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| author | Gabriel F. T. Gomes <gabrielftg@linux.ibm.com> | 2019-07-11 11:48:28 -0300 |
|---|---|---|
| committer | Paul E. Murphy <murphyp@linux.vnet.ibm.com> | 2020-04-30 08:52:08 -0500 |
| commit | 051be01f6b41a1466b07ae4bd7f5894a8ec5fe67 (patch) | |
| tree | ed6a5039071b23a77ff5f7f52570bff2b1023da2 /sysdeps/powerpc | |
| parent | 5c7ccc29830fb59d39d67222caca5b4bd6ca2e0f (diff) | |
| download | glibc-051be01f6b41a1466b07ae4bd7f5894a8ec5fe67.zip glibc-051be01f6b41a1466b07ae4bd7f5894a8ec5fe67.tar.gz glibc-051be01f6b41a1466b07ae4bd7f5894a8ec5fe67.tar.bz2 | |
powerpc64le: Enable support for IEEE long double
On platforms where long double may have two different formats, i.e.: the
same format as double (64-bits) or something else (128-bits), building
with -mlong-double-128 is the default and function calls in the user
program match the name of the function in Glibc. When building with
-mlong-double-64, Glibc installed headers redirect such calls to the
appropriate function.
Likewise, the internals of glibc are now built against IEEE long double.
However, the only (minimally) notable usage of long double is difftime.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
Diffstat (limited to 'sysdeps/powerpc')
| -rw-r--r-- | sysdeps/powerpc/fpu/libm-test-ulps | 4 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/le/Implies-before | 1 | ||||
| -rw-r--r-- | sysdeps/powerpc/powerpc64/le/Makefile | 4 |
3 files changed, 9 insertions, 0 deletions
diff --git a/sysdeps/powerpc/fpu/libm-test-ulps b/sysdeps/powerpc/fpu/libm-test-ulps index 1c989e0..cd2a5fe 100644 --- a/sysdeps/powerpc/fpu/libm-test-ulps +++ b/sysdeps/powerpc/fpu/libm-test-ulps @@ -1266,21 +1266,25 @@ ldouble: 1 Function: "gamma": double: 3 float: 4 +float128: 5 ldouble: 3 Function: "gamma_downward": double: 4 float: 4 +float128: 8 ldouble: 15 Function: "gamma_towardzero": double: 4 float: 3 +float128: 5 ldouble: 16 Function: "gamma_upward": double: 4 float: 5 +float128: 8 ldouble: 11 Function: "hypot": diff --git a/sysdeps/powerpc/powerpc64/le/Implies-before b/sysdeps/powerpc/powerpc64/le/Implies-before index 7c20db4..2139f4d 100644 --- a/sysdeps/powerpc/powerpc64/le/Implies-before +++ b/sysdeps/powerpc/powerpc64/le/Implies-before @@ -1,4 +1,5 @@ # On PowerPC we use the IBM extended long double format. +ieee754/ldbl-128ibm-compat ieee754/ldbl-128ibm ieee754/ldbl-opt ieee754/dbl-64 diff --git a/sysdeps/powerpc/powerpc64/le/Makefile b/sysdeps/powerpc/powerpc64/le/Makefile index 6afa122..05ab13d 100644 --- a/sysdeps/powerpc/powerpc64/le/Makefile +++ b/sysdeps/powerpc/powerpc64/le/Makefile @@ -20,6 +20,10 @@ no-gnu-attribute-CFLAGS = -mno-gnu-attribute # We built an object file and extract the desired .gnu.attributes section # to be inserted into lib{c,m}.so. ifeq ($(build-shared),yes) + +# Build everything with IEEE 128-bit long double. +sysdep-CFLAGS += -mabi=ieeelongdouble -Wno-psabi $(no-gnu-attribute-CFLAGS) + before-compile += $(common-objpfx)no_ldbl_gnu_attribute.bin $(common-objpfx)no_ldbl_gnu_attribute.bin: $(..)sysdeps/powerpc/powerpc64/le/no_ldbl_gnu_attribute.c |