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[PATCH 7/9] Remove the error handling wrapper from log
- From: Szabolcs Nagy <szabolcs dot nagy at arm dot com>
- To: GNU C Library <libc-alpha at sourceware dot org>
- Cc: nd at arm dot com
- Date: Fri, 29 Jun 2018 13:55:02 +0100
- Subject: [PATCH 7/9] Remove the error handling wrapper from log
Introduce new log symbol version that doesn'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 (only
affects uncommon special case code paths).
The w_log.c wrapper is disabled for sysdeps/ieee754/dbl-64 by using an
empty w_log.c and enabled for targets using their own log implementation.
The __log_finite symbol is just an alias to log now. For backward
compatibility the old log symbol versions still use a wrapper with
SVID error handling around the new code.
The ia64 asm is chaned 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.
2018-06-29 Szabolcs Nagy <szabolcs.nagy@arm.com>
* math/Versions (GLIBC_2.28): Add log.
* math/w_log_compat.c (__log_compat): Change to versioned compat
symbol.
* math/w_log.c: New file.
* sysdeps/i386/fpu/w_log.c: New file.
* sysdeps/ia64/fpu/e_log.S: Update.
* sysdeps/ieee754/dbl-64/e_log.c (__ieee754_log): Rename to __log
and add necessary aliases.
* sysdeps/ieee754/dbl-64/w_log.c: New file.
* sysdeps/m68k/m680x0/fpu/w_log.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.abilist: Update.
* sysdeps/unix/sysv/linux/riscv/rv64/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_log-avx.c (__ieee754_log): Rename to
__log.
* sysdeps/x86_64/fpu/multiarch/e_log-fma.c (__ieee754_log): Likewise.
* sysdeps/x86_64/fpu/multiarch/e_log-fma4.c (__ieee754_log): Likewise.
* sysdeps/x86_64/fpu/multiarch/e_log.c (__ieee754_log): Likewise.
* sysdeps/x86_64/fpu/multiarch/w_log.c: New file.
---
math/Versions | 2 +-
math/w_log.c | 8 ++++++++
math/w_log_compat.c | 6 +++---
sysdeps/i386/fpu/w_log.c | 1 +
sysdeps/ia64/fpu/e_log.S | 6 ++++++
sysdeps/ieee754/dbl-64/e_log.c | 11 ++++++++---
sysdeps/ieee754/dbl-64/w_log.c | 1 +
sysdeps/m68k/m680x0/fpu/w_log.c | 1 +
sysdeps/mach/hurd/i386/libm.abilist | 1 +
sysdeps/unix/sysv/linux/aarch64/libm.abilist | 1 +
sysdeps/unix/sysv/linux/alpha/libm.abilist | 1 +
sysdeps/unix/sysv/linux/arm/libm.abilist | 1 +
sysdeps/unix/sysv/linux/hppa/libm.abilist | 1 +
sysdeps/unix/sysv/linux/i386/libm.abilist | 1 +
sysdeps/unix/sysv/linux/ia64/libm.abilist | 1 +
sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist | 1 +
sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist | 1 +
sysdeps/unix/sysv/linux/microblaze/libm.abilist | 1 +
sysdeps/unix/sysv/linux/mips/mips32/libm.abilist | 1 +
sysdeps/unix/sysv/linux/mips/mips64/libm.abilist | 1 +
sysdeps/unix/sysv/linux/nios2/libm.abilist | 1 +
sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist | 1 +
sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist | 1 +
sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist | 1 +
sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist | 1 +
sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist | 1 +
sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist | 1 +
sysdeps/unix/sysv/linux/sh/libm.abilist | 1 +
sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist | 1 +
sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist | 1 +
sysdeps/unix/sysv/linux/x86_64/64/libm.abilist | 1 +
sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist | 1 +
sysdeps/x86_64/fpu/multiarch/e_log-avx.c | 2 +-
sysdeps/x86_64/fpu/multiarch/e_log-fma.c | 2 +-
sysdeps/x86_64/fpu/multiarch/e_log-fma4.c | 2 +-
sysdeps/x86_64/fpu/multiarch/e_log.c | 4 +++-
sysdeps/x86_64/fpu/multiarch/w_log.c | 1 +
37 files changed, 60 insertions(+), 11 deletions(-)
create mode 100644 math/w_log.c
create mode 100644 sysdeps/i386/fpu/w_log.c
create mode 100644 sysdeps/ieee754/dbl-64/w_log.c
create mode 100644 sysdeps/m68k/m680x0/fpu/w_log.c
create mode 100644 sysdeps/x86_64/fpu/multiarch/w_log.c
diff --git a/math/Versions b/math/Versions
index a6503e8798..78d02c2f41 100644
--- a/math/Versions
+++ b/math/Versions
@@ -575,6 +575,6 @@ libm {
f32xsubf64x; f32xsubf128; f64subf64x; f64subf128;
f64xsubf128;
