From 1efc563865dbc3710c5af7bc1540360a6d06192c Mon Sep 17 00:00:00 2001 From: Jeff Bailey Date: Sat, 17 May 2014 15:05:43 +0000 Subject: [PATCH] powerpc: Clear ELF personality flag if ELFv2 is not requested. powerpc: Clear ELF personality flag if ELFv2 is not requested. The POWER kernel uses a personality flag to determine whether it should be setting up function descriptors or not (per the updated ABI). This flag wasn't being cleared on a new process but instead was being inherited. The visible effect was that an ELFv2 binary could not execve to an ELFv1 binary. Signed-off-by: Jeff Bailey arch/powerpc/include/asm/elf.h | 2 ++ 1 file changed, 2 insertions(+) Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/elf.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h index 935b5e7a1436..888d8f3f2524 100644 --- a/arch/powerpc/include/asm/elf.h +++ b/arch/powerpc/include/asm/elf.h @@ -90,6 +90,8 @@ typedef elf_vrregset_t elf_fpxregset_t; do { \ if (((ex).e_flags & 0x3) == 2) \ set_thread_flag(TIF_ELF2ABI); \ + else \ + clear_thread_flag(TIF_ELF2ABI); \ if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ set_thread_flag(TIF_32BIT); \ else \ -- 2.20.1