On Monday, 26 March 2018 at 22:13:02 UTC, Johan Engelen wrote:
On Monday, 26 March 2018 at 22:07:49 UTC, Nordlöw wrote:
When I try build my application using LDC and -flto=thin it
fails in the final linking
You must also pass `-flto=thin` during linking (a special
plugin is needed for LTO, and LDC will only pass the plugin to
the linker when `-flto=` is specified).
I couldn't see `-flto=thin` in your link command, so I suspect
that will fix it.
- Johan
I added `lflags` to my dub configuration as
buildType "release-nobounds-lto" {
buildOptions "releaseMode" "optimize" "inline"
"noBoundsCheck" # TODO -march=native -ffast-math
dflags "-mcpu=native" "-O3" "-flto=thin"
platform="posix-ldc"
lflags "-flto=thin" platform="posix-ldc"
}
forwarded as `-L-flto=thin` but still errors as
Linking...
ldmd2
-of.dub/build/application-release-nobounds-lto-linux.posix-x86_64-ldc_2078-F2904BE3C4DA237C077E5C2B0B23442E/knetquery .dub/build/application-release-nobounds-lto-linux.posix-x86_64-ldc_2078-F2904BE3C4DA237C077E5C2B0B23442E/knetquery.o ../../.dub/packages/gmp-d-master/gmp-d/.dub/build/library-release-nobounds-lto-linux.posix-x86_64-ldc_2078-B287F67CE5FF6145BC229790CFB09607/libgmp-d.a phobos-next/.dub/build/library-release-nobounds-lto-linux.posix-x86_64-ldc_2078-F0F2FDB01B8401C04D657BCC145D46A5/libknet_phobos-next.a -L--no-as-needed -L-flto=thin -L-lzstd -L-lgmp -L-lc -L-lreadline -L-lz -L-lbz2
/usr/bin/ld: error:
.dub/build/application-release-nobounds-lto-linux.posix-x86_64-ldc_2078-F2904BE3C4DA237C077E5C2B0B23442E/knetquery.o:1:3: invalid character
/usr/bin/ld: error:
.dub/build/application-release-nobounds-lto-linux.posix-x86_64-ldc_2078-F2904BE3C4DA237C077E5C2B0B23442E/knetquery.o:1:3: syntax error, unexpected $end
/usr/bin/ld: error:
.dub/build/application-release-nobounds-lto-linux.posix-x86_64-ldc_2078-F2904BE3C4DA237C077E5C2B0B23442E/knetquery.o: not an object or archive
/usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/Scrt1.o:function
_start: error: undefined reference to 'main'
collect2: error: ld returned 1 exit status
Error: /usr/bin/gcc failed with status: 1
FAIL
.dub/build/application-release-nobounds-lto-linux.posix-x86_64-ldc_2078-F2904BE3C4DA237C077E5C2B0B23442E/ knetquery executable
ldmd2 failed with exit code 1.