# No SVID compatible error handling.
- exp; exp2;
+ exp; exp2; log;
}
}
diff --git a/math/w_log.c b/math/w_log.c
new file mode 100644
index 0000000000..710482c699
--- /dev/null
+++ b/math/w_log.c
@@ -0,0 +1,8 @@
+#include <math-type-macros-double.h>
+#undef __USE_WRAPPER_TEMPLATE
+#define __USE_WRAPPER_TEMPLATE 1
+#undef declare_mgen_alias
+#define declare_mgen_alias(a, b)
+#include <w_log_template.c>
+versioned_symbol (libm, __log, log, GLIBC_2_28);
+libm_alias_double_other (__log, log)
diff --git a/math/w_log_compat.c b/math/w_log_compat.c
index 5413b8e8df..fc45dc700e 100644
--- a/math/w_log_compat.c
+++ b/math/w_log_compat.c
@@ -23,10 +23,10 @@
#include <libm-alias-double.h>
-#if LIBM_SVID_COMPAT
+#if LIBM_SVID_COMPAT && SHLIB_COMPAT (libm, GLIBC_2_0, GLIBC_2_28)
/* wrapper log(x) */
double
-__log (double x)
+__log_compat (double x)
{
if (__builtin_expect (islessequal (x, 0.0), 0) && _LIB_VERSION != _IEEE_)
{
@@ -44,5 +44,5 @@ __log (double x)
return __ieee754_log (x);
}
-libm_alias_double (__log, log)
+compat_symbol (libm, __log_compat, log, GLIBC_2_0);
#endif
diff --git a/sysdeps/i386/fpu/w_log.c b/sysdeps/i386/fpu/w_log.c
new file mode 100644
index 0000000000..9b2b018711
--- /dev/null
+++ b/sysdeps/i386/fpu/w_log.c
@@ -0,0 +1 @@
+#include <sysdeps/../math/w_log.c>
diff --git a/sysdeps/ia64/fpu/e_log.S b/sysdeps/ia64/fpu/e_log.S
index 0b63ec43c5..3a106f44b9 100644
--- a/sysdeps/ia64/fpu/e_log.S
+++ b/sysdeps/ia64/fpu/e_log.S
@@ -1670,6 +1670,12 @@ log_libm_err:
};;
GLOBAL_IEEE754_END(log)
libm_alias_double_other (__log, log)
+#ifdef SHARED
+.symver log,log@@GLIBC_2.28
+.weak __log_compat
+.set __log_compat,__log
+.symver __log_compat,log@GLIBC_2.0
+#endif
LOCAL_LIBM_ENTRY(__libm_error_region)
diff --git a/sysdeps/ieee754/dbl-64/e_log.c b/sysdeps/ieee754/dbl-64/e_log.c
index 77d14f462b..f76538feb1 100644
--- a/sysdeps/ieee754/dbl-64/e_log.c
+++ b/sysdeps/ieee754/dbl-64/e_log.c
@@ -18,6 +18,8 @@
#include <math.h>
#include <stdint.h>
+#include <shlib-compat.h>
+#include <libm-alias-double.h>
#include "math_config.h"
#define T __log_data.tab
@@ -42,7 +44,7 @@ top16 (double x)
double
SECTION
-__ieee754_log (double x)
+__log (double x)
{
/* double_t for better performance on targets with FLT_EVAL_METHOD==2. */
double_t w, z, r, r2, r3, y, invc, logc, kd, hi, lo;
@@ -148,6 +150,9 @@ __ieee754_log (double x)
#endif
return y;
}
-#ifndef __ieee754_log
-strong_alias (__ieee754_log, __log_finite)
+#ifndef __log
+strong_alias (__log, __ieee754_log)
+strong_alias (__log, __log_finite)
+versioned_symbol (libm, __log, log, GLIBC_2_28);
+libm_alias_double_other (__log, log)
#endif
diff --git a/sysdeps/ieee754/dbl-64/w_log.c b/sysdeps/ieee754/dbl-64/w_log.c
new file mode 100644
index 0000000000..1cc8931700
--- /dev/null
+++ b/sysdeps/ieee754/dbl-64/w_log.c
@@ -0,0 +1 @@
+/* Not needed. */
diff --git a/sysdeps/m68k/m680x0/fpu/w_log.c b/sysdeps/m68k/m680x0/fpu/w_log.c
new file mode 100644
index 0000000000..9b2b018711
--- /dev/null
+++ b/sysdeps/m68k/m680x0/fpu/w_log.c
@@ -0,0 +1 @@
+#include <sysdeps/../math/w_log.c>
diff --git a/sysdeps/mach/hurd/i386/libm.abilist b/sysdeps/mach/hurd/i386/libm.abilist
index 8b94b67140..e4df9ed69d 100644
--- a/sysdeps/mach/hurd/i386/libm.abilist
+++ b/sysdeps/mach/hurd/i386/libm.abilist
@@ -1070,3 +1070,4 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log F
diff --git a/sysdeps/unix/sysv/linux/aarch64/libm.abilist b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
index d3bcd37960..1c3add0005 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
@@ -1034,3 +1034,4 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log F
diff --git a/sysdeps/unix/sysv/linux/alpha/libm.abilist b/sysdeps/unix/sysv/linux/alpha/libm.abilist
