From 3903d4379d19d936333bf889f64545a90363b31b Mon Sep 17 00:00:00 2001 From: Andrew Cagney Date: Wed, 11 Feb 2004 00:02:52 +0000 Subject: [PATCH] 2004-02-10 Andrew Cagney * mips-tdep.c (mips_gdbarch_init): Delete deprecated frame code. (mips_init_frame_pc_first): Delete function. (mips_frame_saved_pc): Delete function. (mips_frame_chain): Delete function. (mips_init_extra_frame_info): Delete function. (mips_xfer_register): Delete unused variable "reg". (mips_n32n64_push_dummy_call): Delete unused variable "valbuf". (mips_n32n64_return_value): Delete unused variable "reg". (mips_n32n64_return_value): Delete unused variable "pos". (mips_o32_push_dummy_call): Delete unused variable "valbuf". (mips_o32_return_value): Delete unused variable "pos". (mips_o64_push_dummy_call): Delete unused variable "valbuf". (mips_print_fp_register): Delete unused variable "namelen" (mips_print_fp_register): Delete unused variable "flt2" (get_frame_pointer): Delete function. (cached_proc_desc): Delete static variable. (mips_pop_frame): Delete function. (mips_find_saved_regs): Delete function. (mips_get_saved_register): Delete function. (mips_saved_pc_after_call): Delete function. (SIGFRAME_BASE): Delete macro. (SIGFRAME_FPREGSAVE_OFF): Delete macro. (SIGFRAME_PC_OFF): Delete macro. (SIGFRAME_REGSAVE_OFF): Delete macro. (mips_dump_tdep): Do not print deleted macro definitions. --- gdb/ChangeLog | 28 +++ gdb/mips-tdep.c | 604 +----------------------------------------------- 2 files changed, 30 insertions(+), 602 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index b0dee9f5517..7fdbd59a984 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,31 @@ +2004-02-10 Andrew Cagney + + * mips-tdep.c (mips_gdbarch_init): Delete deprecated frame code. + (mips_init_frame_pc_first): Delete function. + (mips_frame_saved_pc): Delete function. + (mips_frame_chain): Delete function. + (mips_init_extra_frame_info): Delete function. + (mips_xfer_register): Delete unused variable "reg". + (mips_n32n64_push_dummy_call): Delete unused variable "valbuf". + (mips_n32n64_return_value): Delete unused variable "reg". + (mips_n32n64_return_value): Delete unused variable "pos". + (mips_o32_push_dummy_call): Delete unused variable "valbuf". + (mips_o32_return_value): Delete unused variable "pos". + (mips_o64_push_dummy_call): Delete unused variable "valbuf". + (mips_print_fp_register): Delete unused variable "namelen" + (mips_print_fp_register): Delete unused variable "flt2" + (get_frame_pointer): Delete function. + (cached_proc_desc): Delete static variable. + (mips_pop_frame): Delete function. + (mips_find_saved_regs): Delete function. + (mips_get_saved_register): Delete function. + (mips_saved_pc_after_call): Delete function. + (SIGFRAME_BASE): Delete macro. + (SIGFRAME_FPREGSAVE_OFF): Delete macro. + (SIGFRAME_PC_OFF): Delete macro. + (SIGFRAME_REGSAVE_OFF): Delete macro. + (mips_dump_tdep): Do not print deleted macro definitions. + 2004-02-10 Andrew Cagney * Makefile.in (SFILES): Remove explictly listed tui files. diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c index d71772f4ac5..3a80c06d5b0 100644 --- a/gdb/mips-tdep.c +++ b/gdb/mips-tdep.c @@ -289,7 +289,6 @@ mips_xfer_register (struct regcache *regcache, int reg_num, int length, enum bfd_endian endian, bfd_byte * in, const bfd_byte * out, int buf_offset) { - bfd_byte reg[MAX_REGISTER_SIZE]; int reg_offset = 0; gdb_assert (reg_num >= NUM_REGS); /* Need to transfer