Introduce kernel sub-module

Move functionality related to kernel symbolization and inspection into a
dedicated sub-module, kernel. In so doing we clean up the source root
somewhat and group closely related functionality. Ideally we'd move more
of the kernel resolver creation logic in there as well, but that is left
for a later time.

Signed-off-by: Daniel Müller <deso@posteo.net>

src/kernel/mod.rs

@@ -0,0 +1,7 @@
+mod ksym;
+mod resolver;
+
+// TODO: KsymResolver should ideally be an implementation detail.
+pub(crate) use ksym::KSymResolver;
+pub(crate) use ksym::KALLSYMS;
+pub(crate) use resolver::KernelResolver;

src/kernel.rs → src/kernel/resolver.rs

@@ -5,7 +5,6 @@ use std::path::Path;
 use std::rc::Rc;
 
 use crate::elf::ElfResolver;
-use crate::ksym::KSymResolver;
 use crate::symbolize::FindSymOpts;
 use crate::symbolize::Reason;
 use crate::symbolize::ResolvedSym;
@@ -14,6 +13,8 @@ use crate::Addr;
 use crate::Error;
 use crate::Result;
 
+use super::ksym::KSymResolver;
+
 
 pub(crate) struct KernelResolver {
     pub ksym_resolver: Option<Rc<KSymResolver>>,

src/lib.rs

@@ -67,7 +67,6 @@ mod gsym;
 mod insert_map;
 pub mod inspect;
 mod kernel;
-mod ksym;
 mod maps;
 mod mmap;
 pub mod normalize;

src/symbolize/symbolizer.rs

@@ -20,9 +20,9 @@ use crate::file_cache::FileCache;
 #[cfg(feature = "gsym")]
 use crate::gsym::GsymResolver;
 use crate::insert_map::InsertMap;
+use crate::kernel::KSymResolver;
 use crate::kernel::KernelResolver;
-use crate::ksym::KSymResolver;
-use crate::ksym::KALLSYMS;
+use crate::kernel::KALLSYMS;
 use crate::log;
 use crate::maps;
 use crate::maps::EntryPath;