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Keep symbols passed by -init and -fini
Previously, symbols passed by -init and -fini look as if they are not referenced by anyone, and the LTO might eliminate them. This patch fixes the issue. Fixes a bug reported in https://bugs.llvm.org/show_bug.cgi?id=43927 Differential Revision: https://reviews.llvm.org/D69985
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Original file line number | Diff line number | Diff line change |
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; REQUIRES: x86 | ||
; RUN: llvm-as %s -o %t.o | ||
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;; | ||
;; Verify that symbols given by -init and -fini are preserved and | ||
;; DT_INIT/DT_FINI are created. | ||
;; | ||
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; RUN: ld.lld -o %t.exe -pie %t.o | ||
; RUN: llvm-nm %t.exe | FileCheck -check-prefix=TEST1 --allow-empty %s | ||
; RUN: llvm-readelf -d %t.exe | FileCheck -check-prefix=TEST2 %s | ||
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; TEST1-NOT: foo | ||
; TEST1-NOT: bar | ||
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; TEST2-NOT: INIT | ||
; TEST2-NOT: FINI | ||
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; RUN: ld.lld -o %t.exe -pie -init=foo -fini=bar %t.o | ||
; RUN: llvm-nm %t.exe | FileCheck -check-prefix=TEST3 %s | ||
; RUN: llvm-readelf -d %t.exe | FileCheck -check-prefix=TEST4 %s | ||
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; TEST3: bar | ||
; TEST3: foo | ||
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; TEST4: INIT | ||
; TEST4: FINI | ||
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target triple = "x86_64-unknown-linux-gnu" | ||
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" | ||
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define void @foo() { | ||
ret void | ||
} | ||
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define void @bar() { | ||
ret void | ||
} |