[Lldb-commits] [lldb] [lldb] Update help message of `(lldb) b` (PR #149114)

[via lldb-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-lldb

Author: None (royitaqi)

<details>
<summary>Changes</summary>

`(lldb) b` can be used in two different ways:
1. Running `b` without arguments, it lists all existing breakpoints.
2. Running `b` with additional arguments, it adds breakpoints.

However, the help message doesn't mention the first use case.  This patch adds 
help message to mention it by adding "List all breakpoints, or ...".

**Without patch**:
```
(lldb) help b
Set a breakpoint using one of several shorthand formats.  Expects 'raw' input 
(see 'help raw-input'.)

Syntax:
_regexp-break &lt;filename&gt;:&lt;linenum&gt;:&lt;colnum&gt;
              main.c:12:21          // Break at line 12 and column 21 of main.c
...


(lldb) apropos breakpoint
  b                         -- Set a breakpoint using one of several shorthand 
formats.
```

**With patch**:
```
(lldb) help b
List all breakpoints, or set a breakpoint using one of several shorthand 
formats.  Expects 'raw' input (see 'help raw-input'.)

Syntax:
_regexp-break &lt;filename&gt;:&lt;linenum&gt;:&lt;colnum&gt;
              main.c:12:21          // Break at line 12 and column 21 of main.c
...


(lldb) apropos breakpoint
  b                         -- List all breakpoints, or set a breakpoint using 
one of several shorthand formats.
```


---
Full diff: https://github.com/llvm/llvm-project/pull/149114.diff


1 Files Affected:

- (modified) lldb/source/Interpreter/CommandInterpreter.cpp (+2-1) 


``````````diff
diff --git a/lldb/source/Interpreter/CommandInterpreter.cpp 
b/lldb/source/Interpreter/CommandInterpreter.cpp
index 00c3472444d2e..2d8ab7bf3bbf4 100644
--- a/lldb/source/Interpreter/CommandInterpreter.cpp
+++ b/lldb/source/Interpreter/CommandInterpreter.cpp
@@ -616,7 +616,8 @@ void CommandInterpreter::LoadCommandDictionary() {
   std::unique_ptr<CommandObjectRegexCommand> break_regex_cmd_up(
       new CommandObjectRegexCommand(
           *this, "_regexp-break",
-          "Set a breakpoint using one of several shorthand formats.",
+          "List all breakpoints, or set a breakpoint using one of several "
+          "shorthand formats.",
           "\n"
           "_regexp-break <filename>:<linenum>:<colnum>\n"
           "              main.c:12:21          // Break at line 12 and column "

``````````

</details>


https://github.com/llvm/llvm-project/pull/149114
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