Instead of compiling files with -fcommon, create an include file and declare
the 3 symbols that need to be common using an attribute. Put all the 3 symbol
definitions in libc in one place (initfini.c

Instead of compiling files with -fcommon, create an include file and declare
the 3 symbols that need to be common using an attribute. Put all the 3 symbol
definitions in libc in one place (initfini.c). Reviewed by joerg@

show more ...

Explicitly use -fcommon for globals shared between libc and CSU.

fix duplicated chunk from merge

Merge the [pgoyette-compat] branch

Specify NOLIBCSANITIZER in lib/csu

The low-level libraries in csu are used in non-sanitized code.

Disable MKSANITIZER in lib/csu

These low-level libraries are expected to be not touched by a sanitizer.
Every libc program not using sanitizers cannot work with sanitized csu.

MKCOMPAT fixes for when compat MACHINE_CPU != normal MACHINE_CPU

Retire USE_COMPILERCRTSTUFF=yes.

Add support for a NetBSD MARCH elf note to record the MACHINE_ARCH for
which a program was compiled.

Make all earm variants use earm.

Unbreak compat.

Allow USE_COMPILERCRTSTUFF=yes for platforms that use MACHINE_CPU !=
MACHINE_ARCH.

use of .PARSEDIR just doesn't work with .OBJDIR, replace with .CURDIR

Centralise USE_COMPILERCRTSTUFF.

PCC might need help.

Switch i386 and x86_64 to the new CRT layout. The crt0.c body is shared
between all platforms and a small assembler stub in crt0.S is used for
setting up the proper stack and whatever else MD needs.

Switch i386 and x86_64 to the new CRT layout. The crt0.c body is shared
between all platforms and a small assembler stub in crt0.S is used for
setting up the proper stack and whatever else MD needs.

Extract crti.S and crtn. from the old dot_init.h files. Prepare other
platforms that use the 6-argument form of __(_)start for this.

Rewrite the crtbegin and crtend modules in assembler to make them
compiler independent. Document the interface in README.

show more ...

delete all the a.out csu code.

look for ${CSU_MACHINE_ARCH}_elf directory first.

${MACHINE_ARCH} != "arm32" is always true now, so remove it from an if.

- Fix typo
- Wrap long line

use MACIHNE_CPU to determine architecture-dependent source code directory.
is use of exists(foo) safe enough?
TODO: many other places to fix

sh3 split

More trailing white space.

Oops, revert previous; thinko.

Go ahead and built c++rt0.o on all non-ELF platforms (i.e. including arm32;
the hacks to make this work have been committed).

Don't build c++rt.o if ELF.