[PATCH] D40847: [WebAssembly] Fix stack pointer relocations
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Tue Dec 5 12:39:05 PST 2017
This revision was automatically updated to reflect the committed changes.
Closed by commit rLLD319828: [WebAssembly] Fix stack pointer relocations (authored by sbc).
Changed prior to commit:
https://reviews.llvm.org/D40847?vs=125582&id=125593#toc
Repository:
rLLD LLVM Linker
https://reviews.llvm.org/D40847
Files:
test/wasm/stack-pointer.ll
wasm/Driver.cpp
Index: wasm/Driver.cpp
===================================================================
--- wasm/Driver.cpp
+++ wasm/Driver.cpp
@@ -142,6 +142,7 @@
log("injecting global: " + Name);
Symbol *S = Symtab->addDefinedGlobal(Name);
S->setVirtualAddress(Value);
+ S->setOutputIndex(Config->SyntheticGlobals.size());
Config->SyntheticGlobals.emplace_back(S);
return S;
}
Index: test/wasm/stack-pointer.ll
===================================================================
--- test/wasm/stack-pointer.ll
+++ test/wasm/stack-pointer.ll
@@ -0,0 +1,67 @@
+; RUN: llc -filetype=obj %s -o %t.o
+; RUN: lld -flavor wasm --emit-relocs -o %t.wasm %t.o
+; RUN: obj2yaml %t.wasm | FileCheck %s
+
+target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
+target triple = "wasm32-unknown-unknown-wasm"
+
+; Function Attrs: nounwind
+define hidden i32 @_start() local_unnamed_addr {
+entry:
+ %retval = alloca i32, align 4
+ ret i32 0
+}
+
+; CHECK: --- !WASM
+; CHECK-NEXT: FileHeader:
+; CHECK-NEXT: Version: 0x00000001
+; CHECK-NEXT: Sections:
+; CHECK-NEXT: - Type: TYPE
+; CHECK-NEXT: Signatures:
+; CHECK-NEXT: - Index: 0
+; CHECK-NEXT: ReturnType: I32
+; CHECK-NEXT: ParamTypes:
+; CHECK-NEXT: - Type: FUNCTION
+; CHECK-NEXT: FunctionTypes: [ 0 ]
+; CHECK-NEXT: - Type: TABLE
+; CHECK-NEXT: Tables:
+; CHECK-NEXT: - ElemType: ANYFUNC
+; CHECK-NEXT: Limits:
+; CHECK-NEXT: Flags: 0x00000001
+; CHECK-NEXT: Initial: 0x00000001
+; CHECK-NEXT: Maximum: 0x00000001
+; CHECK-NEXT: - Type: MEMORY
+; CHECK-NEXT: Memories:
+; CHECK-NEXT: - Initial: 0x00000002
+; CHECK-NEXT: - Type: GLOBAL
+; CHECK-NEXT: Globals:
+; CHECK-NEXT: - Type: I32
+; CHECK-NEXT: Mutable: true
+; CHECK-NEXT: InitExpr:
+; CHECK-NEXT: Opcode: I32_CONST
+; CHECK-NEXT: Value: 66560
+; CHECK-NEXT: - Type: EXPORT
+; CHECK-NEXT: Exports:
+; CHECK-NEXT: - Name: memory
+; CHECK-NEXT: Kind: MEMORY
+; CHECK-NEXT: Index: 0
+; CHECK-NEXT: - Name: _start
+; CHECK-NEXT: Kind: FUNCTION
+; CHECK-NEXT: Index: 0
+; CHECK-NEXT: - Type: CODE
+; CHECK-NEXT: Relocations:
+; CHECK-NEXT: - Type: R_WEBASSEMBLY_GLOBAL_INDEX_LEB
+; CHECK-NEXT: Index: 0
+; CHECK-NEXT: Offset: 0x00000004
+; CHECK-NEXT: Functions:
+; CHECK-NEXT: - Locals:
+; CHECK-NEXT: Body: 23808080800041106B1A41000B
+; CHECK-NEXT: - Type: CUSTOM
+; CHECK-NEXT: Name: linking
+; CHECK-NEXT: DataSize: 0
+; CHECK-NEXT: - Type: CUSTOM
+; CHECK-NEXT: Name: name
+; CHECK-NEXT: FunctionNames:
+; CHECK-NEXT: - Index: 0
+; CHECK-NEXT: Name: _start
+; CHECK-NEXT: ...
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