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riscv-gcc-1
Commit c64688ae by Richard Henderson Committed by Richard Henderson
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configure.in (gcc_cv_as_eh_frame): New test. 

        * configure.in (gcc_cv_as_eh_frame): New test.
        * config.in, configure: Rebuild.
        * gcc.c (init_spec): Honor USE_AS_TRADITIONAL_FORMAT.

From-SVN: r42092
parent e8b073c1
Showing with 171 additions and 8 deletions
gcc/ChangeLog
2001-05-14 Richard Henderson <rth@redhat.com>
* configure.in (gcc_cv_as_eh_frame): New test.
* config.in, configure: Rebuild.
* gcc.c (init_spec): Honor USE_AS_TRADITIONAL_FORMAT.
2001-05-14 Andrew MacLeod <amacleod@redhat.com> 2001-05-14 Andrew MacLeod <amacleod@redhat.com>
* config/ia64/lib1funcs.asm (__divtf3): Fix incorrect bits in * config/ia64/lib1funcs.asm (__divtf3): Fix incorrect bits in
......
gcc/config.in
...@@ -469,6 +469,9 @@ ...@@ -469,6 +469,9 @@
/* Define if your assembler supports .uleb128. */ /* Define if your assembler supports .uleb128. */
#undef HAVE_AS_LEB128 #undef HAVE_AS_LEB128
/* Define if your assembler mis-optimizes .eh_frame data. */
#undef USE_AS_TRADITIONAL_FORMAT
/* Define if your assembler supports .register. */ /* Define if your assembler supports .register. */
#undef HAVE_AS_REGISTER_PSEUDO_OP #undef HAVE_AS_REGISTER_PSEUDO_OP
......
gcc/configure
...@@ -2018,7 +2018,7 @@ EOF ...@@ -2018,7 +2018,7 @@ EOF
fi fi
# Find some useful tools # Find some useful tools
for ac_prog in mawk gawk nawk awk for ac_prog in gawk mawk nawk awk
do do
# Extract the first word of "$ac_prog", so it can be a program name with args. # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2 set dummy $ac_prog; ac_word=$2
...@@ -6888,10 +6888,84 @@ EOF ...@@ -6888,10 +6888,84 @@ EOF
fi fi
echo "$ac_t""$gcc_cv_as_leb128" 1>&6 echo "$ac_t""$gcc_cv_as_leb128" 1>&6
echo $ac_n "checking assembler eh_frame optimization""... $ac_c" 1>&6
echo "configure:6893: checking assembler eh_frame optimization" >&5
gcc_cv_as_eh_frame=no
if test x$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 "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
gcc_cv_as_eh_frame="yes"
fi
elif test x$gcc_cv_as != x; then
# Check if this is GAS.
as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
if echo "$as_ver" | grep GNU > /dev/null; then
# Versions up to and including 2.11.0 may mis-optimize
# .eh_frame data. Try something.
cat > conftest.s <<EOF
.text
.LFB1:
.4byte 0
.L1:
.4byte 0
.LFE1:
.section .eh_frame,"aw",@progbits
__FRAME_BEGIN__:
.4byte .LECIE1-.LSCIE1
.LSCIE1:
.4byte 0x0
.byte 0x1
.ascii "z\0"
.byte 0x1
.byte 0x78
.byte 0x1a
.byte 0x0
.byte 0x4
.4byte 1
.p2align 1
.LECIE1:
.LSFDE1:
.4byte .LEFDE1-.LASFDE1
.LASFDE1:
.4byte .LASFDE1-__FRAME_BEGIN__
.4byte .LFB1
.4byte .LFE1-.LFB1
.byte 0x4
.4byte .LFE1-.LFB1
.byte 0x4
.4byte .L1-.LFB1
.LEFDE1:
EOF
cat > conftest.exp <<EOF
0000 10000000 00000000 017a0001 781a0004 .........z..x...
0010 01000000 12000000 18000000 00000000 ................
0020 08000000 04080000 0044 .........D
EOF
# If the assembler didn't choke, and we can objdump,
# and we got the correct data, then succeed.
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
&& objdump -s -j .eh_frame conftest.o 2>/dev/null \
| tail -3 > conftest.got \
&& cmp conftest.exp conftest.got > /dev/null 2>&1
then
gcc_cv_as_eh_frame="yes"
else
gcc_cv_as_eh_frame="bad"
if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
cat >> confdefs.h <<\EOF
#define USE_AS_TRADITIONAL_FORMAT 1
EOF
fi
fi
fi
rm -f conftest.*
fi
echo "$ac_t""$gcc_cv_as_eh_frame" 1>&6
case "$target" in case "$target" in
sparc*-*-*) sparc*-*-*)
echo $ac_n "checking assembler .register pseudo-op support""... $ac_c" 1>&6 echo $ac_n "checking assembler .register pseudo-op support""... $ac_c" 1>&6
echo "configure:6895: checking assembler .register pseudo-op support" >&5 echo "configure:6969: checking assembler .register pseudo-op support" >&5
if eval "test \"`echo '$''{'gcc_cv_as_register_pseudo_op'+set}'`\" = set"; then if eval "test \"`echo '$''{'gcc_cv_as_register_pseudo_op'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6 echo $ac_n "(cached) $ac_c" 1>&6
else else
...@@ -6919,7 +6993,7 @@ EOF ...@@ -6919,7 +6993,7 @@ EOF
fi fi
echo $ac_n "checking assembler supports -relax""... $ac_c" 1>&6 echo $ac_n "checking assembler supports -relax""... $ac_c" 1>&6
echo "configure:6923: checking assembler supports -relax" >&5 echo "configure:6997: checking assembler supports -relax" >&5
if eval "test \"`echo '$''{'gcc_cv_as_relax_opt'+set}'`\" = set"; then if eval "test \"`echo '$''{'gcc_cv_as_relax_opt'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6 echo $ac_n "(cached) $ac_c" 1>&6
else else
...@@ -6949,7 +7023,7 @@ EOF ...@@ -6949,7 +7023,7 @@ EOF
case "$tm_file" in case "$tm_file" in
*64*) *64*)
echo $ac_n "checking for 64 bit support in assembler ($gcc_cv_as)""... $ac_c" 1>&6 echo $ac_n "checking for 64 bit support in assembler ($gcc_cv_as)""... $ac_c" 1>&6
echo "configure:6953: checking for 64 bit support in assembler ($gcc_cv_as)" >&5 echo "configure:7027: checking for 64 bit support in assembler ($gcc_cv_as)" >&5
if eval "test \"`echo '$''{'gcc_cv_as_flags64'+set}'`\" = set"; then if eval "test \"`echo '$''{'gcc_cv_as_flags64'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6 echo $ac_n "(cached) $ac_c" 1>&6
else else
...@@ -6994,7 +7068,7 @@ EOF ...@@ -6994,7 +7068,7 @@ EOF
if test "x$gcc_cv_as_flags64" != xno; then if test "x$gcc_cv_as_flags64" != xno; then
echo $ac_n "checking for assembler offsetable %lo() support""... $ac_c" 1>&6 echo $ac_n "checking for assembler offsetable %lo() support""... $ac_c" 1>&6
echo "configure:6998: checking for assembler offsetable %lo() support" >&5 echo "configure:7072: checking for assembler offsetable %lo() support" >&5
if eval "test \"`echo '$''{'gcc_cv_as_offsetable_lo10'+set}'`\" = set"; then if eval "test \"`echo '$''{'gcc_cv_as_offsetable_lo10'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6 echo $ac_n "(cached) $ac_c" 1>&6
else else
...@@ -7033,7 +7107,7 @@ EOF ...@@ -7033,7 +7107,7 @@ EOF
i[34567]86-*-*) i[34567]86-*-*)
echo $ac_n "checking assembler instructions""... $ac_c" 1>&6 echo $ac_n "checking assembler instructions""... $ac_c" 1>&6
echo "configure:7037: checking assembler instructions" >&5 echo "configure:7111: checking assembler instructions" >&5
gcc_cv_as_instructions= gcc_cv_as_instructions=
if test x$gcc_cv_gas_major_version != x -a x$gcc_cv_gas_minor_version != x; then if test x$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; 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; then
...@@ -7062,7 +7136,7 @@ EOF ...@@ -7062,7 +7136,7 @@ EOF
esac esac
echo $ac_n "checking assembler dwarf2 debug_line support""... $ac_c" 1>&6 echo $ac_n "checking assembler dwarf2 debug_line support""... $ac_c" 1>&6
echo "configure:7066: checking assembler dwarf2 debug_line support" >&5 echo "configure:7140: checking assembler dwarf2 debug_line support" >&5
gcc_cv_as_dwarf2_debug_line=no gcc_cv_as_dwarf2_debug_line=no
# ??? Not all targets support dwarf2 debug_line, even within a version # ??? Not all targets support dwarf2 debug_line, even within a version
# of gas. Moreover, we need to emit a valid instruction to trigger any # of gas. Moreover, we need to emit a valid instruction to trigger any
...@@ -7247,7 +7321,7 @@ fi ...@@ -7247,7 +7321,7 @@ fi
echo $ac_n "checking whether to enable maintainer-specific portions of Makefiles""... $ac_c" 1>&6 echo $ac_n "checking whether to enable maintainer-specific portions of Makefiles""... $ac_c" 1>&6
echo "configure:7251: checking whether to enable maintainer-specific portions of Makefiles" >&5 echo "configure:7325: checking whether to enable maintainer-specific portions of Makefiles" >&5
# Check whether --enable-maintainer-mode or --disable-maintainer-mode was given. # Check whether --enable-maintainer-mode or --disable-maintainer-mode was given.
