That works, thanks Jim! Agreed that it is ugly though :-) -Chris
> On Dec 4, 2017, at 6:18 PM, Jim Ingham <jing...@apple.com> wrote: > > Yup, apparently debugserver tells us the stop is for exec directly so we > don't treat it as a breakpoint hit. That sorta makes sense, you don't want > to trigger a breakpoint hit every time you find a thread at the pc of a > breakpoint (might be a thread that hit a breakpoint, then didn't get to run > till the next stop.) But it defeats the obvious method. > > Anyway, it is a program stop, so you can use a stop hook: > > (lldb) target stop-hook add -n _dyld_start -o continue > > That one does work, though the stop-hook output is a little ugly. It would > also be nice to specify stop-hooks by stop reason too. But this method does > work... > > Jim > > >> On Dec 4, 2017, at 4:36 PM, Chris Lattner <sa...@nondot.org> wrote: >> >>> On Dec 4, 2017, at 4:25 PM, Chris Lattner <sa...@nondot.org> wrote: >>>> For macOS, you can also just do: >>>> >>>> (lldb) break set -n _dyld_start --skip-prologue 0 -s dyld >>>> Breakpoint 2: where = dyld`_dyld_start, address = 0x000000010000b19c >>>> (lldb) b com add -o continue >>>> either in your .lldbinit or in your debug session. >>> >>> This doesn’t appear to work, I tried both lldb and in a debug session. I’m >>> starting lldb with “lldb -- swiftc … “ if that matters. >>> >>> (lldb) break set -n _dyld_start --skip-prologue 0 -s dyld >>> Breakpoint 1: where = dyld`_dyld_start, address = 0x0000000000001000 >>> (lldb) b com add -o continue >>> Breakpoint 2: no locations (pending). >>> WARNING: Unable to resolve breakpoint to any actual locations. >> >> I realize that this is probably because you’re not using the standard ‘b’ >> alias. When I use ‘br’, the command succeeds, but I still stop on launch: >> >> (lldb) br com add -o continue >> (lldb) r >> There is a running process, kill it and restart?: [Y/n] y >> Process 24049 exited with status = 9 (0x00000009) >> Process 24054 launched: >> '/Users/clattner/Projects/build/Xcode-ReleaseAssert+swift-DebugAssert/swift-macosx-x86_64/Debug/bin/swiftc' >> (x86_64) >> Process 24054 stopped >> * thread #2, stop reason = exec >> frame #0: 0x0000000109852000 dyld`_dyld_start >> dyld`_dyld_start: >> -> 0x109852000 <+0>: popq %rdi >> 0x109852001 <+1>: pushq $0x0 >> 0x109852003 <+3>: movq %rsp, %rbp >> 0x109852006 <+6>: andq $-0x10, %rsp >> Target 0: (swiftc) stopped. >> >> >> Thank you for the help, I appreciate it! >> >> -Chris >> > _______________________________________________ lldb-dev mailing list lldb-dev@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev
