mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 23:00:07 +00:00
fc4ecce85b
The arch13 memmove variant is currently selected by the ifunc selector
if the Miscellaneous-Instruction-Extensions Facility 3 facility bit
is present, but the function is also using vector instructions.
If the vector support is not present, one is receiving an operation
exception.
Therefore this patch also checks for vector support in the ifunc
selector and in ifunc-impl-list.c.
Just to be sure, the configure check is now also testing an arch13
vector instruction and an arch13 Miscellaneous-Instruction-Extensions
Facility 3 instruction.
(cherry picked from commit 7759be2593)
340 lines
10 KiB
Plaintext
340 lines
10 KiB
Plaintext
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/s390.
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$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_tbegin" >&5
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$as_echo_n "checking for __builtin_tbegin... " >&6; }
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if ${libc_cv_gcc_builtin_tbegin+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.c <<\EOF
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#include <htmintrin.h>
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void testtransaction ()
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{
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if (__builtin_tbegin (0) == _HTM_TBEGIN_STARTED)
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{
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__builtin_tend ();
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}
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}
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EOF
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if { ac_try='${CC-cc} -mhtm -O2 -S conftest.c -o - | grep -w tbegin > /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; } ;
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then
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libc_cv_gcc_builtin_tbegin=yes
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else
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libc_cv_gcc_builtin_tbegin=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_builtin_tbegin" >&5
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$as_echo "$libc_cv_gcc_builtin_tbegin" >&6; }
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if test "$libc_cv_gcc_builtin_tbegin" = no ; then
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critic_missing="$critic_missing The used GCC has no support for __builtin_tbegin, which is needed for lock-elision on target S390."
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 vector instruction support" >&5
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$as_echo_n "checking for S390 vector instruction support... " >&6; }
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if ${libc_cv_asm_s390_vx+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.c <<\EOF
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void testvecinsn ()
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{
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__asm__ (".machine \"z13\" \n\t"
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".machinemode \"zarch_nohighgprs\" \n\t"
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"vistrbs %%v16,%%v17 \n\t"
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"locghie %%r1,0" : :);
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}
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EOF
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if { ac_try='${CC-cc} --shared conftest.c -o conftest.o &> /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; } ;
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then
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libc_cv_asm_s390_vx=yes
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else
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libc_cv_asm_s390_vx=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_vx" >&5
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$as_echo "$libc_cv_asm_s390_vx" >&6; }
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if test "$libc_cv_asm_s390_vx" = yes ;
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then
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$as_echo "#define HAVE_S390_VX_ASM_SUPPORT 1" >>confdefs.h
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Use binutils with vector-support in order to use optimized implementations." >&5
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$as_echo "$as_me: WARNING: Use binutils with vector-support in order to use optimized implementations." >&2;}
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 vector support in gcc" >&5
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$as_echo_n "checking for S390 vector support in gcc... " >&6; }
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if ${libc_cv_gcc_s390_vx+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.c <<\EOF
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void testvecclobber ()
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{
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__asm__ ("" : : : "v16");
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}
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EOF
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if { ac_try='${CC-cc} --shared conftest.c -o conftest.o &> /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; } ;
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then
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libc_cv_gcc_s390_vx=yes
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else
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libc_cv_gcc_s390_vx=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_s390_vx" >&5
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$as_echo "$libc_cv_gcc_s390_vx" >&6; }
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if test "$libc_cv_gcc_s390_vx" = yes ;
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then
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$as_echo "#define HAVE_S390_VX_GCC_SUPPORT 1" >>confdefs.h
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 arch13 zarch instruction support" >&5
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$as_echo_n "checking for S390 arch13 zarch instruction support... " >&6; }
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if ${libc_cv_asm_s390_arch13+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.c <<\EOF
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void testinsn (char *buf)
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{
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__asm__ (".machine \"arch13\" \n\t"
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".machinemode \"zarch_nohighgprs\" \n\t"
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"lghi %%r0,16 \n\t"
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"mvcrl 0(%0),32(%0) \n\t"
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"vstrs %%v20,%%v20,%%v20,%%v20,0,2"
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: : "a" (buf) : "memory", "r0");
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}
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
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-o conftest.o &> /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; } ;
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then
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libc_cv_asm_s390_arch13=yes
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else
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libc_cv_asm_s390_arch13=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_arch13" >&5
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$as_echo "$libc_cv_asm_s390_arch13" >&6; }
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if test "$libc_cv_asm_s390_arch13" = yes ;
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then
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$as_echo "#define HAVE_S390_ARCH13_ASM_SUPPORT 1" >>confdefs.h
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 z10 zarch instruction support as default" >&5
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$as_echo_n "checking for S390 z10 zarch instruction support as default... " >&6; }
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if ${libc_cv_asm_s390_min_z10_zarch+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.c <<\EOF
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void testinsn (void *a, void *b, int n)
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{
