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12-Jun-2013 |
Greg Clayton <gclayton@apple.com> |
Huge performance improvements when one breakpoint contains many locations.
325,000 breakpoints for running "breakpoint set --func-regex ." on lldb itself (after hitting a breakpoint at main so that LLDB.framework is loaded) used to take up to an hour to set, now we are down under a minute. With warm file caches, we are at 40 seconds, and that is with setting 325,000 breakpoint through the GDB remote API. Linux and the native debuggers might be faster. I haven't timed what how much is debug info parsing and how much is the protocol traffic to/from GDB remote.
That there were many performance issues. Most of them were due to storing breakpoints in the wrong data structures, or using the wrong iterators to traverse the lists, traversing the lists in inefficient ways, and not optimizing certain function name lookups/symbol merges correctly.
Debugging after that is also now very efficient. There were issues with replacing the breakpoint opcodes in memory that was read, and those routines were also fixed.
git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@183820 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/tools/debugserver/source/DNBBreakpoint.h
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| 4d4ff9e8f7746ba1b1d597512b7cb711350c0206 |
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21-May-2013 |
Greg Clayton <gclayton@apple.com> |
<rdar://problem/13892516>
LLDB can now debug across calls to exec when the architecture changes from say i386 to x86_64 (on darwin).
git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@182345 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/tools/debugserver/source/DNBBreakpoint.h
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| 31d8918cb12fa1f715920db37a2290b3911e62ee |
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06-Sep-2011 |
Johnny Chen <johnny.chen@apple.com> |
DNBBreakpoint::SetEnabled() should take a bool, not a uint32_t, as its input argument.
Plus for watchpoint related functions, add new macros INVALID_NUB_WATCH_ID and
NUB_WATCH_ID_IS_VALID and use them, instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@139163 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/tools/debugserver/source/DNBBreakpoint.h
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| 24943d2ee8bfaa7cf5893e4709143924157a5c1e |
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08-Jun-2010 |
Chris Lattner <sabre@nondot.org> |
Initial checkin of lldb code from internal Apple repo.
git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@105619 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/tools/debugserver/source/DNBBreakpoint.h
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