Remove the error handling wrapper from exp and exp2

Introduce new exp and exp2 symbol version that don't do SVID compatible
error handling.  The standard errno and fp exception based error handling
is inline in the new code and does not have significant overhead.

The double precision wrappers are disabled for sysdeps/ieee754/dbl-64
by using empty w_exp.c and w_exp2.c files, the math/w_exp.c and
math/w_exp2.c files use the wrapper template and can be included by
targets that have their own exp and exp2 implementations or use ifunc
on the glibc internal __ieee754_exp symbol.

The compatibility symbol versions still use the wrapper with SVID error
handling around the new code.  There is no new symbol version nor
compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv).

On targets where previously expl and exp2l were aliases of exp and exp2,
now they point to the compatibility symbols with the wrapper, because
they still need the SVID compatible error handling.  This affects
NO_LONG_DOUBLE (e.g arm) and LONG_DOUBLE_COMPAT (e.g. alpha) targets
as well.

The _finite symbols are now aliases of the standard symbols (they have
no performance advantage anymore).  Both the standard symbols and
_finite symbols set errno and thus not const functions.

The ia64 asm is changed so the compat and new symbol versions map to the
same address.

On x86_64 #include <math.h> was added before macro definitions that may
affect that header (the new macro name is __exp instead of __ieee754_exp
which breaks some math.h macros).

Tested with build-many-glibcs.py.

	* math/Versions (GLIBC_2.29): Add exp and exp2.
	* math/w_exp2_compat.c (__exp2_compat): Change to versioned compat
	symbol, handle NO_LONG_DOUBLE and LONG_DOUBLE_COMPAT explicitly.
	* math/w_exp_compat.c (__exp_compat): Likewise.
	* math/w_exp.c: New file.
	* math/w_exp2.c: New file.
	* sysdeps/i386/fpu/w_exp.c: New file.
	* sysdeps/i386/fpu/w_exp2.c: New file.
	* sysdeps/ia64/fpu/e_exp.S: Add versioned symbols.
	* sysdeps/ia64/fpu/e_exp2.S: Likewise.
	* sysdeps/ieee754/dbl-64/e_exp.c (__ieee754_exp): Rename to __exp
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/e_exp2.c (__ieee754_exp2): Rename to __exp2
	and add necessary aliases.
	* sysdeps/ieee754/dbl-64/w_exp.c: New file.
	* sysdeps/ieee754/dbl-64/w_exp2.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_exp.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_exp2.c: New file.
	* sysdeps/mach/hurd/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
	* sysdeps/x86_64/fpu/multiarch/e_exp-avx.c (__exp1): Remove.
	(__ieee754_exp): Rename to __exp.
	* sysdeps/x86_64/fpu/multiarch/e_exp-fma.c (__exp1): Remove.
	(__ieee754_exp): Rename to __exp.
	* sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c (__exp1): Remove.
	(__ieee754_exp): Rename to __exp.
	* sysdeps/x86_64/fpu/multiarch/e_exp.c (__ieee754_exp): Rename to
	__exp.
	* sysdeps/x86_64/fpu/multiarch/w_exp.c: New file.

