diff options
| -rw-r--r-- | arch/c6x/include/asm/elf.h | 14 | ||||
| -rw-r--r-- | arch/c6x/include/asm/mmu.h | 4 | ||||
| -rw-r--r-- | arch/c6x/include/asm/ptrace.h | 5 | ||||
| -rw-r--r-- | fs/Kconfig.binfmt | 2 |
4 files changed, 23 insertions, 2 deletions
diff --git a/arch/c6x/include/asm/elf.h b/arch/c6x/include/asm/elf.h index d57865ba2c44..f4552db20b4a 100644 --- a/arch/c6x/include/asm/elf.h +++ b/arch/c6x/include/asm/elf.h @@ -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. diff --git a/arch/c6x/include/asm/mmu.h b/arch/c6x/include/asm/mmu.h index 41592bf16067..4467e770a1ce 100644 --- a/arch/c6x/include/asm/mmu.h +++ b/arch/c6x/include/asm/mmu.h @@ -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 */ diff --git a/arch/c6x/include/asm/ptrace.h b/arch/c6x/include/asm/ptrace.h index 21e8d7931fe7..b04ff5964258 100644 --- a/arch/c6x/include/asm/ptrace.h +++ b/arch/c6x/include/asm/ptrace.h @@ -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 diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt index e95d1b64082c..022574202749 100644 --- a/fs/Kconfig.binfmt +++ b/fs/Kconfig.binfmt @@ -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 |