Tue Oct 31 16:34:28 1995 David Mosberger-Tang <davidm@azstarnet.com>
* configure.in (alpha-*-linux*): Use ecoff. * configure: Rebuild. * ecoff.c (ecoff_directive_extern): New function. (ecoff_directive_weakext): New function. (ecoff_build_symbols): Handle weak symbols. (ecoff_setup_ext): Likewise. * ecoff.h (ecoff_directive_extern): Declare. (ecoff_directive_weakext): Declare. * symbols.c (S_IS_WEAK): New function. * symbols.h (S_IS_WEAK): Declare. * config/obj-ecoff.c (obj_pseudo_table): Add "extern" and "weakext". * config/tc-mips.c (mips_pseudo_table): Remove "extern". (s_extern): Remove.
This commit is contained in:
Ian Lance Taylor
parent
5d0e859038
commit
d7b2038fac
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@ -1,3 +1,20 @@
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Tue Oct 31 16:34:28 1995 David Mosberger-Tang <davidm@azstarnet.com>
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* configure.in (alpha-*-linux*): Use ecoff.
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* configure: Rebuild.
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* ecoff.c (ecoff_directive_extern): New function.
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(ecoff_directive_weakext): New function.
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(ecoff_build_symbols): Handle weak symbols.
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(ecoff_setup_ext): Likewise.
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* ecoff.h (ecoff_directive_extern): Declare.
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(ecoff_directive_weakext): Declare.
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* symbols.c (S_IS_WEAK): New function.
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* symbols.h (S_IS_WEAK): Declare.
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* config/obj-ecoff.c (obj_pseudo_table): Add "extern" and
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"weakext".
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* config/tc-mips.c (mips_pseudo_table): Remove "extern".
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(s_extern): Remove.
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Tue Oct 31 13:29:08 1995 Ian Lance Taylor <ian@cygnus.com>
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* config/tc-ppc.c (md_pseudo_table): Add "bc" and "ec".
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@ -12,7 +12,7 @@ ac_help=
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ac_default_prefix=/usr/local
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# Any additions from configure.in:
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ac_help="$ac_help
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bfd-assembler use BFD back end for writing object files"
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--enable-bfd-assembler use BFD back end for writing object files"
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ac_help="$ac_help
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targets alternative target configurations besides the primary"
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@ -659,6 +659,7 @@ for this_target in $target $canon_targets ; do
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alpha-*-netware*) fmt=ecoff ;;
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alpha-*-osf*) fmt=ecoff ;;
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alpha-*-linux*) fmt=ecoff ;;
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# start-sanitize-arc
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arc-*-elf*) fmt=elf bfd_gas=yes ;;
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@ -1244,7 +1245,7 @@ else
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# On the NeXT, cc -E runs the code through the compiler's parser,
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# not just through cpp.
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cat > conftest.$ac_ext <<EOF
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#line 1247 "configure"
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#line 1249 "configure"
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#include "confdefs.h"
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#include <assert.h>
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Syntax Error
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@ -1258,7 +1259,7 @@ else
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rm -rf conftest*
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CPP="${CC-cc} -E -traditional-cpp"
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cat > conftest.$ac_ext <<EOF
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#line 1261 "configure"
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#line 1263 "configure"
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#include "confdefs.h"
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#include <assert.h>
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Syntax Error
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@ -1291,7 +1292,7 @@ if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 1294 "configure"
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#line 1296 "configure"
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#include "confdefs.h"
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#include <$ac_hdr>
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EOF
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@ -1343,7 +1344,7 @@ else
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ac_cv_c_cross=yes
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else
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cat > conftest.$ac_ext <<EOF
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#line 1346 "configure"
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#line 1348 "configure"
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#include "confdefs.h"
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main(){return(0);}
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EOF
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@ -1366,7 +1367,7 @@ if eval "test \"`echo '$''{'ac_cv_header_alloca_h'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 1369 "configure"
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#line 1371 "configure"
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#include "confdefs.h"
