HelenOS sources

PrintfQualifierMax  105 boot/generic/src/printf_core.c 	PrintfQualifierMax
PrintfQualifierMax  125 common/printf/printf_core.c 	PrintfQualifierMax
PrintfQualifierMax  125 kernel/generic/common/printf/printf_core.c 	PrintfQualifierMax
PrintfQualifierMax  125 uspace/lib/c/common/printf/printf_core.c 	PrintfQualifierMax

HelenOS homepage, sources at GitHub