries. + For the 486, align to 16-byte boundary for sake of cache. */ + +#undef ASM_OUTPUT_ALIGN_CODE +#define ASM_OUTPUT_ALIGN_CODE(FILE) \ + fprintf ((FILE), "\t.align %d,0x90\n", \ + 1 << i386_align_jumps) + +/* Align start of loop at 4-byte boundary. */ + +#undef ASM_OUTPUT_LOOP_ALIGN +#define ASM_OUTPUT_LOOP_ALIGN(FILE) \ + fprintf ((FILE), "\t.align %d,0x90\n", 1 << i386_align_loops); + + +/* Additional overrides needed for dbx-in-coff gas, mostly taken from pbb.h */ + +/* Although the gas we use can create .ctor and .dtor sections from N_SETT + stabs, it does not support section directives, so we need to have the loader + define the lists. + */ +#define CTOR_LISTS_DEFINED_EXTERNALLY + +/* similar to default, but allows for the table defined by ld with svr3.ifile. + nptrs is always 0. So we need to instead check that __DTOR_LIST__[1] != 0. + The old check is left in so that the same macro can be used if and when + a future version of gas does support section directives. */ + +#define DO_GLOBAL_DTORS_BODY {int nptrs = *(int *)__DTOR_LIST__; int i; \ + if (nptrs == -1 || (__DTOR_LIST__[0] == 0 && __DTOR_LIST__[1] != 0)) \ + for (nptrs = 0; __DTOR_LIST__[nptrs + 1] != 0; nptrs++); \ + for (i = nptrs; i >= 1; i--) \ + __DTOR_LIST__[i] (); } + +/* Use crt1.o as a startup file and crtn.o as a closing file. */ +/* + * The loader directive file svr3.ifile defines how to merge the constructor + * sections into the data section. Also, since gas only puts out those + * sections in response to N_SETT stabs, and does not (yet) have a + * ".sections" directive, svr3.ifile also defines the list symbols + * __DTOR_LIST__ and __CTOR_LIST__. + */ +#undef STARTFILE_SPEC +#define STARTFILE_SPEC \ + "%{!r:%{!z:svr3.ifile%s}%{z:svr3z.ifile%s}}\ + %{pg:gcrt1.o%s}%{!pg:%{posix:%{p:mcrtp1.o%s}%{!p:crtp1.o%s}}%{!posix:%{p:mcrt1.o%s}%{!p:crt1.o%s}}} \ + %{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp}" + +#define ENDFILE_SPEC "crtn.o%s" + +#undef LIB_SPEC +#define LIB_SPEC "%{posix:-lcposix} %{shlib:-lc_s} -lc -lg" |