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#include <alloca.h>
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int main() { return 0; }
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@ -1397,7 +1398,7 @@ if eval "test \"`echo '$''{'ac_cv_func_alloca'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 1400 "configure"
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#line 1402 "configure"
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#include "confdefs.h"
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#ifdef __GNUC__
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@ -1455,7 +1456,7 @@ if eval "test \"`echo '$''{'ac_cv_os_cray'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 1458 "configure"
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#line 1460 "configure"
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#include "confdefs.h"
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#if defined(CRAY) && ! defined(CRAY2)
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webecray
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@ -1483,7 +1484,7 @@ if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 1486 "configure"
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#line 1488 "configure"
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#include "confdefs.h"
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/* System header to define __stub macros and hopefully few prototypes,
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which can conflict with char $ac_func(); below. */
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@ -1537,7 +1538,7 @@ else
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ac_cv_c_stack_direction=0
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else
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cat > conftest.$ac_ext <<EOF
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#line 1540 "configure"
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#line 1542 "configure"
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#include "confdefs.h"
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find_stack_direction ()
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{
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@ -1579,7 +1580,7 @@ else
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ac_cv_c_inline=no
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for ac_kw in inline __inline__ __inline; do
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cat > conftest.$ac_ext <<EOF
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#line 1582 "configure"
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#line 1584 "configure"
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#include "confdefs.h"
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int main() { return 0; }
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@ -1618,7 +1619,7 @@ if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 1621 "configure"
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#line 1623 "configure"
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#include "confdefs.h"
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/* System header to define __stub macros and hopefully few prototypes,
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which can conflict with char $ac_func(); below. */
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@ -1671,7 +1672,7 @@ if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 1674 "configure"
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#line 1676 "configure"
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#include "confdefs.h"
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/* System header to define __stub macros and hopefully few prototypes,
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which can conflict with char $ac_func(); below. */
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@ -1724,7 +1725,7 @@ if eval "test \"`echo '$''{'gas_cv_assert_ok'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 1727 "configure"
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#line 1729 "configure"
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#include "confdefs.h"
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#include <assert.h>
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#include <stdio.h>
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@ -1781,7 +1782,7 @@ if eval "test \"`echo '$''{'gas_cv_decl_needed_malloc'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 1784 "configure"
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#line 1786 "configure"
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#include "confdefs.h"
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$gas_test_headers
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int main() { return 0; }
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@ -1817,7 +1818,7 @@ if eval "test \"`echo '$''{'gas_cv_decl_needed_free'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 1820 "configure"
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#line 1822 "configure"
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#include "confdefs.h"
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$gas_test_headers
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int main() { return 0; }
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@ -1856,7 +1857,7 @@ if eval "test \"`echo '$''{'gas_cv_decl_needed_errno'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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cat > conftest.$ac_ext <<EOF
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#line 1859 "configure"
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#line 1861 "configure"
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#include "confdefs.h"
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#ifdef HAVE_ERRNO_H
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@ -9,7 +9,7 @@ AC_INIT(as.h)dnl
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dnl
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user_bfd_gas=
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AC_ARG_ENABLE(bfd-assembler,
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[ bfd-assembler use BFD back end for writing object files],
