CVS commit: src/lib/libc

["Nia Alarie" <nia%netbsd.org@localhost>]

Module Name:    src
Committed By:   nia
Date:           Wed Oct  5 10:28:19 UTC 2022

Modified Files:
        src/lib/libc/arch/aarch64/softfloat: qp.c
        src/lib/libc/compiler_rt: Makefile.inc

Log Message:
libc: switch aarch64 to use softfloat functions from compiler_rt

The old definitions in qp.c being all grouped together in one file
causes problems when static linking with libgcc (i.e. cc --static-libgcc)
due to functions like __trunctfdf2 conflicting with libgcc, as seen in
PR 57021

We can also add some missing functions like __fixdfti for converting
a double to an int128_t, the lack of which is currently preventing webkit
from linking on aarch64, as seen in PR 57022

Unclear to me if libc is the right place for these functions, but
we can avoid breaking compatibility right now and maintain the status
quo while avoiding some obvious immediate problems.
nm output for libc shows no functions being removed by this change.


To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/lib/libc/arch/aarch64/softfloat/qp.c
cvs rdiff -u -r1.40 -r1.41 src/lib/libc/compiler_rt/Makefile.inc

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.