[PATCH] D45182: Define TrapInst for ppc64

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

espindola created this revision.
espindola added reviewers: sfertile, ruiu.
Herald added subscribers: kbarton, arichardson, nemanjai, emaste.

This is nice for testing since it is the first TrapInst whose bytes are not all the same.


https://reviews.llvm.org/D45182

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


Index: test/ELF/fill-trap.s
===================================================================
--- test/ELF/fill-trap.s
+++ test/ELF/fill-trap.s
@@ -1,13 +1,25 @@
-# REQUIRES: x86
+# REQUIRES: x86, ppc
 
 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
 # RUN: ld.lld %t -o %t2
-# RUN: llvm-readobj -program-headers %t2 | FileCheck %s
-# RUN: od -Ax -x -N16 -j0x1ff0 %t2 | FileCheck %s -check-prefix=FILL
+# RUN: llvm-readobj -program-headers %t2 | FileCheck --check-prefix=CHECK --check-prefix=X86 %s
+# RUN: od -Ax -x -N16 -j0x1ff0 %t2 | FileCheck %s -check-prefix=FILL_X86
+
+# 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 --check-prefix=CHECK --check-prefix=PPC64LE %s
+# RUN: od -Ax -t x4 -N16 -j0x10ff0 %t.ppc64le | FileCheck %s -check-prefix=FILL_PPC64LE
+
+# 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 --check-prefix=CHECK --check-prefix=PPC64 %s
+# RUN: od -Ax -t x4 -N16 -j0x10ff0 %t.ppc64 | FileCheck %s -check-prefix=FILL_PPC64
 
 # CHECK: ProgramHeader {
 # CHECK:   Type: PT_LOAD
-# CHECK:   Offset: 0x1000
+# X86:          Offset: 0x1000{{$}}
+# PPC64LE:      Offset: 0x10000{{$}}
+# PPC64:        Offset: 0x10000{{$}}
 # CHECK-NEXT:   VirtualAddress:
 # CHECK-NEXT:   PhysicalAddress:
 # CHECK-NEXT:   FileSize: 4096
@@ -18,7 +30,11 @@
 # CHECK-NEXT:   ]
 
 ## Check that executable page is filled with traps at its end.
-# FILL: 001ff0 cccc cccc cccc cccc cccc cccc cccc cccc
+# FILL_X86: 001ff0 cccc cccc cccc cccc cccc cccc cccc cccc
+
+# FILL_PPC64LE: 010ff0 7fe00008 7fe00008 7fe00008 7fe00008
+
+# FILL_PPC64: 010ff0 7fe00008 7fe00008 7fe00008 7fe00008
 
 .globl _start
 _start:
Index: ELF/Arch/PPC64.cpp
===================================================================
--- ELF/Arch/PPC64.cpp
+++ ELF/Arch/PPC64.cpp
@@ -87,6 +87,8 @@
   // 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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