mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
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Ian Rogers
257046a367
Factor the addr2line function implementation into separate source files (addr2line.[ch]) and rename the addr2line function cmd__addr2line. In srcline replace the ifdef-ed addr2line implementations with one that first tries the llvm__addr2line implementation, then the deprecated libbfd__addr2line function and on failure uses cmd__addr2line. If HAVE_LIBLLVM_SUPPORT is enabled the llvm__addr2line will execute against the libLLVM.so it is linked against. If HAVE_LIBLLVM_DYNAMIC is enabled then libperf-llvm.so (that links against libLLVM.so) will be dlopened. If the dlopen succeeds then the behavior should match HAVE_LIBLLVM_SUPPORT. On failure cmd__addr2line is used. The dlopen is only tried once. If HAVE_LIBLLVM_DYNAMIC isn't enabled then llvm__addr2line immediately fails and cmd__addr2line is used. Clean up the dso__free_a2l logic, which is only needed in the non-LLVM version and moved to addr2line.c. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Alexandre Ghiti <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Athira Rajeev <[email protected]> Cc: Bill Wendling <[email protected]> Cc: Charlie Jenkins <[email protected]> Cc: Collin Funk <[email protected]> Cc: Dmitriy Vyukov <[email protected]> Cc: Dr. David Alan Gilbert <[email protected]> Cc: Eric Biggers <[email protected]> Cc: Haibo Xu <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Justin Stitt <[email protected]> Cc: Li Huafei <[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: Song Liu <[email protected]> Cc: Stephen Brennan <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
22 lines
514 B
C
22 lines
514 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_LLVM_H
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#define __PERF_LLVM_H
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#include <stdbool.h>
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#include <linux/types.h>
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struct annotate_args;
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struct dso;
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struct inline_node;
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struct symbol;
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int llvm__addr2line(const char *dso_name, u64 addr,
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char **file, unsigned int *line, struct dso *dso,
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bool unwind_inlines, struct inline_node *node,
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struct symbol *sym);
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int symbol__disassemble_llvm(const char *filename, struct symbol *sym,
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struct annotate_args *args);
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#endif /* __PERF_LLVM_H */
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