diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2023-06-06 12:38:32 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-06-14 05:46:42 +0300 |
| commit | 606787fed7268feb256957872586370b56af697a (patch) | |
| tree | b9372125a732971e6d309a8b4dea1ebd70b20937 /arch/powerpc | |
| parent | aec0ba7472a7b0c1c293932e7978197f1489a332 (diff) | |
| download | linux-606787fed7268feb256957872586370b56af697a.tar.xz | |
powerpc/64s: Remove support for ELFv1 little endian userspace
ELFv2 was introduced together with little-endian. ELFv1 with LE has
never been a thing. The GNU toolchain can create such a beast, but
anyone doing that is a maniac who needs to be stopped so I consider
this patch a feature.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230606093832.199712-5-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/elf.h | 6 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/thread_info.h | 6 |
2 files changed, 11 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h index 79f1c480b5eb..a26ca097d032 100644 --- a/arch/powerpc/include/asm/elf.h +++ b/arch/powerpc/include/asm/elf.h @@ -12,8 +12,14 @@ /* * This is used to ensure we don't load something for the wrong architecture. + * 64le only supports ELFv2 64-bit binaries (64be supports v1 and v2). */ +#if defined(CONFIG_PPC64) && defined(CONFIG_CPU_LITTLE_ENDIAN) +#define elf_check_arch(x) (((x)->e_machine == ELF_ARCH) && \ + (((x)->e_flags & 0x3) == 0x2)) +#else #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) +#endif #define compat_elf_check_arch(x) ((x)->e_machine == EM_PPC) #define CORE_DUMP_USE_REGSET diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index bf5dde1a4114..bc5d39a835fe 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -183,9 +183,13 @@ static inline bool test_thread_local_flags(unsigned int flags) #define clear_tsk_compat_task(tsk) do { } while (0) #endif -#if defined(CONFIG_PPC64) +#ifdef CONFIG_PPC64 +#ifdef CONFIG_CPU_BIG_ENDIAN #define is_elf2_task() (test_thread_flag(TIF_ELF2ABI)) #else +#define is_elf2_task() (1) +#endif +#else #define is_elf2_task() (0) #endif |