https://github.com/jimingham created https://github.com/llvm/llvm-project/pull/81041
mach-o object files never have separate debug info, and in a big app there can be quite a large number of object files, so even a few stats per object file can slow launches considerably. This patch avoids this search for Mach-o symbol files of object type. I don't have a way to test this, the only effect is that you didn't do a bunch of stats that weren't going to do any good anyway. >From 787d48cd3e2af5478f05986268e91d1bfb5a4c30 Mon Sep 17 00:00:00 2001 From: Jim Ingham <jing...@apple.com> Date: Wed, 7 Feb 2024 13:00:55 -0800 Subject: [PATCH] Don't search for separate debug files for mach-o object files mach-o object files never have separate debug info, and in a big app there can be quite a large number of object files, so even a few stats per object file can slow launches considerably. This patch avoids this search for Mach-o symbol files of object type. I don't have a way to test this, the only effect is that you didn't do a bunch of stats that weren't going to do any good anyway. --- .../Plugins/SymbolVendor/MacOSX/SymbolVendorMacOSX.cpp | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/lldb/source/Plugins/SymbolVendor/MacOSX/SymbolVendorMacOSX.cpp b/lldb/source/Plugins/SymbolVendor/MacOSX/SymbolVendorMacOSX.cpp index 47fe0020ce18d..4080a31224a41 100644 --- a/lldb/source/Plugins/SymbolVendor/MacOSX/SymbolVendorMacOSX.cpp +++ b/lldb/source/Plugins/SymbolVendor/MacOSX/SymbolVendorMacOSX.cpp @@ -118,7 +118,13 @@ SymbolVendorMacOSX::CreateInstance(const lldb::ModuleSP &module_sp, FileSpec dsym_fspec(module_sp->GetSymbolFileFileSpec()); ObjectFileSP dsym_objfile_sp; - if (!dsym_fspec) { + // On Darwin, we store the debug information either in object files, + // using the debug map to tie them to the executable, or in a dSYM. We + // pass through this routine both for binaries and for .o files, but in the + // latter case there will never be an external debug file. So we shouldn't + // do all the stats needed to find it. + if (!dsym_fspec && module_sp->GetObjectFile()->CalculateType() + != ObjectFile::eTypeObjectFile) { // No symbol file was specified in the module, lets try and find one // ourselves. FileSpec file_spec = obj_file->GetFileSpec(); _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits