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sparc: kernel needs to be position independant

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Change-Id: Id3da074c1c02dfc5bdedb8e1d0d5c2130c978325
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3582
Reviewed-by: waddlesplash <[email protected]>
This commit is contained in:
PulkoMandy
2021-01-01 00:45:13 +00:00
committed by waddlesplash
parent c40ab52437
commit c99c0d9d5a
1 changed files with 19 additions and 6 deletions
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build/jam/ArchitectureRules
+19 -6
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@@ -410,6 +410,12 @@ rule KernelArchitectureSetup architecture
HAIKU_KERNEL_ADDON_LINKFLAGS += -z max-page-size=0x1000 ; HAIKU_KERNEL_ADDON_LINKFLAGS += -z max-page-size=0x1000 ;
HAIKU_KERNEL_PIC_CCFLAGS = -fno-pic ; HAIKU_KERNEL_PIC_CCFLAGS = -fno-pic ;
case m68k :
# We don't want to have to handle emulating missing FPU opcodes for
# 040 and 060 in the kernel.
HAIKU_KERNEL_CCFLAGS += -m68020-60 ;
HAIKU_KERNEL_C++FLAGS += -m68020-60 ;
case ppc : case ppc :
# Build a position independent PPC kernel. We need to be able to # Build a position independent PPC kernel. We need to be able to
# relocate the kernel, since the virtual address space layout at # relocate the kernel, since the virtual address space layout at
@@ -417,18 +423,25 @@ rule KernelArchitectureSetup architecture
HAIKU_KERNEL_PIC_CCFLAGS = -fPIE ; HAIKU_KERNEL_PIC_CCFLAGS = -fPIE ;
HAIKU_KERNEL_PIC_LINKFLAGS = -shared -fPIE ; HAIKU_KERNEL_PIC_LINKFLAGS = -shared -fPIE ;
case m68k :
# We don't want to have to handle emulating missing FPU opcodes for
# 040 and 060 in the kernel.
HAIKU_KERNEL_CCFLAGS += -m68020-60 ;
HAIKU_KERNEL_C++FLAGS += -m68020-60 ;
case riscv64 : case riscv64 :
# Kernel lives within any single 2 GiB address space. # Kernel lives within any single 2 GiB address space.
# Default is medlow (-2GiB / +2GiB) # Default is medlow (-2GiB / +2GiB)
HAIKU_KERNEL_CCFLAGS += -mcmodel=medany ; HAIKU_KERNEL_CCFLAGS += -mcmodel=medany ;
HAIKU_KERNEL_C++FLAGS += -mcmodel=medany ; HAIKU_KERNEL_C++FLAGS += -mcmodel=medany ;
case sparc :
# The medlow code model is enough (64-bit addresses, programs must
# be linked in the low 32 bits of memory. Programs can be
# statically or dynamically linked.)
HAIKU_KERNEL_CCFLAGS += -mcmodel=medlow ;
HAIKU_KERNEL_C++FLAGS += -mcmodel=medlow ;
# Unfortunately it's not easy to make the kernel be
# position-independant, on sparc, that requires relocation support
# in the ELF loader to fill in the plt section.
HAIKU_KERNEL_PIC_CCFLAGS = -fPIE ;
HAIKU_KERNEL_PIC_LINKFLAGS = -shared -fPIE ;
case x86 : case x86 :
HAIKU_KERNEL_PIC_CCFLAGS = -fno-pic ; HAIKU_KERNEL_PIC_CCFLAGS = -fno-pic ;
HAIKU_KERNEL_CCFLAGS += -march=pentium ; HAIKU_KERNEL_CCFLAGS += -march=pentium ;