the left or right part of the register, based on @@ -1476,230 +1475,6 @@ mips_next_pc (CORE_ADDR pc) return mips32_next_pc (pc); } -/* Set up the 'saved_regs' array. This is a data structure containing - the addresses on the stack where each register has been saved, for - each stack frame. Registers that have not been saved will have - zero here. The stack pointer register is special: rather than the - address where the stack register has been saved, - saved_regs[SP_REGNUM] will have the actual value of the previous - frame's stack register. */ - -static void -mips_find_saved_regs (struct frame_info *fci) -{ - int ireg; - /* r0 bit means kernel trap */ - int kernel_trap; - /* What registers have been saved? Bitmasks. */ - unsigned long gen_mask, float_mask; - mips_extra_func_info_t proc_desc; - t_inst inst; - CORE_ADDR *saved_regs; - struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); - - if (deprecated_get_frame_saved_regs (fci) != NULL) - return; - saved_regs = frame_saved_regs_zalloc (fci); - - /* If it is the frame for sigtramp, the saved registers are located - in a sigcontext structure somewhere on the stack. If the stack - layout for sigtramp changes we might have to change these - constants and the companion fixup_sigtramp in mdebugread.c */ -#ifndef SIGFRAME_BASE - /* To satisfy alignment restrictions, sigcontext is located 4 bytes - above the sigtramp frame. */ -#define SIGFRAME_BASE mips_regsize (current_gdbarch) -/* FIXME! Are these correct?? */ -#define SIGFRAME_PC_OFF (SIGFRAME_BASE + 2 * mips_regsize (current_gdbarch)) -#define SIGFRAME_REGSAVE_OFF (SIGFRAME_BASE + 3 * mips_regsize (current_gdbarch)) -#define SIGFRAME_FPREGSAVE_OFF \ - (SIGFRAME_REGSAVE_OFF + MIPS_NUMREGS * mips_regsize (current_gdbarch) + 3 * mips_regsize (current_gdbarch)) -#endif - if ((get_frame_type (fci) == SIGTRAMP_FRAME)) - { - for (ireg = 0; ireg < MIPS_NUMREGS; ireg++) - { - CORE_ADDR reg_position = - (get_frame_base (fci) + SIGFRAME_REGSAVE_OFF + - ireg * mips_regsize (current_gdbarch)); - set_reg_offset (saved_regs, ireg, reg_position); - } - for (ireg = 0; ireg < MIPS_NUMREGS; ireg++) - { - CORE_ADDR reg_position = (get_frame_base (fci) - + SIGFRAME_FPREGSAVE_OFF - + ireg * mips_regsize (current_gdbarch)); - set_reg_offset (saved_regs, - mips_regnum (current_gdbarch)->fp0 + ireg, - reg_position); - } - - set_reg_offset (saved_regs, mips_regnum (current_gdbarch)->pc, - get_frame_base (fci) + SIGFRAME_PC_OFF); - /* SP_REGNUM, contains the value and not the address. */ - set_reg_offset (saved_regs, SP_REGNUM, get_frame_base (fci)); - return; - } - - proc_desc = get_frame_extra_info (fci)->proc_desc; - if (proc_desc == NULL) - /* I'm not sure how/whether this can happen. Normally when we - can't find a proc_desc, we "synthesize" one using - heuristic_proc_desc and set the saved_regs right away. */ - return; - - kernel_trap = PROC_REG_MASK (proc_desc) & 1; - gen_mask = kernel_trap ? 0xFFFFFFFF : PROC_REG_MASK (proc_desc); - float_mask = kernel_trap ? 