diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/guides/mrbconf.md | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/doc/guides/mrbconf.md b/doc/guides/mrbconf.md index c24213743..e71346ae6 100644 --- a/doc/guides/mrbconf.md +++ b/doc/guides/mrbconf.md @@ -151,9 +151,18 @@ largest value of required alignment. ## Reduce heap memory configuration +`MRB_USE_ETEXT_RO_DATA_P` + +* Use `etext` and `edata` section addresses defined by the linker to detect read-only data. +* Those addresses are widely available, but not portable, nor standardized. +* This macro is defined by default on User-mode Linux. + +`MRB_NO_DEFAULT_RO_DATA_P` + +* Define this macro when the default `mrb_ro_data_p()` does not work for any reason. + `MRB_USE_CUSTOM_RO_DATA_P` -* Takes precedence over `MRB_USE_LINK_TIME_RO_DATA_P`. * Please try if `MRB_USE_LINK_TIME_RO_DATA_P` is not available. * The `mrb_ro_data_p()` function is implemented by the user in an arbitrary file. * The prototype declaration is `mrb_bool mrb_ro_data_p(const char *ptr)`. |