hex1: Implement various improvements:
* Make sure to close all protocols before exit. * Use more sophisticated command line argument processing that pushes command line arguments onto stack. * Switch to more readable M1 defines.
This commit is contained in:
parent
7020101bd7
commit
9b9ff9ac52
|
@ -3,474 +3,487 @@
|
|||
#
|
||||
# SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
DEFINE ADDI32_to_R13 4981C5
|
||||
DEFINE ADDI8_RBX 4883C3
|
||||
DEFINE ADD_RCX_to_RAX 4801C8
|
||||
DEFINE ADD_R14_to_RAX 4C01F0
|
||||
DEFINE ADDI8_RSP 4883C4
|
||||
DEFINE CALLI32 E8
|
||||
DEFINE CALL_RCX_Immediate8 FF51
|
||||
DEFINE CALL_R14_Immediate8 41FF56
|
||||
DEFINE CALL_R14_Immediate32 41FF96
|
||||
DEFINE CMPI8_AL 3C
|
||||
DEFINE CMPI32_RAX 483D
|
||||
DEFINE CMPI32_R15 4981FF
|
||||
DEFINE COPY_RAX_to_R14 4989C6
|
||||
DEFINE COPY_RBX_to_R12 4989DC
|
||||
DEFINE COPY_RBX_to_R13 4989DD
|
||||
DEFINE COPY_RCX_to_RAX 4889C1
|
||||
DEFINE COPY_RCX_to_R15 4989CF
|
||||
DEFINE COPY_RSP_to_RBP 4889E5
|
||||
DEFINE COPY_RSP_to_RDX 4889E2
|
||||
DEFINE COPY_RSP_to_R8 4989E0
|
||||
DEFINE COPY_RBP_to_RSP 4889EC
|
||||
DEFINE COPY_RDI_to_RCX 4889F9
|
||||
DEFINE COPY_R12_to_R8 4D89E0
|
||||
DEFINE COPY_RBX_to_RCX 4889D9
|
||||
DEFINE COPY_R13_to_R8 4D89E8
|
||||
DEFINE COPY_R14_to_RCX 4C89F1
|
||||
DEFINE COPY_R15_to_RCX 4C89F9
|
||||
DEFINE COPY_R15_to_R9 4D89F9
|
||||
DEFINE JE32 0F84
|
||||
DEFINE JL32 0F8C
|
||||
DEFINE JMP32 E9
|
||||
DEFINE JNE8 75
|
||||
DEFINE JNE32 0F85
|
||||
DEFINE LOAD32_Address_in_RAX_into_RAX 678B00
|
||||
DEFINE LOAD64_into_RBX_from_Address_RAX_Immediate8 488B58
|
||||
DEFINE LOAD64_into_RAX_from_Address_RSP_Immediate8 488B4424
|
||||
DEFINE LOAD64_into_RCX_from_Address_RSP_Immediate8 488B4C24
|
||||
DEFINE LOAD64_into_RCX_from_Address_RCX_Immediate8 488B49
|
||||
DEFINE LOAD64_into_RDI_from_Address_RSP_Immediate8 488B7C24
|
||||
DEFINE LOAD64_into_RBX_from_Address_RSP_Immediate8 488B5C24
|
||||
DEFINE LOAD64_into_R14_from_Address_RDX_Immediate8 4C8B72
|
||||
DEFINE LOAD64_into_R14_from_Address_R14_Immediate32 4D8BB6
|
||||
DEFINE LOAD8_AL_from_Address_RBX 8A03
|
||||
DEFINE LOADI8_DH B6
|
||||
DEFINE LOADI32_RAX 48C7C0
|
||||
DEFINE LOADI32_RDX 48C7C2
|
||||
DEFINE LOADI32_R13 49C7C5
|
||||
DEFINE LOADI32_R14 49C7C6
|
||||
DEFINE LOADI32_R15 49C7C7
|
||||
DEFINE LOAD64_rel_RCX 488B0D
|
||||
DEFINE LOAD64_rel_RDX 488B15
|
||||
DEFINE LOAD64_rel_R14 4C8B35
|
||||
DEFINE NOT_R15 49F7D7
|
||||
DEFINE POP_RAX 58
|
||||
DEFINE POP_RCX 59
|
||||
DEFINE POP_RSI 5E
|
||||
DEFINE POP_R9 4159
|
||||
DEFINE POP_R14 415E
|
||||
DEFINE PUSH 6A
|
||||
DEFINE PUSH_RAX 50
|
||||
DEFINE PUSH_RBX 53
|
||||
DEFINE PUSH_RDX 52
|
||||
DEFINE PUSH_RSI 56
|
||||
DEFINE RET C3
|
||||
DEFINE ROR_R9 49D1C9
|
||||
DEFINE SHL8_R14 49C1E6
|
||||
DEFINE SHL8_RAX 48C1E0
|
||||
DEFINE STORE32_R13_to_Address_in_RAX 4C8928
|
||||
DEFINE STORE64_rel_R14 4C8935
|
||||
DEFINE STORE64_rel_RAX 488905
|
||||
DEFINE STOREI8_into_Address_RBX C603
|
||||
DEFINE SUBI8_RSP 4883EC
|
||||
DEFINE SUBI8_from_RAX 4883E8
|
||||
DEFINE SUB_R13_from_RAX 4C29E8
|
||||
DEFINE XOR_EDX_EDX 31D2
|
||||
DEFINE TEST_ESI_ESI 85F6
|
||||
DEFINE add_rbx, 4883C3
|
||||
DEFINE add_rsp, 4883C4
|
||||
DEFINE add_r13, 4981C5
|
||||
DEFINE add_rax,rcx 4801C8
|
||||
DEFINE add_rax,r14 4C01F0
|
||||
DEFINE add_rbx,[rdi+BYTE] 48035F
|
||||
DEFINE call E8
|
||||
DEFINE call_[rcx+BYTE] FF51
|
||||
DEFINE call_[r14+BYTE] 41FF56
|
||||
DEFINE call_[r14+DWORD] 41FF96
|
||||
DEFINE cmp_al, 3C
|
||||
DEFINE cmp_rax, 483D
|
||||
DEFINE cmp_r15, 4981FF
|
||||
DEFINE cmp_rbx,rdx 4839D3
|
||||
DEFINE je 0F84
|
||||
DEFINE je8 74
|
||||
DEFINE jl 0F8C
|
||||
DEFINE jmp E9
|
||||
DEFINE jmp8 EB
|
||||
DEFINE jne 0F85
|
||||
DEFINE jne8 75
|
||||
DEFINE lea_rdx,[rip+DWORD] 488D15
|
||||
DEFINE mov_dh, B6
|
||||
DEFINE mov_rax, 48C7C0
|
||||
DEFINE mov_rdx, 48C7C2
|
||||
DEFINE mov_r13, 49C7C5
|
||||
DEFINE mov_r14, 49C7C6
|
||||
DEFINE mov_r15, 49C7C7
|
||||
DEFINE mov_rbp,rsp 4889E5
|
||||
DEFINE mov_rcx,rbx 4889D9
|
||||
DEFINE mov_rcx,rdi 4889F9
|
||||
DEFINE mov_rcx,rsi 4889F1
|
||||
DEFINE mov_rcx,r8 4C89C1
|
||||
DEFINE mov_rcx,r9 4C89C9
|
||||
DEFINE mov_rcx,r13 4C89E9
|
||||
DEFINE mov_rdx,rbx 4889DA
|
||||
DEFINE mov_rdx,rsp 4889E2
|
||||
DEFINE mov_rsp,rbp 4889EC
|
||||
DEFINE mov_r8,rsp 4989E0
|
||||
DEFINE mov_r8,r15 4D89F8
|
||||
DEFINE mov_r9,r15 4D89F9
|
||||
DEFINE mov_r13,rcx 4989CD
|
||||
DEFINE mov_r14,rax 4989C6
|
||||
DEFINE mov_r15,rcx 4989CF
|
||||
DEFINE mov_al,[rbx] 8A03
|
||||
DEFINE mov_rax,[rax] 488B00
|
||||
DEFINE mov_[rbx], C603
|
||||
DEFINE mov_rbx,[rdi+BYTE] 488B5F
|
||||
DEFINE mov_rcx,[rdi+BYTE] 488B4F
|
||||
DEFINE mov_rcx,[rsp+BYTE] 488B4C24
|
||||
DEFINE mov_rdi,[rsp+BYTE] 488B7C24
|
||||
DEFINE mov_r14,[rdx+BYTE] 4C8B72
|
||||
DEFINE mov_[rax],r13 4C8928
|
||||
DEFINE not_r15 49F7D7
|
||||
DEFINE pop_rax 58
|
||||
DEFINE pop_rbx 5B
|
||||
DEFINE pop_rcx 59
|
||||
DEFINE pop_rdi 5F
