Usermode/ld-acess - x86_64 support

diff --git a/Usermode/Libraries/ld-acess.so_src/Makefile b/Usermode/Libraries/ld-acess.so_src/Makefile
index 64a120c..87b8213 100644 (file)
--- a/Usermode/Libraries/ld-acess.so_src/Makefile
+++ b/Usermode/Libraries/ld-acess.so_src/Makefile
@@ -9,10 +9,9 @@ OBJ += arch/$(ARCHDIR).ao
 BIN = ld-acess.so
 EXTRABIN := libld-acess.so
 
-CFLAGS   = -Wall -fno-builtin -fno-leading-underscore -fno-stack-protector
+CFLAGS   = -Wall -fno-builtin -fno-leading-underscore -fno-stack-protector -fPIC
 CFLAGS  += $(CPPFLAGS)
-ASFLAGS  = -felf
-LDFLAGS  = -T link.ld -Map map.txt --export-dynamic
+LDFLAGS  = -T arch/$(ARCHDIR).ld -Map map.txt --export-dynamic
 
 include ../Makefile.tpl
 
@@ -27,6 +26,8 @@ $(_XBIN): $(_BIN)
        @mkdir -p $(dir $@)
        @$(AS) $(ASFLAGS) -o $@ $<
 
+.PRECIOUS: $(OBJ:%.ao=%.asm)
+
 # Preprocessing objects if needed
 $(_OBJPREFIX)%: %.h
        @echo [CPP] -o $@

diff --git a/Usermode/Libraries/ld-acess.so_src/arch/x86.ld b/Usermode/Libraries/ld-acess.so_src/arch/x86.ld
new file mode 100644 (file)
index 0000000..3ab4f1a
--- /dev/null
+++ b/Usermode/Libraries/ld-acess.so_src/arch/x86.ld
@@ -0,0 +1,66 @@
+ENTRY(SoMain)
+OUTPUT_FORMAT(elf32-i386)
+
+SECTIONS {
+    . = 0xBBFF0000;
+    gLinkedBase = .;
+       . += SIZEOF_HEADERS;
+       .interp         : { *(.interp) }
+       .note.gnu.build-id : { *(.note.gnu.build-id) }
+       .hash           : { *(.hash) }
+       .gnu.hash       : { *(.gnu.hash) }
+       .dynsym         : { *(.dynsym) }
+       .dynstr         : { *(.dynstr) }
+       .gnu.version    : { *(.gnu.version) }
+       .gnu.version_d  : { *(.gnu.version_d) }
+       .gnu.version_r  : { *(.gnu.version_r) }
+       .rel.dyn        :
+       {
+               *(.rel.init)
+               *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*)
+               *(.rel.fini)
+               *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*)
+               *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*)
+               *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*)
+               *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*)
+               *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*)
+               *(.rel.ctors)
+               *(.rel.dtors)
+               *(.rel.got)
+               *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*)
+       }
+       .rela.dyn       :
+       {
+               *(.rela.init)
+               *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
+               *(.rela.fini)
+               *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
+               *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
+               *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
+               *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
+               *(.rela.ctors)
+               *(.rela.dtors)
+               *(.rela.got)
+               *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
+       }
+
+   .text : AT(ADDR(.text)) {
+        code = .;
+        *(.text)
+        *(.rodata*)
+   }
+
+   .data ALIGN (0x1000) : AT(ADDR(.data)) {
+        data = .;
+        *(.data)
+   }
+
+   .bss ALIGN (0x1000) : AT(ADDR(.bss)) {
+        _sbss = .;
+        *(COMMON)
+        *(.bss)
+        _ebss = .;
+        bss = .;
+   }
+   _end = .;
+}

diff --git a/Usermode/Libraries/ld-acess.so_src/arch/x86_64.asm.h b/Usermode/Libraries/ld-acess.so_src/arch/x86_64.asm.h
new file mode 100644 (file)
index 0000000..a21bf18
--- /dev/null
+++ b/Usermode/Libraries/ld-acess.so_src/arch/x86_64.asm.h
@@ -0,0 +1,173 @@
+; ========================
+; AcssMicro - System Calls
+; ========================
+
+%include "../../../Kernel/include/syscalls.inc.asm"
+
+[bits 64]
+
+[section .text]
+; DEST
+; SRC
+_memcpy:
+       push rbp
+       mov rbp, rsp
+       push rdi
+       push rsi        ; // DI and SI must be maintained, CX doesn't
+       
+       mov rcx, [rbp+4*8]
+       mov rsi, [rbp+3*8]
+       mov rdi, [rbp+2*8]
+       rep movsb
+       
+       pop rsi
+       pop rdi
+       pop rbp
+       ret
+
+[global _errno]
+_errno:        dw      0       ; Placed in .text, to allow use of relative addressing
+
+#define SYSCALL0(_name,_num)   SYSCALL0 _name, _num
+#define SYSCALL1(_name,_num)   SYSCALL1 _name, _num
+#define SYSCALL2(_name,_num)   SYSCALL2 _name, _num
+#define SYSCALL3(_name,_num)   SYSCALL3 _name, _num
+#define SYSCALL4(_name,_num)   SYSCALL4 _name, _num
+#define SYSCALL5(_name,_num)   SYSCALL5 _name, _num
+#define SYSCALL6(_name,_num)   SYSCALL6 _name, _num
+
+;%define SYSCALL_OP    jmp 0xCFFF0000
+%define SYSCALL_OP     int 0xAC
+
+; System Call - No Arguments
+%macro SYSCALL0        2
+[global %1:func]
+%1:
+       push rbx
+       mov eax, %2
+       SYSCALL_OP
+       mov [DWORD rel _errno], ebx
+       pop rbx
+       ret
+%endmacro
+
+%macro _SYSCALL_HEAD 2
+[global %1:func]
+%1:
+       push rbp
+       mov rbp, rsp
+       push rbx
+       mov eax, %2
+%endmacro
+%macro _SYSCALL_TAIL 0
+       mov [DWORD rel _errno], ebx
+       pop rbx
+       pop rbp
+       ret
+%endmacro
+
+; System Call - 1 Argument
+%macro SYSCALL1        2
+_SYSCALL_HEAD %1, %2
+       mov rbx, [rbp+2*8]
+       SYSCALL_OP
+_SYSCALL_TAIL
+%endmacro
+
+; System Call - 2 Arguments
+%macro SYSCALL2        2
+_SYSCALL_HEAD %1, %2
+       mov rbx, [rbp+2*8]
+       mov rcx, [rbp+3*8]
+       SYSCALL_OP
+_SYSCALL_TAIL
+%endmacro
+
+; System Call - 3 Arguments
+%macro SYSCALL3        2
+_SYSCALL_HEAD %1, %2
+       mov rbx, [rbp+2*8]
+       mov rcx, [rbp+3*8]
+       mov rdx, [rbp+4*8]
+       SYSCALL_OP
+_SYSCALL_TAIL
+%endmacro
+
+; System Call - 4 Arguments
+%macro SYSCALL4        2
+_SYSCALL_HEAD %1, %2
+       push rdi
+       mov rbx, [rbp+2*8]
+       mov rcx, [rbp+3*8]
+       mov rdx, [rbp+4*8]
+       mov rdi, [rbp+5*8]
+       SYSCALL_OP
+       pop rdi
+_SYSCALL_TAIL
+%endmacro
+
+; System Call - 5 Arguments
+%macro SYSCALL5        2
+_SYSCALL_HEAD %1, %2
+       push rdi
+       push rsi
+       mov rbx, [rbp+2*8]
+       mov rcx, [rbp+3*8]
+       mov rdx, [rbp+4*8]
+       mov rdi, [rbp+5*8]
+       mov rsi, [rbp+6*8]
+       SYSCALL_OP
+       pop rsi
+       pop rdi
+_SYSCALL_TAIL
+%endmacro
+
+; System Call - 6 Arguments
+%macro SYSCALL6        2
+_SYSCALL_HEAD %1, %2
+       push rdi
+       push rsi
+       mov rbx, [rbp+2*8]
+       mov rcx, [rbp+3*8]
+       mov rdx, [rbp+4*8]
+       mov rdi, [rbp+5*8]
+       mov rsi, [rbp+6*8]
+       mov rbp, [rbp+7*8]
+       SYSCALL_OP
+       pop rsi
+       pop rdi
+_SYSCALL_TAIL
+%endmacro
+
+; // Override the clone syscall
+#define clone  _clone_raw
+#include "syscalls.s.h"
+#undef clone
+
+[global clone:func]
+clone:
+       push rbp
+       mov rbp, rsp
+       push rbx
+       
+       mov rbx, [rbp+3*8]      ; Get new stack pointer
+       
+       ; Check if the new stack is being used
+       test rbx, rbx
+       jz .doCall
+       ; Quick hack, just this stack frame
+       mov rax, [rbp+1*8]
+       mov [rbx-1*8], rax      ; Return
+       mov [rbx-2*8], rbx      ; EBP
+       and QWORD [rbx-3*8], BYTE 0     ; EBX
+       sub rbx, 3*8
+.doCall:
+       mov eax, SYS_CLONE
+       mov rcx, rbx    ; Stack
+       mov rbx, [rbp+2*8]      ; Flags
+       SYSCALL_OP
+       mov [rel _errno], ebx
+       pop rbx
+       pop rbp
+       ret
+

