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Fangrui Song eecbb1c776 [llvm-objdump] --source: drop the warning when there is no debug info 
Warnings have been added for three cases (PR41905): (1) missing debug info, (2)
the source file cannot be found, (3) the debug info points at a line beyond the
end of the file.

(1) is probably less useful. This was brought up once on
http://lists.llvm.org/pipermail/llvm-dev/2020-April/141264.html and two
internal users mentioned it to me that it was annoying. (I personally
find the warning confusing, too.)

Users specify --source to get additional information if sources happen to be
available.  If sources are not available, it should be obvious as the output
will have no interleaved source lines. The warning can be especially annoying
when using llvm-objdump -S on a bunch of files.

This patch drops the warning when there is no debug info.
(If LLVMSymbolizer::symbolizeCode returns an `Error`, there will still be
an error. There is currently no test for an `Error` return value.
The only code path is probably a broken symbol table, but we probably already emit a warning
in that case)

`source-interleave-prefix.test` has an inappropriate "malformed" test - the test simply has no
.debug_* because new llc does not produce debug info when the filename is empty (invalid).
I have tried tampering the header of .debug_info/.debug_line but llvm-symbolizer does not warn.
This patch does not intend to add the missing test coverage.

Differential Revision: https://reviews.llvm.org/D88715
 		2021-02-04 09:07:44 -08:00
..
bugpoint [tools] Use llvm::append_range (NFC) 2021-01-05 21:15:56 -08:00
bugpoint-passes
…
dsymutil [llvm] Drop unnecessary const from return types (NFC) 2021-01-31 10:23:43 -08:00
gold [LTO] Prevent devirtualization for symbols dynamically exported 2021-01-27 15:54:13 -08:00
llc [llc] Add reportError helper and canonicalize error messages 2021-01-26 15:33:37 -08:00
lli [ORC] Move Orc RPC code into Shared, rename some RPC types. 2020-12-30 12:48:20 +11:00
llvm-ar llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-as llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-as-fuzzer Fix several places that were calling verifyFunction or verifyModule without checking the return value. 2020-05-18 13:28:46 -07:00
llvm-bcanalyzer llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-c-test Fixes warning 'enumeration value not handled in switch'. 2020-12-30 06:56:29 -08:00
llvm-cat [tools] Use llvm::append_range (NFC) 2021-01-05 21:15:56 -08:00
llvm-cfi-verify [llvm] Use *Set::contains (NFC) 2021-01-11 18:48:07 -08:00
llvm-config [MinGW] Use lib prefix for libraries 2020-09-12 22:01:29 +03:00
llvm-cov [llvm] Use append_range (NFC) 2021-01-29 23:23:34 -08:00
llvm-cvtres [llvm] Don't include StringSwitch.h where unnecessary (NFC) 2021-01-21 19:59:48 -08:00
llvm-cxxdump llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-cxxfilt
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llvm-cxxmap llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-diff Switch from llvm::is_trivially_copyable to std::is_trivially_copyable 2020-12-02 22:02:48 -08:00
llvm-dis llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-dwarfdump [tools] Use llvm::append_range (NFC) 2021-01-05 21:15:56 -08:00
llvm-dwp [llvm-dwp] Automatically set the target triple 2021-01-25 11:58:54 +01:00
llvm-elfabi [llvm-elfabi] Add flag to preserve timestamp when output is the same 2020-12-29 20:27:06 -08:00
llvm-exegesis [llvm] Use *::empty (NFC) 2021-01-16 09:40:55 -08:00
llvm-extract llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-go
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llvm-gsymutil [tools] Use llvm::append_range (NFC) 2021-01-05 21:15:56 -08:00
llvm-ifs [llvm] Remove redundant string initialization (NFC) 2021-01-12 21:43:46 -08:00
llvm-isel-fuzzer [AIX] Turn -fdata-sections on by default in Clang 2020-10-14 15:58:31 +00:00
llvm-itanium-demangle-fuzzer
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llvm-jitlink [llvm-jitlink] Replace use of deprecated gethostbyname by getaddrinfo. 2021-01-29 03:11:16 -06:00
llvm-jitlistener [MCJIT] Profile the code generated by MCJIT engine using Intel VTune profiler 2020-11-16 19:28:14 +11:00
llvm-libtool-darwin llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-link [llvm-link] Improve link time for bitcode archives [NFC] 2021-01-19 16:41:28 -08:00