|
||||
DEFINE pop_rsi 5E
|
||||
DEFINE pop_r8 4158
|
||||
DEFINE pop_r9 4159
|
||||
DEFINE pop_r13 415D
|
||||
DEFINE pop_r14 415E
|
||||
DEFINE pop_r15 415F
|
||||
DEFINE push 6A
|
||||
DEFINE push_rax 50
|
||||
DEFINE push_rbx 53
|
||||
DEFINE push_rdx 52
|
||||
DEFINE push_rsi 56
|
||||
DEFINE push_r13 4155
|
||||
DEFINE push_r14 4156
|
||||
DEFINE push_r15 4157
|
||||
DEFINE ret C3
|
||||
DEFINE ror_r9 49D1C9
|
||||
DEFINE shl_rax, 48C1E0
|
||||
DEFINE shl_r14, 49C1E6
|
||||
DEFINE sub_rax, 4883E8
|
||||
DEFINE sub_rbx, 4883EB
|
||||
DEFINE sub_rsp, 4883EC
|
||||
DEFINE sub_rax,r13 4C29E8
|
||||
DEFINE test_esi,esi 85F6
|
||||
DEFINE xor_edx,edx 31D2
|
||||
DEFINE xor_esi,esi 31F6
|
||||
DEFINE xor_r9,r9 4D31C9
|
||||
|
||||
|
||||
# efi_main(void *image_handle, struct efi_system_table *system)
|
||||
:_start
|
||||
COPY_RSP_to_RBP # save stack pointer
|
||||
COPY_RCX_to_R15 # save image_handle
|
||||
LOAD64_into_R14_from_Address_RDX_Immediate8 !96 # system->boot
|
||||
STORE64_rel_R14 %SystemBoot # save system->boot
|
||||
|
||||
# Allocate pool for single-character label table
|
||||
PUSH_RDX # allocate stack for table
|
||||
COPY_RSP_to_R8 # arg3 = &table
|
||||
XOR_EDX_EDX # zero rdx
|
||||
LOADI8_DH !0x8 # arg2 = 256 * 8 = 2048 = 0x800
|
||||
PUSH !2
|
||||
POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
SUBI8_RSP !24 # allocate shadow stack space for UEFI
|
||||
CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 2048, &table)
|
||||
ADDI8_RSP !24 # deallocate stack
|
||||
POP_RAX # get table
|
||||
STORE64_rel_RAX %table # save table
|
||||
mov_rbp,rsp # save stack pointer
|
||||
mov_r15,rcx # save image_handle
|
||||
mov_r14,[rdx+BYTE] !96 # system->boot
|
||||
|
||||
# Open Loaded Image protocol
|
||||
PUSH_RAX # allocate stack for image
|
||||
COPY_RSP_to_R8 # arg3 = &image
|
||||
LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL_8 # EFI_LOADED_IMAGE_PROTOCOL_GUID (last 64 bits)
|
||||
PUSH_RDX # push last 64 bits onto stack
|
||||
LOAD64_rel_RDX %LOADED_IMAGE_PROTOCOL # EFI_LOADED_IMAGE_PROTOCOL_GUID (first 64 bits)
|
||||
PUSH_RDX # push first 64 bits onto stack
|
||||
COPY_RSP_to_RDX # arg2 = &guid
|
||||
PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
PUSH !0 # arg5 = NULL
|
||||
COPY_R15_to_R9 # arg4 = image_handle
|
||||
COPY_R15_to_RCX # arg1 = image_handle
|
||||
SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
CALL_R14_Immediate32 %280 # system->boot->open_protocol(image_handle, &guid, &image, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
LOAD64_into_RAX_from_Address_RSP_Immediate8 !64 # get_image
|
||||
COPY_RCX_to_RAX # save image
|
||||
|
||||
# Command line args
|
||||
LOAD64_into_RBX_from_Address_RAX_Immediate8 !56 # options = image->load_options
|
||||
|
||||
:loop_options1 # Skip application name
|
||||
ADDI8_RBX !2 # ++options
|
||||
LOAD8_AL_from_Address_RBX # *options
|
||||
CMPI8_AL !0x20 # if *options != ' '
|
||||
JNE8 !loop_options1 # then jump
|
||||
|
||||
ADDI8_RBX !2 # ++options
|
||||
COPY_RBX_to_R12 # save input file
|
||||
|
||||
:loop_options2 # Skip argv[1]
|
||||
ADDI8_RBX !2 # ++options
|
||||
LOAD8_AL_from_Address_RBX # *options
|
||||
CMPI8_AL !0x20 # if *options != ' '
|
||||
JNE8 !loop_options2 # then jump
|
||||
|
||||
STOREI8_into_Address_RBX !0 # *options = 0;
|
||||
ADDI8_RBX !2 # ++options
|
||||
COPY_RBX_to_R13 # save output file
|
||||
mov_r9,r15 # arg4 = image_handle
|
||||
lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
mov_rcx,r9 # arg1 = image_handle
|
||||
push_rax # allocate stack for image
|
||||
mov_r8,rsp # arg3 = &image
|
||||
push !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
push !0 # arg5 = NULL
|
||||
sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
call_[r14+DWORD] %280 # system->boot->open_protocol(image_handle, &guid, &image, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
mov_rdi,[rsp+BYTE] !48 # save image
|
||||
|
||||
# Get root file system
|
||||
PUSH_RAX # allocate stack for rootfs
|
||||
COPY_RSP_to_R8 # arg3 = &rootfs
|
||||
LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL_8 # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (last 64 bits)
|
||||
PUSH_RDX # push last 64 bits onto stack
|
||||
LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (first 64 bits)
|
||||
PUSH_RDX # push first 64 bits onto stack
|
||||
COPY_RSP_to_RDX # arg2 = &guid
|
||||
PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
PUSH !0 # arg5 = NULL
|
||||
COPY_R15_to_R9 # arg4 = image_handle
|
||||
LOAD64_into_RCX_from_Address_RCX_Immediate8 !24 # arg1 = root_device = image->device
|
||||
SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
CALL_R14_Immediate32 %280 # system->boot->open_protocol(root_device, &guid, &rootfs, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
LOAD64_into_RCX_from_Address_RSP_Immediate8 !64 # get rootfs
|
||||
mov_r9,r15 # arg4 = image_handle
|
||||
lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
