# Test that linking without shared memory causes __tls_base to be # internalized. # RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown -o %t.o %s .globaltype __tls_base, i32 .globl get_tls1 get_tls1: .functype get_tls1 () -> (i32) global.get __tls_base i32.const tls1@TLSREL i32.add end_function .globl get_tls1_got get_tls1_got: .functype get_tls1_got () -> (i32) global.get tls1@GOT@TLS end_function .section .data.no_tls,"",@ .globl no_tls .p2align 2 no_tls: .int32 42 .size no_tls, 4 .section .tdata.tls1,"T",@ .globl tls1 .p2align 2 tls1: .int32 43 .size tls1, 2 .section .custom_section.target_features,"",@ .int8 2 .int8 43 .int8 7 .ascii "atomics" .int8 43 .int8 11 .ascii "bulk-memory" # RUN: wasm-ld --no-gc-sections --no-entry -o %t.wasm %t.o # RUN: obj2yaml %t.wasm | FileCheck %s # RUN: wasm-ld --experimental-pic -shared -o %t.so %t.o # RUN: obj2yaml %t.so | FileCheck %s --check-prefixes=SHARED,PIC # RUN: wasm-ld --experimental-pic --no-gc-sections --no-entry -pie -o %t-pie.wasm %t.o # RUN: obj2yaml %t-pie.wasm | FileCheck %s --check-prefixes=PIE,PIC # RUN: wasm-ld --experimental-pic --features=atomics,bulk-memory,extended-const --no-gc-sections --no-entry -pie -o %t-extended-const.wasm %t.o # RUN: obj2yaml %t-extended-const.wasm | FileCheck %s --check-prefixes=EXT-CONST # CHECK: - Type: GLOBAL # __stack_pointer # CHECK-NEXT: Globals: # CHECK-NEXT: - Index: 0 # CHECK-NEXT: Type: I32 # CHECK-NEXT: Mutable: true # CHECK-NEXT: InitExpr: # CHECK-NEXT: Opcode: I32_CONST # CHECK-NEXT: Value: 66576 # __tls_base # CHECK-NEXT: - Index: 1 # CHECK-NEXT: Type: I32 # CHECK-NEXT: Mutable: false # CHECK-NEXT: InitExpr: # CHECK-NEXT: Opcode: I32_CONST # CHECK-NEXT: Value: 1024 # GOT.data.internal.tls1 # CHECK-NEXT: - Index: 2 # CHECK-NEXT: Type: I32 # CHECK-NEXT: Mutable: false # CHECK-NEXT: InitExpr: # CHECK-NEXT: Opcode: I32_CONST # CHECK-NEXT: Value: 1024 # CHECK-NEXT: - Type: EXPORT # CHECK: - Type: DATA # .data # CHECK-NEXT: Segments: # CHECK-NEXT: - SectionOffset: 7 # CHECK-NEXT: InitFlags: 0 # CHECK-NEXT: Offset: # CHECK-NEXT: Opcode: I32_CONST # CHECK-NEXT: Value: 1024 # CHECK-NEXT: Content: 2B000000 # .tdata # CHECK-NEXT: - SectionOffset: 17 # CHECK-NEXT: InitFlags: 0 # CHECK-NEXT: Offset: # CHECK-NEXT: Opcode: I32_CONST # CHECK-NEXT: Value: 1028 # CHECK-NEXT: Content: 2A000000 # CHECK-NEXT: - Type: CUSTOM # In PIC mode we expect TLS data and non-TLS data to be merged into # a single segment which is initialized via the __memory_base import # SHARED: - Type: IMPORT # SHARED-NEXT: Imports: # SHARED-NEXT: - Module: env # SHARED-NEXT: Field: memory # SHARED-NEXT: Kind: MEMORY # SHARED-NEXT: Memory: # SHARED-NEXT: Minimum: 0x1 # SHARED-NEXT: - Module: env # SHARED-NEXT: Field: __memory_base # SHARED-NEXT: Kind: GLOBAL # SHARED-NEXT: GlobalType: I32 # In SHARED mode we export the address of all data symbols. # SHARED: - Type: EXPORT # SHARED-NEXT: Exports: # SHARED: - Name: tls1 # SHARED-NEXT: Kind: GLOBAL # SHARED: - Name: no_tls # SHARED-NEXT: Kind: GLOBAL # In PIE mode we don't export data address by default. # PIE: - Type: EXPORT # PIE-NEXT: Exports: # PIE-NEXT: - Name: memory # PIE-NEXT: Kind: MEMORY # PIE-NEXT: Index: 0 # PIE-NEXT: - Name: __wasm_apply_data_relocs # PIE-NEXT: Kind: FUNCTION # PIE-NEXT: Index: 1 # PIE-NEXT: - Type: # .tdata and .data are combined into single segment in PIC mode. # PIC: - Type: DATA # PIC-NEXT: Segments: # PIC-NEXT: - SectionOffset: 6 # PIC-NEXT: InitFlags: 0 # PIC-NEXT: Offset: # PIC-NEXT: Opcode: GLOBAL_GET # PIC-NEXT: Index: {{\d*}} # PIC-NEXT: Content: 2B0000002A000000 # PIC-NEXT: - Type: CUSTOM # Unless we have extended-const, in which case the merging is not needed. # The first segment is placed directly at `__memory_base` and the second # one is offset from `__memory_base` using `i32.add` and a constant. # EXT-CONST: - Type: DATA # EXT-CONST-NEXT: Segments: # EXT-CONST-NEXT: - SectionOffset: 6 # EXT-CONST-NEXT: InitFlags: 0 # EXT-CONST-NEXT: Offset: # EXT-CONST-NEXT: Opcode: GLOBAL_GET # EXT-CONST-NEXT: Index: 1 # EXT-CONST-NEXT: Content: 2B000000 # EXT-CONST-NEXT: - SectionOffset: 18 # EXT-CONST-NEXT: InitFlags: 0 # EXT-CONST-NEXT: Offset: # EXT-CONST-NEXT: Extended: true # This instruction sequence decodes to: # (global.get[0x23] 0x1 i32.const[0x41] 0x04 i32.add[0x6A] end[0x0b]) # EXT-CONST-NEXT: Body: 230141046A0B # EXT-CONST-NEXT: Content: 2A000000