diff options
Diffstat (limited to 'gcc/configure')
| -rwxr-xr-x | gcc/configure | 54 |
1 files changed, 49 insertions, 5 deletions
diff --git a/gcc/configure b/gcc/configure index dd9509c89de..2b93377595b 100755 --- a/gcc/configure +++ b/gcc/configure @@ -5851,7 +5851,7 @@ echo "$ac_t""$gcc_cv_nm" 1>&6 # Figure out what assembler alignment features are present. echo $ac_n "checking assembler alignment features""... $ac_c" 1>&6 echo "configure:5854: checking assembler alignment features" >&5 -gcc_cv_as_alignment_features= +gcc_cv_as_alignment_features=none if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then # Gas version 2.6 and later support for .balign and .p2align. # bytes to skip when using .p2align. @@ -5899,7 +5899,7 @@ echo "$ac_t""$gcc_cv_as_alignment_features" 1>&6 echo $ac_n "checking assembler subsection support""... $ac_c" 1>&6 echo "configure:5902: checking assembler subsection support" >&5 -gcc_cv_as_subsections= +gcc_cv_as_subsections=no if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 9 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then gcc_cv_as_subsections="working .subsection -1" @@ -5939,7 +5939,7 @@ echo "$ac_t""$gcc_cv_as_subsections" 1>&6 echo $ac_n "checking assembler weak support""... $ac_c" 1>&6 echo "configure:5942: checking assembler weak support" >&5 -gcc_cv_as_weak= +gcc_cv_as_weak=no if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 2 -o "$gcc_cv_gas_major_version" -gt 2; then gcc_cv_as_weak="yes" @@ -5962,7 +5962,7 @@ echo "$ac_t""$gcc_cv_as_weak" 1>&6 echo $ac_n "checking assembler hidden support""... $ac_c" 1>&6 echo "configure:5965: checking assembler hidden support" >&5 -gcc_cv_as_hidden= +gcc_cv_as_hidden=no if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then if test "$gcc_cv_gas_major_version" -eq 2 -a "$gcc_cv_gas_minor_version" -ge 10 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then gcc_cv_as_hidden="yes" @@ -6157,6 +6157,50 @@ EOF ;; esac +echo $ac_n "checking assembler dwarf2 debug_line support""... $ac_c" 1>&6 +echo "configure:6162: checking assembler dwarf2 debug_line support" >&5 +gcc_cv_as_dwarf2_debug_line=no +# ??? Not all targets support dwarf2 debug_line, even within a version +# of gas. Moreover, we need to emit a valid instruction to trigger any +# info to the output file. So, as supported targets are added to gas 2.11, +# add some instruction here to (also) show we expect this might work. +# ??? Once 2.11 is released, probably need to add first known working +# version to the per-target configury. +case "$target" in + i?86*-*-* | mips*-*-* | alpha*-*-*) + insn="nop" + ;; + ia64*-*-*) + insn="nop 0" + ;; + esac +if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; +then + if test "$gcc_cv_gas_major_version" -eq 2 \ + -a "$gcc_cv_gas_minor_version" -ge 11 \ + -o "$gcc_cv_gas_major_version" -gt 2 \ + && grep 'obj_format = elf' ../gas/Makefile > /dev/null \ + && test x"$insn" != x ; then + gcc_cv_as_dwarf2_debug_line="yes" + fi +elif test x$gcc_cv_as != x -a x"$insn" != x ; then + echo ' .file 0 "conftest.s"' > conftest.s + echo ' .loc 0 3 0' >> conftest.s + echo " $insn" >> conftest.s + if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \ + && grep debug_line conftest.o > /dev/null 2>&1 ; then + gcc_cv_as_dwarf2_debug_line="yes" + fi + rm -f conftest.s conftest.o conftest.nm1 conftest.nm2 +fi +if test x"$gcc_cv_as_dwarf2_debug_line" = xyes; then + cat >> confdefs.h <<\EOF +#define HAVE_AS_DWARF2_DEBUG_LINE 1 +EOF + +fi +echo "$ac_t""$gcc_cv_as_dwarf2_debug_line" 1>&6 + # Figure out what language subdirectories are present. # Look if the user specified --enable-languages="..."; if not, use # the environment variable $LANGUAGES if defined. $LANGUAGES might @@ -6285,7 +6329,7 @@ EOF echo $ac_n "checking whether to enable maintainer-specific portions of Makefiles""... $ac_c" 1>&6 -echo "configure:6289: checking whether to enable maintainer-specific portions of Makefiles" >&5 +echo "configure:6333: checking whether to enable maintainer-specific portions of Makefiles" >&5 # Check whether --enable-maintainer-mode or --disable-maintainer-mode was given. if test "${enable_maintainer_mode+set}" = set; then enableval="$enable_maintainer_mode" |