| { |
| "printf": { |
| "LIBC_CONF_PRINTF_DISABLE_FLOAT": { |
| "value": false, |
| "doc": "Disable printing floating point values in printf and friends." |
| }, |
| "LIBC_CONF_PRINTF_DISABLE_INDEX_MODE": { |
| "value": false, |
| "doc": "Disable index mode in the printf format string." |
| }, |
| "LIBC_CONF_PRINTF_DISABLE_WRITE_INT": { |
| "value": false, |
| "doc": "Disable handling of %n in printf format string." |
| }, |
| "LIBC_CONF_PRINTF_FLOAT_TO_STR_USE_MEGA_LONG_DOUBLE_TABLE": { |
| "value": false, |
| "doc": "Use large table for better printf long double performance." |
| }, |
| "LIBC_CONF_PRINTF_DISABLE_FIXED_POINT": { |
| "value": false, |
| "doc": "Disable printing fixed point values in printf and friends." |
| } |
| }, |
| "string": { |
| "LIBC_CONF_STRING_UNSAFE_WIDE_READ": { |
| "value": false, |
| "doc": "Read more than a byte at a time to perform byte-string operations like strlen." |
| }, |
| "LIBC_CONF_MEMSET_X86_USE_SOFTWARE_PREFETCHING": { |
| "value": false, |
| "doc": "Inserts prefetch for write instructions (PREFETCHW) for memset on x86 to recover performance when hardware prefetcher is disabled." |
| } |
| }, |
| "codegen": { |
| "LIBC_CONF_KEEP_FRAME_POINTER": { |
| "value": true, |
| "doc": "Keep frame pointer in functions for better debugging experience." |
| }, |
| "LIBC_CONF_ENABLE_STRONG_STACK_PROTECTOR": { |
| "value": true, |
| "doc": "Enable -fstack-protector-strong to defend against stack smashing attack." |
| } |
| } |
| } |
