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glibc/sysdeps/powerpc
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Matheus Castanho 1c252f0e7e powerpc: Fix feraiseexcept and feclearexcept macros 
A recent change to fenvinline.h modified the check if __e is a
a power of 2 inside feraiseexcept and feclearexcept macros.  It
introduced the use of the powerof2 macro but also removed the
if statement checking whether __e != 0 before issuing an mtfsb*
instruction.  This is problematic because powerof2 (0) evaluates
to 1 and without the removed if __e is allowed to be 0 when
__builtin_clz is called.  In that case the value 32 is passed
to __MTFSB*, which is invalid.

This commit uses __builtin_popcount instead of powerof2 to fix this
issue and avoid the extra check for __e != 0.  This was the approach
used by the initial versions of that previous patch.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
2020-03-06 11:10:12 -03:00
..
bits powerpc: Fix feraiseexcept and feclearexcept macros 2020-03-06 11:10:12 -03:00
fpu Add libm_alias_finite for _finite symbols 2020-01-03 10:02:04 -03:00
nofpu linux: Remove INTERNAL_SYSCALL_DECL 2020-02-14 21:12:45 -03:00
nptl Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
power4 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
power6 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
powerpc32 Fix array overflow in backtrace on PowerPC (bug 25423) 2020-01-21 15:26:57 +01:00
powerpc64 Fix array overflow in backtrace on PowerPC (bug 25423) 2020-01-21 15:26:57 +01:00
sys/platform Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
abort-instr.h
atomic-machine.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
cpu-features.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
cpu-features.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-procinfo.c powerpc: Move cache line size to rtld_global_ro 2020-01-17 09:05:03 -03:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-tls.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-tls.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-tunables.list Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
elf-initfini.h Introduce <elf-initfini.h> and ELF_INITFINI for all architectures 2020-02-18 15:12:25 +01:00
ffs.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
fpu_control.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
gccframe.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hwcapinfo.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
hwcapinfo.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
ifunc-sel.h Fix powerpc ifunc-sel.h build for -Os. 2018-03-02 22:27:56 +00:00
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
ldsodefs.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
libc-tls.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
locale-defines.sym
longjmp.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Makefile powerpc: Move cache line size to rtld_global_ro 2020-01-17 09:05:03 -03:00
math-tests-snan-cast.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
memusage.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
mod-cache-ppc.c powerpc: Move cache line size to rtld_global_ro 2020-01-17 09:05:03 -03:00
mod-tlsopt-powerpc.c tst-tlsopt-powerpc as a shared lib 2017-08-03 15:39:21 +09:30
mp_clz_tab.c
novmx-longjmp.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
novmx-sigjmp.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
novmxsetjmp.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
preconfigure Remove support for PowerPC SPE extension (powerpc*-*-*gnuspe*). 2019-05-22 10:05:40 -04:00
rtld-global-offsets.sym powerpc: Move cache line size to rtld_global_ro 2020-01-17 09:05:03 -03:00
sched_cpucount.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sigjmp.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sotruss-lib.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
stackinfo.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
test-arith.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
test-arithf.c
test-get_hwcap-static.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
test-get_hwcap.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
test-gettimebase.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tls-macros.h
tst-cache-ppc-static-dlopen.c powerpc: Move cache line size to rtld_global_ro 2020-01-17 09:05:03 -03:00
tst-cache-ppc-static.c powerpc: Move cache line size to rtld_global_ro 2020-01-17 09:05:03 -03:00
tst-cache-ppc.c powerpc: Move cache line size to rtld_global_ro 2020-01-17 09:05:03 -03:00
tst-set_ppr.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-stack-align.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-tlsifunc-static.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-tlsifunc.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-tlsopt-powerpc.c tst-tlsopt-powerpc as a shared lib 2017-08-03 15:39:21 +09:30
Versions Add femode_t functions. 2016-09-07 16:40:09 +00:00