[PATCH] D45182: Define TrapInst for ppc64

[Rafael Avila de Espindola via Phabricator via llvm-commits]

espindola updated this revision to Diff 140689.
espindola added a comment.

Use a new test file for ppc64.


https://reviews.llvm.org/D45182

Files:
  ELF/Arch/PPC64.cpp
  test/ELF/fill-trap-ppc.s


Index: test/ELF/fill-trap-ppc.s
===================================================================
--- /dev/null
+++ test/ELF/fill-trap-ppc.s
@@ -0,0 +1,30 @@
+# REQUIRES: ppc
+
+# RUN: llvm-mc -filetype=obj -triple=powerpc64le-linux %s -o %t.o
+# RUN: ld.lld %t.o -o %t.ppc64le
+# RUN: llvm-readobj -program-headers %t.ppc64le | FileCheck %s
+# RUN: od -Ax -t x4 -N16 -j0x10ff0 %t.ppc64le | FileCheck %s -check-prefix=FILL
+
+# RUN: llvm-mc -filetype=obj -triple=powerpc64-linux %s -o %t.o
+# RUN: ld.lld %t.o -o %t.ppc64
+# RUN: llvm-readobj -program-headers %t.ppc64 | FileCheck %s
+# RUN: od -Ax -t x4 -N16 -j0x10ff0 %t.ppc64 | FileCheck %s -check-prefix=FILL
+
+# CHECK: ProgramHeader {
+# CHECK:   Type: PT_LOAD
+# CHECK:        Offset: 0x10000{{$}}
+# CHECK-NEXT:   VirtualAddress:
+# CHECK-NEXT:   PhysicalAddress:
+# CHECK-NEXT:   FileSize: 4096
+# CHECK-NEXT:   MemSize:
+# CHECK-NEXT:   Flags [
+# CHECK-NEXT:     PF_R
+# CHECK-NEXT:     PF_X
+# CHECK-NEXT:   ]
+
+## Check that executable page is filled with traps at its end.
+# FILL: 010ff0 7fe00008 7fe00008 7fe00008 7fe00008
+
+.globl _start
+_start:
+  nop
Index: ELF/Arch/PPC64.cpp
===================================================================
--- ELF/Arch/PPC64.cpp
+++ ELF/Arch/PPC64.cpp
@@ -93,6 +93,8 @@
   // And because the lowest non-zero 256M boundary is 0x10000000, PPC64 linkers
   // use 0x10000000 as the starting address.
   DefaultImageBase = 0x10000000;
+
+  TrapInstr = 0x7fe00008;
 }
 
 static uint32_t getEFlags(InputFile *File) {


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