diff --git a/Usermode/Libraries/ld-acess.so_src/arch/x86_64.ld b/Usermode/Libraries/ld-acess.so_src/arch/x86_64.ld
new file mode 100644 (file)
index 0000000..5dd6902
--- /dev/null
+++ b/Usermode/Libraries/ld-acess.so_src/arch/x86_64.ld
@@ -0,0 +1,66 @@
+ENTRY(SoMain)
+OUTPUT_FORMAT(elf64-x86-64)
+
+SECTIONS {
+       . = 0x00200000;
+       gLinkedBase = .;
+       . += SIZEOF_HEADERS;
+       .interp         : { *(.interp) }
+       .note.gnu.build-id : { *(.note.gnu.build-id) }
+       .hash           : { *(.hash) }
+       .gnu.hash       : { *(.gnu.hash) }
+       .dynsym         : { *(.dynsym) }
+       .dynstr         : { *(.dynstr) }
+       .gnu.version    : { *(.gnu.version) }
+       .gnu.version_d  : { *(.gnu.version_d) }
+       .gnu.version_r  : { *(.gnu.version_r) }
+       .rel.dyn        :
+       {
+               *(.rel.init)
+               *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*)
+               *(.rel.fini)
+               *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*)
+               *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*)
+               *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*)
+               *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*)
+               *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*)
+               *(.rel.ctors)
+               *(.rel.dtors)
+               *(.rel.got)
+               *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*)
+       }
+       .rela.dyn       :
+       {
+               *(.rela.init)
+               *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
+               *(.rela.fini)
+               *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
+               *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
+               *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
+               *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
+               *(.rela.ctors)
+               *(.rela.dtors)
+               *(.rela.got)
+               *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
+       }
+
+   .text : AT(ADDR(.text)) {
+        code = .;
+        *(.text)
+        *(.rodata*)
+   }
+
+   .data ALIGN (0x1000) : AT(ADDR(.data)) {
+        data = .;
+        *(.data)
+   }
+
+   .bss ALIGN (0x1000) : AT(ADDR(.bss)) {
+        _sbss = .;
+        *(COMMON)
+        *(.bss)
+        _ebss = .;
+        bss = .;
+   }
+   _end = .;
+}

diff --git a/Usermode/Libraries/ld-acess.so_src/link.ld b/Usermode/Libraries/ld-acess.so_src/link.ld
deleted file mode 100644 (file)
index 3ab4f1a..0000000
--- a/Usermode/Libraries/ld-acess.so_src/link.ld
+++ /dev/null
@@ -1,66 +0,0 @@
-ENTRY(SoMain)
-OUTPUT_FORMAT(elf32-i386)
-
-SECTIONS {
-    . = 0xBBFF0000;
-    gLinkedBase = .;
-       . += SIZEOF_HEADERS;
-       .interp         : { *(.interp) }
-       .note.gnu.build-id : { *(.note.gnu.build-id) }
-       .hash           : { *(.hash) }
-       .gnu.hash       : { *(.gnu.hash) }
-       .dynsym         : { *(.dynsym) }
-       .dynstr         : { *(.dynstr) }
-       .gnu.version    : { *(.gnu.version) }
-       .gnu.version_d  : { *(.gnu.version_d) }
-       .gnu.version_r  : { *(.gnu.version_r) }
-       .rel.dyn        :
-       {
-               *(.rel.init)
-               *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*)
-               *(.rel.fini)
-               *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*)
-               *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*)
-               *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*)
-               *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*)
-               *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*)
-               *(.rel.ctors)
-               *(.rel.dtors)
-               *(.rel.got)
-               *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*)
-       }
-       .rela.dyn       :
-       {
-               *(.rela.init)
-               *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
-               *(.rela.fini)
-               *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
-               *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
-               *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
-               *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
-               *(.rela.ctors)
-               *(.rela.dtors)
-               *(.rela.got)
-               *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
-       }
-
-   .text : AT(ADDR(.text)) {
-        code = .;
-        *(.text)
-        *(.rodata*)
-   }
-
-   .data ALIGN (0x1000) : AT(ADDR(.data)) {
-        data = .;
-        *(.data)
-   }
-
-   .bss ALIGN (0x1000) : AT(ADDR(.bss)) {
-        _sbss = .;
-        *(COMMON)
-        *(.bss)
-        _ebss = .;
-        bss = .;
-   }
-   _end = .;
-}