if test "${enable_maintainer_mode+set}" = set; then if test "${enable_maintainer_mode+set}" = set; then
enableval="$enable_maintainer_mode" enableval="$enable_maintainer_mode"
......
gcc/configure.in
...@@ -1410,6 +1410,77 @@ if test x"$gcc_cv_as_leb128" = xyes; then ...@@ -1410,6 +1410,77 @@ if test x"$gcc_cv_as_leb128" = xyes; then
fi fi
AC_MSG_RESULT($gcc_cv_as_leb128) AC_MSG_RESULT($gcc_cv_as_leb128)
AC_MSG_CHECKING(assembler eh_frame optimization)
gcc_cv_as_eh_frame=no
if test x$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 "$gcc_cv_gas_minor_version" -ge 12 -o "$gcc_cv_gas_major_version" -gt 2 && grep 'obj_format = elf' ../gas/Makefile > /dev/null; then
gcc_cv_as_eh_frame="yes"
fi
elif test x$gcc_cv_as != x; then
# Check if this is GAS.
as_ver=`$gcc_cv_as --version 2>/dev/null | head -1`
if echo "$as_ver" | grep GNU > /dev/null; then
# Versions up to and including 2.11.0 may mis-optimize
# .eh_frame data. Try something.
cat > conftest.s <<EOF
.text
.LFB1:
.4byte 0
.L1:
.4byte 0
.LFE1:
.section .eh_frame,"aw",@progbits
__FRAME_BEGIN__:
.4byte .LECIE1-.LSCIE1
.LSCIE1:
.4byte 0x0
.byte 0x1
.ascii "z\0"
.byte 0x1
.byte 0x78
.byte 0x1a
.byte 0x0
.byte 0x4
.4byte 1
.p2align 1
.LECIE1:
.LSFDE1:
.4byte .LEFDE1-.LASFDE1
.LASFDE1:
.4byte .LASFDE1-__FRAME_BEGIN__
.4byte .LFB1
.4byte .LFE1-.LFB1
.byte 0x4
.4byte .LFE1-.LFB1
.byte 0x4
.4byte .L1-.LFB1
.LEFDE1:
EOF
cat > conftest.exp <<EOF
0000 10000000 00000000 017a0001 781a0004 .........z..x...
0010 01000000 12000000 18000000 00000000 ................
0020 08000000 04080000 0044 .........D
EOF
# If the assembler didn't choke, and we can objdump,
# and we got the correct data, then succeed.
if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
&& objdump -s -j .eh_frame conftest.o 2>/dev/null \
| tail -3 > conftest.got \
&& cmp conftest.exp conftest.got > /dev/null 2>&1
then
gcc_cv_as_eh_frame="yes"
else
gcc_cv_as_eh_frame="bad"
if $gcc_cv_as -o conftest.o --traditional-format /dev/null; then
AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
[Define if your assembler mis-optimizes .eh_frame data.])
fi
fi
fi
rm -f conftest.*
fi
AC_MSG_RESULT($gcc_cv_as_eh_frame)
case "$target" in case "$target" in
sparc*-*-*) sparc*-*-*)
AC_CACHE_CHECK([assembler .register pseudo-op support], AC_CACHE_CHECK([assembler .register pseudo-op support],
......
gcc/gcc.c
...@@ -1454,6 +1454,15 @@ init_spec () ...@@ -1454,6 +1454,15 @@ init_spec ()
libgcc_spec = obstack_finish (&obstack); libgcc_spec = obstack_finish (&obstack);
} }
#endif #endif
#ifdef USE_AS_TRADITIONAL_FORMAT
/* Prepend "--traditional-format" to whatever asm_spec we had before. */
{
static char tf[] = "--traditional-format ";
obstack_grow (&obstack, tf, sizeof(tf) - 1);
obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
asm_spec = obstack_finish (&obstack);
}
#endif
specs = sl; specs = sl;
} }
......
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