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[ --enable-bfd-assembler use BFD back end for writing object files],
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[case "${enableval}" in
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yes) need_bfd=yes user_bfd_gas=yes ;;
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no) user_bfd_gas=no ;;
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@ -132,6 +132,7 @@ changequote([,])dnl
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alpha-*-netware*) fmt=ecoff ;;
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alpha-*-osf*) fmt=ecoff ;;
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alpha-*-linux*) fmt=ecoff ;;
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# start-sanitize-arc
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arc-*-elf*) fmt=elf bfd_gas=yes ;;
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@ -144,6 +145,7 @@ changequote([,])dnl
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*) targ=arm-lit ;;
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esac
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;;
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arm-*-coff) fmt=coff ;;
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arm-*-riscix*) fmt=aout ;;
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arm-*-pe) fmt=coff targ=armcoff em=pe ;;
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142
gas/ecoff.c
142
gas/ecoff.c
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@ -19,7 +19,7 @@
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "as.h"
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@ -936,6 +936,7 @@ typedef struct efdr {
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FDR fdr; /* File header to be written out */
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FDR *orig_fdr; /* original file header */
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char *name; /* filename */
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int fake; /* whether this is faked .file */
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symint_t void_type; /* aux. pointer to 'void' type */
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symint_t int_type; /* aux. pointer to 'int' type */
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scope_t *cur_scope; /* current nested scopes */
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@ -987,6 +988,7 @@ static const efdr_t init_file =
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(FDR *)0, /* orig_fdr: original file header pointer */
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(char *)0, /* name: pointer to filename */
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0, /* fake: whether this is a faked .file */
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0, /* void_type: ptr to aux node for void type */
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0, /* int_type: ptr to aux node for int type */
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(scope_t *)0, /* cur_scope: current scope being processed */
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@ -1435,7 +1437,7 @@ static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
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bt_t basic_type));
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static void add_unknown_tag PARAMS ((tag_t *ptag));
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static void add_procedure PARAMS ((char *func));
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static void add_file PARAMS ((const char *file_name, int indx));
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static void add_file PARAMS ((const char *file_name, int indx, int fake));
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#ifdef ECOFF_DEBUG
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static char *sc_to_string PARAMS ((sc_t storage_class));
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static char *st_to_string PARAMS ((st_t symbol_type));
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@ -1509,7 +1511,7 @@ ecoff_symbol_new_hook (symbolP)
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wrong. */
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if (cur_file_ptr == (efdr_t *) NULL
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&& seen_at_least_1_file ())
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add_file ((const char *) NULL, 0);
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add_file ((const char *) NULL, 0, 1);
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symbolP->ecoff_file = cur_file_ptr;
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symbolP->ecoff_symbol = NULL;
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symbolP->ecoff_extern_size = 0;
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@ -2178,9 +2180,10 @@ add_procedure (func)
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where the current file structure lives. */
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static void
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add_file (file_name, indx)
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add_file (file_name, indx, fake)
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const char *file_name; /* file name */
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int indx;
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int fake;
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{
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register int first_ch;
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register efdr_t *fil_ptr;
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@ -2228,6 +2231,19 @@ add_file (file_name, indx)
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first_ch = *file_name;
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/* ??? This is ifdefed out, because it results in incorrect line number
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debugging info when multiple .file pseudo-ops are merged into one file
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descriptor. See for instance ecoff_build_lineno, which will
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end up setting all file->fdr.* fields multiple times, resulting in
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incorrect debug info. In order to make this work right, all line number