index d1198e1e8f..3f322996a5 100644
--- a/sysdeps/unix/sysv/linux/alpha/libm.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libm.abilist
@@ -1045,6 +1045,7 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log 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 f425add367..709a2f6b75 100644
--- a/sysdeps/unix/sysv/linux/arm/libm.abilist
+++ b/sysdeps/unix/sysv/linux/arm/libm.abilist
@@ -455,6 +455,7 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log 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 726b1511c4..843b35ff24 100644
--- a/sysdeps/unix/sysv/linux/hppa/libm.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/libm.abilist
@@ -766,4 +766,5 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log 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 8198a183e0..e813a34b69 100644
--- a/sysdeps/unix/sysv/linux/i386/libm.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libm.abilist
@@ -1077,3 +1077,4 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log F
diff --git a/sysdeps/unix/sysv/linux/ia64/libm.abilist b/sysdeps/unix/sysv/linux/ia64/libm.abilist
index 47b7e7ed15..b71bb9b08f 100644
--- a/sysdeps/unix/sysv/linux/ia64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/libm.abilist
@@ -1007,3 +1007,4 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log F
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
index f425add367..709a2f6b75 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
@@ -455,6 +455,7 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log 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 c5ec0f9f13..591b67823c 100644
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
@@ -806,3 +806,4 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log F
diff --git a/sysdeps/unix/sysv/linux/microblaze/libm.abilist b/sysdeps/unix/sysv/linux/microblaze/libm.abilist
index d731b5912c..ada5cb622e 100644
--- a/sysdeps/unix/sysv/linux/microblaze/libm.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/libm.abilist
@@ -767,3 +767,4 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
index bb3b05487f..085b26ade4 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
@@ -766,4 +766,5 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log 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 e395509999..e3857aa5e5 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
@@ -1034,3 +1034,4 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log F
diff --git a/sysdeps/unix/sysv/linux/nios2/libm.abilist b/sysdeps/unix/sysv/linux/nios2/libm.abilist
index 721e931859..72da89b941 100644
--- a/sysdeps/unix/sysv/linux/nios2/libm.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/libm.abilist
@@ -767,3 +767,4 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
index 50ae595087..3191dd05ab 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
@@ -812,6 +812,7 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log 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 715410f54f..74f61203af 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
@@ -811,6 +811,7 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log 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.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
index 5882439a2a..a57ea562e1 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
@@ -490,6 +490,7 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log 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/riscv/rv64/libm.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist
index af1a5bf260..83a78fc91a 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist
@@ -1021,3 +1021,4 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