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__asm__ ("exrl %2,1f \n\t"
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"j 2f \n\t"
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"1: mvc 0(1,%0),0(%1) \n\t"
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"2:"
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: : "a" (a), "a" (b), "d" (n)
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: "memory", "cc");
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}
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
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-o conftest.o &> /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; } ;
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then
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libc_cv_asm_s390_min_z10_zarch=yes
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else
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libc_cv_asm_s390_min_z10_zarch=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z10_zarch" >&5
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$as_echo "$libc_cv_asm_s390_min_z10_zarch" >&6; }
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if test "$libc_cv_asm_s390_min_z10_zarch" = yes ;
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then
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$as_echo "#define HAVE_S390_MIN_Z10_ZARCH_ASM_SUPPORT 1" >>confdefs.h
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 z196 zarch instruction support as default" >&5
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$as_echo_n "checking for S390 z196 zarch instruction support as default... " >&6; }
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if ${libc_cv_asm_s390_min_z196_zarch+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.c <<\EOF
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float testinsn (double e)
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{
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float d;
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__asm__ ("ledbra %0,5,%1,4" : "=f" (d) : "f" (e) );
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return d;
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}
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
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-o conftest.o &> /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; } ;
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then
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libc_cv_asm_s390_min_z196_zarch=yes
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else
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libc_cv_asm_s390_min_z196_zarch=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z196_zarch" >&5
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$as_echo "$libc_cv_asm_s390_min_z196_zarch" >&6; }
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if test "$libc_cv_asm_s390_min_z196_zarch" = yes ;
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then
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$as_echo "#define HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT 1" >>confdefs.h
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 z13 zarch instruction support as default" >&5
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$as_echo_n "checking for S390 z13 zarch instruction support as default... " >&6; }
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if ${libc_cv_asm_s390_min_z13_zarch+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.c <<\EOF
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int testinsn (void)
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{
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int i;
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__asm__ ("vl %%v16,0(%%r15)\n\t"
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"vlgvf %0,%%v16,0"
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: "=d" (i) : : "memory", "v16");
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return i;
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}
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
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-o conftest.o &> /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; } ;
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then
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libc_cv_asm_s390_min_z13_zarch=yes
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else
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libc_cv_asm_s390_min_z13_zarch=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z13_zarch" >&5
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$as_echo "$libc_cv_asm_s390_min_z13_zarch" >&6; }
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if test "$libc_cv_asm_s390_min_z13_zarch" = yes ;
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then
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$as_echo "#define HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT 1" >>confdefs.h
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 arch13 zarch instruction support as default" >&5
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$as_echo_n "checking for S390 arch13 zarch instruction support as default... " >&6; }
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if ${libc_cv_asm_s390_min_arch13_zarch+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.c <<\EOF
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void testinsn (char *buf)
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{
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__asm__ ("lghi %%r0,16 \n\t"
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"mvcrl 0(%0),32(%0) \n\t"
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"vstrs %%v20,%%v20,%%v20,%%v20,0,2"
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: : "a" (buf) : "memory", "r0");
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}
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
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-o conftest.o &> /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; } ;
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then
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libc_cv_asm_s390_min_arch13_zarch=yes
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else
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libc_cv_asm_s390_min_arch13_zarch=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_arch13_zarch" >&5
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$as_echo "$libc_cv_asm_s390_min_arch13_zarch" >&6; }
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if test "$libc_cv_asm_s390_min_arch13_zarch" = yes ;
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then
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$as_echo "#define HAVE_S390_MIN_ARCH13_ZARCH_ASM_SUPPORT 1" >>confdefs.h
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC is sufficient to build libc on s390x" >&5
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$as_echo_n "checking if $CC is sufficient to build libc on s390x... " >&6; }
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if ${libc_cv_compiler_ok_on_s390x+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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int
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main ()
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{
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#if !defined __GNUC__ || __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 1)
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#error insufficient compiler for building on s390x
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#endif
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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libc_cv_compiler_ok_on_s390x=yes
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else
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libc_cv_compiler_ok_on_s390x=no
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_ok_on_s390x" >&5
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$as_echo "$libc_cv_compiler_ok_on_s390x" >&6; }
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if test "$libc_cv_compiler_ok_on_s390x" != yes; then
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critic_missing="$critic_missing On s390x, GCC >= 7.1.0 is required."
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fi
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test -n "$critic_missing" && as_fn_error $? "
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*** $critic_missing" "$LINENO" 5
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