Commit 2f0f2a33 authored by Denys Vlasenko's avatar Denys Vlasenko Committed by Rusty Russell
Browse files

module: turn longs into ints for module sizes 



This shrinks module.o and each *.ko file.

And finally, structure members which hold length of module
code (four such members there) and count of symbols
are converted from longs to ints.

We cannot possibly have a module where 32 bits won't
be enough to hold such counts.

For one, module loading checks module size for sanity
before loading, so such insanely big module will fail
that test first.

Signed-off-by: default avatarDenys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent f7f5b675

include/linux/module.h

+3 −3
Original line number Diff line number Diff line
@@ -288,10 +288,10 @@ struct module 
	void *module_core;



	/* Here are the sizes of the init and core sections */

	unsigned long init_size, core_size;

	unsigned int init_size, core_size;



	/* The size of the executable code in each section.  */

	unsigned long init_text_size, core_text_size;

	unsigned int init_text_size, core_text_size;



	/* The handle returned from unwind_add_table. */

	void *unwind_info;
@@ -311,7 +311,7 @@ struct module 
#ifdef CONFIG_KALLSYMS

	/* We keep the symbol and string tables for kallsyms. */

	Elf_Sym *symtab;

	unsigned long num_symtab;

	unsigned int num_symtab;

	char *strtab;



	/* Section attributes */

kernel/module.c

+2 −2
Original line number Diff line number Diff line
@@ -1567,7 +1567,7 @@ static int simplify_symbols(Elf_Shdr *sechdrs, 
}



/* Update size with this section: return offset. */

static long get_offset(unsigned long *size, Elf_Shdr *sechdr)

static long get_offset(unsigned int *size, Elf_Shdr *sechdr)

{

	long ret;
@@ -2562,7 +2562,7 @@ static int m_show(struct seq_file *m, void *p) 
	struct module *mod = list_entry(p, struct module, list);

	char buf[8];



	seq_printf(m, "%s %lu",

	seq_printf(m, "%s %u",

		   mod->name, mod->init_size + mod->core_size);

	print_unload_info(m, mod);

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