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.
author: Szabolcs Nagy <szabolcs.nagy@arm.com> 2018-02-22 11:34:40 +0000
committer: Szabolcs Nagy <szabolcs.nagy@arm.com> 2018-11-21 09:55:02 +0000
commit: c20a10561adab4aeb544e777cbb86679bd5f876d (patch)
tree: 5d07ca98e7f115bbee7eea2bae1792acbab72e86 /sysdeps/unix
parent: bcdaad21d4635931d1bd3b54a7894276925d081d (diff)
download: glibc-c20a10561adab4aeb544e777cbb86679bd5f876d.tar.gz
glibc-c20a10561adab4aeb544e777cbb86679bd5f876d.tar.xz
glibc-c20a10561adab4aeb544e777cbb86679bd5f876d.zip
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 37e99a91bc..cfb8f7d729 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 2773d61cd1..8a7f92f548 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 e126eb07e3..a4a2c9b5e0 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 679bbfbd59..c665d65ef1 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 3110c1f4fa..6728695daa 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 33a99ff678..3a5d2fb84d 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 e126eb07e3..a4a2c9b5e0 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 40ac529f7f..84a580a3a0 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 4a2c2e669e..f2c3143b70 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 ff011f86f2..7ecaeea9d5 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 c19ee985a6..c3679e812c 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 2ed649a655..2964682f19 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 511b24b764..f7ceb788ce 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 a6e4e4edaa..7e1c1b559a 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 1e1f2b8d6e..de18417d46 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 331449dfcb..6dd35dbb28 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 643aa55498..b33b21431f 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 8cc5fdfc0b..567059b054 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 43525fccf6..baea13116d 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 fd973676e2..7249346330 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 470e64f4ef..629fb08f54 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 4a442c3989..ac703100df 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 f1fc0e9f4d..55098e04c8 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
author	Szabolcs Nagy <szabolcs.nagy@arm.com>	2018-02-22 11:34:40 +0000
committer	Szabolcs Nagy <szabolcs.nagy@arm.com>	2018-11-21 09:55:02 +0000
commit	c20a10561adab4aeb544e777cbb86679bd5f876d (patch)
tree	5d07ca98e7f115bbee7eea2bae1792acbab72e86 /sysdeps/unix
parent	bcdaad21d4635931d1bd3b54a7894276925d081d (diff)
download	glibc-c20a10561adab4aeb544e777cbb86679bd5f876d.tar.gz glibc-c20a10561adab4aeb544e777cbb86679bd5f876d.tar.xz glibc-c20a10561adab4aeb544e777cbb86679bd5f876d.zip