/* Common target dependent code for GDB on HPPA systems.
- Copyright 2003 Free Software Foundation, Inc.
+ Copyright 2003, 2004 Free Software Foundation, Inc.
This file is part of GDB.
#ifndef HPPA_TDEP_H
#define HPPA_TDEP_H
-enum { HPPA_INSTRUCTION_SIZE = 4 };
+struct trad_frame_saved_reg;
+struct objfile;
+struct so_list;
/* Register numbers of various important registers.
Note that some of these values are "real" register numbers,
to be actual register numbers as far as the user is concerned
but do serve to get the desired values when passed to read_register. */
-enum {
+enum hppa_regnum
+{
HPPA_R0_REGNUM = 0, /* Doesn't actually exist, used as base for
other r registers. */
+ HPPA_R1_REGNUM = 1,
HPPA_FLAGS_REGNUM = 0, /* Various status flags */
HPPA_RP_REGNUM = 2, /* return pointer */
HPPA_FP_REGNUM = 3, /* The ABI's frame pointer, when used */
+ HPPA_DP_REGNUM = 27,
+ HPPA_RET0_REGNUM = 28,
+ HPPA_RET1_REGNUM = 29,
HPPA_SP_REGNUM = 30, /* Stack pointer. */
+ HPPA_R31_REGNUM = 31,
HPPA_SAR_REGNUM = 32, /* Shift Amount Register */
HPPA_IPSW_REGNUM = 41, /* Interrupt Processor Status Word */
HPPA_PCOQ_HEAD_REGNUM = 33, /* instruction offset queue head */
HPPA_CR27_REGNUM = 60, /* Base register for thread-local storage, cr27 */
HPPA_FP0_REGNUM = 64, /* First floating-point. */
HPPA_FP4_REGNUM = 72,
+ HPPA64_FP4_REGNUM = 68,
HPPA_ARG0_REGNUM = 26, /* The first argument of a callee. */
HPPA_ARG1_REGNUM = 25, /* The second argument of a callee. */
/* Is this an ELF target? This can be 64-bit HP-UX, or a 32/64-bit GNU/Linux
system. */
int is_elf;
+
+ /* Given a function address, try to find the global pointer for the
+ corresponding shared object. */
+ CORE_ADDR (*find_global_pointer) (struct value *);
+
+ /* For shared libraries, each call goes through a small piece of
+ trampoline code in the ".plt", or equivalent, section.
+ IN_SOLIB_CALL_TRAMPOLINE evaluates to nonzero if we are currently
+ stopped in one of these. */
+ int (*in_solib_call_trampoline) (CORE_ADDR pc, char *name);
+
+ /* For targets that support multiple spaces, we may have additional stubs
+ in the return path. These stubs are internal to the ABI, and users are
+ not interested in them. If we detect that we are returning to a stub,
+ adjust the pc to the real caller. This improves the behavior of commands
+ that traverse frames such as "up" and "finish". */
+ void (*unwind_adjust_stub) (struct frame_info *next_frame, CORE_ADDR base,
+ struct trad_frame_saved_reg *saved_regs);
+
+ /* These are solib-dependent methods. They are really HPUX only, but
+ we don't have a HPUX-specific tdep vector at the moment. */
+ CORE_ADDR (*solib_thread_start_addr) (struct so_list *so);
+ CORE_ADDR (*solib_get_got_by_pc) (CORE_ADDR addr);
+ CORE_ADDR (*solib_get_solib_by_pc) (CORE_ADDR addr);
+ CORE_ADDR (*solib_get_text_base) (struct objfile *objfile);
};
/*
struct hppa_unwind_info *unwind_info; /* a pointer */
struct so_list *so_info; /* a pointer */
CORE_ADDR dp;
+
+ int dummy_call_sequence_reg;
+ CORE_ADDR dummy_call_sequence_addr;
};
extern const struct objfile_data *hppa_objfile_priv_data;
int hppa_extract_14 (unsigned);
int hppa_low_sign_extend (unsigned int, unsigned int);
int hppa_sign_extend (unsigned int, unsigned int);
+CORE_ADDR hppa_symbol_address(const char *sym);
void
hppa_frame_prev_register_helper (struct frame_info *next_frame,
- struct trad_frame_saved_reg saved_regs[],
+ struct trad_frame_saved_reg *saved_regs,
int regnum, int *optimizedp,
enum lval_type *lvalp, CORE_ADDR *addrp,
int *realnump, void *valuep);
+extern CORE_ADDR hppa_read_pc (ptid_t ptid);
+extern void hppa_write_pc (CORE_ADDR pc, ptid_t ptid);
+extern CORE_ADDR hppa_unwind_pc (struct gdbarch *gdbarch,
+ struct frame_info *next_frame);
+
+extern struct minimal_symbol *
+ hppa_lookup_stub_minimal_symbol (const char *name,
+ enum unwind_stub_types stub_type);
+
+extern struct hppa_objfile_private *
+hppa_init_objfile_priv_data (struct objfile *objfile);
+
#endif /* HPPA_TDEP_H */