1bb79875e4
Don't early return from layoutMemory in PIC mode before we have set the memory limits. This matters in particular with shared-memory + PIC because shared memories require maximum size. Secondly, when we need a maximum, but the user does not supply one, default to MAX_INT rather than 0 (defaulting to zero is completely useless and means that building with -shared didn't previously work at all without --maximum-memory, because zero is never big enough). This is part of an ongoing effort to enable dynamic linking with threads in emscripten. See https://github.com/emscripten-core/emscripten/issues/3494 Differential Revision: https://reviews.llvm.org/D92528
75 lines
2.6 KiB
YAML
75 lines
2.6 KiB
YAML
# RUN: yaml2obj %s -o %t1.o
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# RUN: wasm-ld --no-entry --shared-memory --features=atomics,bulk-memory %t1.o -o - | obj2yaml | FileCheck %s --check-prefix SHARED
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# RUN: not wasm-ld --no-entry --shared-memory --max-memory=100000 %t1.o -o - 2>&1 | FileCheck %s --check-prefix SHARED-UNALIGNED
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# RUN: not wasm-ld --no-entry --shared-memory --max-memory=131072 --features=bulk-memory %t1.o -o - 2>&1 | FileCheck %s --check-prefix SHARED-NO-ATOMICS
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# RUN: not wasm-ld --no-entry --shared-memory --max-memory=131072 --features=atomics %t1.o -o - 2>&1 | FileCheck %s --check-prefix SHARED-NO-BULK-MEM
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# RUN: wasm-ld --relocatable --features=atomics %t1.o -o - | obj2yaml | FileCheck %s --check-prefix ATOMICS-RELOCATABLE
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# RUN: wasm-ld --no-entry --shared-memory --max-memory=131072 --features=atomics,bulk-memory %t1.o -o - | obj2yaml | FileCheck %s --check-prefix SHARED
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--- !WASM
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FileHeader:
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Version: 0x00000001
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Sections:
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- Type: IMPORT
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Imports:
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- Module: env
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Field: __linear_memory
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Kind: MEMORY
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Memory:
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Initial: 0x00000001
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- Module: env
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Field: __indirect_function_table
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Kind: TABLE
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Table:
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Index: 0
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ElemType: FUNCREF
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Limits:
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Initial: 0x00000000
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- Type: DATA
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Segments:
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- SectionOffset: 6
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InitFlags: 0
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Offset:
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Opcode: I32_CONST
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Value: 0
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Content: 68656C6C6F0A00
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- Type: CUSTOM
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Name: linking
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Version: 2
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SymbolTable:
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- Index: 0
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Kind: DATA
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Name: hello_str
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Flags: [ ]
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Segment: 0
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Size: 7
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SegmentInfo:
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- Index: 0
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Name: .rodata.hello_str
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Alignment: 0
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Flags: [ ]
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...
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# SHARED-UNALIGNED: maximum memory must be 65536-byte aligned{{$}}
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# SHARED-NO-ATOMICS: 'atomics' feature must be used in order to use shared memory
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# SHARED-NO-BULK-MEM: 'bulk-memory' feature must be used in order to use shared memory
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# ATOMICS-RELOCATABLE: - Type: MEMORY
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# ATOMICS-RELOCATABLE-NEXT: Memories:
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# ATOMICS-RELOCATABLE-NEXT: Initial: 0x1
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# ATOMICS-RELOCATABLE-NEXT: - Type:
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# SHARED: - Type: MEMORY
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# SHARED-NEXT: Memories:
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# SHARED-NEXT: - Flags: [ HAS_MAX, IS_SHARED ]
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# SHARED-NEXT: Initial: 0x2
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# SHARED-NEXT: Maximum: 0x2
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