arch/arm: change up_saveusercontext to assembly code #9019
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minidump will backtrace failure when use C code to save user context, because the stack push operation in C code can disrupt the stack information. Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
minidump will backtrace failure when use C code to save user context, because the stack push operation in C code can disrupt the stack information. Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
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@masayuki2009 Any feedback? |
xiaoxiang781216
approved these changes
Apr 21, 2023
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Summary
gdb will backtrace failure when use C code to save user context, because the stack push operation in C code can disrupt the stack information.
Impact
debug
Testing
tools/checkpatch.sh