On Friday, 3 March 2023 at 01:11:06 UTC, Vladimir Panteleev wrote:
On Friday, 3 March 2023 at 01:07:07 UTC, ryuukk_ wrote:
I couldn't figure out dustmite, so i started from 0 and
managed to hit something:
https://github.com/ryuukk/dmd_bug
``Assertion failed: array index out of bounds, file
game\app.d, line 5``
Wich indicates probably TLS problem?
Yeah... `rt.a.stuffs` is a TLS variable. The D runtime manages
TLS. `extern(C) main` bypasses D runtime initialization.
I have some questions:
1. why does it work with LDC?
2. why does it work with DMD when build/link in 2 step?
3. why it doesn't work when DMD is invoked once for build/link
4. is this a bug in DMD or my code is wrong?
5. if it's wrong, then why does it compile/no error?
```sh
#!/usr/bin/env bash
set -e
build_dmd() {
echo "build dmd"
dmd \
-debug -g \
-m64 -vcolumns -betterC -w -i -i=-std -i=-core \
-Igame \
-Istuff/ \
stuff/rt/object.d \
game/app.d \
-of=game.exe
}
build_ldc() {
echo "build ldc"
ldc2 \
-d-debug -g \
-m64 -vcolumns -betterC -w -i -i=-std -i=-core \
-Igame \
-Istuff/ \
stuff/rt/object.d \
game/app.d \
-of=game.exe
}
build_dmd_and_link() {
echo "build dmd and link (2step)"
dmd \
-debug -g -c \
-m64 -vcolumns -betterC -w -i -i=-std -i=-core \
-Igame \
-Istuff/ \
stuff/rt/object.d \
game/app.d \
-of=game.obj
dmd \
-debug -g \
-m64 -vcolumns -betterC -w -i -i=-std -i=-core \
-Igame \
-Istuff/ \
game.obj \
-of=game.exe
}
build_ldc
./game.exe
rm game.obj game.exe
build_dmd_and_link
./game.exe
rm game.obj game.exe
build_dmd
./game.exe
rm game.obj game.exe
```
