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

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

llvm-svn: 326694
This commit is contained in:
Nicholas Wilson 2018-03-05 12:59:03 +00:00
parent 94d3b16101
commit c22bfb6b4b
6 changed files with 8 additions and 8 deletions
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2
llvm/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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llvm/test/Object/Inputs/trivial-object-test.wasm
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llvm/test/tools/llvm-objdump/Inputs/trivial.obj.wasm
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4
llvm/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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llvm/test/tools/llvm-readobj/Inputs/trivial.obj.wasm
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10
llvm/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: ]