Patch from Andrew Kelley. For context, see https://bugs.llvm.org/show_bug.cgi?id=39862 The use case is embedded / OS programming where the kernel wants access to its own debug info via mapped dwarf info. I have a proof of concept of this working, using this linker script snippet: .rodata : ALIGN(4K) { *(.rodata) __debug_info_start = .; KEEP(*(.debug_info)) __debug_info_end = .; __debug_abbrev_start = .; KEEP(*(.debug_abbrev)) __debug_abbrev_end = .; __debug_str_start = .; KEEP(*(.debug_str)) __debug_str_end = .; __debug_line_start = .; KEEP(*(.debug_line)) __debug_line_end = .; __debug_ranges_start = .; KEEP(*(.debug_ranges)) __debug_ranges_end = .; } Differential revision: https://reviews.llvm.org/D55276 llvm-svn: 348291
15 lines
372 B
ArmAsm
15 lines
372 B
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
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# RUN: echo "SECTIONS { .text : { *(.text) *(.nonalloc) } }" > %t.script
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# RUN: ld.lld -shared -o %t.exe %t.script %t.o
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# RUN: llvm-objdump -syms %t.exe | FileCheck %s
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# CHECK: .text 00000000 nonalloc_start
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_start:
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nop
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.section .nonalloc,"",@progbits
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nonalloc_start:
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.long 0xcafe
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