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build: Add initial ARM64 target.

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It will probably be just stubs for the significant future, but,
here it is anyway.

Regarding the naming: Yes, the official name is "aarch64." However,
Linux, FreeBSD, and Zircon all call it "arm64", and so we will do the same.

I've configured it initially to be a Clang-only port, making no
changes to GCC buildtools whatsoever here. We'll see if that sticks,
however.
This commit is contained in:
Augustin Cavalier 2018-08-02 19:48:29 -04:00
parent 9a90ee3a38
commit fb4cc98472
4 changed files with 13 additions and 4 deletions
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5
configure vendored
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@ -32,7 +32,7 @@ options:
directory under "cross-tools". The HAIKU_* tools
variables will be set accordingly.
<arch> specifies the target architecture, either
"x86_gcc2", "x86", "x86_64", "ppc", "m68k", "arm"
"x86_gcc2", "x86", "x86_64", "ppc", "m68k", "arm", "arm64"
This option and --cross-tools-prefix can be
specified multiple times. The first cross tools
specify the primary tools, the subsequent ones the
@ -254,6 +254,7 @@ standard_gcc_settings()
# determine architecture from machine triple
case $gccMachine in
arm-*) targetCpu=arm;;
arm64-*) targetCpu=arm64;;
i?86-*) targetCpu=x86;;
m68k-*) targetCpu=m68k;;
powerpc-*) targetCpu=ppc;;
@ -599,6 +600,7 @@ export haikuRequiredLegacyGCCVersion
# version of legacy gcc required to build haiku
supportedTargetArchs="
arm
arm64
m68k
ppc
x86
@ -706,6 +708,7 @@ while [ $# -gt 0 ] ; do
x86_64) targetMachine=x86_64-unknown-haiku;;
ppc) targetMachine=powerpc-apple-haiku;;
arm) targetMachine=arm-unknown-haiku;;
arm64) targetMachine=arm64-unknown-haiku;;
*)
echo "Unsupported target architecture: $2" >&2
exit 1

5
headers/config/HaikuConfig.h
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@ -56,6 +56,11 @@
# define __HAIKU_ARCH_ABI "armeb"
# define __HAIKU_ARCH_ARM 1
# define __HAIKU_BIG_ENDIAN 1
#elif defined(__arm64__)
# define __HAIKU_ARCH arm64
# define __HAIKU_ARCH_ABI "arm64"
# define __HAIKU_ARCH_ARM64 1
# define __HAIKU_ARCH_BITS 64
#else
# error Unsupported architecture!
#endif

3
headers/os/kernel/elf.h
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@ -186,7 +186,8 @@ typedef struct {
#define EM_BLACKFIN 106 /* Analog Devices Blackfin (DSP) processor */
#define EM_ARCA 109 /* Arca RISC Microprocessor */
#define EM_VIDCORE3 137 /* Broadcom VideoCore III */
#define EM_AARCH64 183 /* ARM 64 bit */
#define EM_ARM64 183 /* ARM 64 bit */
#define EM_AARCH64 EM_ARM64
#define EM_AVR32 185 /* AVR-32 */
#define EM_STM8 186 /* ST STM8S */
#define EM_CUDA 190 /* Nvidia CUDA */

4
src/system/runtime_loader/runtime_loader.cpp
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@ -667,8 +667,8 @@ get_executable_architecture(int fd, const char** _architecture)
case EM_ARM:
architecture = "arm";
break;
case EM_AARCH64:
architecture = "aarch64";
case EM_ARM64:
architecture = "arm64";
break;
case EM_X86_64:
architecture = "x86_64";