riscv/musl - musl - Gitea: Git with a cup of tea

History

Rich Felker 4918c2bb20 fix detection of arm hardfloat it turns out that __SOFTFP__ does not indicate the ABI in use but rather that fpu instructions are not to be used at all. this is specified in ARM's documentation so I'm unclear on how I previously got the wrong idea. unfortunately, this resulted in the 0.9.12 release producing a dynamic linker with the wrong name. fortunately, there do not yet seem to be any public toolchain builds using the wrong name. the __ARM_PCS_VFP macro does not seem to be official from ARM, and in fact it was missing from the very earliest gcc versions (around 4.5.x) that added -mfloat-abi=hard. it would be possible on such versions to perform some ugly linker-based tests instead in hopes that the linker will reject ABI-mismatching object files, if there is demand for supporting such versions. I would probably prefer to document which versions are broken and warn users to manually add -D__ARM_PCS_VFP if using such a version. there's definitely an argument to be made that the fenv macros should be exposed even in -mfloat-abi=softfp mode. for now, I have chosen not to expose them in this case, since the math library will not necessarily have the capability to raise exceptions (it depends on the CFLAGS used to compile it), and since exceptions are officially excluded from the ARM EABI, which the plain "arm" arch aims to follow.		13 years ago
..
bits	fix detection of arm hardfloat	13 years ago
src	add some ARM EABI-specific exception handling infrastructure	13 years ago
atomic.h	add missing a_or_l to atomic.h for non-x86 archs	13 years ago
crt_arch.h	add function types to arm crt assembly	13 years ago
pthread_arch.h	add support for TLS variant I, presently needed for arm and mips	14 years ago
reloc.h	disable legacy init/fini processing on ARM	13 years ago
syscall_arch.h	remove __SYSCALL_SSLEN arch macro in favor of using public _NSIG	13 years ago