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Build ID is a protocol for looking up debug files that's already supported by various tools including debuggers. For example, when locating debug files, gdb would check the following directories: - /usr/lib/debug/.build-id/ab/cdef1234.debug - /usr/bin/ls.debug - /usr/bin/.debug/ls.debug - /usr/lib/debug/usr/bin/ls.debug llvm-symbolizer currently consults all of these except for build ID based one. This patch implements support for build ID lookup. The set of debug directories to search is specified by the new option: --debug-file-directory, whose name matches the debug-file-directory variable used by gdb for the same purpose. Differential Revision: https://reviews.llvm.org/D70759
29 lines
736 B
Plaintext
29 lines
736 B
Plaintext
# RUN: yaml2obj %s -o %t
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# RUN: llvm-symbolizer --debug-file-directory=/non-existent --obj=%t 0x20112f | FileCheck --check-prefix=UNKNOWN %s
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# UNKNOWN: ??
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# UNKNOWN-NEXT: ??:0:0
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# RUN: llvm-symbolizer --debug-file-directory=%p/Inputs --obj=%t 0x20112f | FileCheck --check-prefix=FOUND %s
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# FOUND: main
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# FOUND-NEXT: /tmp/dbginfo{{[/\\]}}dwarfdump-test.cc:16
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Machine: EM_X86_64
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Sections:
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- Name: .note.gnu.build-id
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Type: SHT_NOTE
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Flags: [ SHF_ALLOC ]
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Content: 040000000800000003000000474e5500abb50d82b6bdc861
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ProgramHeaders:
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- Type: PT_NOTE
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Flags: [ PF_R ]
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Sections:
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- Section: .note.gnu.build-id
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