diff options
| -rw-r--r-- | TODO | 5 | ||||
| -rw-r--r-- | scripts/makefile | 22 | ||||
| -rw-r--r-- | src/bits.c | 15 |
3 files changed, 29 insertions, 13 deletions
@@ -52,6 +52,11 @@ associated program. Easy. (started) be visible from cur_tcb() when in an RPC? should I use some kind of effective tid instead of cur_tcb()?) + Export VM flags to userspace, separate header or something? ++ Get core count? It's technically speaking available from the fdt but could be +limited by the NR_CPUS macro, so it might be a good idea to export as a CONF_* ++ The node subsystem might benefit from larger-than-base-page sizes, for example + the RISC-V V extension allows up to 262 144 bytes of register space (though it + seems unlikely that anyone actually uses that many but still) !!! FUTURE: + Cache locality? diff --git a/scripts/makefile b/scripts/makefile index aa0bcac..da0afa0 100644 --- a/scripts/makefile +++ b/scripts/makefile @@ -1,33 +1,29 @@ # this could be done better -RELEASE ?= 0 -OPTFLAGS != [ "$(RELEASE)" != "0" ] \ +CFLAGS ?= + +OPTFLAGS != [ "$(RELEASE)" -a "$(RELEASE)" != "0" ] \ && echo "-O2 -flto=auto" \ || echo "-O0" -DEBUG ?= 1 DEBUGFLAGS != [ "$(DEBUG)" != "0" ] \ && echo "-DDEBUG=1" \ || echo "-DNDEBUG=1" -GENERIC_UBOOT ?= 0 -UBOOTFLAGS != [ "$(GENERIC_UBOOT)" != "0" ] \ +UBOOTFLAGS != [ "$(GENERIC_UBOOT)" -a "$(GENERIC_UBOOT)" != "0" ] \ && echo "-DGENERIC_UBOOT=1" \ || echo -ASSERT ?= 1 ASSERTFLAGS != [ "$(ASSERT)" != "0" ] \ && echo "-DASSERT=1" \ || echo +USE_LLVM != [ "$(LLVM)" -a "$(LLVM)" != "0" ] \ + && echo "1" + DEPFLAGS = -MT $@ -MMD -MP -MF $@.d LINTFLAGS = -fsyntax-only PREPROCESS = -E -LLVM ?= 0 -LDFLAGS != [ "$(LLVM)" = "0" ] \ - && echo -static-libgcc -lgcc \ - || echo - BUILD = build ARCH_KERN_BUILD = $(BUILD)/kernel/arch/$(ARCH) ARCH_SOURCE = arch/$(ARCH) @@ -38,11 +34,11 @@ all: kmi.bin ARCH ?= riscv64 CROSS_COMPILE ?= $(ARCH)-unknown-elf- -OBJCOPY != [ "$(LLVM)" != "0" ] \ +OBJCOPY != [ "$(USE_LLVM)" ] \ && echo llvm-objcopy \ || echo $(CROSS_COMPILE)objcopy -COMPILER != [ "$(LLVM)" != "0" ] \ +COMPILER != [ "$(USE_LLVM)" ] \ && echo clang --target="$(CROSS_COMPILE)" \ || echo $(CROSS_COMPILE)gcc @@ -17,6 +17,11 @@ __weak uint16_t __bswap16(const uint16_t u) return (u & 0xff00) >> 8 | (u & 0x00ff) << 8; } +uint16_t __bswaphi2(uint16_t u) +{ + return __bswap16(u); +} + #undef __bswap32 __weak uint32_t __bswap32(const uint32_t u) { @@ -24,6 +29,11 @@ __weak uint32_t __bswap32(const uint32_t u) (u & 0x0000ff00) << 8 | (u & 0x000000ff) << 24; } +uint32_t __bswapsi2(uint32_t u) +{ + return __bswap32(u); +} + #undef __bswap64 __weak uint64_t __bswap64(const uint64_t u) { @@ -37,6 +47,11 @@ __weak uint64_t __bswap64(const uint64_t u) (u & 0x00000000000000ffULL) << 56; } +uint64_t __bswapdi2(uint64_t u) +{ + return __bswap64(u); +} + #undef ffs __weak int ffs(int v) { |