X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fhppa-tdep.h;h=a89e93c4fd037a0518d4cc576aed951fe7c905c3;hb=7190276c52b9d86a52aae73d3a0f8b56e7a1f4f1;hp=f41af2d957b24aadb73509eaec8e2a565610068d;hpb=7c46b9fb41fd107882032ecc34897a8e86e8264a;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/hppa-tdep.h b/gdb/hppa-tdep.h index f41af2d957..a89e93c4fd 100644 --- a/gdb/hppa-tdep.h +++ b/gdb/hppa-tdep.h @@ -1,11 +1,12 @@ -/* Common target dependent code for GDB on HPPA systems. - Copyright 2003 Free Software Foundation, Inc. +/* Target-dependent code for the HP PA-RISC architecture. + + Copyright (C) 2003-2019 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, @@ -14,14 +15,71 @@ 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 . */ #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. */ + +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_PCSQ_HEAD_REGNUM = 34, /* instruction space queue head */ + HPPA_PCOQ_TAIL_REGNUM = 35, /* instruction offset queue tail */ + HPPA_PCSQ_TAIL_REGNUM = 36, /* instruction space queue tail */ + HPPA_EIEM_REGNUM = 37, /* External Interrupt Enable Mask */ + HPPA_IIR_REGNUM = 38, /* Interrupt Instruction Register */ + 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_PID2_REGNUM = 55, /* Protection ID */ + HPPA_PID3_REGNUM = 56, /* Protection ID */ + HPPA_CCR_REGNUM = 54, /* Coprocessor Configuration Register */ + HPPA_TR0_REGNUM = 57, /* Temporary Registers (cr24 -> cr31) */ + 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. */ +}; + +/* Instruction size. */ +#define HPPA_INSN_SIZE 4 /* Target-dependent structure in gdbarch. */ struct gdbarch_tdep @@ -29,6 +87,34 @@ struct gdbarch_tdep /* The number of bytes in an address. For now, this field is designed to allow us to differentiate hppa32 from hppa64 targets. */ int bytes_per_address; + + /* 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); }; /* @@ -44,7 +130,7 @@ struct unwind_table_entry 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 */ @@ -54,28 +140,28 @@ struct unwind_table_entry 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 */ @@ -100,34 +186,33 @@ enum unwind_stub_types IMPORT_SHLIB = 12, }; -/* 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. - */ +struct unwind_table_entry *find_unwind_entry (CORE_ADDR); -/* 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 */ - }; +int hppa_get_field (unsigned word, int from, int to); +int hppa_extract_5_load (unsigned int); +unsigned hppa_extract_5R_store (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); +CORE_ADDR hppa_symbol_address(const char *sym); -struct hppa_objfile_private - { - struct hppa_unwind_info *unwind_info; /* a pointer */ - struct so_list *so_info; /* a pointer */ - CORE_ADDR dp; - }; +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); -extern const struct objfile_data *hppa_objfile_priv_data; +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 */