index 5df3451518..53dbbe1a45 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
@@ -1035,6 +1035,7 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log 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 05f2d2c516..446c18bbd8 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
@@ -1035,6 +1035,7 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log 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 ee342928c8..cc7289f1fe 100644
--- a/sysdeps/unix/sysv/linux/sh/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sh/libm.abilist
@@ -766,4 +766,5 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log 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 558f214959..0dfc34b305 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
@@ -1042,6 +1042,7 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log 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 804044f527..f17165c5bd 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
@@ -1034,3 +1034,4 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log F
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
index 87cbb6ae13..d76f2b221d 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
@@ -1068,3 +1068,4 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log F
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
index 991d3bcaa2..fbf49ae82d 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
@@ -1068,3 +1068,4 @@ GLIBC_2.28 fmul F
GLIBC_2.28 fmull F
GLIBC_2.28 fsub F
GLIBC_2.28 fsubl F
+GLIBC_2.28 log F
diff --git a/sysdeps/x86_64/fpu/multiarch/e_log-avx.c b/sysdeps/x86_64/fpu/multiarch/e_log-avx.c
index b22a5767be..ddbf34cc32 100644
--- a/sysdeps/x86_64/fpu/multiarch/e_log-avx.c
+++ b/sysdeps/x86_64/fpu/multiarch/e_log-avx.c
@@ -1,4 +1,4 @@
-#define __ieee754_log __ieee754_log_avx
+#define __log __ieee754_log_avx
#define SECTION __attribute__ ((section (".text.avx")))
#include <sysdeps/ieee754/dbl-64/e_log.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/e_log-fma.c b/sysdeps/x86_64/fpu/multiarch/e_log-fma.c
index bce0ee03c2..7fb7e3b0fb 100644
--- a/sysdeps/x86_64/fpu/multiarch/e_log-fma.c
+++ b/sysdeps/x86_64/fpu/multiarch/e_log-fma.c
@@ -1,4 +1,4 @@
-#define __ieee754_log __ieee754_log_fma
+#define __log __ieee754_log_fma
#define SECTION __attribute__ ((section (".text.fma")))
#include <sysdeps/ieee754/dbl-64/e_log.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/e_log-fma4.c b/sysdeps/x86_64/fpu/multiarch/e_log-fma4.c
index f458f9c23c..a2c30f84fe 100644
--- a/sysdeps/x86_64/fpu/multiarch/e_log-fma4.c
+++ b/sysdeps/x86_64/fpu/multiarch/e_log-fma4.c
@@ -1,4 +1,4 @@
-#define __ieee754_log __ieee754_log_fma4
+#define __log __ieee754_log_fma4
#define SECTION __attribute__ ((section (".text.fma4")))
#include <sysdeps/ieee754/dbl-64/e_log.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/e_log.c b/sysdeps/x86_64/fpu/multiarch/e_log.c
index e0a1b02fae..0cd2072325 100644
--- a/sysdeps/x86_64/fpu/multiarch/e_log.c
+++ b/sysdeps/x86_64/fpu/multiarch/e_log.c
@@ -16,6 +16,8 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+#include <math.h>
+
extern double __redirect_ieee754_log (double);
#define SYMBOL_NAME ieee754_log
@@ -25,5 +27,5 @@ libc_ifunc_redirected (__redirect_ieee754_log, __ieee754_log,
IFUNC_SELECTOR ());
strong_alias (__ieee754_log, __log_finite)
-#define __ieee754_log __ieee754_log_sse2
+#define __log __ieee754_log_sse2
#include <sysdeps/ieee754/dbl-64/e_log.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/w_log.c b/sysdeps/x86_64/fpu/multiarch/w_log.c
new file mode 100644
index 0000000000..9b2b018711
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/w_log.c
@@ -0,0 +1 @@
+#include <sysdeps/../math/w_log.c>