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[llvm-nm] Allow --size-sort to print symbols with only Symbol size

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Summary:
When llvm-nm is passed only the --size-sort option for an object file, there is no output generated.
The commit modifies the behavior to print the symbols sorted and their size which is also inline with
the output of the GNU nm tool.

Signed-off-by: Saurabh Badhwar <sbsaurabhbadhwar9@gmail.com>

Reviewers: enderby, rupprecht

Reviewed By: rupprecht

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56063

llvm-svn: 351347
This commit is contained in:
Saurabh Badhwar 2019-01-16 14:38:22 +00:00
parent cc0fef1813
commit dff123d1a1
2 changed files with 13 additions and 2 deletions
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12
test/tools/llvm-nm/X86/size-sort.test Normal file
View File

@ -0,0 +1,12 @@
# RUN: llvm-nm --size-sort %p/Inputs/hello.obj.elf-x86_64 | FileCheck --check-prefix=SIZE-SORT-NO-ADDR %s
# RUN: llvm-nm --size-sort -S %p/Inputs/hello.obj.elf-x86_64 | FileCheck --check-prefix=SIZE-SORT-PRINT-ADDR %s
# RUN: llvm-nm -S %p/Inputs/hello.obj.elf-x86_64 | FileCheck --check-prefix=NO-SIZE-SORT-PRINT-ADDR %s
# SIZE-SORT-NO-ADDR: U puts
# SIZE-SORT-NO-ADDR: 0000000000000015 T main
# SIZE-SORT-PRINT-ADDR: U puts
# SIZE-SORT-PRINT-ADDR: 0000000000000000 0000000000000015 T main
# NO-SIZE-SORT-PRINT-ADDR: 0000000000000000 0000000000000015 T main
# NO-SIZE-SORT-PRINT-ADDR: U puts

3
tools/llvm-nm/llvm-nm.cpp
View File

@ -798,8 +798,7 @@ static void sortAndPrintSymbolList(SymbolicFile &Obj, bool printName,
bool Global = SymFlags & SymbolRef::SF_Global;
bool Weak = SymFlags & SymbolRef::SF_Weak;
if ((!Undefined && UndefinedOnly) || (Undefined && DefinedOnly) ||
(!Global && ExternalOnly) || (SizeSort && !PrintAddress) ||
(Weak && NoWeakSymbols))
(!Global && ExternalOnly) || (Weak && NoWeakSymbols))
continue;
if (PrintFileName)
writeFileName(outs());