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635a3d87de
This target triple was weird on multiple levels: * The `ilp32` ABI is the soft float ABI. This is not the main ABI we want to support on RISC-V; rather, we want `ilp32d`. * `gnuilp32` is a bespoke tag that was introduced in Zig. The rest of the world just uses `gnu` for RISC-V target triples. * `gnu_ilp32` is already the name of an ILP32 ABI used on AArch64. `gnuilp32` is too easy to confuse with this. * We don't use this convention for `riscv64-linux-gnu`. * Supporting all RISC-V ABIs with this convention will result in combinatorial explosion; see #20690.
66 lines
No EOL
1.8 KiB
C
Vendored
66 lines
No EOL
1.8 KiB
C
Vendored
/* Miscellaneous macros.
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Copyright (C) 2000-2024 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _SYS_ASM_H
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#define _SYS_ASM_H
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/* Macros to handle different pointer/register sizes for 32/64-bit code. */
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#if __riscv_xlen == 64
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# define PTRLOG 3
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# define SZREG 8
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# define REG_S sd
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# define REG_L ld
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#elif __riscv_xlen == 32
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# define PTRLOG 2
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# define SZREG 4
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# define REG_S sw
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# define REG_L lw
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#else
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# error __riscv_xlen must equal 32 or 64
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#endif
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#if !defined __riscv_float_abi_soft
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/* For ABI uniformity, reserve 8 bytes for floats, even if double-precision
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floating-point is not supported in hardware. */
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# if defined __riscv_float_abi_double
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# define FREG_L fld
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# define FREG_S fsd
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# define SZFREG 8
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# else
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# error unsupported FLEN
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# endif
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#endif
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/* Declare leaf routine. */
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#define LEAF(symbol) \
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.globl symbol; \
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.align 2; \
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.type symbol,@function; \
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symbol: \
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cfi_startproc;
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/* Mark end of function. */
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#undef END
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#define END(function) \
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cfi_endproc; \
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.size function,.-function
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/* Stack alignment. */
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#define ALMASK ~15
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#endif /* sys/asm.h */ |