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5ecb7103b5
* frv-linux-tdep.c: New file. * frv-tdep.c (struct gdbarch_tdep): Add new field ``sigcontext_reg_addr''. (frv_set_sigcontext_reg_addr, frv_sigtramp,frame_cache) (frv_sigtramp_frame_this_id, frv_sigtramp_frame_prev_register) (frv_sigramp_frame_sniffer): New functions. (frv_sigtramp_frame_unwind): New static global. (frv_gdbarch_init): Hook in ABI-specific overrides. Hook up frame sniffers. * frv-tdep.h (frv_set_sigcontext_reg_addr): New function. * config/frv/frv.mt (TDEPFILES): Add frv-linux-tdep.o.
106 lines
3.5 KiB
C
106 lines
3.5 KiB
C
/* Architecture-dependent code for the Fujitsu FR-V, for GDB, the GNU Debugger.
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Copyright 2004 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Enumerate the possible ABIs for FR-V. */
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enum frv_abi
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{
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FRV_ABI_EABI,
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FRV_ABI_FDPIC
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};
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/* Register numbers. The order in which these appear define the
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remote protocol, so take care in changing them. */
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enum {
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/* Register numbers 0 -- 63 are always reserved for general-purpose
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registers. The chip at hand may have less. */
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first_gpr_regnum = 0,
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sp_regnum = 1,
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fp_regnum = 2,
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struct_return_regnum = 3,
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last_gpr_regnum = 63,
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/* Register numbers 64 -- 127 are always reserved for floating-point
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registers. The chip at hand may have less. */
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first_fpr_regnum = 64,
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last_fpr_regnum = 127,
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/* The PC register. */
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pc_regnum = 128,
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/* Register numbers 129 on up are always reserved for special-purpose
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registers. */
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first_spr_regnum = 129,
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psr_regnum = 129,
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ccr_regnum = 130,
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cccr_regnum = 131,
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fdpic_loadmap_exec_regnum = 132,
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fdpic_loadmap_interp_regnum = 133,
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tbr_regnum = 135,
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brr_regnum = 136,
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dbar0_regnum = 137,
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dbar1_regnum = 138,
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dbar2_regnum = 139,
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dbar3_regnum = 140,
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scr0_regnum = 141,
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scr1_regnum = 142,
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scr2_regnum = 143,
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scr3_regnum = 144,
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lr_regnum = 145,
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lcr_regnum = 146,
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iacc0h_regnum = 147,
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iacc0l_regnum = 148,
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last_spr_regnum = 148,
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/* The total number of registers we know exist. */
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frv_num_regs = last_spr_regnum + 1,
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/* Pseudo registers */
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first_pseudo_regnum = frv_num_regs,
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/* iacc0 - the 64-bit concatenation of iacc0h and iacc0l. */
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iacc0_regnum = first_pseudo_regnum + 0,
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last_pseudo_regnum = iacc0_regnum,
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frv_num_pseudo_regs = last_pseudo_regnum - first_pseudo_regnum + 1,
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};
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/* Return the FR-V ABI associated with GDBARCH. */
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enum frv_abi frv_abi (struct gdbarch *gdbarch);
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/* Associate a sigcontext address fetcher with GDBARCH. */
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void frv_set_sigcontext_reg_addr (struct gdbarch *gdbarch,
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CORE_ADDR (*sigcontext_reg_addr)
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(struct frame_info *, int, CORE_ADDR *));
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/* Fetch the interpreter and executable loadmap addresses (for shared
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library support) for the FDPIC ABI. Return 0 if successful, -1 if
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not. (E.g, -1 will be returned if the ABI isn't the FDPIC ABI.) */
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int frv_fdpic_loadmap_addresses (struct gdbarch *gdbarch,
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CORE_ADDR *interp_addr, CORE_ADDR *exec_addr);
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/* Given a function entry point, find and return the GOT address for the
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containing load module. */
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CORE_ADDR frv_fdpic_find_global_pointer (CORE_ADDR addr);
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/* Given a function entry point, find and return the canonical descriptor
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for that function, if one exists. If no canonical descriptor could
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be found, return 0. */
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CORE_ADDR frv_fdpic_find_canonical_descriptor (CORE_ADDR entry_point);
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