PR/57022 CVS commit: src/lib/libc

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

The following reply was made to PR toolchain/57022; it has been noted by GNATS.

From: "Nia Alarie" <nia%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/57022 CVS commit: src/lib/libc
Date: Wed, 5 Oct 2022 10:28:19 +0000

 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.