X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gdb%2Fv850-tdep.c;h=534e956506628b0d18944602e79dacc09ec77cd4;hb=09d15f2aa8defb0fda30196567e391147f551128;hp=d6da5f39a8267ab86760b17ecc835273aca0cd65;hpb=ea45efcfe3be7fe4420af3c5ae3b08d5a51becc0;p=binutils-gdb.git diff --git a/gdb/v850-tdep.c b/gdb/v850-tdep.c index d6da5f39a82..534e9565066 100644 --- a/gdb/v850-tdep.c +++ b/gdb/v850-tdep.c @@ -1,21 +1,22 @@ /* Target-dependent code for the NEC V850 for GDB, the GNU debugger. - Copyright 1996, Free Software Foundation, Inc. + Copyright 1996, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. -This file is part of GDB. + 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 -(at your option) any later version. + 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 + (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. + 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, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + 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. */ #include "defs.h" #include "frame.h" @@ -27,28 +28,261 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "gdb_string.h" #include "gdbcore.h" #include "symfile.h" +#include "arch-utils.h" +#include "regcache.h" -/* Info gleaned from scanning a function's prologue. */ -struct pifsr /* Info about one saved reg */ +static char *v850_generic_reg_names[] = REGISTER_NAMES; + +static char *v850e_reg_names[] = +{ + "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", + "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", + "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", + "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", + "eipc", "eipsw", "fepc", "fepsw", "ecr", "psw", "sr6", "sr7", + "sr8", "sr9", "sr10", "sr11", "sr12", "sr13", "sr14", "sr15", + "ctpc", "ctpsw", "dbpc", "dbpsw", "ctbp", "sr21", "sr22", "sr23", + "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31", + "pc", "fp" +}; + +char **v850_register_names = v850_generic_reg_names; + +struct + { + char **regnames; + int mach; + } +v850_processor_type_table[] = { - int framereg; /* Frame reg (SP or FP) */ - int offset; /* Offset from framereg */ - int cur_frameoffset; /* Current frameoffset */ - int reg; /* Saved register number */ + { + v850_generic_reg_names, bfd_mach_v850 + } + , + { + v850e_reg_names, bfd_mach_v850e + } + , + { + v850e_reg_names, bfd_mach_v850ea + } + , + { + NULL, 0 + } }; +/* Info gleaned from scanning a function's prologue. */ + +struct pifsr /* Info about one saved reg */ + { + int framereg; /* Frame reg (SP or FP) */ + int offset; /* Offset from framereg */ + int cur_frameoffset; /* Current frameoffset */ + int reg; /* Saved register number */ + }; + struct prologue_info + { + int framereg; + int frameoffset; + int start_function; + struct pifsr *pifsrs; + }; + +static CORE_ADDR v850_scan_prologue (CORE_ADDR pc, struct prologue_info *fs); + + +/* Should call_function allocate stack space for a struct return? */ +int +v850_use_struct_convention (int gcc_p, struct type *type) +{ + return (TYPE_NFIELDS (type) > 1 || TYPE_LENGTH (type) > 4); +} + + + +/* Structure for mapping bits in register lists to register numbers. */ +struct reg_list { - int framereg; - int frameoffset; - int start_function; - struct pifsr *pifsrs; + long mask; + int regno; }; -static CORE_ADDR v850_scan_prologue PARAMS ((CORE_ADDR pc, - struct prologue_info *fs)); +/* Helper function for v850_scan_prologue to handle prepare instruction. */ + +static void +handle_prepare (int insn, int insn2, CORE_ADDR * current_pc_ptr, + struct prologue_info *pi, struct pifsr **pifsr_ptr) +{ + CORE_ADDR current_pc = *current_pc_ptr; + struct pifsr *pifsr = *pifsr_ptr; + long next = insn2 & 0xffff; + long list12 = ((insn & 1) << 16) + (next & 0xffe0); + long offset = (insn & 0x3e) << 1; + static struct reg_list reg_table[] = + { + {0x00800, 20}, /* r20 */ + {0x00400, 21}, /* r21 */ + {0x00200, 22}, /* r22 */ + {0x00100, 23}, /* r23 */ + {0x08000, 24}, /* r24 */ + {0x04000, 25}, /* r25 */ + {0x02000, 26}, /* r26 */ + {0x01000, 27}, /* r27 */ + {0x00080, 28}, /* r28 */ + {0x00040, 29}, /* r29 */ + {0x10000, 30}, /* ep */ + {0x00020, 31}, /* lp */ + {0, 0} /* end of table */ + }; + int i; + + if ((next & 0x1f) == 0x0b) /* skip imm16 argument */ + current_pc += 2; + else if ((next & 0x1f) == 0x13) /* skip imm16 argument */ + current_pc += 2; + else if ((next & 0x1f) == 0x1b) /* skip imm32 argument */ + current_pc += 4; + + /* Calculate the total size of the saved registers, and add it + it to the immediate value used to adjust SP. */ + for (i = 0; reg_table[i].mask != 0; i++) + if (list12 & reg_table[i].mask) + offset += REGISTER_RAW_SIZE (regtable[i].regno); + pi->frameoffset -= offset; + + /* Calculate the offsets of the registers relative to the value + the SP will have after the registers have been pushed and the + imm5 value has been subtracted from it. */ + if (pifsr) + { + for (i = 0; reg_table[i].mask != 0; i++) + { + if (list12 & reg_table[i].mask) + { + int reg = reg_table[i].regno; + offset -= REGISTER_RAW_SIZE (reg); + pifsr->reg = reg; + pifsr->offset = offset; + pifsr->cur_frameoffset = pi->frameoffset; +#ifdef DEBUG + printf_filtered ("\tSaved register r%d, offset %d", reg, pifsr->offset); +#endif + pifsr++; + } + } + } +#ifdef DEBUG + printf_filtered ("\tfound ctret after regsave func"); +#endif + + /* Set result parameters. */ + *current_pc_ptr = current_pc; + *pifsr_ptr = pifsr; +} + + +/* Helper function for v850_scan_prologue to handle pushm/pushl instructions. + FIXME: the SR bit of the register list is not supported; must check + that the compiler does not ever generate this bit. */ + +static void +handle_pushm (int insn, int insn2, struct prologue_info *pi, + struct pifsr **pifsr_ptr) +{ + struct pifsr *pifsr = *pifsr_ptr; + long list12 = ((insn & 0x0f) << 16) + (insn2 & 0xfff0); + long offset = 0; + static struct reg_list pushml_reg_table[] = + { + {0x80000, PS_REGNUM}, /* PSW */ + {0x40000, 1}, /* r1 */ + {0x20000, 2}, /* r2 */ + {0x10000, 3}, /* r3 */ + {0x00800, 4}, /* r4 */ + {0x00400, 5}, /* r5 */ + {0x00200, 6}, /* r6 */ + {0x00100, 7}, /* r7 */ + {0x08000, 8}, /* r8 */ + {0x04000, 9}, /* r9 */ + {0x02000, 10}, /* r10 */ + {0x01000, 11}, /* r11 */ + {0x00080, 12}, /* r12 */ + {0x00040, 13}, /* r13 */ + {0x00020, 14}, /* r14 */ + {0x00010, 15}, /* r15 */ + {0, 0} /* end of table */ + }; + static struct reg_list pushmh_reg_table[] = + { + {0x80000, 16}, /* r16 */ + {0x40000, 17}, /* r17 */ + {0x20000, 18}, /* r18 */ + {0x10000, 19}, /* r19 */ + {0x00800, 20}, /* r20 */ + {0x00400, 21}, /* r21 */ + {0x00200, 22}, /* r22 */ + {0x00100, 23}, /* r23 */ + {0x08000, 24}, /* r24 */ + {0x04000, 