llvm-lipo [Target] Use llvm::any_of (NFC) 2020-12-24 19:43:26 -08:00
llvm-lto Revert "[LTO] Use lto::backend for code generation." 2021-02-03 22:49:30 +00:00
llvm-lto2 [LTO] Add support for existing Config::Freestanding option. 2021-01-22 13:45:39 +00:00
llvm-mc [llvm][clang][mlir] Add checks for the return values from Target::createXXX to prevent protential null deref 2020-11-21 21:04:12 -08:00
llvm-mc-assemble-fuzzer Add missing include Host.h in llvm-mc-* fuzzers. NFC. 2020-05-18 02:21:22 +07:00
llvm-mc-disassemble-fuzzer Add missing include Host.h in llvm-mc-* fuzzers. NFC. 2020-05-18 02:21:22 +07:00
llvm-mca [llvm-mca] Addressing build failures due to missing override specifiers 2021-01-21 17:32:18 -08:00
llvm-microsoft-demangle-fuzzer Give microsoftDemangle() an outparam for how many input bytes were consumed. 2020-05-20 16:17:31 -04:00
llvm-ml [ms] [llvm-ml] Support command-line defines 2020-12-01 18:06:05 -05:00
llvm-modextract llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-mt llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-nm [NFC][llvm-nm] Fix unused variable warning 2021-01-29 11:42:23 +08:00
llvm-objcopy [llvm-objcopy] -O binary: consider SHT_NOBITS sections to be empty 2021-02-01 15:01:25 -08:00
llvm-objdump [llvm-objdump] --source: drop the warning when there is no debug info 2021-02-04 09:07:44 -08:00
llvm-opt-fuzzer [FuzzMutate] Add mutator to modify instruction flags. 2021-01-23 19:05:20 +00:00
llvm-opt-report
…
llvm-pdbutil [llvm] Remove redundant return and continue statements (NFC) 2021-01-14 20:30:34 -08:00
llvm-profdata [CSSPGO] Support of CS profiles in extended binary format. 2021-01-27 21:29:46 -08:00
llvm-profgen [CSSPGO][llvm-profgen] Aggregate samples on call frame trie to speed up profile generation 2021-02-04 08:43:21 -08:00
llvm-rc [llvm-rc] Handle driveless absolute windows paths when loading external files 2020-12-10 14:11:06 +02:00
llvm-readobj [yaml2obj/obj2yaml/llvm-readobj] Support SHF_GNU_RETAIN 2021-02-02 09:19:53 -08:00
llvm-reduce [llvm-reduce] ReduceGlobalVarInitializers delta pass: fix handling of globals w/ comdat/non-external linkage 2021-01-07 18:05:03 +03:00
llvm-rtdyld [llvm][clang][mlir] Add checks for the return values from Target::createXXX to prevent protential null deref 2020-11-21 21:04:12 -08:00
llvm-shlib [Support] On Windows, add optional support for {rpmalloc|snmalloc|mimalloc} 2020-08-27 11:09:46 -04:00
llvm-size [llvm-cov] Use is_contained (NFC) 2020-12-27 09:57:25 -08:00
llvm-special-case-list-fuzzer
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llvm-split [LTO] Update splitCodeGen to take a reference to the module. (NFC) 2021-01-29 11:53:11 +00:00
llvm-stress [tools] Use llvm::append_range (NFC) 2021-01-05 21:15:56 -08:00
llvm-strings llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-symbolizer [llvm-symbolizer] - Fix the crash in GNU output style with --no-inlines and missing input file. 2021-01-30 18:36:38 +03:00
llvm-undname llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
llvm-xray [llvm] Use the default value of drop_begin (NFC) 2021-01-18 10:16:36 -08:00
llvm-yaml-numeric-parser-fuzzer [llvm] Use llvm::erase_value and llvm::erase_if (NFC) 2021-01-02 09:24:15 -08:00
llvm-yaml-parser-fuzzer [llvm] Use llvm::erase_value and llvm::erase_if (NFC) 2021-01-02 09:24:15 -08:00
lto [llvm] Use append_range (NFC) 2021-01-29 23:23:34 -08:00
msbuild
…
obj2yaml [obj2yaml, yaml2obj] Use Hex64 for BBAddressMap fields. 2021-02-01 15:37:30 -08:00
opt [LTO] Prevent devirtualization for symbols dynamically exported 2021-01-27 15:54:13 -08:00
opt-viewer
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remarks-shlib [tools][remarks-shlib] Don't build libRemarks.so without PIC 2020-09-20 12:40:21 +02:00
sancov [Support] Use InitLLVM in llvm-stress, sancov and TableGen 2020-07-28 07:50:45 -04:00
sanstats Internalize functions from various tools. NFC 2020-09-26 15:57:13 -07:00
split-file [split-file] Fix sys::fs::remove() on Solaris after D83834 2020-08-11 08:05:10 -07:00
verify-uselistorder llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
vfabi-demangle-fuzzer
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xcode-toolchain
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yaml2obj [llvm] Make obj2yaml and yaml2obj LLVM utilities instead of tools 2020-10-19 10:21:21 -07:00
CMakeLists.txt [Flang] add flang as a new subproject in cmake 2020-04-09 16:13:18 +01:00