feat(libc): implement buffered I/O for fputc#36
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…interrupt handling
- Added lazy buffer allocation using malloc - Implemented line buffering (flush on '\n') - Added fflush() support - Reduces syscall overhead for userland output
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Summary
This PR optimizes userland output by implementing a buffered approach for
fputcinlibc.c.Changes
writesyscalls per character with a 1KB buffer.mallocon the first write attempt.fflush(FILE *stream)to manually clear the buffer.This significantly reduces syscall overhead for standard output and error streams.