0xFFFFFFFF : PROC_FREG_MASK (proc_desc); - - if ( /* In any frame other than the innermost or a frame interrupted - by a signal, we assume that all registers have been saved. - This assumes that all register saves in a function happen - before the first function call. */ - (get_next_frame (fci) == NULL - || (get_frame_type (get_next_frame (fci)) == SIGTRAMP_FRAME)) - /* In a dummy frame we know exactly where things are saved. */ - && !PROC_DESC_IS_DUMMY (proc_desc) - /* Don't bother unless we are inside a function prologue. - Outside the prologue, we know where everything is. */ - && in_prologue (get_frame_pc (fci), PROC_LOW_ADDR (proc_desc)) - /* Not sure exactly what kernel_trap means, but if it means the - kernel saves the registers without a prologue doing it, we - better not examine the prologue to see whether registers - have been saved yet. */ - && !kernel_trap) - { - /* We need to figure out whether the registers that the - proc_desc claims are saved have been saved yet. */ - - CORE_ADDR addr; - - /* Bitmasks; set if we have found a save for the register. */ - unsigned long gen_save_found = 0; - unsigned long float_save_found = 0; - int instlen; - - /* If the address is odd, assume this is MIPS16 code. */ - addr = PROC_LOW_ADDR (proc_desc); - instlen = pc_is_mips16 (addr) ? MIPS16_INSTLEN : MIPS_INSTLEN; - - /* Scan through this function's instructions preceding the - current PC, and look for those that save registers. */ - while (addr < get_frame_pc (fci)) - { - inst = mips_fetch_instruction (addr); - if (pc_is_mips16 (addr)) - mips16_decode_reg_save (inst, &gen_save_found); - else - mips32_decode_reg_save (inst, &gen_save_found, &float_save_found); - addr += instlen; - } - gen_mask = gen_save_found; - float_mask = float_save_found; - } - - /* Fill in the offsets for the registers which gen_mask says were - saved. */ - { - CORE_ADDR reg_position = (get_frame_base (fci) - + PROC_REG_OFFSET (proc_desc)); - for (ireg = MIPS_NUMREGS - 1; gen_mask; --ireg, gen_mask <<= 1) - if (gen_mask & 0x80000000) - { - set_reg_offset (saved_regs, ireg, reg_position); - reg_position -= mips_saved_regsize (tdep); - } - } - - /* The MIPS16 entry instruction saves $s0 and $s1 in the reverse - order of that normally used by gcc. Therefore, we have to fetch - the first instruction of the function, and if it's an entry - instruction that saves $s0 or $s1, correct their saved addresses. */ - if (pc_is_mips16 (PROC_LOW_ADDR (proc_desc))) - { - inst = mips_fetch_instruction (PROC_LOW_ADDR (proc_desc)); - if ((inst & 0xf81f) == 0xe809 && (inst & 0x700) != 0x700) - /* entry */ - { - int reg; - int sreg_count = (inst >> 6) & 3; - - /* Check if the ra register was pushed on the stack. */ - CORE_ADDR reg_position = (get_frame_base (fci) - + PROC_REG_OFFSET (proc_desc)); - if (inst & 0x20) - reg_position -= mips_saved_regsize (tdep); - - /* Check if the s0 and s1 registers were pushed on the - stack. */ - for (reg = 16; reg < sreg_count + 16; reg++) - { - set_reg_offset (saved_regs, reg, reg_position); - reg_position -= mips_saved_regsize (tdep); - } - } - } - - /* Fill in the offsets for the registers which float_mask says were - saved. */ - { - CORE_ADDR reg_position = (get_frame_base (fci) - + PROC_FREG_OFFSET (proc_desc)); - - /* Fill in the offsets for the float registers which float_mask - says were saved. */ - for (ireg = MIPS_NUMREGS - 1; float_mask; --ireg, float_mask <<= 1) - if (float_mask & 0x80000000) - { - if (mips_saved_regsize (tdep) == 4 - && TARGET_BYTE_ORDER == BFD_ENDIAN_BIG) - { - /* On a big endian 32 bit ABI, floating point registers - are paired to form doubles such that the most - significant part is in $f[N+1] and the least - significant in $f[N] vis: $f[N+1] ||| $f[N]. The - registers are also spilled as a pair and stored as a - double. - - When little-endian the least significant part is - stored first leading to the