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[victoriafalls] Read some of the ext2 superblock as a POC

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Drew Galbraith 2023-07-05 16:03:46 -07:00
parent 29d9923f5a
commit 0274339cc9
3 changed files with 21 additions and 0 deletions
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19
sys/victoriafalls/victoriafalls.cpp
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@ -1,9 +1,28 @@
#include <mammoth/debug.h>
#include <mammoth/init.h>
#include <yellowstone_stub.h>
struct Superblock {
uint32_t inode_count;
uint32_t blocks_count;
uint32_t reserved_blocks_count;
uint32_t free_blocks_count;
uint32_t free_inodes_count;
};
uint64_t main(uint64_t init_cap) {
ParseInitPort(init_cap);
dbgln("VFs Started");
YellowstoneStub yellowstone(gInitEndpointCap);
ASSIGN_OR_RETURN(ScopedDenaliClient denali, yellowstone.GetDenali());
ASSIGN_OR_RETURN(MappedMemoryRegion region, denali.ReadSectors(2, 2));
Superblock* super = reinterpret_cast<Superblock*>(region.vaddr());
dbgln("Inodes: %x / %x", super->free_inodes_count, super->inode_count);
dbgln("Blocks: %x / %x", super->free_blocks_count, super->blocks_count);
return 0;
}