mov_rcx,[rdi+BYTE] !24 # arg1 = root_device = image->device
|
||||
mov_r13,rcx # save root_device
|
||||
push_rax # allocate stack for rootfs
|
||||
mov_r8,rsp # arg3 = &rootfs
|
||||
push !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
push !0 # arg5 = NULL
|
||||
sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
call_[r14+DWORD] %280 # system->boot->open_protocol(root_device, &guid, &rootfs, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
mov_rcx,[rsp+BYTE] !48 # get rootfs
|
||||
|
||||
# Get root directory
|
||||
PUSH_RDX # allocate stack for rootdir
|
||||
COPY_RSP_to_RDX # arg2 = &rootdir
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
CALL_RCX_Immediate8 !8 # rootfs->open_volume(rootfs, &rootdir)
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_R14 # save rootdir
|
||||
push_rax # allocate stack for rootdir
|
||||
mov_rdx,rsp # arg2 = &rootdir
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
call_[rcx+BYTE] !8 # rootfs->open_volume(rootfs, &rootdir)
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # deallocate stack
|
||||
pop_rsi # get rootdir
|
||||
|
||||
# Push command line arguments onto stack
|
||||
mov_rbx,[rdi+BYTE] !56 # options = image->load_options
|
||||
mov_rdx,rbx # save beginning of load_options
|
||||
add_rbx,[rdi+BYTE] !48 # go to the end of load_options
|
||||
push !0 # Save end of arguments (NULL) onto stack
|
||||
:loop_options
|
||||
cmp_rbx,rdx # Check if we are done
|
||||
je8 !loop_options_done # We are done
|
||||
sub_rbx, !2 # --options
|
||||
mov_al,[rbx] # *options
|
||||
cmp_al, !0x20 # if *options != ' '
|
||||
jne8 !loop_options # then continue looping
|
||||
mov_[rbx], !0 # zero it
|
||||
add_rbx, !2 # ++options
|
||||
push_rbx # push another argument onto stack
|
||||
jmp8 !loop_options # next argument
|
||||
:loop_options_done
|
||||
|
||||
# Open file for reading
|
||||
PUSH_RDX # allocate stack for fin
|
||||
COPY_RSP_to_RDX # arg2 = &fin
|
||||
PUSH !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
PUSH !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
POP_R9 # arg4 = EFI_FILE_MODE_READ
|
||||
COPY_R12_to_R8 # arg3 = in
|
||||
COPY_R14_to_RCX # arg1 = rootdir
|
||||
SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
CALL_RCX_Immediate8 !8 # rootdir->open()
|
||||
LOAD64_into_RDI_from_Address_RSP_Immediate8 !40 # get fin
|
||||
pop_r8 # arg3 = in
|
||||
push_rdx # allocate stack for fin
|
||||
mov_rdx,rsp # arg2 = &fin
|
||||
push !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
push !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
pop_r9 # arg4 = EFI_FILE_MODE_READ
|
||||
mov_rcx,rsi # arg1 = rootdir
|
||||
sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
call_[rcx+BYTE] !8 # rootdir->open()
|
||||
add_rsp, !40 # deallocate stack
|
||||
pop_rdi # get fin
|
||||
|
||||
# Open file for writing
|
||||
PUSH_RDX # allocate stack for fout
|
||||
COPY_RSP_to_RDX # arg2 = &fout
|
||||
PUSH !0 # arg5 = 0
|
||||
PUSH !7 # to get 0x8000000000000003 we set the rightmost 3 bits
|
||||
POP_R9 # and then do right rotation by 1
|
||||
ROR_R9 # arg4 = EFI_FILE_MODE_CREATE| EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ
|
||||
COPY_R13_to_R8 # arg3 = out
|
||||
COPY_R14_to_RCX # arg1 = rootdir
|
||||
SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
CALL_RCX_Immediate8 !8 # rootdir->open()
|
||||
LOAD64_into_RBX_from_Address_RSP_Immediate8 !40 # get fout
|
||||
pop_r8 # arg3 = out
|
||||
push_rdx # allocate stack for fout
|
||||
mov_rdx,rsp # arg2 = &fout
|
||||
push !0 # arg5 = 0
|
||||
push !7 # to get 0x8000000000000003 we set the rightmost 3 bits
|
||||
pop_r9 # and then do right rotation by 1
|
||||
ror_r9 # arg4 = EFI_FILE_MODE_CREATE| EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ
|
||||
mov_rcx,rsi # arg1 = rootdir
|
||||
sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
call_[rcx+BYTE] !8 # rootdir->open()
|
||||
add_rsp, !40 # deallocate stack
|
||||
pop_rbx # get fout
|
||||
|
||||
LOADI32_R15 %-1 # Our flag for byte processing
|
||||
LOADI32_R14 %0 # temp storage for the sum
|
||||
LOADI32_R13 %0 # Our starting IP
|
||||
CALLI32 %First_pass # Process it
|
||||
# Save variables that are needed for cleanup
|
||||
push_r13 # save root_device
|
||||
push_r14 # save system->boot
|
||||
push_r15 # save image_handle
|
||||
push_rsi # save rootdir
|
||||
|
||||
# Allocate pool for single-character label table
|
||||
# pointer to table will be stored at the top of the stack
|
||||
push_rdx # allocate stack for table
|
||||
mov_r8,rsp # arg3 = &table
|
||||
xor_edx,edx # zero rdx
|
||||
mov_dh, !0x8 # arg2 = 256 * 8 = 2048 = 0x800
|
||||
push !2
|
||||
pop_rcx # arg1 = EFI_LOADER_DATA
|
||||
sub_rsp, !24 # allocate shadow stack space for UEFI function
|
||||
call_[r14+BYTE] !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 2048, &table)
|
||||
add_rsp, !24 # deallocate stack
|
||||
|
||||
mov_r15, %-1 # Our flag for byte processing