25}, /* r25 */ + {0x02000, 26}, /* r26 */ + {0x01000, 27}, /* r27 */ + {0x00080, 28}, /* r28 */ + {0x00040, 29}, /* r29 */ + {0x00010, 30}, /* r30 */ + {0x00020, 31}, /* r31 */ + {0, 0} /* end of table */ + }; + struct reg_list *reg_table; + int i; + + /* Is this a pushml or a pushmh? */ + if ((insn2 & 7) == 1) + reg_table = pushml_reg_table; + else + reg_table = pushmh_reg_table; + + /* Calculate the total size of the saved registers, and add it + it to the immediate value used to adjust SP. */ + for (i = 0; reg_table[i].mask != 0; i++) + if (list12 & reg_table[i].mask) + offset += REGISTER_RAW_SIZE (regtable[i].regno); + pi->frameoffset -= offset; + + /* Calculate the offsets of the registers relative to the value + the SP will have after the registers have been pushed and the + imm5 value is subtracted from it. */ + if (pifsr) + { + for (i = 0; reg_table[i].mask != 0; i++) + { + if (list12 & reg_table[i].mask) + { + int reg = reg_table[i].regno; + offset -= REGISTER_RAW_SIZE (reg); + pifsr->reg = reg; + pifsr->offset = offset; + pifsr->cur_frameoffset = pi->frameoffset; +#ifdef DEBUG + printf_filtered ("\tSaved register r%d, offset %d", reg, pifsr->offset); +#endif + pifsr++; + } + } + } +#ifdef DEBUG + printf_filtered ("\tfound ctret after regsave func"); +#endif + + /* Set result parameters. */ + *pifsr_ptr = pifsr; +} + + + /* Function: scan_prologue Scan the prologue of the function that contains PC, and record what we find in PI. PI->fsr must be zeroed by the called. Returns the @@ -59,9 +293,7 @@ static CORE_ADDR v850_scan_prologue PARAMS ((CORE_ADDR pc, be determined till after we have scanned the prologue. */ static CORE_ADDR -v850_scan_prologue (pc, pi) - CORE_ADDR pc; - struct prologue_info *pi; +v850_scan_prologue (CORE_ADDR pc, struct prologue_info *pi) { CORE_ADDR func_addr, prologue_end, current_pc; struct pifsr *pifsr, *pifsr_tmp; @@ -70,7 +302,6 @@ v850_scan_prologue (pc, pi) int reg; CORE_ADDR save_pc, save_end; int regsave_func_p; - int current_sp_size; int r12_tmp; /* First, figure out the bounds of the prologue so that we can limit the @@ -106,7 +337,7 @@ v850_scan_prologue (pc, pi) /* Now, search the prologue looking for instructions that setup fp, save rp, adjust sp and such. We also record the frame offset of any saved - registers. */ + registers. */ pi->frameoffset = 0; pi->framereg = SP_REGNUM; @@ -120,51 +351,99 @@ v850_scan_prologue (pc, pi) #ifdef DEBUG printf_filtered ("Current_pc = 0x%.8lx, prologue_end = 0x%.8lx\n", - (long)func_addr, (long)prologue_end); + (long) func_addr, (long) prologue_end); #endif - for (current_pc = func_addr; current_pc < prologue_end; current_pc += 2) + for (current_pc = func_addr; current_pc < prologue_end;) { int insn; + int insn2 = -1; /* dummy value */ #ifdef DEBUG - printf_filtered ("0x%.8lx ", (long)current_pc); - (*tm_print_insn) (current_pc, &tm_print_insn_info); + printf_filtered ("0x%.8lx ", (long) current_pc); + TARGET_PRINT_INSN (current_pc, &tm_print_insn_info); #endif insn = read_memory_unsigned_integer (current_pc, 2); + current_pc += 2; + if ((insn & 0x0780) >= 0x0600) /* Four byte instruction? */ + { + insn2 = read_memory_unsigned_integer (current_pc, 2); + current_pc += 2; + } if ((insn & 0xffc0) == ((10 << 11) | 0x0780) && !regsave_func_p) { /* jarl ,10 */ - long low_disp = read_memory_unsigned_integer (current_pc + 2, 2) & ~ (long) 1; + long low_disp = insn2 & ~(long) 1; long disp = (((((insn & 0x3f) << 16) + low_disp) - & ~ (long) 1) ^ 0x00200000) - 0x00200000; + & ~(long) 1) ^ 0x00200000) - 0x00200000; save_pc = current_pc; save_end = prologue_end; regsave_func_p = 1; - current_pc += disp - 2; + current_pc += disp - 4; prologue_end = (current_pc + (2 * 3) /* moves to/from ep */ - + 4 /* addi ,sp,sp */ - + 2 /* jmp [r10] */ + + 4 /* addi ,sp,sp */ + + 2 /* jmp [r10] */ + (2 * 12) /* sst.w to save r2, r20-r29, r31 */ + 20); /* slop area */ #ifdef DEBUG printf_filtered ("\tfound jarl ,r10, disp = %ld, low_disp = %ld, new pc = 0x%.8lx\n", - disp, low_disp, (long)current_pc + 2); + disp, low_disp, (long) current_pc + 2); +#endif + continue; + } + else if ((insn & 0xffc0) == 0x0200 && !regsave_func_p) + { /* callt */ + long ctbp = read_register (CTBP_REGNUM); + long adr = ctbp + ((insn & 0x3f) << 1); + + save_pc = current_pc; + save_end = prologue_end; + regsave_func_p = 1; + current_pc = ctbp + (read_memory_unsigned_integer (adr, 2) & 0xffff); + prologue_end = (current_pc + + (2 * 3) /* prepare list2,imm5,sp/imm */ + + 4 /* ctret */ + + 20); /* slop area */ + +#ifdef DEBUG + printf_filtered ("\tfound callt, ctbp = 0x%.8lx, adr = %.8lx, new pc = 0x%.8lx\n", + ctbp, adr, (long) current_pc); +#endif + continue; + } + else if ((insn & 0xffc0) == 0x0780) /* prepare list2,imm5 */ + { + handle_prepare (insn, insn2, ¤t_pc, pi, &pifsr); + continue; + } + else if (insn == 0x07e0 && regsave_func_p && insn2 == 0x0144) + { /* ctret after processing register save function */ + current_pc = save_pc; + prologue_end = save_end; + regsave_func_p = 0; +#ifdef DEBUG + printf_filtered ("\tfound ctret after regsave func"); #endif continue; } + else if ((insn & 0xfff0) == 0x07e0 && (insn2 & 5) == 1) + { /* pushml, pushmh */ + handle_pushm (insn, insn2, pi, &pifsr); + continue; + } else if ((insn & 0xffe0) == 0x0060 && regsave_func_p) { /* jmp after processing register save function */ - current_pc = save_pc + 2; + current_pc = save_pc; prologue_end = save_end; regsave_func_p = 0; #ifdef DEBUG printf_filtered ("\tfound jmp after regsave func"); #endif + continue; } else if ((insn & 0x07c0) == 0x0780 /* jarl or jr */ || (insn & 0xffe0) == 0x0060 /* jmp */ @@ -173,13 +452,13 @@ v850_scan_prologue (pc, pi) #ifdef DEBUG printf_filtered ("\n"); #endif - break; /* Ran into end of prologue */ + break; /* Ran into end of prologue */ } else if ((insn & 0xffe0) == ((SP_REGNUM << 11) | 0x0240)) /* add ,sp */ pi->frameoffset += ((insn & 0x1f) ^ 0x10) - 0x10; else if (insn == ((SP_REGNUM << 11) | 0x0600 | SP_REGNUM)) /* addi ,sp,sp */ - pi->frameoffset += read_memory_integer (current_pc + 2, 2); + pi->frameoffset += insn2; else if (insn == ((FP_RAW_REGNUM << 11) | 0x0000 | SP_REGNUM)) /* mov sp,fp */ { fp_used = 1; @@ -187,25 +466,25 @@ v850_scan_prologue (pc, pi) } else if (insn == ((R12_REGNUM << 11) | 0x0640 | R0_REGNUM)) /* movhi hi(const),r0,r12 */ - r12_tmp = read_memory_integer (current_pc + 2, 2) << 16; + r12_tmp = insn2 << 16; else if (insn == ((R12_REGNUM << 11) | 0x0620 | R12_REGNUM)) /* movea lo(const),r12,r12 */ - r12_tmp += read_memory_integer (current_pc + 2, 2); - else if (insn == ((SP_REGNUM << 11) | 0x01c0 | R12_REGNUM) && r12_tmp) /* add r12,sp */ + r12_tmp += insn2; + else if (insn == ((SP_REGNUM << 11) | 