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[WebAssembly] Reorder reloc sections to come between symtab and name

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This is required in order to enable relocs to be validated
as they are read in.

Also update tests with new section ordering.

Differential Revision: https://reviews.llvm.org/D43940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@326694 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nicholas Wilson 2018-03-05 12:59:03 +00:00
parent a60bc625ce
commit 022e5fa26f
6 changed files with 8 additions and 8 deletions
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2
lib/MC/WasmObjectWriter.cpp
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@ -1307,9 +1307,9 @@ void WasmObjectWriter::writeObject(MCAssembler &Asm,
writeElemSection(TableElems);
writeCodeSection(Asm, Layout, Functions);
writeDataSection();
writeLinkingMetaDataSection(SymbolInfos, InitFuncs, Comdats);
writeCodeRelocSection();
writeDataRelocSection();
writeLinkingMetaDataSection(SymbolInfos, InitFuncs, Comdats);
// TODO: Translate the .comment section to the output.
// TODO: Translate debug sections to the output.

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test/Object/Inputs/trivial-object-test.wasm
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test/tools/llvm-objdump/Inputs/trivial.obj.wasm
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4
test/tools/llvm-objdump/wasm.txt
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@ -7,8 +7,8 @@
# CHECK-NEXT: 2 FUNCTION 00000002 0000000000000000
# CHECK-NEXT: 3 CODE 00000019 0000000000000000 TEXT
# CHECK-NEXT: 4 DATA 0000001c 0000000000000000 DATA
# CHECK-NEXT: 5 reloc.CODE 00000017 0000000000000000
# CHECK-NEXT: 6 linking 00000055 0000000000000000
# CHECK-NEXT: 5 linking 00000055 0000000000000000
# CHECK-NEXT: 6 reloc.CODE 00000017 0000000000000000
# RUN: llvm-objdump -p %p/Inputs/trivial.obj.wasm | FileCheck %s -check-prefix CHECK-HEADER

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test/tools/llvm-readobj/Inputs/trivial.obj.wasm
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10
test/tools/llvm-readobj/sections.test
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@ -528,14 +528,14 @@ WASM-NEXT: ]
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: CUSTOM (0x0)
WASM-NEXT: Size: 23
WASM-NEXT: Size: 65
WASM-NEXT: Offset: 191
WASM-NEXT: Name: reloc.CODE
WASM-NEXT: Name: linking
WASM-NEXT: }
WASM-NEXT: Section {
WASM-NEXT: Type: CUSTOM (0x0)
WASM-NEXT: Size: 65
WASM-NEXT: Offset: 220
WASM-NEXT: Name: linking
WASM-NEXT: Size: 23
WASM-NEXT: Offset: 262
WASM-NEXT: Name: reloc.CODE
WASM-NEXT: }
WASM-NEXT: ]