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Made it possible to build kernel modules for x86_64.

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Added the necessary build flags for modules, and added a module (dpc)
to the floppy image for x86_64 builds for testing purposes. The module
gets loaded correctly and its code runs without issue. Only non-trivial
addition is the different method for generating kernel.so, this is
explained in the kernel Jamfile.
This commit is contained in:
Alex Smith
2012-07-19 17:53:46 +01:00
parent 0cbce9aa47
commit 385d69fc01
5 changed files with 79 additions and 37 deletions
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build/jam/BuildSetup
+12 -8
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@@ -356,6 +356,7 @@ if $(HAIKU_GCC_VERSION[1]) >= 4 {
HAIKU_KERNEL_PIC_CCFLAGS = -fno-pic ;
HAIKU_KERNEL_PIC_LINKFLAGS = ;
HAIKU_KERNEL_ADDON_LINKFLAGS = ;
switch $(HAIKU_ARCH) {
case ppc :
@@ -389,13 +390,16 @@ switch $(HAIKU_ARCH) {
case x86_64 :
{
# Kernel lives in the top 2GB of the address space, use kernel code
# model. Also disable the red zone, which cannot be used in kernel
# code due to interrupts.
HAIKU_KERNEL_CCFLAGS += -mcmodel=kernel -mno-red-zone
-fno-omit-frame-pointer ;
HAIKU_KERNEL_C++FLAGS += -mcmodel=kernel -mno-red-zone
-fno-omit-frame-pointer ;
# model.
HAIKU_KERNEL_PIC_CCFLAGS += -mcmodel=kernel ;
# Disable the red zone, which cannot be used in kernel code due to
# interrupts, and always enable the frame pointer so stack traces are
# correct.
HAIKU_KERNEL_CCFLAGS += -mno-red-zone -fno-omit-frame-pointer ;
HAIKU_KERNEL_C++FLAGS += -mno-red-zone -fno-omit-frame-pointer ;
HAIKU_KERNEL_PIC_LINKFLAGS += -z max-page-size=0x1000 ;
HAIKU_KERNEL_ADDON_LINKFLAGS += -z max-page-size=0x1000 ;
# Bootloader is 32-bit.
HAIKU_BOOT_LINKFLAGS += -m elf_i386_haiku ;
@@ -984,7 +988,7 @@ if $(TARGET_PLATFORM) != haiku {
local buildVars =
ARCH CPU GCC_VERSION KERNEL_ARCH
AR CC C++ LD OBJCOPY RANLIB
AR CC C++ LD OBJCOPY RANLIB ELFEDIT
INCLUDES_SEPARATOR LOCAL_INCLUDES_OPTION SYSTEM_INCLUDES_OPTION
@@ -993,7 +997,7 @@ local buildVars =
KERNEL_DEFINES
KERNEL_CCFLAGS KERNEL_C++FLAGS
KERNEL_PIC_CCFLAGS KERNEL_PIC_LINKFLAGS
KERNEL_PIC_CCFLAGS KERNEL_PIC_LINKFLAGS KERNEL_ADDON_LINKFLAGS
BOOT_CCFLAGS BOOT_C++FLAGS BOOT_LINKFLAGS
WARNING_CCFLAGS WARNING_C++FLAGS