mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 16:24:13 +08:00
b8a94bfb33
Rust symbols can become quite long due to namespacing introduced
by modules, types, traits, generics, etc. For instance,
the following code:
pub mod my_module {
pub struct MyType;
pub struct MyGenericType<T>(T);
pub trait MyTrait {
fn my_method() -> u32;
}
impl MyTrait for MyGenericType<MyType> {
fn my_method() -> u32 {
42
}
}
}
generates a symbol of length 96 when using the upcoming v0 mangling scheme:
_RNvXNtCshGpAVYOtgW1_7example9my_moduleINtB2_13MyGenericTypeNtB2_6MyTypeENtB2_7MyTrait9my_method
At the moment, Rust symbols may reach up to 300 in length.
Setting 512 as the maximum seems like a reasonable choice to
keep some headroom.
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com>
Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com>
Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com>
Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com>
Co-developed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Gary Guo <gary@garyguo.net>
Co-developed-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
30 lines
618 B
C
30 lines
618 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __TOOLS_KALLSYMS_H_
|
|
#define __TOOLS_KALLSYMS_H_ 1
|
|
|
|
#include <elf.h>
|
|
#include <linux/ctype.h>
|
|
#include <linux/types.h>
|
|
|
|
#ifndef KSYM_NAME_LEN
|
|
#define KSYM_NAME_LEN 512
|
|
#endif
|
|
|
|
static inline u8 kallsyms2elf_binding(char type)
|
|
{
|
|
if (type == 'W')
|
|
return STB_WEAK;
|
|
|
|
return isupper(type) ? STB_GLOBAL : STB_LOCAL;
|
|
}
|
|
|
|
u8 kallsyms2elf_type(char type);
|
|
|
|
bool kallsyms__is_function(char symbol_type);
|
|
|
|
int kallsyms__parse(const char *filename, void *arg,
|
|
int (*process_symbol)(void *arg, const char *name,
|
|
char type, u64 start));
|
|
|
|
#endif /* __TOOLS_KALLSYMS_H_ */
|