[Issue 24545] New: Problems with m32 mode on Linux
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Wed May 8 00:34:11 UTC 2024
https://issues.dlang.org/show_bug.cgi?id=24545
Issue ID: 24545
Summary: Problems with m32 mode on Linux
Product: D
Version: D2
Hardware: x86
OS: Linux
Status: NEW
Severity: normal
Priority: P1
Component: dmd
Assignee: nobody at puremagic.com
Reporter: erikas.aubade at gmail.com
Created attachment 1913
--> https://issues.dlang.org/attachment.cgi?id=1913&action=edit
Minimal example to cause a segfault with bindbc. Execute with dub run --single
sdlcrash.d --compiler=dmd --arch=x86
There seems to be some sort of weirdness with the output generated by DMD in
m32 mode.
I initially stumbled on the problem while trying to use bindbc-sdl in dynamic
mode--attempting to load the DLL causes a segfault. I've attached a minimal
testcase to illustrate this, and can be executed with
dub run --single sdlcrash.d --compiler=dmd --arch=x86
This problem doesn't happen in x86_64 mode, or with LDC or GDC in x86 mode.
Furthermore, it generates some linker warnings about relocations in read-only
sections and creating DT_TEXTREL in a PIE. These warnings seem to be generated
with code I feed the compiler, even a trivial hello world--which I'm attaching.
The hello world example does not segfault, however.
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