================
@@ -0,0 +1,37 @@
+# REQUIRES: x86
+# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
+# RUN: llvm-mc -filetype=obj -triple=x86_64 %p/Inputs/shared.s -o %t2.o
+# RUN: ld.lld -shared -soname=t2 %t2.o -o %t2.so
+
+## -z mark-plt emits DT_X86_64_PLT, DT_X86_64_PLTSZ, DT_X86_64_PLTENT.
+## PLT layout: 16-byte header + 1 entry * 16 bytes = 0x20 bytes total.
+# RUN: ld.lld %t.o %t2.so -z mark-plt -z now -o %t
+# RUN: llvm-readelf --dynamic-table %t | FileCheck %s --check-prefix=MARK
+# RUN: llvm-readelf --relocs %t | FileCheck %s --check-prefix=RELA
+
+## Without -z mark-plt: no tags and zero addend on JUMP_SLOT.
+# RUN: ld.lld %t.o %t2.so -z now -o %t.nomark
+# RUN: llvm-readelf --dynamic-table %t.nomark | FileCheck %s
--check-prefix=NOMARK
+# RUN: llvm-readelf --relocs %t.nomark | FileCheck %s --check-prefix=NORELA
+
+## -z mark-plt also works for shared libraries.
+# RUN: ld.lld -shared %t.o %t2.so -z mark-plt -z now -o %t.so
+# RUN: llvm-readelf --dynamic-table %t.so | FileCheck %s --check-prefix=MARK
+
+# MARK: 0x0000000070000000 (X86_64_PLT) {{0x[0-9a-f]+}}
+# MARK: 0x0000000070000001 (X86_64_PLTSZ) 0x20
+# MARK: 0x0000000070000003 (X86_64_PLTENT) 0x10
+
+# NOMARK-NOT: (X86_64_PLT)
+# NOMARK-NOT: (X86_64_PLTSZ)
+# NOMARK-NOT: (X86_64_PLTENT)
+
+## With -z mark-plt, R_X86_64_JUMP_SLOT addend is the PLT entry VA (non-zero).
+# RELA: R_X86_64_JUMP_SLOT {{.*}} bar + {{[1-9a-f][0-9a-f]+}}
----------------
MaskRay wrote:
Should test the addend matches the PLT entry address. You can use `llvm-objdump
-d -R` to dump the PLT entry and the dynamic relocation.
https://github.com/llvm/llvm-project/pull/206002
_______________________________________________
lldb-commits mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
