-/* Common target dependent code for GDB on SPARC systems.
- Copyright 2002 Free Software Foundation, Inc.
+/* Target-dependent code for SPARC.
+
+ Copyright 2003, 2004 Free Software Foundation, Inc.
This file is part of GDB.
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-/*
- * Some local macros that have multi-arch and non-multi-arch versions:
- */
-
-#if (GDB_MULTI_ARCH > 0)
-
-/* Does the target have Floating Point registers? */
-#define SPARC_HAS_FPU (gdbarch_tdep (current_gdbarch)->has_fpu)
-/* Number of bytes devoted to Floating Point registers: */
-#define FP_REGISTER_BYTES (gdbarch_tdep (current_gdbarch)->fp_register_bytes)
-/* Highest numbered Floating Point register. */
-#define FP_MAX_REGNUM (gdbarch_tdep (current_gdbarch)->fp_max_regnum)
-/* Size of a general (integer) register: */
-#define SPARC_INTREG_SIZE (gdbarch_tdep (current_gdbarch)->intreg_size)
-/* Offset within the call dummy stack of the saved registers. */
-#define DUMMY_REG_SAVE_OFFSET (gdbarch_tdep (current_gdbarch)->reg_save_offset)
-
-#else /* non-multi-arch */
-
-/* Does the target have Floating Point registers? */
-#if defined(TARGET_SPARCLET) || defined(TARGET_SPARCLITE)
-#define SPARC_HAS_FPU 0
-#else
-#define SPARC_HAS_FPU 1
-#endif
-
-/* Number of bytes devoted to Floating Point registers: */
-#if (GDB_TARGET_IS_SPARC64)
-#define FP_REGISTER_BYTES (64 * 4)
-#else
-#if (SPARC_HAS_FPU)
-#define FP_REGISTER_BYTES (32 * 4)
-#else
-#define FP_REGISTER_BYTES 0
-#endif
-#endif
-
-/* Highest numbered Floating Point register. */
-#if (GDB_TARGET_IS_SPARC64)
-#define FP_MAX_REGNUM (FP0_REGNUM + 48)
-#else
-#define FP_MAX_REGNUM (FP0_REGNUM + 32)
-#endif
-
-/* Size of a general (integer) register: */
-#define SPARC_INTREG_SIZE (REGISTER_RAW_SIZE (G0_REGNUM))
-
-/* Offset within the call dummy stack of the saved registers. */
-#if (GDB_TARGET_IS_SPARC64)
-#define DUMMY_REG_SAVE_OFFSET (128 + 16)
-#else
-#define DUMMY_REG_SAVE_OFFSET 0x60
-#endif
-
-#endif /* GDB_MULTI_ARCH */
-
-#ifndef CALL_DUMMY_CALL_OFFSET
-#define CALL_DUMMY_CALL_OFFSET \
- (gdbarch_tdep (current_gdbarch)->call_dummy_call_offset)
-#endif /* CALL_DUMMY_CALL_OFFSET */
+#ifndef SPARC_TDEP_H
+#define SPARC_TDEP_H 1
+
+struct gdbarch;
+struct regcache;
+struct trad_frame_saved_reg;
+
+/* Register offsets for the general-purpose register set. */
+
+struct sparc_gregset
+{
+ 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;
+};
+
+/* SPARC architecture-specific information. */
struct gdbarch_tdep
- {
- int os_ident;
- int has_fpu;
- int fp_register_bytes;
- int y_regnum;
- int fp_max_regnum;
- int intreg_size;
- int reg_save_offset;
- int call_dummy_call_offset;
- int print_insn_mach;
- };
-
-/* How a OS variant tells the SPARC generic code that it can handle an ABI
- type. */
-extern void sparc_gdbarch_register_os_abi (int os_ident,
- void (*init_abi)(struct gdbarch_info,
- struct gdbarch *));
+{
+ /* Register numbers for the PN and nPC registers. The definitions
+ for (64-bit) UltraSPARC differ from the (32-bit) SPARC
+ definitions. */
+ int pc_regnum;
+ int npc_regnum;
+
+ /* Offset of saved PC in jmp_buf. */
+ int jb_pc_offset;
+
+ /* 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;
+};
+
+/* Register numbers of various important registers. */
+
+enum sparc_regnum
+{
+ SPARC_G0_REGNUM, /* %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_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. */
+ SPARC32_D0_REGNUM, /* %d0 */
+ SPARC32_D30_REGNUM /* %d30 */
+ = SPARC32_D0_REGNUM + 15
+};
+\f
+
+struct sparc_frame_cache
+{
+ /* Base address. */
+ CORE_ADDR base;
+ CORE_ADDR pc;
+
+ /* Do we have a frame? */
+ int frameless_p;
+
+ /* 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);
+
+extern CORE_ADDR sparc_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
+ struct sparc_frame_cache *cache);
+
+extern struct sparc_frame_cache *
+ sparc_frame_cache (struct frame_info *next_frame, void **this_cache);
+
+extern struct sparc_frame_cache *
+ sparc32_frame_cache (struct frame_info *next_frame, void **this_cache);
+
+\f
+
+extern void sparc_software_single_step (enum target_signal sig,
+ int insert_breakpoints_p);
+
+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_gregset sparc32_sunos4_gregset;
+
+extern void sparc32_supply_gregset (const struct sparc_gregset *gregset,
+ struct regcache *regcache,
+ int regnum, const void *gregs);
+extern void sparc32_collect_gregset (const struct sparc_gregset *gregset,
+ const struct regcache *regcache,
+ int regnum, void *gregs);
+extern void sparc32_supply_fpregset (struct regcache *regcache,
+ int regnum, const void *fpregs);
+extern void sparc32_collect_fpregset (const struct regcache *regcache,
+ int regnum, void *fpregs);
+
+/* Functions and variables exported from sparc-sol2-tdep.c. */
+
+/* Register offsets for Solaris 2. */
+extern const struct sparc_gregset sparc32_sol2_gregset;
+
+extern int sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name);
+
+extern void sparc32_sol2_init_abi (struct gdbarch_info info,
+ struct gdbarch *gdbarch);
+
+/* Functions and variables exported from sparcnbsd-tdep.c. */
+
+/* Register offsets for NetBSD. */
+extern const struct sparc_gregset sparc32nbsd_gregset;
+
+#endif /* sparc-tdep.h */
projects / deliverable / binutils-gdb.git / blobdiff