From b39927cf4cc5a9123d2b157ffd396884cb8156eb Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Fri, 17 Feb 2006 22:42:02 +0100 Subject: kbuild: check for section mismatch during modpost stage Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg --- scripts/mod/modpost.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'scripts/mod/modpost.h') diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h index c0de7b98c24..3b5319dd937 100644 --- a/scripts/mod/modpost.h +++ b/scripts/mod/modpost.h @@ -16,17 +16,27 @@ #define Elf_Ehdr Elf32_Ehdr #define Elf_Shdr Elf32_Shdr #define Elf_Sym Elf32_Sym +#define Elf_Addr Elf32_Addr +#define Elf_Section Elf32_Section #define ELF_ST_BIND ELF32_ST_BIND #define ELF_ST_TYPE ELF32_ST_TYPE +#define Elf_Rela Elf32_Rela +#define ELF_R_SYM ELF32_R_SYM +#define ELF_R_TYPE ELF32_R_TYPE #else #define Elf_Ehdr Elf64_Ehdr #define Elf_Shdr Elf64_Shdr #define Elf_Sym Elf64_Sym +#define Elf_Addr Elf64_Addr +#define Elf_Section Elf64_Section #define ELF_ST_BIND ELF64_ST_BIND #define ELF_ST_TYPE ELF64_ST_TYPE +#define Elf_Rela Elf64_Rela +#define ELF_R_SYM ELF64_R_SYM +#define ELF_R_TYPE ELF64_R_TYPE #endif #if KERNEL_ELFDATA != HOST_ELFDATA -- cgit v1.2.3