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43 lines
1.3 KiB
Plaintext
43 lines
1.3 KiB
Plaintext
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/powerpc/powerpc64.
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# The Aix ld uses global .symbol_names instead of symbol_names
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# and unfortunately early Linux PPC64 linkers use it as well.
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AC_CACHE_CHECK(for support for omitting dot symbols,
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libc_cv_omit_dot_syms, [dnl
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libc_cv_omit_dot_syms=no
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echo 'void foo (void) {}' > conftest.c
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if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
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if grep -w '\.foo' conftest.s > /dev/null; then
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:
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else
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libc_cv_omit_dot_syms=yes
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fi
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fi
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rm -f conftest.c conftest.s
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])
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if test x$libc_cv_omit_dot_syms != xyes; then
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AC_DEFINE(HAVE_ASM_GLOBAL_DOT_NAME)
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fi
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AC_CACHE_CHECK(for linker support for overlapping .opd entries,
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libc_cv_overlapping_opd, [dnl
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libc_cv_overlapping_opd=no
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echo 'void foo (void) {}' > conftest.c
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if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
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changequote(,)dnl
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if grep '\.TOC\.@tocbase' conftest.s > /dev/null; then
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if grep '\.TOC\.@tocbase[ ]*,[ ]*0' conftest.s > /dev/null; then
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:
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else
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libc_cv_overlapping_opd=yes
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fi
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fi
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changequote([,])dnl
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fi
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rm -f conftest.c conftest.s
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])
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if test x$libc_cv_overlapping_opd = xyes; then
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AC_DEFINE(USE_PPC64_OVERLAPPING_OPD)
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fi
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