1978c21d96
The current tokenize-whole-file approach has a few limitations. * Lack of state information: `maybeSplitExpr` is needed to parse expressions. It's infeasible to add new states to behave more like GNU ld. * `readInclude` may insert tokens in the middle, leading to a time complexity issue with N-nested `INCLUDE`. * line/column information for diagnostics are inaccurate, especially after an `INCLUDE`. * `getLineNumber` cannot be made more efficient without significant code complexity and memory consumption. https://reviews.llvm.org/D104137 The patch switches to a traditional lexer that generates tokens lazily. * `atEOF` behavior is modified: we need to call `peek` to determine EOF. * `peek` and `next` cannot call `setError` upon `atEOF`. * Since `consume` no longer reports an error upon `atEOF`, the idiom `while (!errorCount() && !consume(")"))` would cause a dead loop. Use `while (peek() != ")" && !atEOF()) { ... } expect(")")` instead. * An include stack is introduced to handle `readInclude`. This can be utilized to address #93947 properly. * `tokens` and `pos` are removed. * `commandString` is reimplemented. Since it is used in -Map output, `\n` needs to be replaced with space. Pull Request: https://github.com/llvm/llvm-project/pull/100493
65 lines
2.4 KiB
Plaintext
65 lines
2.4 KiB
Plaintext
## Different "echo" commands on Windows interpret quoted strings and
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## wildcards in similar but different way (On Windows, ARGV tokenization
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## and wildcard expansion are not done by the shell but by each command.)
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## Because of that reason, this test fails on some Windows environment.
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## We can't write quoted strings that are interpreted the same way
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## by all echo commands. So, we don't want to run this on Windows.
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# REQUIRES: shell
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# RUN: mkdir -p %t.dir
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## Note that we are using "cannot open no-such-file: " as a marker that the
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## linker keep going when it found an error. That specific error message is not
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## related to the linker script tests.
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# RUN: echo foobar > %t1
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# RUN: not ld.lld %t1 no-such-file 2>&1 | FileCheck -check-prefix=ERR1 %s
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# ERR1: error: {{.*}}1:1: unknown directive: foobar
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# ERR1: cannot open no-such-file:
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# RUN: echo "foo \"bar" > %t2
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# RUN: not ld.lld %t2 no-such-file 2>&1 | FileCheck -check-prefix=ERR2 %s
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# ERR2: unclosed quote
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# ERR2: cannot open no-such-file:
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# RUN: echo "/*" > %t3
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# RUN: not ld.lld %t3 no-such-file 2>&1 | FileCheck -check-prefix=ERR3 %s
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# ERR3: unclosed comment
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# ERR3: cannot open no-such-file:
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# RUN: echo "EXTERN (" > %t4
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# RUN: not ld.lld %t4 no-such-file 2>&1 | FileCheck -check-prefix=ERR4 %s
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# ERR4: unexpected EOF
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# ERR4: cannot open no-such-file:
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# RUN: echo "EXTERN (" > %t5
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# RUN: not ld.lld %t5 no-such-file 2>&1 | FileCheck -check-prefix=ERR5 %s
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# ERR5: unexpected EOF
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# ERR5: cannot open no-such-file:
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# RUN: echo "EXTERN xyz" > %t6
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# RUN: not ld.lld %t6 no-such-file 2>&1 | FileCheck -check-prefix=ERR6 %s
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# ERR6: ( expected, but got xyz
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# ERR6: cannot open no-such-file:
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# RUN: echo "INCLUDE /no/such/file" > %t7
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# RUN: not ld.lld %t7 no-such-file 2>&1 | FileCheck -check-prefix=ERR7 %s
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# ERR7: cannot find linker script /no/such/file
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# ERR7: cannot open no-such-file:
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# RUN: echo "OUTPUT_FORMAT(x y z)" > %t8
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# RUN: not ld.lld %t8 no-such-file 2>&1 | FileCheck -check-prefix=ERR8 %s
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# RUN: not ld.lld -m elf_amd64 %t8 no-such-file 2>&1 | FileCheck -check-prefix=ERR8 %s
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# ERR8: , expected, but got y
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# ERR8: cannot open no-such-file:
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# RUN: echo "OUTPUT_FORMAT(elf64-x86-64 y z)" > %t9
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# RUN: not ld.lld %t9 no-such-file 2>&1 | FileCheck -check-prefix=ERR9 %s
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# ERR9: , expected, but got y
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# ERR9: cannot open no-such-file:
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# RUN: echo 'OUTPUT_FORMAT("")' > %t10
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# RUN: not ld.lld %t10 2>&1 | FileCheck -check-prefix=ERR10 %s
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# ERR10: error: {{.*}}:1: unknown output format name:
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