|
||||
mov_r14, %0 # temp storage for the sum
|
||||
mov_r13, %0 # Our starting IP
|
||||
call %First_pass # Process it
|
||||
|
||||
# rewind input file
|
||||
COPY_RDI_to_RCX # Using our input file
|
||||
XOR_EDX_EDX # Offset Zero
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
CALL_RCX_Immediate8 !56 # fin->set_position(fin, 0)
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
mov_rcx,rdi # Using our input file
|
||||
xor_edx,edx # Offset Zero
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
call_[rcx+BYTE] !56 # fin->set_position(fin, 0)
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # deallocate stack
|
||||
|
||||
LOADI32_R15 %-1 # Our flag for byte processing
|
||||
LOADI32_R14 %0 # temp storage for the sum
|
||||
LOADI32_R13 %0 # Our starting IP
|
||||
CALLI32 %Second_pass # Process it
|
||||
mov_r15, %-1 # Our flag for byte processing
|
||||
mov_r14, %0 # temp storage for the sum
|
||||
mov_r13, %0 # Our starting IP
|
||||
call %Second_pass # Process it
|
||||
|
||||
JMP32 %Done
|
||||
jmp %Done
|
||||
|
||||
:First_pass
|
||||
CALLI32 %Read_byte
|
||||
call %Read_byte
|
||||
|
||||
# Deal with EOF
|
||||
CMPI32_RAX %-4
|
||||
JE32 %First_pass_done
|
||||
cmp_rax, %-4
|
||||
je %First_pass_done
|
||||
|
||||
# Check for :
|
||||
CMPI32_RAX %0x3a
|
||||
JNE32 %First_pass_0
|
||||
cmp_rax, %0x3a
|
||||
jne %First_pass_0
|
||||
|
||||
# Deal with label
|
||||
CALLI32 %StoreLabel
|
||||
call %StoreLabel
|
||||
|
||||
:First_pass_0
|
||||
# Check for %
|
||||
CMPI32_RAX %0x25
|
||||
JE32 %First_pass_pointer
|
||||
cmp_rax, %0x25
|
||||
je %First_pass_pointer
|
||||
|
||||
# Deal with everything else
|
||||
CALLI32 %hex # Process our char
|
||||
call %hex # Process our char
|
||||
|
||||
# Deal with EOF
|
||||
CMPI32_RAX %-4
|
||||
JE32 %First_pass_done
|
||||
cmp_rax, %-4
|
||||
je %First_pass_done
|
||||
|
||||
# deal with -1 values
|
||||
CMPI32_RAX %0
|
||||
JL32 %First_pass
|
||||
cmp_rax, %0
|
||||
jl %First_pass
|
||||
|
||||
# deal with toggle
|
||||
CMPI32_R15 %0
|
||||
JE32 %First_pass_1
|
||||
ADDI32_to_R13 %1 # Increment IP
|
||||
cmp_r15, %0
|
||||
je %First_pass_1
|
||||
add_r13, %1 # Increment IP
|
||||
|
||||
:First_pass_1
|
||||
NOT_R15
|
||||
JMP32 %First_pass
|
||||
not_r15
|
||||
jmp %First_pass
|
||||
|
||||
:First_pass_pointer
|
||||
# Deal with Pointer to label
|
||||
CALLI32 %Read_byte # Drop the char
|
||||
ADDI32_to_R13 %4 # Increment IP
|
||||
JMP32 %First_pass # Loop again
|
||||
call %Read_byte # Drop the char
|
||||
add_r13, %4 # Increment IP
|
||||
jmp %First_pass # Loop again
|
||||
|
||||
:First_pass_done
|
||||
RET
|
||||
ret
|
||||
|
||||
:hex
|
||||
# deal with EOF
|
||||
CMPI32_RAX %-4
|
||||
JE32 %EOF
|
||||
cmp_rax, %-4
|
||||
je %EOF
|
||||
# deal with line comments starting with #
|
||||
CMPI32_RAX %0x23
|
||||
JE32 %ascii_comment
|
||||
cmp_rax, %0x23
|
||||
je %ascii_comment
|
||||
# deal with line comments starting with ;
|
||||
CMPI32_RAX %0x3b
|
||||
JE32 %ascii_comment
|
||||
cmp_rax, %0x3b
|
||||
je %ascii_comment
|
||||
# deal all ascii less than 0
|
||||
CMPI32_RAX %0x30
|
||||
JL32 %ascii_other
|
||||
cmp_rax, %0x30
|
||||
jl %ascii_other
|
||||
# deal with 0-9
|
||||
CMPI32_RAX %0x3a
|
||||
JL32 %ascii_num
|
||||
cmp_rax, %0x3a
|
||||
jl %ascii_num
|
||||
# deal with all ascii less than A
|
||||
CMPI32_RAX %0x41
|
||||
JL32 %ascii_other
|
||||
cmp_rax, %0x41
|
||||
jl %ascii_other
|
||||
# deal with A-F
|
||||
CMPI32_RAX %0x47
|
||||
JL32 %ascii_high
|
||||
cmp_rax, %0x47
|
||||
jl %ascii_high
|
||||
# deal with all ascii less than a
|
||||
CMPI32_RAX %0x61
|
||||
JL32 %ascii_other
|
||||
cmp_rax, %0x61
|
||||
jl %ascii_other
|
||||
# deal with a-f
|
||||
CMPI32_RAX %0x67
|
||||
JL32 %ascii_low
|
||||
cmp_rax, %0x67
|
||||
jl %ascii_low
|
||||
# The rest that remains needs to be ignored
|
||||
JMP32 %ascii_other
|
||||
jmp %ascii_other
|
||||
|
||||
:Second_pass
|
||||
CALLI32 %Read_byte
|
||||
call %Read_byte
|
||||
|
||||
# Deal with EOF
|
||||
CMPI32_RAX %-4
|
||||
JE32 %Second_pass_done
|
||||
cmp_rax, %-4
|
||||
je %Second_pass_done
|
||||
|
||||
# Simply drop the label
|
||||
CMPI32_RAX %0x3a
|
||||
JNE32 %Second_pass_0
|
||||
cmp_rax, %0x3a
|
||||
jne %Second_pass_0
|
||||
|
||||
CALLI32 %Read_byte
|
||||
JMP32 %Second_pass
|
||||
call %Read_byte
|
||||
jmp %Second_pass
|
||||
|
||||
:Second_pass_0
|
||||
# Deal with % pointer
|
||||
CMPI32_RAX %0x25
|
||||
JNE32 %Second_pass_1
|
||||
cmp_rax, %0x25
|
||||
jne %Second_pass_1
|
||||
|
||||
CALLI32 %StorePointer
|
||||
JMP32 %Second_pass
|
||||
call %StorePointer
|
||||
jmp %Second_pass
|
||||
|
||||
:Second_pass_1
|
||||
# Deal with everything else
|
||||
CALLI32 %hex # Process our char
|
||||
call %hex # Process our char
|
||||
|
||||
# Deal with EOF
|
||||
CMPI32_RAX %-4
|
||||
JE32 %Second_pass_done
|
||||
cmp_rax, %-4
|
||||
je %Second_pass_done
|
||||
|
||||
# deal with -1 values
|
||||
CMPI32_RAX %0
|
||||
JL32 %Second_pass
|
||||
cmp_rax, %0
|
||||
jl %Second_pass
|
||||
|
||||
# deal with toggle
|
||||
CMPI32_R15 %0
|
||||
JE32 %print
|
||||
cmp_r15, %0
|
||||
je %print
|
||||
|
||||
# process first byte of pair
|
||||
COPY_RAX_to_R14
|
||||
LOADI32_R15 %0
|
||||
JMP32 %Second_pass
|
||||
mov_r14,rax
|
||||
mov_r15, %0
|
||||
jmp %Second_pass
|
||||
|
||||
:Second_pass_done
|
||||
RET
|
||||
|
||||
:EOF
|
||||
RET
|
||||
ret
|
||||
:ascii_num
|
||||
SUBI8_from_RAX !0x30
|
||||
RET
|
||||
sub_rax, !0x30
|
||||
ret
|
||||
:ascii_low
|
||||
SUBI8_from_RAX !0x57
|
||||
RET
|
||||
sub_rax, !0x57
|
||||
ret
|
||||
:ascii_high
|
||||
SUBI8_from_RAX !0x37
|
||||
RET
|
||||
sub_rax, !0x37
|
||||
ret
|
||||
:ascii_other
|
||||
LOADI32_RAX %-1
|
||||
RET
|
||||
mov_rax, %-1
|
||||
ret
|
||||
:ascii_comment
|
||||
CALLI32 %Read_byte
|
||||
CMPI32_RAX %0xd
|
||||
JE32 %ascii_comment_cr
|
||||
CMPI32_RAX %0xa
|
||||
JNE32 %ascii_comment
|
||||
call %Read_byte
|
||||
cmp_rax, %0xd
|
||||
je %ascii_comment_cr
|
||||
cmp_rax, %0xa
|
||||
jne %ascii_comment
|
||||
:ascii_comment_cr
|
||||
LOADI32_RAX %-1
|
||||
RET
|
||||
mov_rax, %-1
|
||||
ret
|
||||
|
||||
# process second byte of pair
|
||||
:print
|
||||
# update the sum and store in output
|
||||
SHL8_R14 !4
|
||||
ADD_R14_to_RAX
|
||||
shl_r14, !4
|
||||
add_rax,r14
|
||||
|
||||
# flip the toggle
|
||||
NOT_R15 # R15 = -1
|
||||
not_r15 # R15 = -1
|
||||
|
||||
LOADI32_RDX %1 # set the size of chars we want
|
||||
CALLI32 %print_chars
|
||||
mov_rdx, %1 # set the size of chars we want
|
||||
call %print_chars
|
||||
|
||||
ADDI32_to_R13 %1 # Increment IP
|
||||
JMP32 %Second_pass
|
||||
add_r13, %1 # Increment IP
|
||||
jmp %Second_pass
|
||||
|
||||
|
||||
:Read_byte
|
||||
COPY_RDI_to_RCX # arg1 = fin
|
||||
PUSH !1 # size = 1
|
||||
COPY_RSP_to_RDX # arg2 = &size
|
||||
PUSH_RSI # allocate stack
|
||||
COPY_RSP_to_R8 # arg3 = &input
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
CALL_RCX_Immediate8 !32 # fin->read()
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # deallocate stack
|
||||
POP_RAX # save input to rax
|
||||
POP_RSI # save size to rsi
|
||||
mov_rcx,rdi # arg1 = fin
|
||||
push !1 # size = 1
|
||||
mov_rdx,rsp # arg2 = &size
|
||||
xor_esi,esi # zero rsi
|
||||
push_rsi # allocate stack
|
||||
mov_r8,rsp # arg3 = &input
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
call_[rcx+BYTE] !32 # fin->read()
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # deallocate stack
|
||||
pop_rax # save input to rax
|
||||
pop_rsi # save size to rsi
|
||||
|
||||
# If the file ended (0 bytes read) return EOF
|
||||
TEST_ESI_ESI # if size = 0
|
||||
JNE8 !Read_byte_1
|
||||
LOADI32_RAX %-4 # Put EOF in rax
|
||||
test_esi,esi # if size = 0
|
||||
jne8 !Read_byte_1
|
||||
mov_rax, %-4 # Put EOF in rax
|
||||
|
||||
:Read_byte_1
|
||||
RET # return
|
||||
ret # return
|
||||
|
||||
# Writes bytes stored in rax
|
||||
:print_chars
|
||||
COPY_RBX_to_RCX # arg1 = fout
|
||||
PUSH_RDX # set size
|
||||
COPY_RSP_to_RDX # arg2 = &size
|
||||
PUSH_RAX # allocate stack
|
||||
COPY_RSP_to_R8 # arg3 = &output
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
CALL_RCX_Immediate8 !40 # fout->write()
|
||||
ADDI8_RSP !40 # deallocate stack
|
||||
mov_rcx,rbx # arg1 = fout
|
||||
push_rdx # set size
|
||||
mov_rdx,rsp # arg2 = &size
|
||||
push_rax # allocate stack
|
||||
mov_r8,rsp # arg3 = &output
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
call_[rcx+BYTE] !40 # fout->write()
|
||||
add_rsp, !40 # deallocate stack
|
||||
|
||||
RET # return
|
||||
ret # return
|
||||
|
||||
:Get_table_target
|
||||
CALLI32 %Read_byte # Get single char label
|
||||
SHL8_RAX !3 # Each label in table takes 8 bytes to store
|
||||
LOAD64_rel_RCX %table # Get table
|
||||
ADD_RCX_to_RAX # Calculate offset
|
||||
RET
|
||||
call %Read_byte # Get single char label
|
||||
shl_rax, !3 # Each label in table takes 8 bytes to store
|
||||
mov_rcx,[rsp+BYTE] !24 # Get table
|
||||
add_rax,rcx # Calculate offset
|
||||
ret
|
||||
|
||||
:StoreLabel
|
||||
CALLI32 %Get_table_target
|
||||
STORE32_R13_to_Address_in_RAX # Write out pointer to table
|
||||
RET
|
||||
call %Get_table_target
|
||||
mov_[rax],r13 # Write out pointer to table
|
||||
ret
|
||||
|
||||
:StorePointer
|
||||
ADDI32_to_R13 %4 # Increment IP
|
||||
CALLI32 %Get_table_target # Get address of pointer
|
||||
LOAD32_Address_in_RAX_into_RAX # Get pointer
|
||||
SUB_R13_from_RAX # target - ip
|
||||
LOADI32_RDX %4 # set the size of chars we want
|
||||
CALLI32 %print_chars
|
||||
RET
|
||||
add_r13, %4 # Increment IP
|
||||
call %Get_table_target # Get address of pointer
|
||||
mov_rax,[rax] # Get pointer
|
||||
sub_rax,r13 # target - ip
|
||||
mov_rdx, %4 # set the size of chars we want
|
||||
call %print_chars
|
||||
ret
|
||||
|
||||
:Done
|
||||
pop_rcx # restore table
|
||||
pop_rsi # restore rootdir
|
||||
pop_r15 # restore image_handle
|
||||
pop_r14 # restore system->boot
|
||||
pop_r13 # restore root_device
|
||||
|
||||
# Free pool
|
||||
LOAD64_rel_RCX %table # arg1 = table
|
||||
PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
LOAD64_rel_R14 %SystemBoot # get system->boot
|
||||
CALL_R14_Immediate8 !72 # system->boot->free_pool(table)
|
||||
# arg1 = table
|
||||
push_rax # allocate shadow stack space for UEFI function
|
||||
call_[r14+BYTE] !72 # system->boot->free_pool(table)
|
||||
|
||||
COPY_RDI_to_RCX # arg1 = fin
|
||||
CALL_RCX_Immediate8 !16 # fin->close()
|
||||
COPY_RBX_to_RCX # arg1 = fout
|
||||
CALL_RCX_Immediate8 !16 # fout->close()
|
||||
mov_rcx,rdi # arg1 = fin
|
||||
call_[rcx+BYTE] !16 # fin->close()
|
||||
mov_rcx,rbx # arg1 = fout
|
||||
call_[rcx+BYTE] !16 # fout->close()
|
||||
mov_rcx,rsi # arg1 = rootdir
|
||||
call_[rcx+BYTE] !16 # rootdir->close()
|
||||
|
||||
COPY_RBP_to_RSP # restore stack
|
||||
RET # return to UEFI
|
||||
mov_r8,r15 # arg3 = image_handle
|
||||
lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
mov_rcx,r13 # arg1 = root_device
|
||||
xor_r9,r9 # arg4 = NULL
|
||||
sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
call_[r14+DWORD] %288 # system->boot->close_protocol(root_device, &guid, image_handle, 0)
|
||||
|
||||
mov_r8,r15 # arg3 = image_handle
|
||||
lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
mov_rcx,r8 # arg1 = image_handle
|
||||
xor_r9,r9 # arg4 = NULL
|
||||
call_[r14+DWORD] %288 # system->boot->close_protocol(image_handle, &guid, image_handle, 0)
|
||||
|
||||
mov_rsp,rbp # restore stack
|
||||
ret # return to UEFI
|
||||
|
||||
# Protocol GUIDs
|
||||
:LOADED_IMAGE_PROTOCOL
|
||||
%0x5b1b31a1
|
||||
@0x9562
|
||||
@0x11d2
|
||||
:LOADED_IMAGE_PROTOCOL_8
|
||||
!0x8e !0x3f !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
:SIMPLE_FS_PROTOCOL
|
||||
%0x0964e5b22
|
||||
@0x6459
|
||||
@0x11d2
|
||||
:SIMPLE_FS_PROTOCOL_8
|
||||
!0x8e !0x39 !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
:table
|
||||
%0 %0
|
||||
|
||||
:SystemBoot
|
||||
%0 %0
|
||||
|
||||
:PE32_end
|
||||
|
|
|
@ -3,6 +3,9 @@
|
|||
#
|
||||
# SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
# Some of the functions are deliberately inlined at the slight expense of
|
||||
# binary size to avoid tricky jump calculations in hex0 code.
|
||||
|
||||
.global _start
|
||||
.text
|
||||
|
||||
|
@ -11,9 +14,95 @@ _start:
|
|||
mov rbp, rsp # save stack pointer
|
||||
mov r15, rcx # save image_handle
|
||||
mov r14, [rdx+96] # system->boot
|
||||
mov [rip+SystemBoot], r14 # save system->boot
|
||||
|
||||
# Open Loaded Image protocol
|
||||
mov r9, r15 # arg4 = image_handle
|
||||
lea rdx, [rip+LOADED_IMAGE_PROTOCOL] # guid = &LOADED_IMAGE_PROTOCOL
|
||||
mov rcx, r9 # arg1 = image_handle
|
||||
push rax # allocate stack for image
|
||||
mov r8, rsp # arg3 = &image
|
||||
push 1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
push 0 # arg5 = NULL
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [r14+280] # system->boot->open_protocol(image_handle, &guid, &image, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
mov rdi, [rsp+48] # save image
|
||||
|
||||
# Get root file system
|
||||
mov r9, r15 # arg4 = image_handle
|
||||
lea rdx, [rip+SIMPLE_FS_PROTOCOL] # guid = &SIMPLE_FS_PROTOCOL
|
||||
mov rcx, [rdi+24] # arg1 = root_device = image->device
|
||||
mov r13, rcx # save root_device
|
||||
push rax # allocate stack for rootfs
|
||||
mov r8, rsp # arg3 = &rootfs
|
||||
push 1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
push 0 # arg5 = NULL
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [r14+280] # system->boot->open_protocol(root_device, &guid, &rootfs, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
mov rcx, [rsp+48] # get rootfs
|
||||
|
||||
# Get root directory
|
||||
push rax # allocate stack for rootdir
|
||||
mov rdx, rsp # arg2 = &rootdir
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
call [rcx+8] # rootfs->open_volume(rootfs, &rootdir)
|
||||
pop rax # deallocate stack
|
||||
pop rax # deallocate stack
|
||||
pop rsi # get rootdir
|
||||
|
||||
# Push command line arguments onto stack
|
||||
mov rbx, [rdi+56] # options = image->load_options
|
||||
mov rdx, rbx # save beginning of load_options
|
||||
add rbx, [rdi+48] # go to the end of load_options
|
||||
push 0 # Save end of arguments (NULL) onto stack
|
||||
loop_options:
|
||||
cmp rbx, rdx # Check if we are done
|
||||
je loop_options_done # We are done
|
||||
sub rbx, 2 # --options
|
||||
mov al, [rbx] # *options
|
||||
cmp al, 0x20 # if *options != ' '
|
||||
jne loop_options # then continue looping
|
||||
mov BYTE PTR [rbx], 0 # zero it
|
||||
add rbx, 2 # ++options
|
||||
push rbx # push another argument onto stack
|
||||
jmp loop_options # next argument
|
||||
loop_options_done:
|
||||
|
||||
# Open file for reading
|
||||
pop r8 # arg3 = in
|
||||
push rdx # allocate stack for fin
|
||||
mov rdx, rsp # arg2 = &fin
|
||||
push 1 # arg5 = EFI_FILE_READ_ONLY
|
||||
push 1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
pop r9 # arg4 = EFI_FILE_MODE_READ
|
||||
mov rcx, rsi # arg1 = rootdir
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [rcx+8] # rootdir->open()
|
||||
add rsp, 40 # deallocate stack
|
||||
pop rdi # get fin
|
||||
|
||||
# Open file for writing
|
||||
pop r8 # arg3 = out
|
||||
push rdx # allocate stack for fout
|
||||
mov rdx, rsp # arg2 = &fout
|
||||
push 0 # arg5 = 0
|
||||
push 7 # to get 0x8000000000000003 we set the rightmost 3 bits
|
||||
pop r9 # and then do right rotation by 1
|
||||
ror r9 # arg4 = EFI_FILE_MODE_CREATE| EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ
|
||||
mov rcx, rsi # arg1 = rootdir
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [rcx+8] # rootdir->open()
|
||||
add rsp, 40 # deallocate stack
|
||||
pop rbx # get fout
|
||||
|
||||
# Save variables that are needed for cleanup
|
||||
push r13 # save root_device
|
||||
push r14 # save system->boot
|
||||
push r15 # save image_handle
|
||||
push rsi # save rootdir
|
||||
|
||||
# Allocate pool for single-character label table
|
||||
# pointer to table will be stored at the top of the stack
|
||||
push rdx # allocate stack for table
|
||||
mov r8, rsp # arg3 = &table
|
||||
xor edx, edx # zero rdx
|
||||
|
@ -23,98 +112,6 @@ _start:
|
|||
sub rsp, 24 # allocate shadow stack space for UEFI
|
||||
call [r14+64] # system->boot->allocate_pool(EFI_LOADER_DATA, 2048, &table)
|
||||
add rsp, 24 # deallocate stack
|
||||
pop rax # get table
|
||||
mov [rip+table], rax # save table
|
||||
|
||||
# Open Loaded Image protocol
|
||||
push rax # allocate stack for image
|
||||
mov r8, rsp # arg3 = &image
|
||||
mov rdx, [rip+LOADED_IMAGE_PROTOCOL+8] # EFI_LOADED_IMAGE_PROTOCOL_GUID (last 64 bits)
|
||||
push rdx # push last 64 bits onto stack
|
||||
mov rdx, [rip+LOADED_IMAGE_PROTOCOL] # EFI_LOADED_IMAGE_PROTOCOL_GUID (first 64 bits)
|
||||
push rdx # push first 64 bits onto stack
|
||||
mov rdx, rsp # arg2 = &guid
|
||||
push 1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
push 0 # arg5 = NULL
|
||||
mov r9, r15 # arg4 = image_handle
|
||||
mov rcx, r15 # arg1 = image_handle
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [r14+280] # system->boot->open_protocol(image_handle, &guid, &image, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
mov rax, [rsp+64] # get image
|
||||
mov rcx, rax # save image
|
||||
|
||||
# Command line args
|
||||
mov rbx, [rax+56] # options = image->load_options
|
||||
|
||||
loop_options1: # Skip application name
|
||||
add rbx, 2 # ++options
|
||||
mov al, [rbx] # *options
|
||||
cmp al, 0x20 # if *options != ' '
|
||||
jne loop_options1 # then jump
|
||||
|
||||
add rbx, 2 # ++options
|
||||
mov r12, rbx # save input file
|
||||
|
||||
loop_options2: # Skip argv[1]
|
||||
add rbx, 2 # ++options
|
||||
mov al, [rbx] # *options
|
||||
cmp al, 0x20 # if *options != ' '
|
||||
jne loop_options2 # then jump
|
||||
|
||||
mov byte ptr [rbx], 0 # *options = 0
|
||||
add rbx, 2 # ++options
|
||||
mov r13, rbx # save output file
|
||||
|
||||
# Get root file system
|
||||
push rax # allocate stack for rootfs
|
||||
mov r8, rsp # arg3 = &rootfs
|
||||
mov rdx, [rip+SIMPLE_FS_PROTOCOL+8] # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (last 64 bits)
|
||||
push rdx # push last 64 bits onto stack
|
||||
mov rdx, [rip+SIMPLE_FS_PROTOCOL] # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (first 64 bits)
|
||||
push rdx # push first 64 bits onto stack
|
||||
mov rdx, rsp # arg2 = &guid
|
||||
push 1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
push 0 # arg5 = NULL
|
||||
mov r9, r15 # arg4 = image_handle
|
||||
mov rcx, [rcx+24] # arg1 = root_device = image->device
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [r14+280] # system->boot->open_protocol(root_device, &guid, &rootfs, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
mov rcx, [rsp+64] # get rootfs
|
||||
|
||||
# Get root directory
|
||||
push rdx # allocate stack for rootdir
|
||||
mov rdx, rsp # arg2 = &rootdir
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
call [rcx+8] # rootfs->open_volume(rootfs, &rootdir)
|
||||
pop rax # deallocate stack
|
||||
pop rax # deallocate stack
|
||||
pop r14 # save rootdir
|
||||
|
||||
# Open file for reading
|
||||
push rdx # allocate stack for fin
|
||||
mov rdx, rsp # arg2 = &fin
|
||||
push 1 # arg5 = EFI_FILE_READ_ONLY
|
||||
push 1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
pop r9 # arg4 = EFI_FILE_MODE_READ
|
||||
mov r8, r12 # arg3 = in
|
||||
mov rcx, r14 # arg1 = rootdir
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [rcx+8] # rootdir->open()
|
||||
mov rdi, [rsp+40] # get fin
|
||||
|
||||
# Open file for writing
|
||||
push rdx # allocate stack for fout
|
||||
mov rdx, rsp # arg2 = &fout
|
||||
push 0 # arg5 = 0
|
||||
push 7 # to get 0x8000000000000003 we set the rightmost 3 bits
