restored test/debugger-mi

[paolopas]

also fixed typo in debugger.cpp break help

It's always an honor to get your hands on Watanabe's stuff.

[grafikrobot]

Running this locally, after rebasing on latest main commit, I get an std assert (for debug b2 build):

/usr/include/c++/15.2.1/bits/stl_vector.h:1263: std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = char*; _Alloc = std::allocator<char*>; reference = char*&; size_type = long unsigned int]: Assertion '__n < this->size()' failed.

And running the not-debug B2 core dumps. Can you rebase this and investigate?

[paolopas]

I tried using both the topic (rebased) branch and the current main (with changes plugged).
I tried to compile with my make and with b2 (both release and debug).

But no diagnostic messages or other issues.

[paolopas]

But looking closely, the b2 build does do one bad thing. And that also explains the problems we've had in the past.

$ ./src/engine/b2 b2 debug
...patience...
...found 307 targets...
...updating 74 targets...
gcc.compile.c++ .build/gcc-10/debug/cxxstd-11-iso/threading-multi/src/engine/w32_getreg.o

. . .

gcc.link .build/gcc-10/debug/cxxstd-11-iso/threading-multi/yyacc
Jamfile</home/pax/Job/B2/github/b2>.yyacc src/engine/jamgram.y
gcc.compile.c++ .build/gcc-10/debug/cxxstd-11-iso/threading-multi/src/engine/tasks.o
Jamfile</home/pax/Job/B2/github/b2>.grammar src/engine/jamgram.cpp
gcc.compile.c++ .build/gcc-10/debug/cxxstd-11-iso/threading-multi/src/engine/startup.o
gcc.compile.c++ .build/gcc-10/debug/cxxstd-11-iso/threading-multi/src/engine/rules.o
gcc.compile.c++ .build/gcc-10/debug/cxxstd-11-iso/threading-multi/src/engine/scan.o
gcc.compile.c++ .build/gcc-10/debug/cxxstd-11-iso/threading-multi/jamgram.o

. . .

gcc.link .build/gcc-10/debug/cxxstd-11-iso/threading-multi/b2

...updated 74 targets...
$ git status
On branch debby
Your branch is ahead of 'origin/debby' by 2 commits.
  (use "git push" to publish your local commits)

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
	modified:   src/engine/jamgram.cpp
	modified:   src/engine/jamgram.hpp
no changes added to commit (use "git add" and/or "git commit -a")
$ git diff
diff --git a/src/engine/jamgram.cpp b/src/engine/jamgram.cpp
index afc54d43e..bea45c0c8 100644
--- a/src/engine/jamgram.cpp
+++ b/src/engine/jamgram.cpp
@@ -1,8 +1,8 @@
-/* A Bison parser, made by GNU Bison 3.8.2.  */
+/* A Bison parser, made by GNU Bison 3.5.  */
 
 /* Bison implementation for Yacc-like parsers in C
 
-   Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2021 Free Software Foundation,
+   Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2019 Free Software Foundation,
. . .

But apart from the modification of the jamgrams.* which is difficult to even notice, there were no problems.

[grafikrobot]

But apart from the modification of the jamgrams.* which is difficult to even notice, there were no problems.

Oh, fun. I guess something in my system is making it behave differently enough. :-)