2b6ee34cf6
This is needed so that setting LD/XLD is not ignored when linking with $CC
instead of directly using $LD. Currently only clang accepts an absolute
path for -fuse-ld= (Clang 12+ will add a new --ld-path flag), so we now
warn when building with GCC and $LD != "ld" since that might result in the
wrong linker being used.
We have been setting XLD=/path/to/cheri/ld.lld in CheriBSD for a long time and
used a similar version of this patch to avoid linking with /usr/bin/ld.
This change is also required when building FreeBSD on an Ubuntu with Clang:
In that case we set XCC=/usr/lib/llvm-10/bin/clang and since
/usr/lib/llvm-10/bin/ does not contain a "ld" binary the build fails with
`clang: error: unable to execute command: Executable "ld" doesn't exist!`
unless we pass -fuse-ld=/usr/lib/llvm-10/bin/ld.lld.
This change passes -fuse-ld instead of copying ${XLD} to WOLRDTMP/bin/ld
since then we would have to ensure that this file does not exist while
building the bootstrap tools. The cross-linker might not be compatible with
the host linker (e.g. when building on macos: host-linker= Mach-O /usr/bin/ld,
cross-linker=LLVM ld.lld).
Reviewed By: brooks, emaste
Differential Revision: https://reviews.freebsd.org/D26055
|
||
|---|---|---|
| .. | ||
| colldef | ||
| ctypedef | ||
| dict | ||
| doc | ||
| dtrace | ||
| examples | ||
| i18n | ||
| keys | ||
| man | ||
| misc | ||
| mk | ||
| monetdef | ||
| msgdef | ||
| numericdef | ||
| security | ||
| sendmail | ||
| skel | ||
| snmp | ||
| syscons | ||
| tabset | ||
| termcap | ||
| tests | ||
| timedef | ||
| vt | ||
| zoneinfo | ||
| Makefile | ||
| Makefile.inc | ||