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| author | H.J. Lu <hjl.tools@gmail.com> | 2016-03-30 05:57:48 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2016-08-08 08:48:50 -0700 |
| commit | d389bf5d011626a2523fe5c7939748588517c8ae (patch) | |
| tree | 96de277c4b8fa88a610985110049c4951113ddce | |
| parent | eb029340d92c3a0b415860ca899a7c653e344f0e (diff) | |
| download | gcc-d389bf5d011626a2523fe5c7939748588517c8ae.tar.gz | |
Build x86 libitm with -march=i486 or better
If x86 libitm isn't compiled with -march=i486 or better, append
-march=i486 XCFLAGS for x86 libitm build.
PR target/70454
* configure.tgt (XCFLAGS): Append -march=i486 to compile x86
libitm if needed.
| -rw-r--r-- | libitm/configure.tgt | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/libitm/configure.tgt b/libitm/configure.tgt index e84382f5950..177c0c4d0e7 100644 --- a/libitm/configure.tgt +++ b/libitm/configure.tgt @@ -55,16 +55,25 @@ case "${target_cpu}" in arm*) ARCH=arm ;; - i[3456]86) - case " ${CC} ${CFLAGS} " in - *" -m64 "*|*" -mx32 "*) - ;; - *) - if test -z "$with_arch"; then - XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}" - XCFLAGS="${XCFLAGS} -fomit-frame-pointer" - fi - esac + i[3456]86 | x86_64) + # Need i486 or better. + cat > conftestx.c <<EOF +#if defined __x86_64__ || defined __i486__ || defined __pentium__ \ + || defined __pentiumpro__ || defined __pentium4__ \ + || defined __geode__ || defined __SSE__ +# error Need i486 or better +#endif +EOF + if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then + if test "${target_cpu}" = x86_64; then + XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic" + XCFLAGS="${XCFLAGS} -fomit-frame-pointer" + else + XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}" + XCFLAGS="${XCFLAGS} -fomit-frame-pointer" + fi + fi + rm -f conftestx.c conftestx.o XCFLAGS="${XCFLAGS} -mrtm" ARCH=x86 ;; @@ -99,16 +108,6 @@ case "${target_cpu}" in ARCH=sparc ;; - x86_64) - case " ${CC} ${CFLAGS} " in - *" -m32 "*) - XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic" - XCFLAGS="${XCFLAGS} -fomit-frame-pointer" - ;; - esac - XCFLAGS="${XCFLAGS} -mrtm" - ARCH=x86 - ;; s390|s390x) XCFLAGS="${XCFLAGS} -mzarch -mhtm" ARCH=s390 |