derek.holloway
7502bf64a4
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92 lines
3.1 KiB
ArmAsm
92 lines
3.1 KiB
ArmAsm
# REQUIRES: x86
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# RUN: rm -rf %t && split-file %s %t && cd %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64 a.s -o a.o
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## Check we can overlap a NOLOAD output section containing a NOBITS input section.
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# RUN: ld.lld --script nobits.lds a.o -o out
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# RUN: llvm-readelf -S -l out | FileCheck %s -check-prefix OVERLAP-NOBITS
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# OVERLAP-NOBITS: Name Type Address Off Size
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# OVERLAP-NOBITS: .bss NOBITS 0000000000101000 [[OFF:[0-9a-f]+]] 001000
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# OVERLAP-NOBITS-NEXT: .overlap PROGBITS 0000000000200000 [[OFF]] 000001
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# OVERLAP-NOBITS: Type Offset VirtAddr PhysAddr FileSiz MemSiz
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# OVERLAP-NOBITS: LOAD 0x002000 0x0000000000101000 0x0000000000101000 0x000000 0x001000
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# OVERLAP-NOBITS-NEXT: LOAD 0x002000 0x0000000000200000 0x0000000000101000 0x000001 0x000001
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# OVERLAP-NOBITS: Section to Segment mapping:
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# OVERLAP-NOBITS: 01 .bss
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# OVERLAP-NOBITS: 02 .overlap
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## Check we can overlap a NOLOAD output section containing a PROGBITS input section.
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# RUN: ld.lld --script noload.lds a.o -o out
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# RUN: llvm-readelf -S -l out | FileCheck %s -check-prefix OVERLAP-NOLOAD
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# OVERLAP-NOLOAD: Name Type Address Off Size
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# OVERLAP-NOLOAD: .data NOBITS 0000000000101000 [[OFF:[0-9a-f]+]] 001000
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# OVERLAP-NOLOAD-NEXT: .overlap PROGBITS 0000000000200000 [[OFF]] 000001
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# OVERLAP-NOLOAD: Type Offset VirtAddr PhysAddr FileSiz MemSiz
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# OVERLAP-NOLOAD: LOAD 0x002000 0x0000000000101000 0x0000000000101000 0x000000 0x001000
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# OVERLAP-NOLOAD-NEXT: LOAD 0x002000 0x0000000000200000 0x0000000000101000 0x000001 0x000001
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# OVERLAP-NOLOAD: Section to Segment mapping:
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# OVERLAP-NOLOAD: 01 .data
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# OVERLAP-NOLOAD-NEXT: 02 .overlap
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## Check that we cannot overlap the memory occupied by a NOBITS input section
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## that is assigned to a PROGBITS output section.
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# RUN: not ld.lld --script progbits.lds a.o -o /dev/null 2>&1 | FileCheck %s -check-prefix ERR-PROGBITS-TYPE
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# ERR-PROGBITS-TYPE: error: section .progbits load address range overlaps with .overlap
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#--- a.s
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.section .text,"ax",@progbits
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nop
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.org 4096
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.section .data,"aw",@progbits
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.fill 4096, 1, 0xFF
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.section .bss,"aw",@nobits
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.zero 4096
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.section .overlap,"aw",@progbits
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.byte 1
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#--- nobits.lds
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MEMORY {
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RAM1 : ORIGIN = 0x100000, LENGTH = 1M
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RAM2 : ORIGIN = 0x200000, LENGTH = 1M
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}
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SECTIONS {
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.text : { *(.text); _start = .; } > RAM1
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.bss : { *(.bss); } > RAM1
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.overlap : AT(LOADADDR(.bss)) { *(.overlap); } > RAM2
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/DISCARD/ : { *(.data); *(.nobits); }
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}
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#--- noload.lds
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MEMORY {
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RAM1 : ORIGIN = 0x100000, LENGTH = 1M
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RAM2 : ORIGIN = 0x200000, LENGTH = 1M
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}
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SECTIONS {
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.text : { *(.text); _start = .; } > RAM1
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.data (NOLOAD) : { *(.data); } > RAM1
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.overlap : AT(LOADADDR(.data)) { *(.overlap); } > RAM2
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/DISCARD/ : { *(.bss); *(.nobits); }
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}
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#--- progbits.lds
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MEMORY {
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RAM1 : ORIGIN = 0x100000, LENGTH = 1M
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RAM2 : ORIGIN = 0x200000, LENGTH = 1M
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}
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SECTIONS {
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.progbits : { *(.text); _start = .; *(.bss); } > RAM1
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.overlap : AT(_start) { *(.overlap); } > RAM2
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/DISCARD/ : { *(.data); }
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}
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