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kernel: add aarch64 architecture support

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Signed-off-by: EnderIce2 <enderice2@protonmail.com>
This commit is contained in:
EnderIce2
2025-01-10 17:26:26 +02:00
parent 07abdd9f6c
commit e6933acfb0
62 changed files with 1009 additions and 299 deletions
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78
Userspace/libc/include/fennix/syscalls.h
View File

@ -40,6 +40,15 @@ static inline scarg syscall0(scarg syscall)
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0");
__asm__ __volatile__("svc 0"
: "=r"(x0)
: "r"(x8)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif
@ -65,6 +74,15 @@ static inline scarg syscall1(scarg syscall, scarg arg1)
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0") = arg1;
__asm__ __volatile__("svc 0"
: "=r"(ret)
: "r"(x8), "0"(x0)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif
@ -91,6 +109,16 @@ static inline scarg syscall2(scarg syscall, scarg arg1, scarg arg2)
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0") = arg1;
register long x1 __asm__("x1") = arg2;
__asm__ __volatile__("svc 0"
: "=r"(ret)
: "r"(x8), "0"(x0), "r"(x1)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif
@ -118,6 +146,17 @@ static inline scarg syscall3(scarg syscall, scarg arg1, scarg arg2, scarg arg3)
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0") = arg1;
register long x1 __asm__("x1") = arg2;
register long x2 __asm__("x2") = arg3;
__asm__ __volatile__("svc 0"
: "=r"(ret)
: "r"(x8), "0"(x0), "r"(x1), "r"(x2)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif
@ -147,6 +186,18 @@ static inline scarg syscall4(scarg syscall, scarg arg1, scarg arg2, scarg arg3,
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0") = arg1;
register long x1 __asm__("x1") = arg2;
register long x2 __asm__("x2") = arg3;
register long x3 __asm__("x3") = arg4;
__asm__ __volatile__("svc 0"
: "=r"(ret)
: "r"(x8), "0"(x0), "r"(x1), "r"(x2), "r"(x3)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif
@ -178,6 +229,19 @@ static inline scarg syscall5(scarg syscall, scarg arg1, scarg arg2, scarg arg3,
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0") = arg1;
register long x1 __asm__("x1") = arg2;
register long x2 __asm__("x2") = arg3;
register long x3 __asm__("x3") = arg4;
register long x4 __asm__("x4") = arg5;
__asm__ __volatile__("svc 0"
: "=r"(ret)
: "r"(x8), "0"(x0), "r"(x1), "r"(x2), "r"(x3), "r"(x4)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif
@ -211,6 +275,20 @@ static inline scarg syscall6(scarg syscall, scarg arg1, scarg arg2, scarg arg3,
: "rcx", "r11", "memory");
#elif defined(__i386__)
#warning "i386 syscall wrapper not implemented"
#elif defined(__arm__)
#warning "arm syscall wrapper not implemented"
#elif defined(__aarch64__)
register long x8 __asm__("x8") = syscall;
register long x0 __asm__("x0") = arg1;
register long x1 __asm__("x1") = arg2;
register long x2 __asm__("x2") = arg3;
register long x3 __asm__("x3") = arg4;
register long x4 __asm__("x4") = arg5;
register long x5 __asm__("x5") = arg6;
__asm__ __volatile__("svc 0"
: "=r"(ret)
: "r"(x8), "0"(x0), "r"(x1), "r"(x2), "r"(x3), "r"(x4), "r"(x5)
: "memory", "cc");
#else
#error "Unsupported architecture"
#endif

16
Userspace/libc/interpreter/elf.h
View File

@ -182,6 +182,13 @@ enum RelocationTypes
R_X86_64_REX_GOTPCRELX = 42,
R_X86_64_NUM = 43,
R_AARCH64_NONE = 0,
R_AARCH64_COPY = 1024,
R_AARCH64_GLOB_DAT = 1025,
R_AARCH64_JUMP_SLOT = 1026,
R_AARCH64_RELATIVE = 1027,
R_AARCH64_TLS_DTPMOD64 = 1028,
#if defined(__x86_64__)
R_NONE = R_X86_64_NONE,
R_COPY = R_X86_64_COPY,
@ -200,6 +207,15 @@ enum RelocationTypes
R_DTPMOD64 = R_386_NONE,
R_DTPOFF64 = R_386_NONE,
R_TPOFF64 = R_386_NONE,
#elif defined(__aarch64__)
R_NONE = R_AARCH64_NONE,
R_COPY = R_AARCH64_COPY,
R_GLOB_DAT = R_AARCH64_GLOB_DAT,
R_JMP_SLOT = R_AARCH64_JUMP_SLOT,
R_RELATIVE = R_AARCH64_RELATIVE,
R_DTPMOD64 = R_AARCH64_TLS_DTPMOD64,
R_DTPOFF64 = R_AARCH64_NONE,
R_TPOFF64 = R_AARCH64_NONE,
#endif
};

