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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 19:01:57 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-12-27 19:01:57 +0000 |
commit | cab56836b146bc129f1ad43f0393d95a9deca63a (patch) | |
tree | 4f4e655319bbac78fca170da05275c127429b460 /sysdeps/riscv/sys | |
parent | 04ac1241a4cd004872282c2c82ec37fa33925292 (diff) | |
parent | 82dd75a7f436a19047325d62182590c9f9e23a78 (diff) |
Merge branch 't/tls' into refs/top-bases/t/tls-threadvar
Diffstat (limited to 'sysdeps/riscv/sys')
-rw-r--r-- | sysdeps/riscv/sys/asm.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/sysdeps/riscv/sys/asm.h b/sysdeps/riscv/sys/asm.h new file mode 100644 index 0000000000..ddb84b683b --- /dev/null +++ b/sysdeps/riscv/sys/asm.h @@ -0,0 +1,63 @@ +/* Miscellaneous macros. + Copyright (C) 2000-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SYS_ASM_H +#define _SYS_ASM_H + +/* Macros to handle different pointer/register sizes for 32/64-bit code. */ +#if __riscv_xlen == 64 +# define PTRLOG 3 +# define SZREG 8 +# define REG_S sd +# define REG_L ld +#elif __riscv_xlen == 32 +# error "rv32i-based targets are not supported" +#else +# error __riscv_xlen must equal 32 or 64 +#endif + +#if !defined __riscv_float_abi_soft +/* For ABI uniformity, reserve 8 bytes for floats, even if double-precision + floating-point is not supported in hardware. */ +# if defined __riscv_float_abi_double +# define FREG_L fld +# define FREG_S fsd +# define SZFREG 8 +# else +# error unsupported FLEN +# endif +#endif + +/* Declare leaf routine. */ +#define LEAF(symbol) \ + .globl symbol; \ + .align 2; \ + .type symbol,@function; \ +symbol: \ + cfi_startproc; + +/* Mark end of function. */ +#undef END +#define END(function) \ + cfi_endproc; \ + .size function,.-function + +/* Stack alignment. */ +#define ALMASK ~15 + +#endif /* sys/asm.h */ |