From f55d966536034d33476fdd43c45d47225344469f Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Mon, 6 Jun 2016 22:26:10 +0530 Subject: powerpc: Define and use PPC64_ELF_ABI_v2/v1 We're approaching 20 locations where we need to check for ELF ABI v2. That's fine, except the logic is a bit awkward, because we have to check that _CALL_ELF is defined and then what its value is. So check it once in asm/types.h and define PPC64_ELF_ABI_v2 when ELF ABI v2 is detected. We also have a few places where what we're really trying to check is that we are using the 64-bit v1 ABI, ie. function descriptors. So also add a #define for that, which simplifies several checks. Signed-off-by: Naveen N. Rao Signed-off-by: Michael Ellerman --- arch/powerpc/include/asm/ftrace.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'arch/powerpc/include/asm/ftrace.h') diff --git a/arch/powerpc/include/asm/ftrace.h b/arch/powerpc/include/asm/ftrace.h index 50ca7585abe2..686c5f70eb84 100644 --- a/arch/powerpc/include/asm/ftrace.h +++ b/arch/powerpc/include/asm/ftrace.h @@ -1,6 +1,8 @@ #ifndef _ASM_POWERPC_FTRACE #define _ASM_POWERPC_FTRACE +#include + #ifdef CONFIG_FUNCTION_TRACER #define MCOUNT_ADDR ((unsigned long)(_mcount)) #define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */ @@ -65,8 +67,8 @@ struct dyn_arch_ftrace { #endif #endif -#if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_PPC64) && !defined(__ASSEMBLY__) -#if !defined(_CALL_ELF) || _CALL_ELF != 2 +#if defined(CONFIG_FTRACE_SYSCALLS) && !defined(__ASSEMBLY__) +#ifdef PPC64_ELF_ABI_v1 #define ARCH_HAS_SYSCALL_MATCH_SYM_NAME static inline bool arch_syscall_match_sym_name(const char *sym, const char *name) { @@ -79,6 +81,6 @@ static inline bool arch_syscall_match_sym_name(const char *sym, const char *name return !strcmp(sym + 4, name + 3); } #endif -#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_PPC64 && !__ASSEMBLY__ */ +#endif /* CONFIG_FTRACE_SYSCALLS && !__ASSEMBLY__ */ #endif /* _ASM_POWERPC_FTRACE */ -- cgit v1.2.3