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| author | Kimplul <kimi.h.kuparinen@gmail.com> | 2022-05-05 23:19:42 +0300 |
|---|---|---|
| committer | Kimplul <kimi.h.kuparinen@gmail.com> | 2022-05-05 23:19:42 +0300 |
| commit | 5fb1af3ab12880331fb1e2150aa23b1278e60ddd (patch) | |
| tree | 3e905ee027369f01611edbc1b1a1a00e9a30dc41 /arch | |
| parent | 9273c16434316a8ab60dc78ee65a03e68031203a (diff) | |
| download | kmi-5fb1af3ab12880331fb1e2150aa23b1278e60ddd.tar.gz kmi-5fb1af3ab12880331fb1e2150aa23b1278e60ddd.zip | |
riscv64 boots with clang (sort of)
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv64/gen/asm-offsets.c | 2 | ||||
| -rw-r--r-- | arch/riscv64/gen/source.mk | 4 | ||||
| -rw-r--r-- | arch/riscv64/source.mk | 18 |
3 files changed, 12 insertions, 12 deletions
diff --git a/arch/riscv64/gen/asm-offsets.c b/arch/riscv64/gen/asm-offsets.c index d78e0ec..6920245 100644 --- a/arch/riscv64/gen/asm-offsets.c +++ b/arch/riscv64/gen/asm-offsets.c @@ -3,7 +3,7 @@ /* largely based on linux */ #define DEFINE(sym, val) \ - __asm__ volatile("\n-> " #sym " %0 " #val "\n" ::"i"(val)) + __asm__ volatile("\n#-> " #sym " %0 " #val "\n" ::"i"(val)) #define OFFSETOF(m, s) DEFINE(offsetof_##m, offsetof(s, m)) #define SIZEOF(n, s) DEFINE(sizeof_##n, sizeof(s)) diff --git a/arch/riscv64/gen/source.mk b/arch/riscv64/gen/source.mk index d291983..596255f 100644 --- a/arch/riscv64/gen/source.mk +++ b/arch/riscv64/gen/source.mk @@ -1,8 +1,8 @@ $(ARCH_SOURCE)/include/gen/asm-offsets.h: $(ARCH_SOURCE)/gen/asm-offsets.c echo "#ifndef APOS_ASM_OFFSETS_H" > $@ echo "#define APOS_ASM_OFFSETS_H" >> $@ - $(COMPILER) $(INCLUDE_FLAGS) -S $< -o - |\ - awk '($$1 == "->") { print "#define " $$2 " " $$3 }' >> $@ + $(COMPILER) $(DEPFLAGS) $(INCLUDE_FLAGS) -S $< -o - |\ + awk '($$1 == "#->") { print "#define " $$2 " " $$3 }' >> $@ echo "#endif /* APOS_ASM_OFFSETS_H */" >> $@ CLEANUP += $(ARCH_SOURCE)/include/gen/* diff --git a/arch/riscv64/source.mk b/arch/riscv64/source.mk index 8c1dfcb..fcb7f69 100644 --- a/arch/riscv64/source.mk +++ b/arch/riscv64/source.mk @@ -3,17 +3,17 @@ KERNEL_SOURCES += $(KERNEL_LOCAL) INIT_SOURCES += $(ARCH_SOURCE)/init/*.[cS] # this doesn't work for rv32, but fine for now */ -CLEANUP_CMD := $(ARCH_SOURCE)/conf/rmimage.sh - ARCH_CFLAGS := -mcmodel=medany -ARCH_LDFLAGS := +ARCH_LDFLAGS := -fuse-ld=bfd + +# slightly hacky but bfd is currently the only compiler that correctly handles +# riscv relocations, but it doesn't recognise LLVM lto files, so if we're +# doing an LLVM compilation, remove lto support +DEBUGFLAGS != [ $(LLVM) ] && echo $(DEBUGFLAGS:-flto=) || echo $(DEBUGFLAGS) -# llvm compilation doesn't seem to work, either bfd reads the object files wrong -# and outputs incorrect symbols or lld handles relocations in a dumb way. Only -# GCC compiles the kernel correctly at the moment (on RISCV, at least). I'll -# look into this later, but for now I'll just use GCC. The code does _compile_ -# with clang, it just won't link. -#LINKFLAGS := -fuse-ld=bfd +# llvm-objcopy is buggy, use gnu tools instead +# christ, not much LLVM tooling available for RISCV :D +OBJCOPY := $(CROSS_COMPILE)-objcopy run: $(ARCH_SOURCE)/conf/mkimage.sh |