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2e5d5dc936
To make <stdatomic.h> work on MIPS (and ARM) using GCC, we need to provide implementations of the __sync_*() functions. I already added these functions for 4 and 8 byte types to libcompiler-rt some time ago, based on top of <machine/atomic.h>. Unfortunately, <machine/atomic.h> only provides a subset of the features needed to implement <stdatomic.h>. This means that in some cases we had to do compare-and-exchange calls in loops, where a simple ll/sc would suffice. Also implement these functions for 1 and 2 byte types. MIPS only provides ll/sc instructions for 4 and 8 byte types, but this is of course no limitation. We can simply load 4 bytes and use some bitmask tricks to modify only the bytes affected. Discussed on: mips, arch Tested with: QEMU |
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files | ||
files.amd64 | ||
files.arm | ||
files.i386 | ||
files.ia64 | ||
files.mips | ||
files.pc98 | ||
files.powerpc | ||
files.sparc64 | ||
kern.mk | ||
kern.post.mk | ||
kern.pre.mk | ||
kmod_syms.awk | ||
kmod.mk | ||
ldscript.amd64 | ||
ldscript.arm | ||
ldscript.i386 | ||
ldscript.ia64 | ||
ldscript.mips | ||
ldscript.mips.cfe | ||
ldscript.mips.mips64 | ||
ldscript.mips.octeon1 | ||
ldscript.powerpc | ||
ldscript.powerpc64 | ||
ldscript.sparc64 | ||
Makefile.amd64 | ||
Makefile.arm | ||
Makefile.i386 | ||
Makefile.ia64 | ||
Makefile.mips | ||
Makefile.pc98 | ||
Makefile.powerpc | ||
Makefile.sparc64 | ||
makeLINT.mk | ||
makeLINT.sed | ||
newvers.sh | ||
NOTES | ||
options | ||
options.amd64 | ||
options.arm | ||
options.i386 | ||
options.ia64 | ||
options.mips | ||
options.pc98 | ||
options.powerpc | ||
options.sparc64 | ||
systags.sh | ||
WITHOUT_SOURCELESS | ||
WITHOUT_SOURCELESS_HOST | ||
WITHOUT_SOURCELESS_UCODE |