[Lldb-commits] [PATCH] D62503: Add ReadCStringFromMemory for faster string reads

[Raphael Isemann via Phabricator via lldb-commits]

teemperor added a comment.

It seems to break looking up symbols from shared libraries. A simple reproducer is debugging a simple "Hello World" program in C on Linux (Arch Linux in my case, but it seems to also affect other distributions)

  #include <stdio.h>
  
  int main() {
    printf("Hello World\n");
  }

and then trying to eval printf:

  (lldb) target create "printftest"
  Current executable set to 'printftest' (x86_64).
  (lldb) b main
  Breakpoint 1: where = printftest`main + 8 at main.cpp:4:3, address = 0x0000000000001108
  (lldb) r
  Process 56813 launched: '/home/teemperor/llvm/test/printftest' (x86_64)
  Process 56813 stopped
  * thread #1, name = 'printftest', stop reason = breakpoint 1.1
      frame #0: 0x0000555555555108 printftest`main at main.cpp:4:3
     1    #include <stdio.h>
     2   
     3    int main() {
  -> 4      printf("Hello World\n");
     5    }
  (lldb) p printf("a")
  error: Couldn't lookup symbols:
    printf


Repository:
  rL LLVM

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  https://reviews.llvm.org/D62503/new/

https://reviews.llvm.org/D62503