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doc: sandbox: Add a note of disabling LTO when using gdb

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Image created by LTO is not friendly to debugger, let's document this.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

Mention CONFIG_CC_OPTIMIZE_FOR_DEBUG and LLDB.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Bin Meng 2022-05-18 00:21:29 +08:00 committed by Heinrich Schuchardt
parent 27267c61b1
commit 783f2c879d
1 changed files with 3 additions and 0 deletions
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doc/arch/sandbox.rst
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@ -477,6 +477,9 @@ board_init_f() and board_init_r().
This approach can be used on normal boards as well as sandbox.
For debugging with GDB or LLDB, it is preferable to reduce the compiler
optimization level (CONFIG_CC_OPTIMIZE_FOR_DEBUG=y) and to disable Link Time
Optimization (CONFIG_LTO=n).
SDL_CONFIG
----------