http://llvm.org/bugs/show_bug.cgi?id=11981
Bug #: 11981
Summary: ARM backend does not emit TLS ELF attribute for
undefined TLS symbols
Product: libraries
Version: trunk
Platform: PC
OS/Version: All
Status: NEW
Severity: normal
Priority: P
Component: Backend: ARM
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 8039
--> http://llvm.org/bugs/attachment.cgi?id=8039
tls bitcode example
Create file foo.ll:
@foo = external thread_local global i32
define i32 @bar() nounwind {
entry:
%0 = load i32* @foo, align 4
ret i32 %0
}
Compile for ARM:
$ llc -march=arm foo.ll -o foo.o -filetype=obj
readelf reports:
8: 00000000 0 NOTYPE GLOBAL DEFAULT UND foo
The type of foo should be TLS, not NOTYPE.
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