https://issues.dlang.org/show_bug.cgi?id=22173
Issue ID: 22173
Summary: Target functions called through PLT in thunks
Product: D
Version: D2
Hardware: x86
OS: Linux
Status: NEW
Severity: normal
Priority: P1
Component: dmd
Assignee: [email protected]
Reporter: [email protected]
Inside _THUNKs, DMD calls functions through PLT.
---
sub $0x8,%eax
jmp 0xf7f06970 <_D5mydll1C3fooMFCQp1IZCQvQr@plt>
---
This is bad because it means the GOT needs to be loaded inside EBX before the
JMP, else a segfault occurs (see issue 9729, and issue 22170).
GDC instead calls the aliased symbol directly:
---
subl $0x8,0x4(%esp)
jmp 0xf7f34ffb <_D5mydll1C3fooMFCQp1IZCQvQr>
---
DMD 32-bit PIC should be more like GDC 32-bit PIC to avoid this trap.
--
