| /* Target-dependent code for SPARC. |
| |
| Copyright (C) 2003-2024 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 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 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, see <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef SPARC_TDEP_H |
| #define SPARC_TDEP_H 1 |
| |
| #include "gdbarch.h" |
| |
| #define SPARC_CORE_REGISTERS \ |
| "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", \ |
| "o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7", \ |
| "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", \ |
| "i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7" |
| |
| class frame_info_ptr; |
| struct gdbarch; |
| struct regcache; |
| struct regset; |
| struct trad_frame_saved_reg; |
| |
| /* Register offsets for the general-purpose register set. */ |
| |
| struct sparc_gregmap |
| { |
| int r_psr_offset; |
| int r_pc_offset; |
| int r_npc_offset; |
| int r_y_offset; |
| int r_wim_offset; |
| int r_tbr_offset; |
| int r_g1_offset; |
| int r_l0_offset; |
| int r_y_size; |
| }; |
| |
| struct sparc_fpregmap |
| { |
| int r_f0_offset; |
| int r_fsr_offset; |
| }; |
| |
| /* SPARC architecture-specific information. */ |
| |
| struct sparc_gdbarch_tdep : gdbarch_tdep_base |
| { |
| /* Register numbers for the PN and nPC registers. The definitions |
| for (64-bit) UltraSPARC differ from the (32-bit) SPARC |
| definitions. */ |
| int pc_regnum = 0; |
| int npc_regnum = 0; |
| |
| /* Register names specific for architecture (sparc32 vs. sparc64) */ |
| const char * const *fpu_register_names = nullptr; |
| size_t fpu_registers_num = 0; |
| const char * const *cp0_register_names = nullptr; |
| size_t cp0_registers_num = 0; |
| |
| /* Register sets. */ |
| const struct regset *gregset = nullptr; |
| size_t sizeof_gregset = 0; |
| const struct regset *fpregset = nullptr; |
| size_t sizeof_fpregset = 0; |
| |
| /* Offset of saved PC in jmp_buf. */ |
| int jb_pc_offset = 0; |
| |
| /* Size of an Procedure Linkage Table (PLT) entry, 0 if we shouldn't |
| treat the PLT special when doing prologue analysis. */ |
| size_t plt_entry_size = 0; |
| |
| /* Alternative location for trap return. Used for single-stepping. */ |
| CORE_ADDR (*step_trap) (const frame_info_ptr &frame, unsigned long insn) |
| = nullptr; |
| |
| /* ISA-specific data types. */ |
| struct type *sparc_psr_type = nullptr; |
| struct type *sparc_fsr_type = nullptr; |
| struct type *sparc64_ccr_type = nullptr; |
| struct type *sparc64_pstate_type = nullptr; |
| struct type *sparc64_fsr_type = nullptr; |
| struct type *sparc64_fprs_type = nullptr; |
| }; |
| |
| /* Register numbers of various important registers. */ |
| |
| enum sparc_regnum |
| { |
| SPARC_G0_REGNUM = 0, /* %g0 */ |
| SPARC_G1_REGNUM, |
| SPARC_G2_REGNUM, |
| SPARC_G3_REGNUM, |
| SPARC_G4_REGNUM, |
| SPARC_G5_REGNUM, |
| SPARC_G6_REGNUM, |
| SPARC_G7_REGNUM, /* %g7 */ |
| SPARC_O0_REGNUM, /* %o0 */ |
| SPARC_O1_REGNUM, |
| SPARC_O2_REGNUM, |
| SPARC_O3_REGNUM, |
| SPARC_O4_REGNUM, |
| SPARC_O5_REGNUM, |
| SPARC_SP_REGNUM, /* %sp (%o6) */ |
| SPARC_O7_REGNUM, /* %o7 */ |
| SPARC_L0_REGNUM, /* %l0 */ |
| SPARC_L1_REGNUM, |
| SPARC_L2_REGNUM, |
| SPARC_L3_REGNUM, |
| SPARC_L4_REGNUM, |
| SPARC_L5_REGNUM, |
| SPARC_L6_REGNUM, |
| SPARC_L7_REGNUM, /* %l7 */ |
| SPARC_I0_REGNUM, /* %i0 */ |
| SPARC_I1_REGNUM, |
| SPARC_I2_REGNUM, |
| SPARC_I3_REGNUM, |
| SPARC_I4_REGNUM, |
| SPARC_I5_REGNUM, |
| SPARC_FP_REGNUM, /* %fp (%i6) */ |
| SPARC_I7_REGNUM, /* %i7 */ |
| SPARC_F0_REGNUM, /* %f0 */ |
| SPARC_F1_REGNUM, |
| SPARC_F2_REGNUM, |
| SPARC_F3_REGNUM, |
| SPARC_F4_REGNUM, |
| SPARC_F5_REGNUM, |
| SPARC_F6_REGNUM, |
| SPARC_F7_REGNUM, |
| SPARC_F31_REGNUM /* %f31 */ |
| = SPARC_F0_REGNUM + 31 |
| }; |
| |
| enum sparc32_regnum |
| { |
| SPARC32_Y_REGNUM /* %y */ |
| = SPARC_F31_REGNUM + 1, |
| SPARC32_PSR_REGNUM, /* %psr */ |
| SPARC32_WIM_REGNUM, /* %wim */ |
