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James Clark
206dcfca1f
The new LLVM addr2line feature requires a minimum version of 13 to
compile. Add a feature check for the version so that NO_LLVM=1 doesn't
need to be explicitly added. Leave the existing llvm feature check
intact because it's used by tools other than Perf.
This fixes the following compilation error when the llvm-dev version
doesn't match:
util/llvm-c-helpers.cpp: In function 'char* llvm_name_for_code(dso*, const char*, u64)':
util/llvm-c-helpers.cpp:178:21: error: 'std::remove_reference_t<llvm::DILineInfo>' {aka 'struct llvm::DILineInfo'} has no member named 'StartAddress'
178 | addr, res_or_err->StartAddress ? *res_or_err->StartAddress : 0);
Fixes: c3f8644c21 ("perf report: Support LLVM for addr2line()")
Signed-off-by: James Clark <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Bill Wendling <[email protected]>
Cc: Changbin Du <[email protected]>
Cc: Guilherme Amadio <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Justin Stitt <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Manu Bretelle <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Quentin Monnet <[email protected]>
Cc: Steinar H. Gunderson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
15 lines
302 B
C++
15 lines
302 B
C++
// SPDX-License-Identifier: GPL-2.0
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/raw_ostream.h"
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#if LLVM_VERSION_MAJOR < 13
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# error "Perf requires llvm-devel/llvm-dev version 13 or greater"
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#endif
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int main()
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{
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llvm::errs() << "Hello World!\n";
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llvm::llvm_shutdown();
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return 0;
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}
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