347fb02093
This patch does *not* implement any semantic actions, but it is a first step to teach LLD how to read complete linker scripts. The additional linker scripts statements whose parsing is now supported are: * SEARCH_DIR directive * SECTIONS directive * Symbol definitions inside SECTIONS including PROVIDE and PROVIDE_HIDDEN * C-like expressions used in many places in linker scripts * Input to output sections mapping The goal of this commit was guided towards completely parsing a default GNU ld linker script and the linker script used to link the FreeBSD kernel. Thus, it also adds a test case based on the default linker script used in GNU ld for x86_64 ELF targets. I tested SPEC userland programs linked by GNU ld, using the linker script dump'ed by this parser, and everything went fine. I then tested linking the FreeBSD kernel with a dump'ed linker script, installed the new kernel and booted it, everything went fine. Directives that still need to be implemented: * MEMORY * PHDRS Reviewers: silvas, shankarke and ruiu http://reviews.llvm.org/D5852 llvm-svn: 221126
13 lines
228 B
Plaintext
13 lines
228 B
Plaintext
/* RUN: linker-script-test %s | FileCheck %s
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*/
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OUTPUT_FORMAT(elf64-x86-64)
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/*
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CHECK: kw_output_format: OUTPUT_FORMAT
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CHECK: l_paren: (
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CHECK: identifier: elf64-x86-64
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CHECK: r_paren: )
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CHECK: OUTPUT_FORMAT("elf64-x86-64")
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*/
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