| SPARC32_TBR_REGNUM, /* %tbr */ |
| SPARC32_PC_REGNUM, /* %pc */ |
| SPARC32_NPC_REGNUM, /* %npc */ |
| SPARC32_FSR_REGNUM, /* %fsr */ |
| SPARC32_CSR_REGNUM, /* %csr */ |
| }; |
| |
| /* Pseudo registers. */ |
| enum sparc32_pseudo_regnum |
| { |
| SPARC32_D0_REGNUM = 0, /* %d0 */ |
| SPARC32_D30_REGNUM /* %d30 */ |
| = SPARC32_D0_REGNUM + 15 |
| }; |
| |
| |
| struct sparc_frame_cache |
| { |
| /* Base address. */ |
| CORE_ADDR base; |
| CORE_ADDR pc; |
| |
| /* Do we have a frame? */ |
| int frameless_p; |
| |
| /* The offset from the base register to the CFA. */ |
| int frame_offset; |
| |
| /* Mask of `local' and `in' registers saved in the register save area. */ |
| unsigned short int saved_regs_mask; |
| |
| /* Mask of `out' registers copied or renamed to their `in' sibling. */ |
| unsigned char copied_regs_mask; |
| |
| /* Do we have a Structure, Union or Quad-Precision return value? */ |
| int struct_return_p; |
| |
| /* Table of saved registers. */ |
| struct trad_frame_saved_reg *saved_regs; |
| }; |
| |
| /* Fetch the instruction at PC. */ |
| extern unsigned long sparc_fetch_instruction (CORE_ADDR pc); |
| |
| /* Fetch StackGhost Per-Process XOR cookie. */ |
| extern ULONGEST sparc_fetch_wcookie (struct gdbarch *gdbarch); |
| |
| /* Record the effect of a SAVE instruction on CACHE. */ |
| extern void sparc_record_save_insn (struct sparc_frame_cache *cache); |
| |
| /* Do a full analysis of the prologue at PC and update CACHE accordingly. */ |
| extern CORE_ADDR sparc_analyze_prologue (struct gdbarch *gdbarch, |
| CORE_ADDR pc, CORE_ADDR current_pc, |
| struct sparc_frame_cache *cache); |
| |
| extern struct sparc_frame_cache * |
| sparc_frame_cache (const frame_info_ptr &this_frame, void **this_cache); |
| |
| extern struct sparc_frame_cache * |
| sparc32_frame_cache (const frame_info_ptr &this_frame, void **this_cache); |
| |
| extern int |
| sparc_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR pc); |
| |
| |
| |
| extern void sparc_supply_rwindow (struct regcache *regcache, |
| CORE_ADDR sp, int regnum); |
| extern void sparc_collect_rwindow (const struct regcache *regcache, |
| CORE_ADDR sp, int regnum); |
| |
| /* Register offsets for SunOS 4. */ |
| extern const struct sparc_gregmap sparc32_sunos4_gregmap; |
| extern const struct sparc_fpregmap sparc32_sunos4_fpregmap; |
| extern const struct sparc_fpregmap sparc32_bsd_fpregmap; |
| |
| extern void sparc32_supply_gregset (const struct sparc_gregmap *gregmap, |
| struct regcache *regcache, |
| int regnum, const void *gregs); |
| extern void sparc32_collect_gregset (const struct sparc_gregmap *gregmap, |
| const struct regcache *regcache, |
| int regnum, void *gregs); |
| extern void sparc32_supply_fpregset (const struct sparc_fpregmap *fpregmap, |
| struct regcache *regcache, |
| int regnum, const void *fpregs); |
| extern void sparc32_collect_fpregset (const struct sparc_fpregmap *fpregmap, |
| const struct regcache *regcache, |
| int regnum, void *fpregs); |
| |
| extern int sparc_is_annulled_branch_insn (CORE_ADDR pc); |
| |
| /* Functions and variables exported from sparc-sol2-tdep.c. */ |
| |
| /* Register offsets for Solaris 2. */ |
| extern const struct sparc_gregmap sparc32_sol2_gregmap; |
| extern const struct sparc_fpregmap sparc32_sol2_fpregmap; |
| |
| /* Functions and variables exported from sparc-netbsd-tdep.c. */ |
| |
| /* Register offsets for NetBSD. */ |
| extern const struct sparc_gregmap sparc32nbsd_gregmap; |
| |
| /* Return the address of a system call's alternative return |
| address. */ |
| extern CORE_ADDR sparcnbsd_step_trap (const frame_info_ptr &frame, |
| unsigned long insn); |
| |
| extern void sparc32nbsd_init_abi (struct gdbarch_info info, |
| struct gdbarch *gdbarch); |
| |
| extern struct trad_frame_saved_reg * |
| sparc32nbsd_sigcontext_saved_regs (const frame_info_ptr &next_frame); |
| |
| #endif /* sparc-tdep.h */ |