diff lld/test/ELF/aarch64-combined-dynrel.s @ 150:1d019706d866

LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
parents
children c4bab56944e8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lld/test/ELF/aarch64-combined-dynrel.s	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,41 @@
+// REQUIRES: AArch64
+// RUN: llvm-mc --triple=aarch64-linux-gnu -filetype=obj -o %t.o %s
+// RUN: echo "SECTIONS { \
+// RUN:         .text : { *(.text) } \
+// RUN:         .rela.dyn : { *(.rela.dyn) *(.rela.plt) } \
+// RUN: } " > %t.script
+// RUN: ld.lld %t.o -o %t.so --shared --script %t.script
+// RUN: llvm-readobj --section-headers --dynamic-table %t.so | FileCheck %s
+
+// The linker script above combines the .rela.dyn and .rela.plt into a single
+// table. ELF is clear that the DT_PLTRELSZ should match the subset of
+// relocations that is associated with the PLT. It is less clear about what
+// the value of DT_RELASZ should be. ELF implies that it should be the size
+// of the single table so that DT_RELASZ includes DT_PLTRELSZ. The loader in
+// glibc permits this as long as .rela.plt comes after .rela.dyn in the
+// combined table.
+ .text
+ .globl func
+ .type func, %function
+ .globl foo
+ .type foo, %object
+
+ .globl _start
+ .type _start, %function
+_start:
+ bl func
+ adrp    x8, :got:foo
+ ldr     x8, [x8, :got_lo12:foo]
+ ret
+
+// CHECK:     Name: .rela.dyn
+// CHECK-NEXT:         Type: SHT_RELA
+// CHECK-NEXT:     Flags [
+// CHECK-NEXT:       SHF_ALLOC
+// CHECK-NEXT:     ]
+// CHECK-NEXT:     Address:
+// CHECK-NEXT:     Offset:
+// CHECK-NEXT:     Size: 48
+
+// CHECK:  0x0000000000000008 RELASZ               48
+// CHECK:  0x0000000000000002 PLTRELSZ             24