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| author | Wojtek Kosior <kwojtus@protonmail.com> | 2019-12-31 13:50:14 +0100 |
|---|---|---|
| committer | Wojtek Kosior <kwojtus@protonmail.com> | 2019-12-31 13:50:14 +0100 |
| commit | 7dcea5fdafe66d8bcf1eeacbaf3f3f3b1c258dfc (patch) | |
| tree | b56d111955ab45215caf11bd3b2ba6560d14c171 /memory.h | |
| parent | 3387b288a53422131f22f1fc96168a128edc9902 (diff) | |
| download | rpi-MMU-example-7dcea5fdafe66d8bcf1eeacbaf3f3f3b1c258dfc.tar.gz rpi-MMU-example-7dcea5fdafe66d8bcf1eeacbaf3f3f3b1c258dfc.zip | |
implement basic memory section allocation for processes
Diffstat (limited to 'memory.h')
| -rw-r--r-- | memory.h | 6 |
1 files changed, 6 insertions, 0 deletions
@@ -25,6 +25,8 @@ extern char __end; extern char __start; extern char _translation_table_start; extern char _translation_table_end; +extern char _sections_list_start; +extern char _sections_list_end; extern char _stack_start; extern char _stack_top; extern char _unprivileged_memory_start; @@ -37,6 +39,10 @@ extern char _unprivileged_memory_end; #define TRANSLATION_TABLE_BASE ((size_t) &_translation_table_start) #define TRANSLATION_TABLE_END ((size_t) &_translation_table_end) +// another 32KB after the translation table are used for sections list +#define SECTIONS_LIST_START ((size_t) &_sections_list_start) +#define SECTIONS_LIST_END ((size_t) &_sections_list_end) + // first section after the translation table is left unused; // the next section is used as the stack #define STACK_START ((size_t) &_stack_start) |