diff options
| author | Jessica Clarke <jrtc27@jrtc27.com> | 2021-07-11 03:28:24 +0100 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2021-07-11 21:01:44 +0530 |
| commit | 17729d44daf879e015950b0e9636afceefea0a59 (patch) | |
| tree | b367007dadc7d1c2cf3de4250addec137dc5414a /lib/utils/libquad/include | |
| parent | 2942777425516f7b31181fbaecc5485263dfcb01 (diff) | |
lib: utils: Drop dependency on libgcc by importing part of FreeBSD's libquad
We only need libgcc for 64-bit division on RV32. Whilst GCC toolchains
bundle libgcc, Clang toolchains tend not to ship libclang_rt.builtins
given every compiler is a cross-compiler for every target and so you
would need a silly number of builds of it, with only the native library
available; only vendor-provided Clang toolchains specifically for bare
metal cross-compiling are likely to provide it.
Thus, import part of FreeBSD's implementation of the division support
functions needed and stop linking against libgcc.
Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Tested-by: Anup Patel <anup.patel@wdc.com>
Diffstat (limited to 'lib/utils/libquad/include')
| -rw-r--r-- | lib/utils/libquad/include/limits.h | 12 | ||||
| -rw-r--r-- | lib/utils/libquad/include/sys/cdefs.h | 12 | ||||
| -rw-r--r-- | lib/utils/libquad/include/sys/types.h | 25 |
3 files changed, 49 insertions, 0 deletions
diff --git a/lib/utils/libquad/include/limits.h b/lib/utils/libquad/include/limits.h new file mode 100644 index 0000000..9c69d27 --- /dev/null +++ b/lib/utils/libquad/include/limits.h @@ -0,0 +1,12 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2021 Jessica Clarke <jrtc27@jrtc27.com> + */ + +#ifndef __LIMITS_H__ +#define __LIMITS_H__ + +#define CHAR_BIT 8 + +#endif diff --git a/lib/utils/libquad/include/sys/cdefs.h b/lib/utils/libquad/include/sys/cdefs.h new file mode 100644 index 0000000..e8d6faa --- /dev/null +++ b/lib/utils/libquad/include/sys/cdefs.h @@ -0,0 +1,12 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2021 Jessica Clarke <jrtc27@jrtc27.com> + */ + +#ifndef __SYS_CDEFS_H__ +#define __SYS_CDEFS_H__ + +#define __FBSDID(s) struct __hack + +#endif diff --git a/lib/utils/libquad/include/sys/types.h b/lib/utils/libquad/include/sys/types.h new file mode 100644 index 0000000..e372437 --- /dev/null +++ b/lib/utils/libquad/include/sys/types.h @@ -0,0 +1,25 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2021 Jessica Clarke <jrtc27@jrtc27.com> + */ + +#ifndef __SYS_TYPES_H__ +#define __SYS_TYPES_H__ + +#include <sbi/sbi_types.h> + +typedef unsigned long u_long; + +typedef int64_t quad_t; +typedef uint64_t u_quad_t; + +#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +#define _QUAD_LOWWORD 1 +#define _QUAD_HIGHWORD 0 +#else +#define _QUAD_LOWWORD 0 +#define _QUAD_HIGHWORD 1 +#endif + +#endif |