arch, include, soc: Use common stdint.h

There are only minimal differences between the architecture specific
stdint.h implementations, so let's tidy them up and merge them together
into a single file. In particular,

- Use 'unsigned long' for uintptr_t. This was already the case for x86
  and riscv, while arm and mips used 'unsigned int', and arm64 and ppc64
  used 'unsigned long long'. This change allows using a single integer
  type for uintptr_t across all architectures, and brings it into
  consistency with the rest of the code base, which generally uses
  'unsigned long' for memory addresses anyway. This change required
  fixing several assumptions about integer types in the arm code.
- Use _Bool as the boolean type. This is a specialized boolean type that
  was introduced in C99, and is preferrable over hacking booleans
  using integers. romcc sadly does not support _Bool, so for that we
  stick with the old uint8_t.
- Drop the least and fast integer types. They aren't used
  anywhere in the code base and are an unnecessary maintenance burden.
  Using the standard fixed width types is essentially always better anyway.
- Drop the UINT64_C() macro. It also isn't used anywhere and doesn't
  provide anything that a (uint64_t) cast doesn't.
- Implement the rest of the MIN and MAX numerical limits.
- Use static assertions to check that the integer widths are correct.

Change-Id: I6b52f37793151041b7bdee9ec3708bfad69617b2
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34075
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

1 files changed, 0 insertions, 79 deletions

diff --git a/src/arch/riscv/include/stdint.h b/src/arch/riscv/include/stdint.h
deleted file mode 100644
index 76f0d1b778..0000000000
--- a/src/arch/riscv/include/stdint.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program 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 General Public License for more details.
- */
-
-#ifndef RISCV_STDINT_H
-#define RISCV_STDINT_H
-
-/* Exact integral types */
-typedef unsigned char      uint8_t;
-typedef signed char        int8_t;
-
-typedef unsigned short     uint16_t;
-typedef signed short       int16_t;
-
-typedef unsigned int       uint32_t;
-typedef signed int         int32_t;
-
-typedef unsigned long long uint64_t;
-typedef signed long long   int64_t;
-
-/* Small types */
-typedef unsigned char      uint_least8_t;
-typedef signed char        int_least8_t;
-
-typedef unsigned short     uint_least16_t;
-typedef signed short       int_least16_t;
-
-typedef unsigned int       uint_least32_t;
-typedef signed int         int_least32_t;
-
-typedef unsigned long long uint_least64_t;
-typedef signed long long   int_least64_t;
-
-/* Fast Types */
-typedef unsigned char      uint_fast8_t;
-typedef signed char        int_fast8_t;
-
-typedef unsigned int       uint_fast16_t;
-typedef signed int         int_fast16_t;
-
-typedef unsigned int       uint_fast32_t;
-typedef signed int         int_fast32_t;
-
-typedef unsigned long long uint_fast64_t;
-typedef signed long long   int_fast64_t;
-
-typedef long long int      intmax_t;
-typedef unsigned long long uintmax_t;
-
-typedef uint8_t u8;
-typedef uint16_t u16;
-typedef uint32_t u32;
-typedef uint64_t u64;
-typedef int8_t s8;
-typedef int16_t s16;
-typedef int32_t s32;
-typedef int64_t s64;
-
-typedef uint8_t bool;
-#define true	1
-#define false	0
-
-/* Types for `void *' pointers.  */
-typedef long intptr_t;
-typedef unsigned long uintptr_t;
-
-/* FIXME: This is used in some print code and may be removed in the future. */
-#define PRIu64  "llu"
-
-#endif /* RISCV_STDINT_H */