diff options
Diffstat (limited to 'Kconfig')
| -rw-r--r-- | Kconfig | 15 |
1 files changed, 11 insertions, 4 deletions
@@ -277,10 +277,17 @@ config SYS_MALLOC_F_LEN default 0x10000 if ARCH_IMX8 || ARCH_IMX8M default 0x2000 help - Before relocation, memory is very limited on many platforms. Still, - we can provide a small malloc() pool if needed. Driver model in - particular needs this to operate, so that it can allocate the - initial serial device and any others that are needed. + Size of the malloc() pool for use before relocation. If + this is defined, then a very simple malloc() implementation + will become available before relocation. The address is just + below the global data, and the stack is moved down to make + space. + + This feature allocates regions with increasing addresses + within the region. calloc() is supported, but realloc() + is not available. free() is supported but does nothing. + The memory will be freed (or in fact just forgotten) when + U-Boot relocates itself. config SYS_MALLOC_LEN hex "Define memory for Dynamic allocation" |