}
template <class ELFT>
+typename ELFT::uint
+LinkerScript<ELFT>::getOutputSectionAddress(StringRef Name) {
+ for (OutputSectionBase<ELFT> *Sec : *OutputSections)
+ if (Sec->getName() == Name)
+ return Sec->getVA();
+ error("undefined section " + Name);
+ return 0;
+}
+
+template <class ELFT>
typename ELFT::uint LinkerScript<ELFT>::getOutputSectionSize(StringRef Name) {
for (OutputSectionBase<ELFT> *Sec : *OutputSections)
if (Sec->getName() == Name)
}
}
+static uint64_t getSectionAddress(StringRef Name) {
+ switch (Config->EKind) {
+ case ELF32LEKind:
+ return Script<ELF32LE>::X->getOutputSectionAddress(Name);
+ case ELF32BEKind:
+ return Script<ELF32BE>::X->getOutputSectionAddress(Name);
+ case ELF64LEKind:
+ return Script<ELF64LE>::X->getOutputSectionAddress(Name);
+ case ELF64BEKind:
+ return Script<ELF64BE>::X->getOutputSectionAddress(Name);
+ default:
+ llvm_unreachable("unsupported target");
+ }
+}
+
static uint64_t getHeaderSize() {
switch (Config->EKind) {
case ELF32LEKind:
// Built-in functions are parsed here.
// https://sourceware.org/binutils/docs/ld/Builtin-Functions.html.
+ if (Tok == "ADDR") {
+ expect("(");
+ StringRef Name = next();
+ expect(")");
+ return [=](uint64_t Dot) { return getSectionAddress(Name); };
+ }
if (Tok == "ASSERT")
return readAssert();
if (Tok == "ALIGN") {
void assignAddresses();
int compareSections(StringRef A, StringRef B);
bool hasPhdrsCommands();
+ uintX_t getOutputSectionAddress(StringRef Name);
uintX_t getOutputSectionSize(StringRef Name);
uintX_t getHeaderSize();
--- /dev/null
+# REQUIRES: x86
+# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
+# RUN: echo "SECTIONS { \
+# RUN: . = 0x1000; \
+# RUN: .text : { *(.text*) } \
+# RUN: .foo.1 : { *(.foo.1) } \
+# RUN: .foo.2 ADDR(.foo.1) + 0x100 : { *(.foo.2) } \
+# RUN: .foo.3 : { *(.foo.3) } \
+# RUN: }" > %t.script
+# RUN: ld.lld %t --script %t.script -o %t1
+# RUN: llvm-objdump -section-headers %t1 | FileCheck %s
+
+# CHECK: Sections:
+# CHECK-NEXT: Idx Name Size Address Type
+# CHECK-NEXT: 0 00000000 0000000000000000
+# CHECK-NEXT: 1 .text 00000000 0000000000001000 TEXT DATA
+# CHECK-NEXT: 2 .foo.1 00000008 0000000000001000 DATA
+# CHECK-NEXT: 3 .foo.2 00000008 0000000000001100 DATA
+# CHECK-NEXT: 4 .foo.3 00000008 0000000000001108 DATA
+
+.text
+.globl _start
+_start:
+
+.section .foo.1,"a"
+ .quad 1
+
+.section .foo.2,"a"
+ .quad 2
+
+.section .foo.3,"a"
+ .quad 3