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Commit cd975ae0 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming 

Pull c6x updates from Mark Salter:
 "Clean up some c6x Kconfig items and add support for Elf FDPIC loader."

* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
  C6X: remove unused config items
  C6X: add support to build with BINFMT_ELF_FDPIC
  C6X: change main arch kbuild symbol
parents 881bcabb 8ff98b9c

arch/c6x/Kconfig

+1 −13
Original line number Diff line number Diff line
@@ -3,7 +3,7 @@ 
# see Documentation/kbuild/kconfig-language.txt.

#



config TMS320C6X

config C6X

	def_bool y

	select CLKDEV_LOOKUP

	select GENERIC_IRQ_SHOW
@@ -19,24 +19,12 @@ config TMS320C6X 
config MMU

	def_bool n



config ZONE_DMA

	def_bool y



config FPU

	def_bool n



config HIGHMEM

	def_bool n



config NUMA

	def_bool n



config RWSEM_GENERIC_SPINLOCK

	def_bool y



config RWSEM_XCHGADD_ALGORITHM

	def_bool n



config GENERIC_CALIBRATE_DELAY

	def_bool y

arch/c6x/include/asm/elf.h

+13 −1
Original line number Diff line number Diff line
@@ -30,7 +30,19 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; 
 */

#define elf_check_arch(x) ((x)->e_machine == EM_TI_C6000)



#define elf_check_const_displacement(x) (1)

#define elf_check_fdpic(x) (1)

#define elf_check_const_displacement(x) (0)



#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map, _interp_map, _dynamic_addr) \

do {								\

	_regs->b4	= (_exec_map);				\

	_regs->a6	= (_interp_map);			\

	_regs->b6	= (_dynamic_addr);			\

} while (0)



#define ELF_FDPIC_CORE_EFLAGS	0



#define ELF_CORE_COPY_FPREGS(...) 0 /* No FPU regs to copy */



/*

 * These are used to set parameters in the core dumps.

arch/c6x/include/asm/mmu.h

+4 −0
Original line number Diff line number Diff line
@@ -13,6 +13,10 @@ 


typedef struct {

	unsigned long		end_brk;

#ifdef CONFIG_BINFMT_ELF_FDPIC

	unsigned long	exec_fdpic_loadmap;

	unsigned long	interp_fdpic_loadmap;

#endif

} mm_context_t;



#endif /* _ASM_C6X_MMU_H */

arch/c6x/include/asm/ptrace.h

+5 −0
Original line number Diff line number Diff line
@@ -97,6 +97,11 @@ 
#define PT_DP	   PT_B14  /* Data Segment Pointer (B14) */

#define PT_SP	   PT_B15  /* Stack Pointer (B15)  */



#define PTRACE_GETFDPIC		31	/* get the ELF fdpic loadmap address */



#define PTRACE_GETFDPIC_EXEC	0	/* [addr] request the executable loadmap */

#define PTRACE_GETFDPIC_INTERP	1	/* [addr] request the interpreter loadmap */



#ifndef __ASSEMBLY__



#ifdef _BIG_ENDIAN

fs/Kconfig.binfmt

+1 −1
Original line number Diff line number Diff line
@@ -33,7 +33,7 @@ config ARCH_BINFMT_ELF_RANDOMIZE_PIE 
config BINFMT_ELF_FDPIC

	bool "Kernel support for FDPIC ELF binaries"

	default y

	depends on (FRV || BLACKFIN || (SUPERH32 && !MMU))

	depends on (FRV || BLACKFIN || (SUPERH32 && !MMU) || C6X)

	help

	  ELF FDPIC binaries are based on ELF, but allow the individual load

	  segments of a binary to be located in memory independently of each