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and symbol info for the same source file has to be adjacent in the object
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file, so that a single file descriptor can be used to point to them.
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This would require maintaining file specific lists of line numbers and
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symbols for each file, so that they can be merged together (or output
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together) when two .file pseudo-ops are merged into one file
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descriptor. */
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#if 0
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/* See if the file has already been created. */
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for (fil_ptr = first_file;
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fil_ptr != (efdr_t *) NULL;
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@ -2237,9 +2253,14 @@ add_file (file_name, indx)
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&& strcmp (file_name, fil_ptr->name) == 0)
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{
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cur_file_ptr = fil_ptr;
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if (! fake)
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cur_file_ptr->fake = 0;
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break;
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}
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}
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#else
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fil_ptr = (efdr_t *) NULL;
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#endif
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/* If this is a new file, create it. */
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if (fil_ptr == (efdr_t *) NULL)
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@ -2254,6 +2275,8 @@ add_file (file_name, indx)
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fil_ptr->file_index = current_file_idx++;
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++file_desc.num_allocated;
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fil_ptr->fake = fake;
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/* Allocate the string hash table. */
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fil_ptr->str_hash = hash_new ();
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@ -3047,7 +3070,7 @@ ecoff_directive_ent (ignore)
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register int ch;
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if (cur_file_ptr == (efdr_t *) NULL)
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add_file ((const char *) NULL, 0);
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add_file ((const char *) NULL, 0, 1);
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if (cur_proc_ptr != (proc_t *) NULL)
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{
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@ -3088,6 +3111,31 @@ ecoff_directive_ent (ignore)
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demand_empty_rest_of_line ();
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}
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|
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/* Parse .extern directives. */
|
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void
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ecoff_directive_extern (ignore)
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int ignore;
|
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{
|
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char *name;
|
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int c;
|
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symbolS *symbolp;
|
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valueT size;
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|
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name = input_line_pointer;
|
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c = get_symbol_end ();
|
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symbolp = symbol_find_or_make (name);
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*input_line_pointer = c;
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|
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S_SET_EXTERNAL (symbolp);
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|
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if (*input_line_pointer == ',')
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++input_line_pointer;
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size = get_absolute_expression ();
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symbolp->ecoff_extern_size = size;
|
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}
|
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|
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/* Parse .file directives. */
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|
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void
|
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|
|
@ -3110,7 +3158,7 @@ ecoff_directive_file (ignore)
|
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/* FIXME: we don't have to save the name here. */
|
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name = demand_copy_C_string (&len);
|
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|
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add_file (name, indx - 1);
|
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add_file (name, indx - 1, 0);
|
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|
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demand_empty_rest_of_line ();
|
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}
|
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|
|
@ -3304,6 +3352,54 @@ mark_stabs (ignore)
|
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}
|
||||
}
|
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|
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/* Parse .weakext directives. */
|
||||
|
||||
void
|
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ecoff_directive_weakext (ignore)
