-/* Common target dependent code for GDB on HPPA systems.
- Copyright 2003, 2004 Free Software Foundation, Inc.
+/* Target-dependent code for the HP PA-RISC architecture.
+
+ Copyright (C) 2003-2020 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef HPPA_TDEP_H
#define HPPA_TDEP_H
struct trad_frame_saved_reg;
+struct objfile;
+struct so_list;
-enum { HPPA_INSTRUCTION_SIZE = 4 };
-
-/* Register numbers of various important registers.
- Note that some of these values are "real" register numbers,
- and correspond to the general registers of the machine,
- and some are "phony" register numbers which are too large
- 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. */
+/* Register numbers of various important registers. */
enum hppa_regnum
{
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_ISR_REGNUM = 39, /* Interrupt Space Register */
HPPA_IOR_REGNUM = 40, /* Interrupt Offset Register */
HPPA_SR4_REGNUM = 43, /* space register 4 */
+ HPPA_SR0_REGNUM = 44, /* space register 0 */
+ HPPA_SR1_REGNUM = 45, /* space register 1 */
+ HPPA_SR2_REGNUM = 46, /* space register 2 */
+ HPPA_SR3_REGNUM = 47, /* space register 3 */
+ HPPA_SR5_REGNUM = 48, /* space register 5 */
+ HPPA_SR6_REGNUM = 49, /* space register 6 */
+ HPPA_SR7_REGNUM = 50, /* space register 7 */
HPPA_RCR_REGNUM = 51, /* Recover Counter (also known as cr0) */
HPPA_PID0_REGNUM = 52, /* Protection ID */
HPPA_PID1_REGNUM = 53, /* Protection ID */
HPPA_PID3_REGNUM = 56, /* Protection ID */
HPPA_CCR_REGNUM = 54, /* Coprocessor Configuration Register */
HPPA_TR0_REGNUM = 57, /* Temporary Registers (cr24 -> cr31) */
- HPPA_CR27_REGNUM = 60, /* Base register for thread-local storage, cr27 */
+ HPPA_CR26_REGNUM = 59,
+ 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_FP31R_REGNUM = 127, /* Last floating-point. */
- HPPA_ARG0_REGNUM = 26, /* The first argument of a callee. */
- HPPA_ARG1_REGNUM = 25, /* The second argument of a callee. */
- HPPA_ARG2_REGNUM = 24, /* The third argument of a callee. */
- HPPA_ARG3_REGNUM = 23 /* The fourth argument of a callee. */
+ HPPA_ARG0_REGNUM = 26, /* The first argument of a callee. */
+ HPPA_ARG1_REGNUM = 25, /* The second argument of a callee. */
+ HPPA_ARG2_REGNUM = 24, /* The third argument of a callee. */
+ HPPA_ARG3_REGNUM = 23 /* The fourth argument of a callee. */
};
+/* Instruction size. */
+#define HPPA_INSN_SIZE 4
+
/* Target-dependent structure in gdbarch. */
struct gdbarch_tdep
{
/* 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 gdbarch *, struct value *);
+
+ /* For shared libraries, each call goes through a small piece of
+ trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE
+ evaluates to nonzero if we are currently stopped in one of these. */
+ int (*in_solib_call_trampoline) (struct gdbarch *gdbarch, CORE_ADDR pc);
+
+ /* 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 *this_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);
};
/*
unsigned int Millicode:1; /* 1 */
unsigned int Millicode_save_sr0:1; /* 2 */
unsigned int Region_description:2; /* 3..4 */
- unsigned int reserved1:1; /* 5 */
+ unsigned int reserved:1; /* 5 */
unsigned int Entry_SR:1; /* 6 */
unsigned int Entry_FR:4; /* number saved *//* 7..10 */
unsigned int Entry_GR:5; /* number saved *//* 11..15 */
unsigned int Frame_Extension_Millicode:1; /* 19 */
unsigned int Stack_Overflow_Check:1; /* 20 */
unsigned int Two_Instruction_SP_Increment:1; /* 21 */
- unsigned int Ada_Region:1; /* 22 */
+ unsigned int sr4export:1; /* 22 */
unsigned int cxx_info:1; /* 23 */
unsigned int cxx_try_catch:1; /* 24 */
unsigned int sched_entry_seq:1; /* 25 */
- unsigned int reserved2:1; /* 26 */
+ unsigned int reserved1:1; /* 26 */
unsigned int Save_SP:1; /* 27 */
unsigned int Save_RP:1; /* 28 */
unsigned int Save_MRP_in_frame:1; /* 29 */
- unsigned int extn_ptr_defined:1; /* 30 */
+ unsigned int save_r19:1; /* 30 */
unsigned int Cleanup_defined:1; /* 31 */
unsigned int MPE_XL_interrupt_marker:1; /* 0 */
unsigned int HP_UX_interrupt_marker:1; /* 1 */
unsigned int Large_frame:1; /* 2 */
- unsigned int Pseudo_SP_Set:1; /* 3 */
- unsigned int reserved4:1; /* 4 */
+ unsigned int alloca_frame:1; /* 3 */
+ unsigned int reserved2:1; /* 4 */
unsigned int Total_frame_size:27; /* 5..31 */
/* This is *NOT* part of an actual unwind_descriptor in an object
file. It is *ONLY* part of the "internalized" descriptors that
- we create from those in a file.
- */
+ we create from those in a file. */
+
struct
{
unsigned int stub_type:4; /* 0..3 */
struct unwind_table_entry *find_unwind_entry (CORE_ADDR);
-/* We use the objfile->obj_private pointer for two things:
- * 1. An unwind table;
- *
- * 2. A pointer to any associated shared library object.
- *
- * #defines are used to help refer to these objects.
- */
-
-/* Info about the unwind table associated with an object file.
- * This is hung off of the "objfile->obj_private" pointer, and
- * is allocated in the objfile's psymbol obstack. This allows
- * us to have unique unwind info for each executable and shared
- * library that we are debugging.
- */
-struct hppa_unwind_info
- {
- struct unwind_table_entry *table; /* Pointer to unwind info */
- struct unwind_table_entry *cache; /* Pointer to last entry we found */
- int last; /* Index of last entry */
- };
-
-struct hppa_objfile_private
- {
- struct hppa_unwind_info *unwind_info; /* a pointer */
- struct so_list *so_info; /* a pointer */
- CORE_ADDR dp;
- };
-
-extern const struct objfile_data *hppa_objfile_priv_data;
-
int hppa_get_field (unsigned word, int from, int to);
int hppa_extract_5_load (unsigned int);
unsigned hppa_extract_5R_store (unsigned int);
int hppa_extract_17 (unsigned int);
int hppa_extract_21 (unsigned);
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);
+
+extern struct value *
+ hppa_frame_prev_register_helper (struct frame_info *this_frame,
+ struct trad_frame_saved_reg *saved_regs,
+ int regnum);
+
+extern CORE_ADDR hppa_read_pc (struct regcache *regcache);
+extern void hppa_write_pc (struct regcache *regcache, CORE_ADDR pc);
+extern CORE_ADDR hppa_unwind_pc (struct gdbarch *gdbarch,
+ struct frame_info *next_frame);
+
+extern struct bound_minimal_symbol
+ hppa_lookup_stub_minimal_symbol (const char *name,
+ enum unwind_stub_types stub_type);
-void
-hppa_frame_prev_register_helper (struct frame_info *next_frame,
- struct trad_frame_saved_reg saved_regs[],
- int regnum, int *optimizedp,
- enum lval_type *lvalp, CORE_ADDR *addrp,
- int *realnump, void *valuep);
+extern int hppa_in_solib_call_trampoline (struct gdbarch *gdbarch,
+ CORE_ADDR pc);
+extern CORE_ADDR hppa_skip_trampoline_code (struct frame_info *, CORE_ADDR pc);
-#endif /* HPPA_TDEP_H */
+#endif /* hppa-tdep.h */
projects / deliverable / binutils-gdb.git / blobdiff