diff options
| author | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2018-06-27 16:29:24 +0100 |
|---|---|---|
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2018-11-21 09:57:21 +0000 |
| commit | 718d6542f2c0e4c8ec65453c1df6612768d6ef00 (patch) | |
| tree | 9b42514c60e10fea89b15fe792c5c3bdf54b26d0 /sysdeps/unix/sysv | |
| parent | f29b7c492d8a06581cf1b573b7e5907daa8c139c (diff) | |
| download | glibc-718d6542f2c0e4c8ec65453c1df6612768d6ef00.tar.gz glibc-718d6542f2c0e4c8ec65453c1df6612768d6ef00.tar.xz glibc-718d6542f2c0e4c8ec65453c1df6612768d6ef00.zip | |
Remove the error handling wrapper from log2
Introduce new log2 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_log2.c and enabled for targets with their own log2 implementation by including math/w_log2.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 log2l was an alias of log2, 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 __log2_finite symbol is now an alias of log2. Both __log2_finite and log2 set errno and thus not const functions. The ia64 asm is changed so the compat and new symbol versions map to the same address. Tested with build-many-glibcs.py. * math/Versions (GLIBC_2.29): Add log2. * math/w_log2_compat.c (__log2_compat): Change to versioned compat symbol. * math/w_log2.c: New file. * sysdeps/i386/fpu/w_log2.c: New file. * sysdeps/ia64/fpu/e_log2.S: Add versioned symbols. * sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Rename to __log2 and add necessary aliases. * sysdeps/ieee754/dbl-64/w_log2.c: New file. * sysdeps/m68k/m680x0/fpu/w_log2.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.
Diffstat (limited to 'sysdeps/unix/sysv')
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 6785ac6aa2..c01ff24dfe 100644 --- a/sysdeps/unix/sysv/linux/aarch64/libm.abilist +++ b/sysdeps/unix/sysv/linux/aarch64/libm.abilist @@ -1035,3 +1035,4 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 F diff --git a/sysdeps/unix/sysv/linux/alpha/libm.abilist b/sysdeps/unix/sysv/linux/alpha/libm.abilist index 132ea00288..f5ec8742dc 100644 --- a/sysdeps/unix/sysv/linux/alpha/libm.abilist +++ b/sysdeps/unix/sysv/linux/alpha/libm.abilist @@ -1046,6 +1046,7 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 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 45a233785d..9b7d87b329 100644 --- a/sysdeps/unix/sysv/linux/arm/libm.abilist +++ b/sysdeps/unix/sysv/linux/arm/libm.abilist @@ -456,6 +456,7 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 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 b0689ff6c5..d193f99561 100644 --- a/sysdeps/unix/sysv/linux/hppa/libm.abilist +++ b/sysdeps/unix/sysv/linux/hppa/libm.abilist @@ -767,4 +767,5 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 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 3afd304881..eae2c55d38 100644 --- a/sysdeps/unix/sysv/linux/i386/libm.abilist +++ b/sysdeps/unix/sysv/linux/i386/libm.abilist @@ -1078,3 +1078,4 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 F diff --git a/sysdeps/unix/sysv/linux/ia64/libm.abilist b/sysdeps/unix/sysv/linux/ia64/libm.abilist index 637fd150c2..9796e8d37b 100644 --- a/sysdeps/unix/sysv/linux/ia64/libm.abilist +++ b/sysdeps/unix/sysv/linux/ia64/libm.abilist @@ -1008,3 +1008,4 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 F diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist index 45a233785d..9b7d87b329 100644 --- a/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist +++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist @@ -456,6 +456,7 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 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 b1689c2e65..f73ad1a35c 100644 --- a/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist +++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist @@ -807,3 +807,4 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 F diff --git a/sysdeps/unix/sysv/linux/microblaze/libm.abilist b/sysdeps/unix/sysv/linux/microblaze/libm.abilist index ae59dfbd66..dcb7dbba91 100644 --- a/sysdeps/unix/sysv/linux/microblaze/libm.abilist +++ b/sysdeps/unix/sysv/linux/microblaze/libm.abilist @@ -768,3 +768,4 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 F diff --git a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist index 38c665147a..1146e2d6fd 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips32/libm.abilist @@ -767,4 +767,5 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 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 09777c71c7..d9c830da42 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips64/libm.abilist @@ -1035,3 +1035,4 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 F diff --git a/sysdeps/unix/sysv/linux/nios2/libm.abilist b/sysdeps/unix/sysv/linux/nios2/libm.abilist index 59fc049b86..0902ca01f2 100644 --- a/sysdeps/unix/sysv/linux/nios2/libm.abilist +++ b/sysdeps/unix/sysv/linux/nios2/libm.abilist @@ -768,3 +768,4 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist index 7788f76e81..3e9e5e75fd 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist @@ -813,6 +813,7 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 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 cae3604a00..7a3c6be1f4 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist @@ -812,6 +812,7 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 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 732825e015..d50c82c7c8 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist @@ -1079,3 +1079,4 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist index 59f083dda7..cbf2ad3ca6 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist @@ -491,6 +491,7 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 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 5a68b2701b..382455c9cf 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist @@ -1036,6 +1036,7 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 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 364f7e63d4..92b794bf12 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist @@ -1036,6 +1036,7 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 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 489f34db57..3320f1403a 100644 --- a/sysdeps/unix/sysv/linux/sh/libm.abilist +++ b/sysdeps/unix/sysv/linux/sh/libm.abilist @@ -767,4 +767,5 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 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 288986f228..2a10a0ffb9 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist @@ -1043,6 +1043,7 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 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 11fb7e4597..ebbc58da91 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist @@ -1035,3 +1035,4 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 F diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist index 9fd399d31a..3e02619df9 100644 --- a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist @@ -1069,3 +1069,4 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 F diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist index bbea57551d..03cd62fd6f 100644 --- a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist @@ -1069,3 +1069,4 @@ GLIBC_2.28 fsubl F GLIBC_2.29 exp F GLIBC_2.29 exp2 F GLIBC_2.29 log F +GLIBC_2.29 log2 F |