• via Digitalmars-d-bugs (57/57) Oct 09 2015 https://issues.dlang.org/show_bug.cgi?id=15180

via Digitalmars-d-bugs <digitalmars-d-bugs puremagic.com> writes:

https://issues.dlang.org/show_bug.cgi?id=15180

          Issue ID: 15180
           Summary: [REG2.069.0-b1] Segfault with empty struct used as UDA
           Product: D
           Version: D2
          Hardware: x86
                OS: Mac OS X
            Status: NEW
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: doob me.com

The following code will result in "Segmentation fault: 11" on OS X:

struct foo { }
 foo bar () { }

Backtrace:

Process 73487 launched:
'/Users/jacob/.dvm/compilers/dmd-2.069.0-b1/osx/bin/dmd' (x86_64)
Process 73487 stopped

dmd`objc_isUdaSelector(StructDeclaration*) + 9, queue =
'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x8)

dmd`objc_isUdaSelector(StructDeclaration*):
->  0x100161921 <+9>:  movq   0x8(%rdi), %rax
    0x100161925 <+13>: leaq   0x1b1dec(%rip), %rcx      ; Id::udaSelector
    0x10016192c <+20>: cmpq   (%rcx), %rax
    0x10016192f <+23>: jne    0x100161938               ; <+32>
(lldb) bt

dmd`objc_isUdaSelector(StructDeclaration*) + 9, queue =
'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x8)


dmd`objc_FuncDeclaration_semantic_setSelector(FuncDeclaration*, Scope*) + 175



dmd`UserAttributeDeclaration::semantic2(Scope*) + 94


29045


dmd`D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZ9__lambda1MFZv + 40

dmd`D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ7tryExecMFMDFZvZv + 45

dmd`D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZv + 45

dmd`D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ7tryExecMFMDFZvZv + 45





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