23 files changed, 46 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/aarch64/libm.abilist b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
index 37e99a9..cfb8f7d 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
@@ -1032,3 +1032,5 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
diff --git a/sysdeps/unix/sysv/linux/alpha/libm.abilist b/sysdeps/unix/sysv/linux/alpha/libm.abilist
index 2773d61..8a7f92f 100644
--- a/sysdeps/unix/sysv/linux/alpha/libm.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libm.abilist
@@ -1043,6 +1043,8 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
 GLIBC_2.3.4 __c1_cabsf F
 GLIBC_2.3.4 __c1_cacosf F
 GLIBC_2.3.4 __c1_cacoshf F
diff --git a/sysdeps/unix/sysv/linux/arm/libm.abilist b/sysdeps/unix/sysv/linux/arm/libm.abilist
index e126eb0..a4a2c9b 100644
--- a/sysdeps/unix/sysv/linux/arm/libm.abilist
+++ b/sysdeps/unix/sysv/linux/arm/libm.abilist
@@ -453,6 +453,8 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
 GLIBC_2.4 _LIB_VERSION D 0x4
 GLIBC_2.4 __clog10 F
 GLIBC_2.4 __clog10f F
diff --git a/sysdeps/unix/sysv/linux/hppa/libm.abilist b/sysdeps/unix/sysv/linux/hppa/libm.abilist
index 679bbfb..c665d65 100644
--- a/sysdeps/unix/sysv/linux/hppa/libm.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/libm.abilist
@@ -764,4 +764,6 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
 GLIBC_2.4 exp2l F
diff --git a/sysdeps/unix/sysv/linux/i386/libm.abilist b/sysdeps/unix/sysv/linux/i386/libm.abilist
index 3110c1f..6728695 100644
--- a/sysdeps/unix/sysv/linux/i386/libm.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libm.abilist
@@ -1075,3 +1075,5 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
diff --git a/sysdeps/unix/sysv/linux/ia64/libm.abilist b/sysdeps/unix/sysv/linux/ia64/libm.abilist
index 33a99ff..3a5d2fb 100644
--- a/sysdeps/unix/sysv/linux/ia64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/libm.abilist
@@ -1005,3 +1005,5 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
index e126eb0..a4a2c9b 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
@@ -453,6 +453,8 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
 GLIBC_2.4 _LIB_VERSION D 0x4
 GLIBC_2.4 __clog10 F
 GLIBC_2.4 __clog10f F
diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
index 40ac529..84a580a 100644
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
@@ -804,3 +804,5 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
diff --git a/sysdeps/unix/sysv/linux/microblaze/libm.abilist b/sysdeps/unix/sysv/linux/microblaze/libm.abilist
index 4a2c2e6..f2c3143 100644
--- a/sysdeps/unix/sysv/linux/microblaze/libm.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/libm.abilist
@@ -765,3 +765,5 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
index ff011f8..7ecaeea 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
@@ -764,4 +764,6 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
 GLIBC_2.4 exp2l F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
index c19ee98..c3679e8 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
@@ -1032,3 +1032,5 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
diff --git a/sysdeps/unix/sysv/linux/nios2/libm.abilist b/sysdeps/unix/sysv/linux/nios2/libm.abilist
index 2ed649a..2964682 100644
--- a/sysdeps/unix/sysv/linux/nios2/libm.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/libm.abilist
@@ -765,3 +765,5 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
index 511b24b..f7ceb78 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
@@ -810,6 +810,8 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
 GLIBC_2.4 __fpclassifyl F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
index a6e4e4e..7e1c1b5 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
@@ -809,6 +809,8 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
 GLIBC_2.4 __fpclassifyl F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
index 1e1f2b8..de18417 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
@@ -1076,3 +1076,5 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
index 331449d..6dd35db 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
@@ -488,6 +488,8 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
 GLIBC_2.3 _LIB_VERSION D 0x4
 GLIBC_2.3 __clog10 F
 GLIBC_2.3 __clog10f F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
index 643aa55..b33b214 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
@@ -1033,6 +1033,8 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
 GLIBC_2.4 __fpclassifyl F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
index 8cc5fdf..567059b 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
@@ -1033,6 +1033,8 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
 GLIBC_2.4 __fpclassifyl F
diff --git a/sysdeps/unix/sysv/linux/sh/libm.abilist b/sysdeps/unix/sysv/linux/sh/libm.abilist
index 43525fc..baea131 100644
--- a/sysdeps/unix/sysv/linux/sh/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sh/libm.abilist
@@ -764,4 +764,6 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
 GLIBC_2.4 exp2l F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
index fd97367..7249346 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
@@ -1040,6 +1040,8 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
 GLIBC_2.4 __clog10l F
 GLIBC_2.4 __finitel F
 GLIBC_2.4 __fpclassifyl F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
index 470e64f..629fb08 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
@@ -1032,3 +1032,5 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
index 4a442c3..ac70310 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
@@ -1066,3 +1066,5 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
index f1fc0e9..55098e0 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
@@ -1066,3 +1066,5 @@ GLIBC_2.28 fmul F
 GLIBC_2.28 fmull F
 GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
+GLIBC_2.29 exp F
+GLIBC_2.29 exp2 F