#define elf_check_arch(x) ( ( (x)->e_machine == EM_XTENSA ) || \
( (x)->e_machine == EM_XTENSA_OLD ) )
+#define ELFOSABI_XTENSA_FDPIC 65
+#define elf_check_fdpic(x) ((x)->e_ident[EI_OSABI] == ELFOSABI_XTENSA_FDPIC)
+#define ELF_FDPIC_CORE_EFLAGS 0
+
/*
* These are used to set parameters in the core dumps.
*/
(_r)->areg[14] = 0; (_r)->areg[15] = 0; \
} while (0)
+#define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, dynamic_addr) \
+ do { \
+ (_r)->areg[4] = _exec_map_addr; \
+ (_r)->areg[5] = _interp_map_addr; \
+ (_r)->areg[6] = dynamic_addr; \
+ } while (0)
+
typedef struct {
xtregs_opt_t opt;
xtregs_user_t user;
#define start_thread(regs, new_pc, new_sp) \
do { \
unsigned long syscall = (regs)->syscall; \
+ unsigned long current_aregs[16]; \
+ memcpy(current_aregs, (regs)->areg, sizeof(current_aregs)); \
memset((regs), 0, sizeof(*(regs))); \
(regs)->pc = (new_pc); \
(regs)->ps = USER_PS_VALUE; \
+ memcpy((regs)->areg, current_aregs, sizeof(current_aregs)); \
(regs)->areg[1] = (new_sp); \
(regs)->areg[0] = 0; \
(regs)->wmask = 1; \
#define PTRACE_SETXTREGS 19
#define PTRACE_GETHBPREGS 20
#define PTRACE_SETHBPREGS 21
+#define PTRACE_GETFDPIC 22
+
+#define PTRACE_GETFDPIC_EXEC 0
+#define PTRACE_GETFDPIC_INTERP 1
#ifndef __ASSEMBLY__
config BINFMT_ELF_FDPIC
bool "Kernel support for FDPIC ELF binaries"
default y if !BINFMT_ELF
- depends on ARM || ((M68K || SUPERH) && !MMU)
+ depends on ARM || ((M68K || SUPERH || XTENSA) && !MMU)
select ELFCORE
help
ELF FDPIC binaries are based on ELF, but allow the individual load