Restore sparc32 copysignl, fabsl, fmal compat symbols (bug 22229).

32-bit SPARC libm should have compat symbols for copysignl
(GLIBC_2.0), fabsl (GLIBC_2.0), fmal (GLIBC_2.1), pointing to the
double functions; they were present in glibc 2.8, for example, but are
now missing, probably when optimized SPARC function implementations
were added without appropriate compat symbol handling.  The same
applies to copysignl in libc.  This patch restores those compat
symbols.

Tested with build-many-glibcs.py for sparcv9-linux-gnu.

	[BZ #22229]
	* sysdeps/sparc/sparc32/fpu/s_copysign.S: Include
	<math_ldbl_opt.h>
	(copysignl): Define as compat symbol at version GLIBC_2_0 for libm
	and libc.
	* sysdeps/sparc/sparc32/fpu/s_fabs.S: Include <math_ldbl_opt.h>.
	(fabsl): Define as compat symbol at version GLIBC_2_0 for libm.
	* sysdeps/sparc/sparc32/fpu/s_fma.c: Include <math_ldbl_opt.h>.
	(fmal): Define as compat symbol at version GLIBC_2_1 for libm.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.S:
	Include <math_ldbl_opt.h>
	(copysignl): Define as compat symbol at version GLIBC_2_0 for libm
	and libc.
	(compat_symbol): Undefine and redefine.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fabs.S: Include
	<math_ldbl_opt.h>
	(fabsl): Define as compat symbol at version GLIBC_2_0 for libm.
	(compat_symbol): Undefine and redefine.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fma.c
	[HAVE_AS_VIS3_SUPPORT]: Include <math_ldbl_opt.h>.
	[HAVE_AS_VIS3_SUPPORT] (fmal): Define as compat symbol at version
	GLIBC_2_1 for libm.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Add
	GLIBC_2.0 copysignl symbol.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Add
	GLIBC_2.0 copysignl and fabsl and GLIBC_2.1 fmal symbols.

6 files changed, 35 insertions, 1 deletions

diff --git a/sysdeps/sparc/sparc32/fpu/s_copysign.S b/sysdeps/sparc/sparc32/fpu/s_copysign.S
index bddbfb2386..348cabcbb7 100644
--- a/sysdeps/sparc/sparc32/fpu/s_copysign.S
+++ b/sysdeps/sparc/sparc32/fpu/s_copysign.S
@@ -18,6 +18,7 @@
    <http://www.gnu.org/licenses/>.  */
 
 #include <sysdep.h>
+#include <math_ldbl_opt.h>
 
 ENTRY (__copysign)
 	sethi	%hi(0x80000000), %g1
@@ -28,4 +29,10 @@ ENTRY (__copysign)
 	retl
 	 ldd	[%sp + 72], %f0
 END (__copysign)
-weak_alias (__copysign, copysign)
\ No newline at end of file
+weak_alias (__copysign, copysign)
+#if LONG_DOUBLE_COMPAT (libm, GLIBC_2_0)
+compat_symbol (libm, __copysign, copysignl, GLIBC_2_0);
+#endif
+#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
+compat_symbol (libc, __copysign, copysignl, GLIBC_2_0);
+#endif
diff --git a/sysdeps/sparc/sparc32/fpu/s_fabs.S b/sysdeps/sparc/sparc32/fpu/s_fabs.S
index fdeda68898..774949af23 100644
--- a/sysdeps/sparc/sparc32/fpu/s_fabs.S
+++ b/sysdeps/sparc/sparc32/fpu/s_fabs.S
@@ -17,6 +17,7 @@
    <http://www.gnu.org/licenses/>.  */
 
 #include <sysdep.h>
+#include <math_ldbl_opt.h>
 
 ENTRY (__fabs)
 	st	%o0, [%sp+72]
@@ -26,3 +27,6 @@ ENTRY (__fabs)
 	 fabss	%f0, %f0
 END (__fabs)
 weak_alias (__fabs, fabs)
+#if LONG_DOUBLE_COMPAT (libm, GLIBC_2_0)
+compat_symbol (libm, __fabs, fabsl, GLIBC_2_0);
+#endif
diff --git a/sysdeps/sparc/sparc32/fpu/s_fma.c b/sysdeps/sparc/sparc32/fpu/s_fma.c
index 8f62605870..bfdcb23b3a 100644
--- a/sysdeps/sparc/sparc32/fpu/s_fma.c
+++ b/sysdeps/sparc/sparc32/fpu/s_fma.c
@@ -1,2 +1,6 @@
 /* Always use dbl-64 version because long double is emulated in software.  */
+#include <math_ldbl_opt.h>
 #include <sysdeps/ieee754/dbl-64/s_fma.c>
+#if LONG_DOUBLE_COMPAT (libm, GLIBC_2_1)
+compat_symbol (libm, __fma, fmal, GLIBC_2_1);
+#endif
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.S b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.S
index cdd98c00f4..5d26430f70 100644
--- a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.S
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.S
@@ -1,11 +1,20 @@
 #include <sparc-ifunc.h>
+#include <math_ldbl_opt.h>
 
 SPARC_ASM_VIS3_IFUNC(copysign)
 
 weak_alias (__copysign, copysign)
+#if LONG_DOUBLE_COMPAT (libm, GLIBC_2_0)
+compat_symbol (libm, __copysign, copysignl, GLIBC_2_0);
+#endif
+#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
+compat_symbol (libc, __copysign, copysignl, GLIBC_2_0);
+#endif
 
 # undef weak_alias
 # define weak_alias(a, b)
+# undef compat_symbol
+# define compat_symbol(a, b, c, d)
 
 #define __copysign __copysign_generic
 
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fabs.S b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fabs.S
index 86c63989a4..72cc08fd66 100644
--- a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fabs.S
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fabs.S
@@ -1,11 +1,17 @@
 #include <sparc-ifunc.h>
+#include <math_ldbl_opt.h>
 
 SPARC_ASM_VIS3_IFUNC(fabs)
 
 weak_alias (__fabs, fabs)
+#if LONG_DOUBLE_COMPAT (libm, GLIBC_2_0)
+compat_symbol (libm, __fabs, fabsl, GLIBC_2_0);
+#endif
 
 # undef weak_alias
 # define weak_alias(a, b)
+# undef compat_symbol
+# define compat_symbol(a, b, c, d)
 
 #define __fabs __fabs_generic
 
diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fma.c b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fma.c
index 3f2f1622c8..05113c33d3 100644
--- a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fma.c
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fma.c
@@ -1,12 +1,16 @@
 #ifdef HAVE_AS_VIS3_SUPPORT
 # include <sparc-ifunc.h>
 # include <math.h>
+# include <math_ldbl_opt.h>
 
 extern double __fma_vis3 (double, double, double);
 extern double __fma_generic (double, double, double);
 
 sparc_libm_ifunc(__fma, hwcap & HWCAP_SPARC_FMAF ? __fma_vis3 : __fma_generic);
 weak_alias (__fma, fma)
+#if LONG_DOUBLE_COMPAT (libm, GLIBC_2_1)
+compat_symbol (libm, __fma, fmal, GLIBC_2_1);
+#endif
 
 # define __fma __fma_generic
 #endif