drivertest/Makefile: add CONFIG_BUILD_FLAT limit for drivertest_block.c #2695
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xiaoxiang781216
approved these changes
Oct 11, 2024
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Thank you @wyr-7 :-) Can you elaborate a bit more on what that change does and what are benefits / restrictions? Its good to put this kind of short description in the commit body so the change is self-explanatory :-) |
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Ok, I have added. |
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xiaoxiang781216
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Oct 14, 2024
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It seems unrelated to this PR. |
If BUILD_FLAT is not enabled, the app and CPU run in user mode and kernel mode respectively. The kernel and app are in different memory address spaces. Different apps are in the same memory address space. drivertest_block.c cannot directly call the kernel API. Signed-off-by: Yongrong Wang <wangyongrong@xiaomi.com>
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GUIDINGLI
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Oct 16, 2024
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Summary
If BUILD_FLAT is not enabled, the app and CPU run in user mode and kernel mode respectively. The kernel and app are in different memory address spaces. Different apps are in the same memory address space. drivertest_block.c cannot directly call the kernel API.
Impact
Rpmsg blk driver test
Testing
Test in vela