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. The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty w_log.c and enabled for targets with their own log implementation by including math/w_log.c. The compatibility symbol version still uses 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 logl was an alias of log, now it points to the compatibility symbol with the wrapper, because it 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 __log_finite symbol is now an alias of log. Both __log_finite and log 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. Tested with build-many-glibcs.py. * math/Versions (GLIBC_2.29): 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-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_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.
author: Szabolcs Nagy <szabolcs.nagy@arm.com> 2018-04-20 18:06:44 +0100
committer: Szabolcs Nagy <szabolcs.nagy@arm.com> 2018-11-21 09:56:27 +0000
commit: f29b7c492d8a06581cf1b573b7e5907daa8c139c (patch)
tree: 8e78ab43bba9f0fa5f0648b97c7c40d2f37eb22e /sysdeps/unix/sysv
parent: c20a10561adab4aeb544e777cbb86679bd5f876d (diff)
download: glibc-f29b7c492d8a06581cf1b573b7e5907daa8c139c.zip
glibc-f29b7c492d8a06581cf1b573b7e5907daa8c139c.tar.gz
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23 files changed, 23 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/aarch64/libm.abilist b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
index cfb8f7d..6785ac6 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libm.abilist
@@ -1034,3 +1034,4 @@ GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 log F
diff --git a/sysdeps/unix/sysv/linux/alpha/libm.abilist b/sysdeps/unix/sysv/linux/alpha/libm.abilist
index 8a7f92f..132ea00 100644
--- a/sysdeps/unix/sysv/linux/alpha/libm.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libm.abilist
@@ -1045,6 +1045,7 @@ GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 a4a2c9b..45a2337 100644
--- a/sysdeps/unix/sysv/linux/arm/libm.abilist
+++ b/sysdeps/unix/sysv/linux/arm/libm.abilist
@@ -455,6 +455,7 @@ GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 c665d65..b0689ff 100644
--- a/sysdeps/unix/sysv/linux/hppa/libm.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/libm.abilist
@@ -766,4 +766,5 @@ GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 6728695..3afd304 100644
--- a/sysdeps/unix/sysv/linux/i386/libm.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libm.abilist
@@ -1077,3 +1077,4 @@ GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 log F
diff --git a/sysdeps/unix/sysv/linux/ia64/libm.abilist b/sysdeps/unix/sysv/linux/ia64/libm.abilist
index 3a5d2fb..637fd15 100644
--- a/sysdeps/unix/sysv/linux/ia64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/libm.abilist
@@ -1007,3 +1007,4 @@ GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 log F
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
index a4a2c9b..45a2337 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 84a580a..b1689c2 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 log F
diff --git a/sysdeps/unix/sysv/linux/microblaze/libm.abilist b/sysdeps/unix/sysv/linux/microblaze/libm.abilist
index f2c3143..ae59dfb 100644
--- a/sysdeps/unix/sysv/linux/microblaze/libm.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/libm.abilist
@@ -767,3 +767,4 @@ GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 log F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
index 7ecaeea..38c6651 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 c3679e8..09777c7 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 log F
diff --git a/sysdeps/unix/sysv/linux/nios2/libm.abilist b/sysdeps/unix/sysv/linux/nios2/libm.abilist
index 2964682..59fc049 100644
--- a/sysdeps/unix/sysv/linux/nios2/libm.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/libm.abilist
@@ -767,3 +767,4 @@ GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 f7ceb78..7788f76 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 7e1c1b5..cae3604 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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-le.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
index de18417..732825e 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
@@ -1078,3 +1078,4 @@ GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 log F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
index 6dd35db..59f083d 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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/s390/s390-32/libm.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
index b33b214..5a68b27 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 567059b..364f7e6 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 baea131..489f34d 100644
--- a/sysdeps/unix/sysv/linux/sh/libm.abilist
+++ b/sysdeps/unix/sysv/linux/sh/libm.abilist
@@ -766,4 +766,5 @@ GLIBC_2.28 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 7249346..288986f 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 629fb08..11fb7e4 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 ac70310..9fd399d 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 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 55098e0..bbea575 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 fsub F
 GLIBC_2.28 fsubl F
 GLIBC_2.29 exp F
 GLIBC_2.29 exp2 F
+GLIBC_2.29 log F
author	Szabolcs Nagy <szabolcs.nagy@arm.com>	2018-04-20 18:06:44 +0100
committer	Szabolcs Nagy <szabolcs.nagy@arm.com>	2018-11-21 09:56:27 +0000
commit	f29b7c492d8a06581cf1b573b7e5907daa8c139c (patch)
tree	8e78ab43bba9f0fa5f0648b97c7c40d2f37eb22e /sysdeps/unix/sysv
parent	c20a10561adab4aeb544e777cbb86679bd5f876d (diff)
download	glibc-f29b7c492d8a06581cf1b573b7e5907daa8c139c.zip glibc-f29b7c492d8a06581cf1b573b7e5907daa8c139c.tar.gz glibc-f29b7c492d8a06581cf1b573b7e5907daa8c139c.tar.bz2