kopia lustrzana https://github.com/espressif/esp-idf
docs: fix the number of breakpoints and watchpoints for RISC-V chips
Ivan Grokhotkov
rodzic
56efeb2c76
commit
78af134110
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@ -2,6 +2,10 @@ Tips and Quirks
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---------------
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:link_to_translation:`zh_CN:[中文]`
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.. See SOC_CPU_BREAKPOINTS_NUM, SOC_CPU_WATCHPOINTS_NUM in soc_caps.h
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{IDF_TARGET_CPU_BREAKPOINT_NUM:default="Not updated", esp32="2", esp32s2="2", esp32s3="2", esp32c3="8", esp32c2="2", "esp32c6"="4", "esp32h2"="8"}
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{IDF_TARGET_CPU_WATCHPOINT_NUM:default="Not updated", esp32="2", esp32s2="2", esp32s3="2", esp32c3="8", esp32c2="2", "esp32c6"="4", "esp32h2"="8"}
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This section provides collection of all tips and quirks referred to from various parts of this guide.
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.. _jtag-debugging-tip-breakpoints:
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@ -9,7 +13,7 @@ This section provides collection of all tips and quirks referred to from various
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Breakpoints and watchpoints available
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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{IDF_TARGET_NAME} debugger supports 2 hardware implemented breakpoints and 64 software ones. Hardware breakpoints are implemented by {IDF_TARGET_NAME} chip's logic and can be set anywhere in the code: either in flash or IRAM program's regions. Additionally there are 2 types of software breakpoints implemented by OpenOCD: flash (up to 32) and IRAM (up to 32) breakpoints. Currently GDB can not set software breakpoints in flash. So until this limitation is removed those breakpoints have to be emulated by OpenOCD as hardware ones (see :ref:`below <jtag-debugging-tip-where-breakpoints>` for details). {IDF_TARGET_NAME} also supports two watchpoints, so two variables can be watched for change or read by the GDB command ``watch myVariable``. Note that menuconfig option :ref:`CONFIG_FREERTOS_WATCHPOINT_END_OF_STACK` uses the 2nd watchpoint and will not provide expected results, if you also try to use it within OpenOCD / GDB. See menuconfig's help for detailed description.
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{IDF_TARGET_NAME} debugger supports {IDF_TARGET_CPU_BREAKPOINT_NUM} hardware implemented breakpoints and 64 software ones. Hardware breakpoints are implemented by {IDF_TARGET_NAME} chip's logic and can be set anywhere in the code: either in flash or IRAM program's regions. Additionally there are 2 types of software breakpoints implemented by OpenOCD: flash (up to 32) and IRAM (up to 32) breakpoints. Currently GDB can not set software breakpoints in flash. So until this limitation is removed those breakpoints have to be emulated by OpenOCD as hardware ones (see :ref:`below <jtag-debugging-tip-where-breakpoints>` for details). {IDF_TARGET_NAME} also supports {IDF_TARGET_CPU_WATCHPOINT_NUM} watchpoints, so {IDF_TARGET_CPU_WATCHPOINT_NUM} variables can be watched for change or read by the GDB command ``watch myVariable``. Note that menuconfig option :ref:`CONFIG_FREERTOS_WATCHPOINT_END_OF_STACK` uses the last watchpoint and will not provide expected results, if you also try to use it within OpenOCD / GDB. See menuconfig's help for detailed description.
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.. _jtag-debugging-tip-where-breakpoints:
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@ -2,6 +2,10 @@
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------------------
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:link_to_translation:`en:[English]`
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.. See SOC_CPU_BREAKPOINTS_NUM, SOC_CPU_WATCHPOINTS_NUM in soc_caps.h
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{IDF_TARGET_CPU_BREAKPOINT_NUM:default="Not updated", esp32="2", esp32s2="2", esp32s3="2", esp32c3="8", esp32c2="2", "esp32c6"="4", "esp32h2"="8"}
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{IDF_TARGET_CPU_WATCHPOINT_NUM:default="Not updated", esp32="2", esp32s2="2", esp32s3="2", esp32c3="8", esp32c2="2", "esp32c6"="4", "esp32h2"="8"}
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本节提供了本指南中各部分提到的一些注意事项和补充内容。
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.. _jtag-debugging-tip-breakpoints:
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@ -9,7 +13,7 @@
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可用的断点和观察点
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^^^^^^^^^^^^^^^^^^
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{IDF_TARGET_NAME} 调试器支持 2 个硬件断点和 64 个软件断点。硬件断点是由 {IDF_TARGET_NAME} 芯片内部的逻辑电路实现的，能够设置在代码的任何位置：闪存或者 IRAM 的代码区域。除此以外，OpenOCD 实现了两种软件断点：闪存断点（最多 32 个）和 IRAM 断点（最多 32 个）。目前 GDB 无法在闪存中设置软件断点，因此除非解决此限制，否则这些断点只能由 OpenOCD 模拟为硬件断点。（详细信息可以参阅 :ref:`下面 <jtag-debugging-tip-where-breakpoints>`）。{IDF_TARGET_NAME} 还支持 2 个观察点，所以可以观察两个变量的变化或者通过 GDB 命令 ``watch myVariable`` 来读取变量的值。请注意 menuconfig 中的 :ref:`CONFIG_FREERTOS_WATCHPOINT_END_OF_STACK` 选项会使用第二个观察点，如果你想在 OpenOCD 或者 GDB 中再次尝试使用这个观察点，可能不会得到预期的结果。详情请查看 menuconfig 中的帮助文档。
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{IDF_TARGET_NAME} 调试器支持 {IDF_TARGET_CPU_BREAKPOINT_NUM} 个硬件断点和 64 个软件断点。硬件断点是由 {IDF_TARGET_NAME} 芯片内部的逻辑电路实现的，能够设置在代码的任何位置：闪存或者 IRAM 的代码区域。除此以外，OpenOCD 实现了两种软件断点：闪存断点（最多 32 个）和 IRAM 断点（最多 32 个）。目前 GDB 无法在闪存中设置软件断点，因此除非解决此限制，否则这些断点只能由 OpenOCD 模拟为硬件断点（详细信息可以参阅 :ref:`下面 <jtag-debugging-tip-where-breakpoints>`）。{IDF_TARGET_NAME} 还支持 {IDF_TARGET_CPU_WATCHPOINT_NUM} 个观察点，所以可以观察 {IDF_TARGET_CPU_WATCHPOINT_NUM} 个变量的变化或者通过 GDB 命令 ``watch myVariable`` 来读取变量的值。请注意 menuconfig 中的 :ref:`CONFIG_FREERTOS_WATCHPOINT_END_OF_STACK` 选项会使用最后一个观察点，如果你想在 OpenOCD 或者 GDB 中再次尝试使用这个观察点，可能不会得到预期的结果。详情请查看 menuconfig 中的帮助文档。
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.. _jtag-debugging-tip-where-breakpoints:
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