From faf35e26740461fe1a1da5433d5a0169a663e3b5 Mon Sep 17 00:00:00 2001 From: Khem Raj Date: Fri, 29 Apr 2016 20:03:28 +0000 Subject: [PATCH 34/39] libgcc: Add knob to use ldbl-128 on ppc musl does not support ldbl 128 so we can not assume that linux as a whole supports ldbl-128 bits, instead act upon configure option passed to gcc and assume no on musl and yes otherwise if no option is passed since default behaviour is to assume ldbl128 it does not change the defaults Signed-off-by: Khem Raj --- Upstream-Status: Pending libgcc/Makefile.in | 1 + libgcc/config/rs6000/t-linux | 5 ++++- libgcc/configure | 18 ++++++++++++++++++ libgcc/configure.ac | 12 ++++++++++++ 4 files changed, 35 insertions(+), 1 deletion(-) mode change 100644 => 100755 libgcc/configure diff --git a/libgcc/Makefile.in b/libgcc/Makefile.in index dd8cee99fd3..b5f478af382 100644 --- a/libgcc/Makefile.in +++ b/libgcc/Makefile.in @@ -48,6 +48,7 @@ unwind_header = @unwind_header@ md_unwind_header = @md_unwind_header@ sfp_machine_header = @sfp_machine_header@ thread_header = @thread_header@ +with_ldbl128 = @with_ldbl128@ host_noncanonical = @host_noncanonical@ real_host_noncanonical = @real_host_noncanonical@ diff --git a/libgcc/config/rs6000/t-linux b/libgcc/config/rs6000/t-linux index 4f6d4c4a4d2..c50dd94a2da 100644 --- a/libgcc/config/rs6000/t-linux +++ b/libgcc/config/rs6000/t-linux @@ -1,3 +1,6 @@ SHLIB_MAPFILES += $(srcdir)/config/rs6000/libgcc-glibc.ver -HOST_LIBGCC2_CFLAGS += -mlong-double-128 -mno-minimal-toc +ifeq ($(with_ldbl128),yes) +HOST_LIBGCC2_CFLAGS += -mlong-double-128 +endif +HOST_LIBGCC2_CFLAGS += -mno-minimal-toc diff --git a/libgcc/configure b/libgcc/configure old mode 100644 new mode 100755 index b2f3f870844..ed806587c17 --- a/libgcc/configure +++ b/libgcc/configure @@ -619,6 +619,7 @@ build_vendor build_cpu build with_aix_soname +with_ldbl128 enable_vtable_verify enable_shared libgcc_topdir @@ -668,6 +669,7 @@ with_cross_host with_ld enable_shared enable_vtable_verify +with_long_double_128 with_aix_soname enable_version_specific_runtime_libs with_slibdir @@ -1329,6 +1331,7 @@ Optional Packages: --with-target-subdir=SUBDIR Configuring in a subdirectory for target --with-cross-host=HOST Configuring with a cross compiler --with-ld arrange to use the specified ld (full pathname) + --with-long-double-128 use 128-bit long double by default --with-aix-soname=aix|svr4|both shared library versioning (aka "SONAME") variant to provide on AIX @@ -2213,6 +2216,21 @@ fi +# Check whether --with-long-double-128 was given. +if test "${with_long_double_128+set}" = set; then : + withval=$with_long_double_128; with_ldbl128="$with_long_double_128" +else + case "${host}" in + power*-*-musl*) + with_ldbl128="no";; + *) with_ldbl128="yes";; + esac + +fi + + + + # Check whether --with-aix-soname was given. if test "${with_aix_soname+set}" = set; then : withval=$with_aix_soname; case "${host}:${enable_shared}" in diff --git a/libgcc/configure.ac b/libgcc/configure.ac index b59aa746afc..42220a263c5 100644 --- a/libgcc/configure.ac +++ b/libgcc/configure.ac @@ -78,6 +78,18 @@ AC_ARG_ENABLE(vtable-verify, [enable_vtable_verify=no]) AC_SUBST(enable_vtable_verify) +AC_ARG_WITH(long-double-128, +[AS_HELP_STRING([--with-long-double-128], + [use 128-bit long double by default])], + with_ldbl128="$with_long_double_128", +[case "${host}" in + power*-*-musl*) + with_ldbl128="no";; + *) with_ldbl128="yes";; + esac +]) +AC_SUBST(with_ldbl128) + AC_ARG_WITH(aix-soname, [AS_HELP_STRING([--with-aix-soname=aix|svr4|both], [shared library versioning (aka "SONAME") variant to provide on AIX])], -- 2.17.0