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Define TrapInst for ppc64
ClosedPublic

Authored by • espindola on Apr 2 2018, 1:30 PM.

Reviewers

sfertile
ruiu

Summary

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

test/ELF/fill-trap.s
1 ↗	(On Diff #140682)	Don't you need to enable both x86 and ppc to run this test now? Maybe it is better to split this for each arch.

Use a new test file for ppc64.

LGTM

This revision is now accepted and ready to land.Apr 2 2018, 2:07 PM

329014.

Path

Size

ELF/

Arch/

2 lines

test/

ELF/

30 lines

Show First 20 Lines • Show All 87 Lines • ▼ Show 20 Lines	PPC64::PPC64() {
//		//
// It is normally desirable to put segments with different characteristics		// It is normally desirable to put segments with different characteristics
// in separate 256 Mbyte portions of the address space, to give the		// in separate 256 Mbyte portions of the address space, to give the
// operating system full paging flexibility in the 64-bit address space.		// operating system full paging flexibility in the 64-bit address space.
//		//
// And because the lowest non-zero 256M boundary is 0x10000000, PPC64 linkers		// And because the lowest non-zero 256M boundary is 0x10000000, PPC64 linkers
// use 0x10000000 as the starting address.		// use 0x10000000 as the starting address.
DefaultImageBase = 0x10000000;		DefaultImageBase = 0x10000000;

		TrapInstr = 0x7fe00008;
}		}

static uint32_t getEFlags(InputFile *File) {		static uint32_t getEFlags(InputFile *File) {
// Get the e_flag from the input file and if it is unspecified, then set it to		// Get the e_flag from the input file and if it is unspecified, then set it to
// the e_flag appropriate for the ABI.		// the e_flag appropriate for the ABI.

// We are currently handling both ELF64LE and ELF64BE but eventually will		// We are currently handling both ELF64LE and ELF64BE but eventually will
// remove BE support once v2 ABI support is complete.		// remove BE support once v2 ABI support is complete.
▲ Show 20 Lines • Show All 188 Lines • Show Last 20 Lines

				# 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