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author | Alistair Francis <alistair.francis@wdc.com> | 2020-02-10 10:36:21 -0800 |
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committer | Alistair Francis <alistair.francis@wdc.com> | 2020-08-27 08:17:42 -0700 |
commit | 5b6113d62efabb123db433b14adddd4a5fb6b7ec (patch) | |
tree | 1959bde3e74c6e491bbce89f0f8e1806647c9225 /sysdeps/unix | |
parent | 07598d76006faec6c60a9d86bda44dcb81b3a743 (diff) | |
download | glibc-5b6113d62efabb123db433b14adddd4a5fb6b7ec.tar.gz glibc-5b6113d62efabb123db433b14adddd4a5fb6b7ec.tar.xz glibc-5b6113d62efabb123db433b14adddd4a5fb6b7ec.zip |
RISC-V: Support the 32-bit ABI implementation
This patch adds the ABI implementation for 32-bit RISC-V. It contains the Linux-specific and RISC-V architecture code. Reviewed-by: Maciej W. Rozycki <macro@wdc.com>
Diffstat (limited to 'sysdeps/unix')
-rw-r--r-- | sysdeps/unix/sysv/linux/riscv/jmp_buf-macros.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/riscv/jmp_buf-macros.h b/sysdeps/unix/sysv/linux/riscv/jmp_buf-macros.h new file mode 100644 index 0000000000..234b979a8c --- /dev/null +++ b/sysdeps/unix/sysv/linux/riscv/jmp_buf-macros.h @@ -0,0 +1,55 @@ +/* The jump buffer constants for RISC-V. + Copyright (C) 2020 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 + <https://www.gnu.org/licenses/>. */ + +/* Produced by this program: + + #include <stdio.h> + #include <unistd.h> + #include <setjmp.h> + #include <stddef.h> + + int main (int argc, char **argv) + { + printf ("#define JMP_BUF_SIZE %d\n", sizeof (jmp_buf)); + printf ("#define JMP_BUF_ALIGN %d\n", __alignof__ (jmp_buf)); + printf ("#define SIGJMP_BUF_SIZE %d\n", sizeof (sigjmp_buf)); + printf ("#define SIGJMP_BUF_ALIGN %d\n", __alignof__ (sigjmp_buf)); + printf ("#define MASK_WAS_SAVED_OFFSET %d\n", + offsetof (struct __jmp_buf_tag, __mask_was_saved)); + printf ("#define SAVED_MASK_OFFSET %d\n", + offsetof (struct __jmp_buf_tag, __saved_mask)); + } */ + +#if defined __riscv_float_abi_soft +# define JMP_BUF_SIZE 188 +# define JMP_BUF_ALIGN 4 +# define SIGJMP_BUF_SIZE 188 +# define SIGJMP_BUF_ALIGN 4 +# define MASK_WAS_SAVED_OFFSET 56 +# define SAVED_MASK_OFFSET 60 +#elif defined __riscv_float_abi_double +# define JMP_BUF_SIZE 288 +# define JMP_BUF_ALIGN 8 +# define SIGJMP_BUF_SIZE 288 +# define SIGJMP_BUF_ALIGN 8 +# define MASK_WAS_SAVED_OFFSET 152 +# define SAVED_MASK_OFFSET 156 +#else +# error "Unknown RISC-V floating-point ABI" +#endif |