Since gcc 8.3.0 generates SSE instructions into kernel code, the
kernel itself may raise FPU exceptions and/or corrupt user level FPU
contexts thereby. Both things are not feasible, and therefore, lazy FPU
switching becomes a no go for base-hw because we cannot avoid FPU
instructions because of the entanglement of base-hw, base, and the tool
chain (libgcc_eh.a).
issue #3365
This removes implementations of and also references to anonymous new and
delete operators from the libc implementation. As allocators for
new/delete Libc::Allocator instances are used, which (paradoxically) map
to libc malloc/free.
Also disable TS (task switch) flag in cr0 during kernel initialization,
so FPU faults are not raised. This became necessary since GCC lately
aggressively generates FPU instructions at arbitrary places and also at
early kernel-bootstrapping stages.
fixes#3365
GCC version 7 and above generate calls to __divmoddi for 64bit integer
division on 32-bit. Unfortunately, libgcc liberaries of older compilers
lack this symbol and are still in use by Debian/Ubuntu LTS at least.
* added global offset table relative loading for global symbols
* removed 'initial_sp' and 'initial_x0' because they are currently not
used on this platform. If required they are easy to resurrect.
issue #3260
The libc features support for SOCK_CLOEXEC now which gets set via
the type argument in 'libnl'. Since we are only interested in the
actual type, i.e. if it is SOCK_RAW, just ignore the flags.
Issue #3289.
* Adjust expected pow(-1/1, inf/-inf/nan) output to current libm
behavior (as in FreeBSD, glibc, and OpenLibm) and return 1 on
x86_64/x86_32/arm
* Add 'double float' outputs for ARM which are defined to float
issue #3289
This prevents
error copying "bin/libm.lib.so": no such file or directory
error copying "bin/posix.lib.so": no such file or directory
when running "make run/noux" from an empty build directory.
On some platforms (foc+pbxa9, hw+imx53_qsb_tz, hw+rpi) the default buffer size
is to much for the RAM available on the board. Thus, decrease the buffer size
and therefore the number of polls for these platforms only.
Fixes#3354