0x01c0 | R12_REGNUM) && r12_tmp) /* add r12,sp */ pi->frameoffset = r12_tmp; else if (insn == ((EP_REGNUM << 11) | 0x0000 | SP_REGNUM)) /* mov sp,ep */ ep_used = 1; else if (insn == ((EP_REGNUM << 11) | 0x0000 | R1_REGNUM)) /* mov r1,ep */ ep_used = 0; - else if (((insn & 0x07ff) == (0x0760 | SP_REGNUM) /* st.w ,[sp] */ + else if (((insn & 0x07ff) == (0x0760 | SP_REGNUM) /* st.w ,[sp] */ || (fp_used && (insn & 0x07ff) == (0x0760 | FP_RAW_REGNUM))) /* st.w ,[fp] */ && pifsr && (((reg = (insn >> 11) & 0x1f) >= SAVE1_START_REGNUM && reg <= SAVE1_END_REGNUM) || (reg >= SAVE2_START_REGNUM && reg <= SAVE2_END_REGNUM) - || (reg >= SAVE3_START_REGNUM && reg <= SAVE3_END_REGNUM))) + || (reg >= SAVE3_START_REGNUM && reg <= SAVE3_END_REGNUM))) { pifsr->reg = reg; - pifsr->offset = read_memory_integer (current_pc + 2, 2) & ~1; + pifsr->offset = insn2 & ~1; pifsr->cur_frameoffset = pi->frameoffset; #ifdef DEBUG printf_filtered ("\tSaved register r%d, offset %d", reg, pifsr->offset); @@ -213,12 +492,12 @@ v850_scan_prologue (pc, pi) pifsr++; } - else if (ep_used /* sst.w ,[ep] */ + else if (ep_used /* sst.w ,[ep] */ && ((insn & 0x0781) == 0x0501) && pifsr && (((reg = (insn >> 11) & 0x1f) >= SAVE1_START_REGNUM && reg <= SAVE1_END_REGNUM) || (reg >= SAVE2_START_REGNUM && reg <= SAVE2_END_REGNUM) - || (reg >= SAVE3_START_REGNUM && reg <= SAVE3_END_REGNUM))) + || (reg >= SAVE3_START_REGNUM && reg <= SAVE3_END_REGNUM))) { pifsr->reg = reg; pifsr->offset = (insn & 0x007e) << 1; @@ -229,9 +508,6 @@ v850_scan_prologue (pc, pi) pifsr++; } - if ((insn & 0x0780) >= 0x0600) /* Four byte instruction? */ - current_pc += 2; - #ifdef DEBUG printf_filtered ("\n"); #endif @@ -249,7 +525,7 @@ v850_scan_prologue (pc, pi) #ifdef DEBUG printf_filtered ("Saved register r%d, offset = %d, framereg = r%d\n", - pifsr_tmp->reg, pifsr_tmp->offset, pifsr_tmp->framereg); + pifsr_tmp->reg, pifsr_tmp->offset, pifsr_tmp->framereg); #endif } @@ -274,12 +550,10 @@ v850_scan_prologue (pc, pi) pointer just prior to calling the target function (see run_stack_dummy). */ void -v850_init_extra_frame_info (fi) - struct frame_info *fi; +v850_init_extra_frame_info (struct frame_info *fi) { struct prologue_info pi; struct pifsr pifsrs[NUM_REGS + 1], *pifsr; - int reg; if (fi->next) fi->pc = FRAME_SAVED_PC (fi->next); @@ -289,7 +563,7 @@ v850_init_extra_frame_info (fi) /* The call dummy doesn't save any registers on the stack, so we can return now. */ if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame)) - return; + return; pi.pifsrs = pifsrs; @@ -315,8 +589,7 @@ v850_init_extra_frame_info (fi) function call was made. */ CORE_ADDR -v850_frame_chain (fi) - struct frame_info *fi; +v850_frame_chain (struct frame_info *fi) { struct prologue_info pi; CORE_ADDR callers_pc, fp; @@ -325,8 +598,8 @@ v850_frame_chain (fi) callers_pc = FRAME_SAVED_PC (fi); /* If caller is a call-dummy, then our FP bears no relation to his FP! */ fp = v850_find_callers_reg (fi, FP_RAW_REGNUM); - if (PC_IN_CALL_DUMMY(callers_pc, fp, fp)) - return fp; /* caller is call-dummy: return oldest value of FP */ + if (PC_IN_CALL_DUMMY (callers_pc, fp, fp)) + return fp; /* caller is call-dummy: return oldest value of FP */ /* Caller is NOT a call-dummy, so everything else should just work. Even if THIS frame is a call-dummy! */ @@ -352,16 +625,14 @@ v850_frame_chain (fi) frame. */ CORE_ADDR -v850_find_callers_reg (fi, regnum) - struct frame_info *fi; - int regnum; +v850_find_callers_reg (struct frame_info *fi, int regnum) { for (; fi; fi = fi->next) if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame)) return generic_read_register_dummy (fi->pc, fi->frame, regnum); else if (fi->fsr.regs[regnum] != 0) - return read_memory_unsigned_integer (fi->fsr.regs[regnum], - REGISTER_RAW_SIZE(regnum)); + return read_memory_unsigned_integer (fi->fsr.regs[regnum], + REGISTER_RAW_SIZE (regnum)); return read_register (regnum); } @@ -370,8 +641,7 @@ v850_find_callers_reg (fi, regnum) Return the address of the first code past the prologue of the function. */ CORE_ADDR -v850_skip_prologue (pc) - CORE_ADDR pc; +v850_skip_prologue (CORE_ADDR pc) { CORE_ADDR func_addr, func_end; @@ -401,12 +671,11 @@ v850_skip_prologue (pc) command, or the call dummy breakpoint gets hit. */ void -v850_pop_frame (frame) - struct frame_info *frame; +v850_pop_frame (struct frame_info *frame) { int regnum; - if (PC_IN_CALL_DUMMY(frame->pc, frame->frame, frame->frame)) + if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame)) generic_pop_dummy_frame (); else { @@ -415,8 +684,8 @@ v850_pop_frame (frame) for (regnum = 0; regnum < NUM_REGS; regnum++) if (frame->fsr.regs[regnum] != 0) write_register (regnum, - read_memory_unsigned_integer (frame->fsr.regs[regnum], - REGISTER_RAW_SIZE(regnum))); + read_memory_unsigned_integer (frame->fsr.regs[regnum], + REGISTER_RAW_SIZE (regnum))); write_register (SP_REGNUM, FRAME_FP (frame)); } @@ -433,15 +702,11 @@ v850_pop_frame (frame) in as a secret first argument (always in R6). Stack space for the args has NOT been allocated: that job is up to us. - */ + */ CORE_ADDR -v850_push_arguments (nargs, args, sp, struct_return, struct_addr) - int nargs; - value_ptr *args; - CORE_ADDR sp; - unsigned char struct_return; - CORE_ADDR struct_addr; +v850_push_arguments (int nargs, struct value **args, CORE_ADDR sp, + unsigned char struct_return, CORE_ADDR struct_addr) { int argreg; int argnum; @@ -453,15 +718,15 @@ v850_push_arguments (nargs, args, sp, struct_return, struct_addr) /* Now make space on the stack for the args. */ for (argnum = 0; argnum < nargs; argnum++) - len += ((TYPE_LENGTH(VALUE_TYPE(args[argnum])) + 3) & ~3); - sp -= len; /* possibly over-allocating, but it works... */ - /* (you might think we could allocate 16 bytes */ - /* less, but the ABI seems to use it all! ) */ + len += ((TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 3) & ~3); + sp -= len; /* possibly over-allocating, but it works... */ + /* (you might think we could allocate 16 bytes */ + /* less, but the ABI seems to use it all! ) */ argreg = ARG0_REGNUM; /* the struct_return pointer occupies the first parameter-passing reg */ if (struct_return) - write_register (argreg++, struct_addr); + write_register (argreg++, struct_addr); stack_offset = 16; /* The offset onto the stack at which we will start copying parameters @@ -475,7 +740,7 @@ v850_push_arguments (nargs, args, sp, struct_return, struct_addr) { int len; char *val; - char valbuf[REGISTER_RAW_SIZE(ARG0_REGNUM)]; + char valbuf[REGISTER_RAW_SIZE (ARG0_REGNUM)]; if (TYPE_CODE (VALUE_TYPE (*args)) == TYPE_CODE_STRUCT && TYPE_LENGTH (VALUE_TYPE (*args)) > 8) @@ -487,11 +752,11 @@ v850_push_arguments (nargs, args, sp, struct_return, struct_addr) else { len = TYPE_LENGTH (VALUE_TYPE (*args)); - val = (char *)VALUE_CONTENTS (*args); + val = (char *) VALUE_CONTENTS (*args); } while (len > 0) - if (argreg <= ARGLAST_REGNUM) + if (argreg <= ARGLAST_REGNUM) { CORE_ADDR regval; @@ -518,16 +783,14 @@ v850_push_arguments (nargs, args, sp, struct_return, struct_addr) /* Function: push_return_address (pc) Set up the return address for the inferior function call. Needed for targets where we don't actually execute a JSR/BSR instruction */ - + CORE_ADDR -v850_push_return_address (pc, sp) - CORE_ADDR pc; - CORE_ADDR sp; +v850_push_return_address (CORE_ADDR pc, CORE_ADDR sp) { write_register (RP_REGNUM, CALL_DUMMY_ADDRESS ()); return sp; } - + /* Function: frame_saved_pc Find the caller of this frame. We do this by seeing if RP_REGNUM is saved in the stack anywhere, otherwise we get it from the @@ -536,45 +799,25 @@ v850_push_return_address (pc, sp) will be found. */ CORE_ADDR -v850_frame_saved_pc (fi) - struct frame_info *fi; +v850_frame_saved_pc (struct frame_info *fi) { - if (PC_IN_CALL_DUMMY(fi->pc, fi->frame, fi->frame)) - return generic_read_register_dummy(fi->pc, fi->frame, PC_REGNUM); + if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame)) + return generic_read_register_dummy (fi->pc, fi->frame, PC_REGNUM); else return v850_find_callers_reg (fi, RP_REGNUM); } -void -get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval) - char *raw_buffer; - int *optimized; - CORE_ADDR *addrp; - struct frame_info *frame; - int regnum; - enum lval_type *lval; -{ - generic_get_saved_register (raw_buffer, optimized, addrp, - frame, regnum, lval); -} - /* Function: fix_call_dummy Pokes the callee function's address into the CALL_DUMMY assembly stub. Assumes that the CALL_DUMMY looks like this: - jarl , r31 - trap - */ + jarl , r31 + trap + */ int -v850_fix_call_dummy (dummy, sp, fun, nargs, args, type, gcc_p) - char *dummy; - CORE_ADDR sp; - CORE_ADDR fun; - int nargs; - value_ptr *args; - struct type *type; - int gcc_p; +v850_fix_call_dummy (char *dummy, CORE_ADDR sp, CORE_ADDR fun, int nargs, + struct value **args, struct type *type, int gcc_p) { long offset24; @@ -582,13 +825,38 @@ v850_fix_call_dummy (dummy, sp, fun, nargs, args, type, gcc_p) offset24 &= 0x3fffff; offset24 |= 0xff800000; /* jarl , r31 */ - store_unsigned_integer ((unsigned int *)&dummy[2], 2, offset24 & 0xffff); - store_unsigned_integer ((unsigned int *)&dummy[0], 2, offset24 >> 16); + store_unsigned_integer ((unsigned int *) &dummy[2], 2, offset24 & 0xffff); + store_unsigned_integer ((unsigned int *) &dummy[0], 2, offset24 >> 16); return 0; } +/* Change the register names based on the current machine type. */ + +static int +v850_target_architecture_hook (const bfd_arch_info_type *ap) +{ + int i, j; + + if (ap->arch != bfd_arch_v850) + return 0; + + for (i = 0; v850_processor_type_table[i].regnames != NULL; i++) + { + if (v850_processor_type_table[i].mach == ap->mach) + { + v850_register_names = v850_processor_type_table[i].regnames; + tm_print_insn_info.mach = ap->mach; + return 1; + } + } + + internal_error (__FILE__, __LINE__, + "Architecture `%s' unrecognized", ap->printable_name); +} + void -_initialize_v850_tdep () +_initialize_v850_tdep (void) { tm_print_insn = print_insn_v850; + target_architecture_hook = v850_target_architecture_hook; }