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75 lines
2.4 KiB
75 lines
2.4 KiB
/* RISC-V ABI-specified defaults for DWARF CFI. |
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This file is part of elfutils. |
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This file is free software; you can redistribute it and/or modify |
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it under the terms of either |
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* the GNU Lesser General Public License as published by the Free |
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Software Foundation; either version 3 of the License, or (at |
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your option) any later version |
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or |
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* the GNU General Public License as published by the Free |
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Software Foundation; either version 2 of the License, or (at |
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your option) any later version |
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or both in parallel, as here. |
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elfutils is distributed in the hope that it will be useful, but |
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WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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General Public License for more details. |
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You should have received copies of the GNU General Public License and |
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the GNU Lesser General Public License along with this program. If |
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not, see <http://www.gnu.org/licenses/>. */ |
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#ifdef HAVE_CONFIG_H |
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# include <config.h> |
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#endif |
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#include <dwarf.h> |
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#define BACKEND aarch64_ |
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#include "libebl_CPU.h" |
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int |
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riscv_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info) |
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{ |
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static const uint8_t abi_cfi[] = |
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{ |
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/* The initial Canonical Frame Address is the value of the |
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Stack Pointer (r2) as setup in the previous frame. */ |
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DW_CFA_def_cfa, ULEB128_7 (2), ULEB128_7 (0), |
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/* The Stack Pointer (r2) is restored from CFA address by default. */ |
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DW_CFA_val_offset, ULEB128_7 (2), ULEB128_7 (0), |
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#define SV(n) DW_CFA_same_value, ULEB128_7 (n) |
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/* The return address register contains the return address setup by |
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caller. */ |
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SV (1), |
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/* Callee-saved registers s0-s11, fs0-fs11. */ |
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SV(8), SV (9), SV (18), SV (19), SV (20), SV (21), |
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SV (22), SV (23), SV (24), SV (25), SV (26), SV (27), |
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SV (40), SV (41), SV (50), SV (51), SV (52), SV (53), |
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SV (54), SV (55), SV (56), SV (57), SV (58), SV (59), |
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#undef SV |
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/* XXX Note: registers intentionally unused by the program, |
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for example as a consequence of the procedure call standard |
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should be initialized as if by DW_CFA_same_value. */ |
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}; |
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abi_info->initial_instructions = abi_cfi; |
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abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi]; |
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abi_info->data_alignment_factor = -4; |
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abi_info->return_address_register = 1; /* ra. */ |
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return 0; |
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}
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