configure.in (HAVE_SPARC_UA_PCREL_HIDDEN): Test whether %r_disp32() works properly with .hidden symbols.
* configure.in (HAVE_SPARC_UA_PCREL_HIDDEN): Test whether %r_disp32() works properly with .hidden symbols. * configure: Rebuilt. * config.in: Rebuilt. * config/sparc/sparc.h (ASM_PREFERRED_EH_DATA_FORMAT): Use DW_EH_PE_absptr for flag_pic && GLOBAL if %r_disp32() doesn't work properly with .hidden symbols. From-SVN: r51816
This commit is contained in:
Jakub Jelinek
Jakub Jelinek
parent
9d7013b8ac
commit
cf7b8b0dc4
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@ -1,3 +1,13 @@
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2002-04-03 Jakub Jelinek <jakub@redhat.com>
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* configure.in (HAVE_SPARC_UA_PCREL_HIDDEN): Test whether %r_disp32()
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works properly with .hidden symbols.
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* configure: Rebuilt.
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* config.in: Rebuilt.
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* config/sparc/sparc.h (ASM_PREFERRED_EH_DATA_FORMAT): Use
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DW_EH_PE_absptr for flag_pic && GLOBAL if %r_disp32() doesn't work
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properly with .hidden symbols.
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2002-04-03 Jakub Jelinek <jakub@redhat.com>
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PR middle-end/6102
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@ -529,6 +529,9 @@
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/* Define if your assembler and linker support unaligned PC relative relocs. */
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#undef HAVE_AS_SPARC_UA_PCREL
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/* Define if your assembler and linker support unaligned PC relative relocs against hidden symbols. */
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#undef HAVE_AS_SPARC_UA_PCREL_HIDDEN
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/* Define if the assembler supports 64bit sparc. */
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#undef AS_SPARC64_FLAG
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@ -1955,14 +1955,27 @@ do { \
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If assembler and linker properly support .uaword %r_disp32(foo),
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then use PC relative 32-bit relocations instead of absolute relocs
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for shared libraries. On sparc64, use pc relative 32-bit relocs even
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for binaries, to save memory. */
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for binaries, to save memory.
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binutils 2.12 would emit a R_SPARC_DISP32 dynamic relocation if the
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symbol %r_disp32() is against was not local, but .hidden. In that
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case, we have to use DW_EH_PE_absptr for pic personality. */
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#ifdef HAVE_AS_SPARC_UA_PCREL
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#ifdef HAVE_AS_SPARC_UA_PCREL_HIDDEN
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#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
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(flag_pic \
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? (GLOBAL ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4\
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: ((TARGET_ARCH64 && ! GLOBAL) \
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? (DW_EH_PE_pcrel | DW_EH_PE_sdata4) \
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: DW_EH_PE_absptr))
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#else
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#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
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(flag_pic \
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? (GLOBAL ? DW_EH_PE_absptr : (DW_EH_PE_pcrel | DW_EH_PE_sdata4)) \
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: ((TARGET_ARCH64 && ! GLOBAL) \
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? (DW_EH_PE_pcrel | DW_EH_PE_sdata4) \
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: DW_EH_PE_absptr))
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#endif
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/* Emit a PC-relative relocation. */
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#define ASM_OUTPUT_DWARF_PCREL(FILE, SIZE, LABEL) \
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@ -7462,10 +7462,9 @@ else
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if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
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gcc_cv_as_sparc_ua_pcrel=no
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echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
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if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1; then
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if $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
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gcc_cv_as_sparc_ua_pcrel=yes
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fi
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if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
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&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
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gcc_cv_as_sparc_ua_pcrel=yes
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fi
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rm -f conftest.s conftest.o conftest
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fi
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@ -7480,6 +7479,46 @@ EOF
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fi
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echo $ac_n "checking assembler and linker support unaligned pc related relocs against hidden symbols""... $ac_c" 1>&6
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echo "configure:7430: checking assembler and linker support unaligned pc related relocs against hidden symbols" >&5
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if eval "test \"`echo '$''{'gcc_cv_as_sparc_ua_pcrel_hidden'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&6
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else
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if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
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gcc_cv_as_sparc_ua_pcrel_hidden=unknown
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if test x$gcc_cv_objdump != x; then
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gcc_cv_as_sparc_ua_pcrel_hidden=no
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echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
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echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
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echo "foo: .skip 4" >> conftest.s
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if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
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&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
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&& $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
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| grep ' 31000000 07323334' > /dev/null 2>&1; then
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if $gcc_cv_objdump -R conftest 2> /dev/null \
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| grep 'DISP32' > /dev/null 2>&1; then
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:
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else
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gcc_cv_as_sparc_ua_pcrel_hidden=yes
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fi
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fi
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fi
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rm -f conftest.s conftest.o conftest
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else
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gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
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fi
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fi
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echo "$ac_t""$gcc_cv_as_sparc_ua_pcrel_hidden" 1>&6
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if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
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cat >> confdefs.h <<\EOF
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#define HAVE_AS_SPARC_UA_PCREL_HIDDEN 1
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EOF
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fi
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case "$tm_file" in
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*64*)
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echo $ac_n "checking for 64 bit support in assembler ($gcc_cv_as)""... $ac_c" 1>&6
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@ -1755,10 +1755,9 @@ EOF
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if test x$gcc_cv_as != x -a x$gcc_cv_ld != x; then
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gcc_cv_as_sparc_ua_pcrel=no
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echo ".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo)" > conftest.s
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if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1; then
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if $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
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gcc_cv_as_sparc_ua_pcrel=yes
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fi
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if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
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&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
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gcc_cv_as_sparc_ua_pcrel=yes
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fi
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rm -f conftest.s conftest.o conftest
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fi
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@ -1768,6 +1767,37 @@ EOF
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[Define if your assembler and linker support unaligned PC relative relocs.])
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fi
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AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs against hidden symbols],
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gcc_cv_as_sparc_ua_pcrel_hidden, [
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if test "x$gcc_cv_as_sparc_ua_pcrel" = xyes; then
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gcc_cv_as_sparc_ua_pcrel_hidden=unknown
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if test x$gcc_cv_objdump != x; then
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gcc_cv_as_sparc_ua_pcrel_hidden=no
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echo ".data; .align 4; .byte 0x31; .uaword %r_disp32(foo)" > conftest.s
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echo ".byte 0x32, 0x33, 0x34; .global foo; .hidden foo" >> conftest.s
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echo "foo: .skip 4" >> conftest.s
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if $gcc_cv_as -K PIC -o conftest.o conftest.s > /dev/null 2>&1 \
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&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
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&& $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
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| grep ' 31000000 07323334' > /dev/null 2>&1; then
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if $gcc_cv_objdump -R conftest 2> /dev/null \
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| grep 'DISP32' > /dev/null 2>&1; then
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:
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else
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gcc_cv_as_sparc_ua_pcrel_hidden=yes
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fi
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fi
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fi
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rm -f conftest.s conftest.o conftest
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else
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gcc_cv_as_sparc_ua_pcrel_hidden="$gcc_cv_as_sparc_ua_pcrel"
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fi
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])
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if test "x$gcc_cv_as_sparc_ua_pcrel_hidden" = xyes; then
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AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
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[Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])
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fi
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case "$tm_file" in
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*64*)
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AC_CACHE_CHECK([for 64 bit support in assembler ($gcc_cv_as)],
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