memory order $f[N] and - then $f[N+1]. - - Unfortunately, when big-endian the most significant - part of the double is stored first, and the least - significant is stored second. This leads to the - registers being ordered in memory as firt $f[N+1] and - then $f[N]. - - For the big-endian case make certain that the - addresses point at the correct (swapped) locations - $f[N] and $f[N+1] pair (keep in mind that - reg_position is decremented each time through the - loop). */ - if ((ireg & 1)) - set_reg_offset (saved_regs, - mips_regnum (current_gdbarch)->fp0 + ireg, - reg_position - mips_saved_regsize (tdep)); - else - set_reg_offset (saved_regs, - mips_regnum (current_gdbarch)->fp0 + ireg, - reg_position + mips_saved_regsize (tdep)); - } - else - set_reg_offset (saved_regs, - mips_regnum (current_gdbarch)->fp0 + ireg, - reg_position); - reg_position -= mips_saved_regsize (tdep); - } - - set_reg_offset (saved_regs, mips_regnum (current_gdbarch)->pc, - saved_regs[RA_REGNUM]); - } - - /* SP_REGNUM, contains the value and not the address. */ - set_reg_offset (saved_regs, SP_REGNUM, get_frame_base (fci)); -} - struct mips_frame_cache { CORE_ADDR base; @@ -2024,52 +1799,6 @@ mips_software_single_step (enum target_signal sig, int insert_breakpoints_p) target_remove_breakpoint (next_pc, break_mem); } -static CORE_ADDR -mips_init_frame_pc_first (int fromleaf, struct frame_info *prev) -{ - CORE_ADDR pc, tmp; - - pc = ((fromleaf) - ? DEPRECATED_SAVED_PC_AFTER_CALL (get_next_frame (prev)) - : get_next_frame (prev) - ? DEPRECATED_FRAME_SAVED_PC (get_next_frame (prev)) : read_pc ()); - tmp = SKIP_TRAMPOLINE_CODE (pc); - return tmp ? tmp : pc; -} - - -static CORE_ADDR -mips_frame_saved_pc (struct frame_info *frame) -{ - CORE_ADDR saved_pc; - struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); - - if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), 0, 0)) - { - /* Always unwind the cooked PC register value. */ - saved_pc = frame_unwind_register_signed (frame, NUM_REGS + mips_regnum (current_gdbarch)->pc); - } - else - { - mips_extra_func_info_t proc_desc - = get_frame_extra_info (frame)->proc_desc; - if (proc_desc && PROC_DESC_IS_DUMMY (proc_desc)) - saved_pc = read_memory_integer ((get_frame_base (frame) - - mips_saved_regsize (tdep)), - mips_saved_regsize (tdep)); - else - { - /* We have to get the saved pc from the sigcontext if it is - a signal handler frame. */ - int pcreg = (get_frame_type (frame) == SIGTRAMP_FRAME - ? mips_regnum (current_gdbarch)->pc - : proc_desc ? PROC_PC_REG (proc_desc) : RA_REGNUM); - saved_pc = read_next_frame_reg (frame, NUM_REGS + pcreg); - } - } - return ADDR_BITS_REMOVE (saved_pc); -} - static struct mips_extra_func_info temp_proc_desc; /* This hack will go away once the get_prev_frame() code has been @@ -2769,154 +2498,6 @@ find_proc_desc (CORE_ADDR pc, struct frame_info *next_frame, int cur_frame) return proc_desc; } -static CORE_ADDR -get_frame_pointer (struct frame_info *frame, mips_extra_func_info_t proc_desc) -{ - return (read_next_frame_reg (frame, NUM_REGS + PROC_FRAME_REG (proc_desc)) - + PROC_FRAME_OFFSET (proc_desc) - PROC_FRAME_ADJUST (proc_desc)); -} - -static mips_extra_func_info_t cached_proc_desc; - -static CORE_ADDR -mips_frame_chain (struct frame_info *frame) -{ - mips_extra_func_info_t proc_desc; - CORE_ADDR tmp; - CORE_ADDR saved_pc = DEPRECATED_FRAME_SAVED_PC (frame); - - /* Check if the PC is inside a call stub. If it is, fetch the - PC of the caller of that stub. */ - if ((tmp = SKIP_TRAMPOLINE_CODE (saved_pc)) != 0) - saved_pc = tmp; - - if (DEPRECATED_PC_IN_CALL_DUMMY (saved_pc, 0, 0)) - { - /* A dummy frame, uses SP not FP. Get the old SP value. If all - is well, frame->frame the bottom of the current frame will - contain that value. */ - return get_frame_base (frame); - } - - /* Look up the procedure descriptor for this PC. */ - proc_desc = find_proc_desc (saved_pc, frame, 1); - if (!proc_desc) - return 0; - - cached_proc_desc = proc_desc; - - /* If no frame pointer and frame size is zero, we must be at end - of stack (or otherwise hosed). If we don't check frame size, - we loop forever if we see a zero size frame. */ - if (PROC_FRAME_REG (proc_desc) == SP_REGNUM - && PROC_FRAME_OFFSET (proc_desc) == 0 - /* The previous frame from a sigtramp frame might be frameless - and have frame size zero. */ - && !(get_frame_type (frame) == SIGTRAMP_FRAME) - /* For a generic dummy frame, let get_frame_pointer() unwind a - register value saved as part of the dummy frame call. */ - && !(DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), 0, 0))) - return 0; - else - return get_frame_pointer (frame, proc_desc); -} - -static void -mips_init_extra_frame_info (int fromleaf, struct frame_info *fci) -{ - int regnum; - mips_extra_func_info_t proc_desc; - - if (get_frame_type (fci) == DUMMY_FRAME) - return; - - /* Use proc_desc calculated in frame_chain. When there is no - next frame, i.e, get_next_frame (fci) == NULL, we call - find_proc_desc () to calculate it, passing an explicit - NULL as the frame parameter. */ - proc_desc = - get_next_frame (fci) - ? cached_proc_desc - : find_proc_desc (get_frame_pc (fci), - NULL /* i.e, get_next_frame (fci) */ , - 1); - - frame_extra_info_zalloc (fci, sizeof (struct frame_extra_info)); - - get_frame_extra_info (fci)->proc_desc = - proc_desc == &temp_proc_desc ? 0 : proc_desc; - if (proc_desc) - { - /* Fixup frame-pointer - only needed for top frame */ - /* This may not be quite right, if proc has a real frame register. - Get the value of the frame relative sp, procedure might have been - interrupted by a signal at it's very start. */ - if (get_frame_pc (fci) == PROC_LOW_ADDR (proc_desc) - && !PROC_DESC_IS_DUMMY (proc_desc)) - deprecated_update_frame_base_hack (fci, - read_next_frame_reg (get_next_frame - (fci), - NUM_REGS + - SP_REGNUM)); - else if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fci), 0, 0)) - /* Do not ``fix'' fci->frame. It will have the value of the - generic dummy frame's top-of-stack (since the draft - fci->frame is obtained by returning the unwound stack - pointer) and that is what we want. That way the fci->frame - value will match the top-of-stack value that was saved as - part of the dummy frames data. */ - /* Do nothing. */ ; - else - deprecated_update_frame_base_hack (fci, - get_frame_pointer (get_next_frame - (fci), - proc_desc)); - - if (proc_desc == &temp_proc_desc) - { - char *name; - - /* Do not set the saved registers for a sigtramp frame, - mips_find_saved_registers will do that for us. We can't - use (get_frame_type (fci) == SIGTRAMP_FRAME), it is not - yet set. */ - /* FIXME: cagney/2002-11-18: This problem will go away once - frame.c:get_prev_frame() is modified to set the frame's - type before calling functions like this. */ - find_pc_partial_function (get_frame_pc (fci), &name, - (CORE_ADDR *) NULL, (CORE_ADDR *) NULL); - if (!PC_IN_SIGTRAMP (get_frame_pc (fci), name)) - { - frame_saved_regs_zalloc (fci); - /* Set value of previous frame's stack pointer. - Remember that saved_regs[SP_REGNUM] is special in - that it contains the value of the stack pointer - register. The other saved_regs values are addresses - (in the inferior) at which a given register's value - may be found. */ - set_reg_offset (temp_saved_regs, SP_REGNUM, - get_frame_base (fci)); - set_reg_offset (temp_saved_regs, mips_regnum (current_gdbarch)->pc, - temp_saved_regs[RA_REGNUM]); - memcpy (deprecated_get_frame_saved_regs (fci), temp_saved_regs, - SIZEOF_FRAME_SAVED_REGS); - } - } - - /* hack: if argument regs are saved, guess these contain args */ - /* assume we can't tell how many args for now */ - get_frame_extra_info (fci)->num_args = -1; - for (regnum = MIPS_LAST_ARG_REGNUM; regnum >= A0_REGNUM; regnum--) - { - if (PROC_REG_MASK (proc_desc) & (1 << regnum)) - { - get_frame_extra_info (fci)->num_args = regnum - A0_REGNUM + 1; - break; - } - } - } -} - /* MIPS stack frames are almost impenetrable. When execution stops, we basically have to look at symbol information for the function that we stopped in, which tells us *which* register (if any) is @@ -3513,7 +3094,6 @@ mips_n32n64_push_dummy_call (struct gdbarch *gdbarch, CORE_ADDR func_addr, for (argnum = 0; argnum < nargs; argnum++) { char *val; - char valbuf[MAX_REGISTER_SIZE]; struct value *arg = args[argnum]; struct type *arg_type = check_typedef (VALUE_TYPE (arg)); int len = TYPE_LENGTH (arg_type); @@ -3727,7 +3307,6 @@ mips_n32n64_return_value (struct gdbarch *gdbarch, /* A struct that contains one or two floats. Each value is part in the least significant part of their floating point register.. */ - bfd_byte reg[MAX_REGISTER_SIZE]; int regnum; int field; for (field = 0, regnum = mips_regnum (current_gdbarch)->fp0; @@ -3778,7 +3357,6 @@ mips_n32n64_return_value (struct gdbarch *gdbarch, offset += register_size (current_gdbarch, regnum), regnum++) { int xfer = register_size (current_gdbarch, regnum); - int pos = 0; if (offset + xfer > TYPE_LENGTH (type)) xfer = TYPE_LENGTH (type) - offset; if (mips_debug) @@ -3855,7 +3433,6 @@ mips_o32_push_dummy_call (struct gdbarch *gdbarch, CORE_ADDR func_addr, for (argnum = 0; argnum < nargs; argnum++) { char *val; - char valbuf[MAX_REGISTER_SIZE]; struct value *arg = args[argnum]; struct type *arg_type = check_typedef (VALUE_TYPE (arg)); int len = TYPE_LENGTH (arg_type); @@ -4230,7 +3807,6 @@ mips_o32_return_value (struct gdbarch *gdbarch, struct type *type, offset += mips_stack_argsize (tdep), regnum++) { int xfer = mips_stack_argsize (tdep); - int pos = 0; if (offset + xfer > TYPE_LENGTH (type)) xfer = TYPE_LENGTH (type) - offset; if (mips_debug) @@ -4309,7 +3885,6 @@ mips_o64_push_dummy_call (struct gdbarch *gdbarch, CORE_ADDR func_addr, for (argnum = 0; argnum < nargs; argnum++) { char *val; - char valbuf[MAX_REGISTER_SIZE]; struct value *arg = args[argnum]; struct type *arg_type = check_typedef (VALUE_TYPE (arg)); int len = TYPE_LENGTH (arg_type); @@ -4600,87 +4175,6 @@ mips_o64_store_return_value (struct type *valtype, char *valbuf) } } -static void -mips_pop_frame (void) -{ - int regnum; - struct frame_info *frame = get_current_frame (); - CORE_ADDR new_sp = get_frame_base (frame); - mips_extra_func_info_t proc_desc; - struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); - - if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), 0, 