From 01d9fe4d9f7cce7a6dbaece0e2e405a2e3279244 Mon Sep 17 00:00:00 2001 From: Stefan O'Rear Date: Thu, 3 Sep 2020 05:40:29 -0400 Subject: riscv32: add arch headers These are mostly copied from riscv64. _Addr and _Reg had to become int to match compiler-controlled parts of the ABI (result type of sizeof, etc.). There is no kernel stat struct; the userspace stat matches glibc in the sizes and offsets of all fields (including glibc's __dev_t __pad1). The jump buffer is 12 words larger to account for 12 saved double-precision floats; additionally it should be 64-bit aligned to save doubles. The syscall list was significantly revised by deleting all time32 and pre-statx syscalls, and renaming several syscalls that have different names depending on __BITS_PER_LONG, notably mmap2 and _llseek. futex was added as an alias to futex_time64 since it is widely used by software which does not pass time arguments. --- arch/riscv32/bits/fenv.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 arch/riscv32/bits/fenv.h (limited to 'arch/riscv32/bits/fenv.h') diff --git a/arch/riscv32/bits/fenv.h b/arch/riscv32/bits/fenv.h new file mode 100644 index 00000000..806ec40f --- /dev/null +++ b/arch/riscv32/bits/fenv.h @@ -0,0 +1,17 @@ +#define FE_INVALID 16 +#define FE_DIVBYZERO 8 +#define FE_OVERFLOW 4 +#define FE_UNDERFLOW 2 +#define FE_INEXACT 1 + +#define FE_ALL_EXCEPT 31 + +#define FE_TONEAREST 0 +#define FE_DOWNWARD 2 +#define FE_UPWARD 3 +#define FE_TOWARDZERO 1 + +typedef unsigned int fexcept_t; +typedef unsigned int fenv_t; + +#define FE_DFL_ENV ((const fenv_t *) -1) -- cgit 1.4.1