6
Userspace/libc/interpreter/load.c
View File

@ -151,8 +151,8 @@ __attribute__((naked, used, no_stack_protector)) void _dl_runtime_resolve()
"jmp *%r11\n"); /* Jump to the return value */
#elif defined(__i386__)
#warning "i386 _dl_runtime_resolve not implemented"
#else
#error "Unsupported architecture"
#elif defined(__aarch64__)
#warning "aarch64 not implemented"
#endif
}
@ -817,6 +817,7 @@ int RelocateHelper(ElfInfo *Info, Elf_Rela *Rela, short IsRel, void **Relocated)
reloc = Info->BaseAddress;
break;
}
#if defined(__amd64__)
case R_DTPOFF64:
{
printf("dl: i don't know what to do with DTPOFF64\n");
@ -829,6 +830,7 @@ int RelocateHelper(ElfInfo *Info, Elf_Rela *Rela, short IsRel, void **Relocated)
reloc = symAddress + Rela->r_addend;
break;
}
#endif
#endif // __LP64__
default:
{

2
Userspace/libc/interpreter/start.c
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@ -128,6 +128,8 @@ __attribute__((naked, used, no_stack_protector)) void _start()
"call _exit\n"); /* Call _exit */
#elif defined(__i386__)
#warning "i386 _start not implemented"
#elif defined(__aarch64__)
#warning "aarch64 _start not implemented"
#else
#error "Unsupported architecture"
#endif

2
Userspace/libc/runtime/Makefile
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@ -17,7 +17,7 @@ build: $(OBJ)
%.o: %.c
$(info Compiling $<)
$(CC) -nostdlib -mno-red-zone -std=c17 -DLIBC_GIT_COMMIT='"$(shell git rev-parse HEAD)"' -c $< -o $@
$(CC) -nostdlib -std=c17 -DLIBC_GIT_COMMIT='"$(shell git rev-parse HEAD)"' -c $< -o $@
%.o: %.S
$(info Compiling $<)

2
Userspace/libc/runtime/Scrt1.c
View File

@ -68,6 +68,8 @@ __attribute__((naked, used, no_stack_protector, section(".text"))) void _start()
"call _exit\n");
#elif defined(__i386__)
#warning "i386 _start not implemented"
#elif defined(__aarch64__)
#warning "aarch64 _start not implemented"
#else
#error "Unsupported architecture"
#endif

2
Userspace/libc/runtime/crt1.c
View File

@ -68,6 +68,8 @@ __attribute__((naked, used, no_stack_protector, section(".text"))) void _start()
"call _exit\n");
#elif defined(__i386__)
#warning "i386 _start not implemented"
#elif defined(__aarch64__)
#warning "aarch64 _start not implemented"
#else
#error "Unsupported architecture"
#endif

21
Userspace/libc/src/softfloat.c Normal file
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@ -0,0 +1,21 @@
/*
This file is part of Fennix C Library.
Fennix C Library is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix C Library. If not, see <https://www.gnu.org/licenses/>.
*/
double __trunctfdf2(long double a)
{
return (double)a;
}

4
Userspace/libc/src/std/pthread.c
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@ -108,8 +108,12 @@ export int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int);
export pthread_t pthread_self(void)
{
pthread_t tid;
#if defined(__amd64__) || defined(__i386__)
__asm__ __volatile__("mov %%fs:0, %0"
: "=r"(tid));
#elif defined(__aarch64__)
tid = 0;
#endif
return tid;
}

3
Userspace/libc/src/tls.c
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@ -24,7 +24,10 @@
export __attribute__((naked, used, no_stack_protector)) void *__tls_get_addr(void *__data)
{
#warning "__tls_get_addr not implemented"
#if defined(__amd64__) || defined(__i386__)
__asm__("ud2");
#endif
}
int __init_pthread(void)