0)) - { - generic_pop_dummy_frame (); - flush_cached_frames (); - return; - } - - proc_desc = get_frame_extra_info (frame)->proc_desc; - write_register (mips_regnum (current_gdbarch)->pc, - DEPRECATED_FRAME_SAVED_PC (frame)); - mips_find_saved_regs (frame); - for (regnum = 0; regnum < NUM_REGS; regnum++) - if (regnum != SP_REGNUM && regnum != mips_regnum (current_gdbarch)->pc - && deprecated_get_frame_saved_regs (frame)[regnum]) - { - /* Floating point registers must not be sign extended, in case - mips_saved_regsize() = 4 but sizeof (FP0_REGNUM) == 8. */ - - if (mips_regnum (current_gdbarch)->fp0 <= regnum - && regnum < mips_regnum (current_gdbarch)->fp0 + 32) - write_register (regnum, - read_memory_unsigned_integer - (deprecated_get_frame_saved_regs (frame)[regnum], - mips_saved_regsize (tdep))); - else - write_register (regnum, - read_memory_integer (deprecated_get_frame_saved_regs - (frame)[regnum], - mips_saved_regsize (tdep))); - } - - write_register (SP_REGNUM, new_sp); - flush_cached_frames (); - - if (proc_desc && PROC_DESC_IS_DUMMY (proc_desc)) - { - struct linked_proc_info *pi_ptr, *prev_ptr; - - for (pi_ptr = linked_proc_desc_table, prev_ptr = NULL; - pi_ptr != NULL; prev_ptr = pi_ptr, pi_ptr = pi_ptr->next) - { - if (&pi_ptr->info == proc_desc) - break; - } - - if (pi_ptr == NULL) - error ("Can't locate dummy extra frame info\n"); - - if (prev_ptr != NULL) - prev_ptr->next = pi_ptr->next; - else - linked_proc_desc_table = pi_ptr->next; - - xfree (pi_ptr); - - write_register (mips_regnum (current_gdbarch)->hi, - read_memory_integer ((new_sp - - 2 * mips_saved_regsize (tdep)), - mips_saved_regsize (tdep))); - write_register (mips_regnum (current_gdbarch)->lo, - read_memory_integer ((new_sp - - 3 * mips_saved_regsize (tdep)), - mips_saved_regsize (tdep))); - if (MIPS_FPU_TYPE != MIPS_FPU_NONE) - write_register (mips_regnum (current_gdbarch)->fp_control_status, - read_memory_integer ((new_sp - - - 4 * mips_saved_regsize (tdep)), - mips_saved_regsize (tdep))); - } -} - /* Floating point register management. Background: MIPS1 & 2 fp registers are 32 bits wide. To support @@ -4804,8 +4298,8 @@ mips_print_fp_register (struct ui_file *file, struct frame_info *frame, int regnum) { /* do values for FP (float) regs */ char *raw_buffer; - double doub, flt1, flt2; /* doubles extracted from raw hex data */ - int inv1, inv2, namelen; + double doub, flt1; /* doubles extracted from raw hex data */ + int inv1, inv2; raw_buffer = (char *) alloca (2 * @@ -5796,65 +5290,6 @@ mips_ignore_helper (CORE_ADDR pc) } -/* When debugging a 64 MIPS target running a 32 bit ABI, the size of - the register stored on the stack (32) is different to its real raw - size (64). The below ensures that registers are fetched from the - stack using their ABI size and then stored into the RAW_BUFFER - using their raw size. - - The alternative to adding this function would be to add an ABI - macro - REGISTER_STACK_SIZE(). */ - -static void -mips_get_saved_register (char *raw_buffer, - int *optimizedp, - CORE_ADDR *addrp, - struct frame_info *frame, - int regnum, enum lval_type *lvalp) -{ - CORE_ADDR addrx; - enum lval_type lvalx; - int optimizedx; - int realnumx; - - /* Always a pseudo. */ - gdb_assert (regnum >= NUM_REGS); - - /* Make certain that all needed parameters are present. */ - if (addrp == NULL) - addrp = &addrx; - if (lvalp == NULL) - lvalp = &lvalx; - if (optimizedp == NULL) - optimizedp = &optimizedx; - - if ((regnum % NUM_REGS) == SP_REGNUM) - /* The SP_REGNUM is special, its value is stored in saved_regs. - In fact, it is so special that it can even only be fetched - using a raw register number! Once this code as been converted - to frame-unwind the problem goes away. */ - frame_register_unwind (deprecated_get_next_frame_hack (frame), - regnum % NUM_REGS, optimizedp, lvalp, addrp, - &realnumx, raw_buffer); - else - /* Get it from the next frame. */ - frame_register_unwind (deprecated_get_next_frame_hack (frame), - regnum, optimizedp, lvalp, addrp, - &realnumx, raw_buffer); -} - -/* Immediately after a function call, return the saved pc. - Can't always go through the frames for this because on some machines - the new frame is not set up until the new function executes - some instructions. */ - -static CORE_ADDR -mips_saved_pc_after_call (struct frame_info *frame) -{ - return read_signed_register (RA_REGNUM); -} - - /* Convert a dbx stab register number (from `r' declaration) to a GDB [1 * NUM_REGS .. 2 * NUM_REGS) REGNUM. */ @@ -6328,35 +5763,11 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) ensure that all 32 bit addresses are sign extended to 64 bits. */ set_gdbarch_addr_bits_remove (gdbarch, mips_addr_bits_remove); -#if 1 /* Unwind the frame. */ set_gdbarch_unwind_pc (gdbarch, mips_unwind_pc); frame_unwind_append_sniffer (gdbarch, mips_mdebug_frame_sniffer); set_gdbarch_unwind_dummy_id (gdbarch, mips_unwind_dummy_id); frame_base_append_sniffer (gdbarch, mips_mdebug_frame_base_sniffer); -#else - set_gdbarch_deprecated_target_read_fp (gdbarch, mips_read_sp); /* Draft FRAME base. */ - /* Initialize a frame */ - set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, - mips_find_saved_regs); - set_gdbarch_deprecated_init_extra_frame_info (gdbarch, - mips_init_extra_frame_info); - /* There's a mess in stack frame creation. See comments in - blockframe.c near reference to DEPRECATED_INIT_FRAME_PC_FIRST. */ - set_gdbarch_deprecated_init_frame_pc_first (gdbarch, - mips_init_frame_pc_first); - set_gdbarch_deprecated_pop_frame (gdbarch, mips_pop_frame); - set_gdbarch_deprecated_save_dummy_frame_tos (gdbarch, - generic_save_dummy_frame_tos); - set_gdbarch_deprecated_frame_chain (gdbarch, mips_frame_chain); - set_gdbarch_frameless_function_invocation (gdbarch, - generic_frameless_function_invocation_not); - set_gdbarch_deprecated_frame_saved_pc (gdbarch, mips_frame_saved_pc); - set_gdbarch_deprecated_get_saved_register (gdbarch, - mips_get_saved_register); - set_gdbarch_deprecated_saved_pc_after_call (gdbarch, - mips_saved_pc_after_call); -#endif /* Map debug register numbers onto internal register numbers. */ set_gdbarch_stab_reg_to_regnum (gdbarch, mips_stab_reg_to_regnum); @@ -6624,17 +6035,6 @@ mips_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file) XSTRING (SETUP_ARBITRARY_FRAME (NUMARGS, ARGS))); fprintf_unfiltered (file, "mips_dump_tdep: SET_PROC_DESC_IS_DUMMY = function?\n"); - fprintf_unfiltered (file, - "mips_dump_tdep: SIGFRAME_BASE = %d\n", SIGFRAME_BASE); - fprintf_unfiltered (file, - "mips_dump_tdep: SIGFRAME_FPREGSAVE_OFF = %d\n", - SIGFRAME_FPREGSAVE_OFF); - fprintf_unfiltered (file, - "mips_dump_tdep: SIGFRAME_PC_OFF = %d\n", - SIGFRAME_PC_OFF); - fprintf_unfiltered (file, - "mips_dump_tdep: SIGFRAME_REGSAVE_OFF = %d\n", - SIGFRAME_REGSAVE_OFF); fprintf_unfiltered (file, "mips_dump_tdep: SKIP_TRAMPOLINE_CODE # %s\n", XSTRING (SKIP_TRAMPOLINE_CODE (PC))); -- 2.30.2