|
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int ignore;
|
||||
{
|
||||
char *name;
|
||||
int c;
|
||||
symbolS *symbolP;
|
||||
expressionS exp;
|
||||
|
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name = input_line_pointer;
|
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c = get_symbol_end ();
|
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symbolP = symbol_find_or_make (name);
|
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*input_line_pointer = c;
|
||||
|
||||
SKIP_WHITESPACE ();
|
||||
|
||||
if (c == ',')
|
||||
{
|
||||
if (S_IS_DEFINED (symbolP))
|
||||
{
|
||||
as_bad ("Ignoring attempt to redefine symbol `%s'.",
|
||||
S_GET_NAME (symbolP));
|
||||
ignore_rest_of_line ();
|
||||
return;
|
||||
}
|
||||
|
||||
++input_line_pointer;
|
||||
SKIP_WHITESPACE ();
|
||||
if (! is_end_of_line[(unsigned char) *input_line_pointer])
|
||||
{
|
||||
expression (&exp);
|
||||
if (exp.X_op != O_symbol)
|
||||
{
|
||||
as_bad ("bad .weakext directive");
|
||||
ignore_rest_of_line();
|
||||
return;
|
||||
}
|
||||
symbolP->sy_value = exp;
|
||||
}
|
||||
}
|
||||
|
||||
S_SET_WEAK (symbolP);
|
||||
|
||||
demand_empty_rest_of_line ();
|
||||
}
|
||||
|
||||
/* Handle .stabs directives. The actual parsing routine is done by a
|
||||
generic routine. This routine is called via OBJ_PROCESS_STAB.
|
||||
When this is called, input_line_pointer will be pointing at the
|
||||
|
|
@ -3373,7 +3469,7 @@ ecoff_stab (sec, what, string, type, other, desc)
|
|||
/* Make sure we have a current file. */
|
||||
if (cur_file_ptr == (efdr_t *) NULL)
|
||||
{
|
||||
add_file ((const char *) NULL, 0);
|
||||
add_file ((const char *) NULL, 0, 1);
|
||||
save_file_ptr = cur_file_ptr;
|
||||
}
|
||||
|
||||
|
|
@ -3653,8 +3749,6 @@ ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
|
|||
if (l->file != file && file != (efdr_t *) NULL)
|
||||
{
|
||||
file->fdr.cbLine = c - file->fdr.cbLineOffset;
|
||||
/* The cline field is ill-documented. This is a guess
|
||||
at the right value. */
|
||||
file->fdr.cline = totcount + count;
|
||||
if (linecntptr != (long *) NULL)
|
||||
*linecntptr += totcount + count;
|
||||
|
|
@ -3663,8 +3757,14 @@ ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
|
|||
|
||||
if (l->file != file)
|
||||
{
|
||||
efdr_t *last_file = file;
|
||||
|
||||
file = l->file;
|
||||
file->fdr.ilineBase = iline;
|
||||
if (last_file != (efdr_t *) NULL)
|
||||
file->fdr.ilineBase
|
||||
= last_file->fdr.ilineBase + last_file->fdr.cline;
|
||||
else
|
||||
file->fdr.ilineBase = 0;
|
||||
file->fdr.cbLineOffset = c;
|
||||
}
|
||||
if (l->proc != proc)
|
||||
|
|
@ -3674,8 +3774,6 @@ ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
|
|||
{
|
||||
proc->pdr.lnLow = l->lineno;
|
||||
proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
|
||||
/* The iline field is ill-documented. This is a
|
||||
guess at the right value. */
|
||||
proc->pdr.iline = totcount;
|
||||
}
|
||||
}
|
||||
|
|
@ -3888,11 +3986,14 @@ ecoff_build_symbols (backend, buf, bufend, offset)
|
|||
+ bfd_get_section_vma (stdoutput,
|
||||
S_GET_SEGMENT (as_sym)));
|
||||
|
||||
sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym);
|
||||
|
||||
/* Set st_Proc to st_StaticProc for local
|
||||
functions. */
|
||||
if (sym_ptr->ecoff_sym.asym.st == st_Proc
|
||||
&& S_IS_DEFINED (as_sym)
|
||||
&& ! S_IS_EXTERNAL (as_sym))
|
||||
&& ! S_IS_EXTERNAL (as_sym)
|
||||
&& ! S_IS_WEAK (as_sym))
|
||||
sym_ptr->ecoff_sym.asym.st = st_StaticProc;
|
||||
|
||||
/* Get the type and storage class based on where
|
||||
|
|
@ -3915,6 +4016,7 @@ ecoff_build_symbols (backend, buf, bufend, offset)
|
|||
|
||||
if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
|
||||
&& (S_IS_EXTERNAL (as_sym)
|
||||
|| S_IS_WEAK (as_sym)
|
||||
|| ! S_IS_DEFINED (as_sym)))
|
||||
{
|
||||
if ((as_sym->bsym->flags & BSF_FUNCTION) != 0)
|
||||
|
|
@ -3983,6 +4085,7 @@ ecoff_build_symbols (backend, buf, bufend, offset)
|
|||
than the actual symbol. Should we handle
|
||||
them here? */
|
||||
if ((S_IS_EXTERNAL (as_sym)
|
||||
|| S_IS_WEAK (as_sym)
|
||||
|| ! S_IS_DEFINED (as_sym))
|
||||
&& sym_ptr->proc_ptr == (proc_t *) NULL
|
||||
&& sym_ptr->ecoff_sym.asym.st != (int) st_Nil
|
||||
|
|
@ -4473,6 +4576,7 @@ ecoff_setup_ext ()
|
|||
|
||||
/* If this is a local symbol, then force the fields to zero. */
|
||||
if (! S_IS_EXTERNAL (sym)
|
||||
&& ! S_IS_WEAK (sym)
|
||||
&& S_IS_DEFINED (sym))
|
||||
{
|
||||
sym->ecoff_symbol->ecoff_sym.asym.value = 0;
|
||||
|
|
@ -4485,7 +4589,7 @@ ecoff_setup_ext ()
|
|||
}
|
||||
}
|
||||
|
||||
/* Build the ECOFF dbeugging information. */
|
||||
/* Build the ECOFF debugging information. */
|
||||
|
||||
unsigned long
|
||||
ecoff_build_debug (hdr, bufp, backend)
|
||||
|
|
@ -4507,7 +4611,7 @@ ecoff_build_debug (hdr, bufp, backend)
|
|||
|
||||
/* Make sure we have a file. */
|
||||
if (first_file == (efdr_t *) NULL)
|
||||
add_file ((const char *) NULL, 0);
|
||||
add_file ((const char *) NULL, 0, 1);
|
||||
|
||||
/* Handle any top level tags. */
|
||||
for (ptag = top_tag_head->first_tag;
|
||||
|
|
@ -4556,7 +4660,7 @@ ecoff_build_debug (hdr, bufp, backend)
|
|||
&& cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
|
||||
{
|
||||
cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
|
||||
if (! end_warning)
|
||||
if (! end_warning && ! cur_file_ptr->fake)
|
||||
{
|
||||
as_warn ("Missing .end or .bend at end of file");
|
||||
end_warning = 1;
|
||||
|
|
@ -5085,7 +5189,7 @@ generate_ecoff_stab (what, string, type, other, desc)
|
|||
/* Make sure we have a current file. */
|
||||
if (cur_file_ptr == (efdr_t *) NULL)
|
||||
{
|
||||
add_file ((const char *) NULL, 0);
|
||||
add_file ((const char *) NULL, 0, 1);
|
||||
save_file_ptr = cur_file_ptr;
|
||||
}
|
||||
|
||||
|
|
@ -5174,7 +5278,7 @@ ecoff_generate_asm_lineno (filename, lineno)
|
|||
|
||||
if (current_stabs_filename == (char *)NULL || strcmp (current_stabs_filename, filename))
|
||||
{
|
||||
add_file (filename, 0);
|
||||
add_file (filename, 0, 1);
|
||||
generate_asm_lineno = 1;
|
||||
}
|
||||
|
||||
|
|
@ -5216,7 +5320,7 @@ ecoff_generate_asm_line_stab (filename, lineno)
|
|||
|
||||
if (strcmp (current_stabs_filename, filename))
|
||||
{
|
||||
add_file (filename, 0);
|
||||
add_file (filename, 0, 1);
|
||||
generate_asm_lineno = 1;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue