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llvm-project/lld/test/ELF/note-loadaddr.c

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[ELF] Handle multiple discontiguous .note sections There could be multiple discontiguous output .note sections in which case we need to put these into separate PT_NOTE segments rather then placing them into a single segment. Where possible, we could reorder the input sections to make sure that all .note are layed out next to each other to avoid creation multiple PT_NOTE segments, but even in that case, it's still possible to construct a discontiguous case e.g. by using a linker script. Differential Revision: https://reviews.llvm.org/D29364 llvm-svn: 293811
2017-02-02 04:58:41 +08:00
// REQUIRES: x86
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
// RUN: echo "SECTIONS { \
// RUN: .note.a : AT(0x1000) { *(.note.a) } \
// RUN: .note.b : AT(0x2000) { *(.note.b) } \
// RUN: }" > %t.script
// RUN: ld.lld %t.o --script %t.script -o %t
// RUN: llvm-readobj -program-headers %t | FileCheck %s
// CHECK: Type: PT_NOTE
// CHECK-NEXT: Offset: 0x1000
// CHECK-NEXT: VirtualAddress: 0x0
// CHECK-NEXT: PhysicalAddress: 0x1000
// CHECK-NEXT: FileSize: 8
// CHECK-NEXT: MemSize: 8
// CHECK-NEXT: Flags [
// CHECK-NEXT: PF_R
// CHECK-NEXT: ]
// CHECK-NEXT: Alignment: 1
// CHECK: Type: PT_NOTE
// CHECK-NEXT: Offset: 0x1008
// CHECK-NEXT: VirtualAddress: 0x8
// CHECK-NEXT: PhysicalAddress: 0x2000
// CHECK-NEXT: FileSize: 8
// CHECK-NEXT: MemSize: 8
// CHECK-NEXT: Flags [
// CHECK-NEXT: PF_R
// CHECK-NEXT: ]
// CHECK-NEXT: Alignment: 1
.section .note.a, "a", @note
.quad 0
.section .note.b, "a", @note
.quad 0