|
||||
pop r9 # and then do right rotation by 1
|
||||
ror r9 # arg4 = EFI_FILE_MODE_CREATE| EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ
|
||||
mov r8, r13 # arg3 = out
|
||||
mov rcx, r14 # arg1 = rootdir
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [rcx+8] # rootdir->open()
|
||||
mov rbx, [rsp+40] # get fout
|
||||
|
||||
mov r15, -1 # Our flag for byte processing
|
||||
mov r14, 0 # temp storage for the sum
|
||||
|
@ -261,8 +258,6 @@ Second_pass_1:
|
|||
jmp Second_pass
|
||||
|
||||
Second_pass_done:
|
||||
ret
|
||||
|
||||
EOF:
|
||||
ret
|
||||
ascii_num:
|
||||
|
@ -307,6 +302,7 @@ Read_byte:
|
|||
mov rcx, rdi # arg1 = fin
|
||||
push 1 # size = 1
|
||||
mov rdx, rsp # arg2 = &size
|
||||
xor esi, esi # zero rsi
|
||||
push rsi # allocate stack
|
||||
mov r8, rsp # arg3 = &input
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
|
@ -345,7 +341,7 @@ print_chars:
|
|||
Get_table_target:
|
||||
call Read_byte # Get single char label
|
||||
shl rax, 3 # Each label in table takes 8 bytes to store
|
||||
mov rcx, [rip+table] # Get table
|
||||
mov rcx, [rsp+24] # Get table
|
||||
add rax, rcx # Calculate offset
|
||||
ret
|
||||
|
||||
|
@ -364,16 +360,37 @@ StorePointer:
|
|||
ret
|
||||
|
||||
Done:
|
||||
pop rcx # restore table
|
||||
pop rsi # restore rootdir
|
||||
pop r15 # restore image_handle
|
||||
pop r14 # restore system->boot
|
||||
pop r13 # restore root_device
|
||||
|
||||
# Free pool
|
||||
mov rcx, [rip+table] # arg1 = table
|
||||
# arg1 = table
|
||||
push rax # allocate shadow stack space for UEFI function
|
||||
mov r14, [rip+SystemBoot] # get system->boot
|
||||
call [r14+72] # system->boot->free_pool(table)
|
||||
|
||||
mov rcx, rdi # arg1 = fin
|
||||
call [rcx+16] # fin->close()
|
||||
mov rcx, rbx # arg1 = fout
|
||||
call [rcx+16] # fout->close()
|
||||
mov rcx, rsi # arg1 = rootdir
|
||||
call [rcx+16] # rootdir->close()
|
||||
|
||||
mov r8, r15 # arg3 = image_handle
|
||||
lea rdx, [rip+SIMPLE_FS_PROTOCOL] # guid = &SIMPLE_FS_PROTOCOL
|
||||
mov rcx, r13 # arg1 = root_device
|
||||
xor r9, r9 # arg4 = NULL
|
||||
sub rsp, 32 # allocate shadow stack space for UEFI function
|
||||
call [r14+288] # system->boot->close_protocol(root_device, &guid, image_handle, 0)
|
||||
|
||||
mov r8, r15 # arg3 = image_handle
|
||||
lea rdx, [rip+LOADED_IMAGE_PROTOCOL] # guid = &LOADED_IMAGE_PROTOCOL
|
||||
mov rcx, r8 # arg1 = image_handle
|
||||
xor r9, r9 # arg4 = NULL
|
||||
call [r14+288] # system->boot->close_protocol(image_handle, &guid, image_handle, 0)
|
||||
|
||||
abort: # used for debugging only
|
||||
mov rsp, rbp # restore stack
|
||||
ret # return to UEFI
|
||||
|
@ -391,9 +408,3 @@ SIMPLE_FS_PROTOCOL:
|
|||
.short 0x6459
|
||||
.short 0x11d2
|
||||
.byte 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b
|
||||
|
||||
table:
|
||||
.long 0, 0
|
||||
|
||||
SystemBoot:
|
||||
.long 0, 0
|
||||
|
|
|
@ -6,374 +6,387 @@
|
|||
|
||||
# efi_main(void *image_handle, struct efi_system_table *system)
|
||||
:_start
|
||||
4889E5 ; COPY_RSP_to_RBP # save stack pointer
|
||||
4989CF ; COPY_RCX_to_R15 # save image_handle
|
||||
4C8B72 60 ; LOAD64_into_R14_from_Address_RDX_Immediate8 !96 # system->boot
|
||||
4C8935 %SystemBoot ; STORE64_rel_R14 %SystemBoot # save system->boot
|
||||
|
||||
# Allocate pool for single-character label table
|
||||
52 ; PUSH_RDX # allocate stack for table
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &table
|
||||
31D2 ; XOR_EDX_EDX # zero rdx
|
||||
B6 08 ; LOADI8_DH !0x8 # arg2 = 256 * 8 = 2048 = 0x800
|
||||
6A 02 ; PUSH !2
|
||||
59 ; POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
4883EC 18 ; SUBI8_RSP !24 # allocate shadow stack space for UEFI
|
||||
41FF56 40 ; CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 2048, &table)
|
||||
4883C4 18 ; ADDI8_RSP !24 # deallocate stack
|
||||
58 ; POP_RAX # get table
|
||||
488905 %table ; STORE64_rel_RAX %table # save table
|
||||
4889E5 ; mov_rbp,rsp # save stack pointer
|
||||
4989CF ; mov_r15,rcx # save image_handle
|
||||
4C8B72 60 ; mov_r14,[rdx+BYTE] !96 # system->boot
|
||||
|
||||
# Open Loaded Image protocol
|
||||
50 ; PUSH_RAX # allocate stack for image
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &image
|
||||
488B15 %LOADED_IMAGE_PROTOCOL_8 ; LOAD64_rel_RDX !LOADED_IMAGE_PROTOCOL_8 # EFI_LOADED_IMAGE_PROTOCOL_GUID (last 64 bits)
|
||||
52 ; PUSH_RDX # push last 64 bits onto stack
|
||||
488B15 %LOADED_IMAGE_PROTOCOL ; LOAD64_rel_RDX !LOADED_IMAGE_PROTOCOL # EFI_LOADED_IMAGE_PROTOCOL_GUID (first 64 bits)
|
||||
52 ; PUSH_RDX # push first 64 bits onto stack
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &guid
|
||||
6A 01 ; PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; PUSH !0 # arg5 = NULL
|
||||
4D89F9 ; COPY_R15_to_R9 # arg4 = image_handle
|
||||
4C89F9 ; COPY_R15_to_RCX # arg1 = image_handle
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; CALL_R14_Immediate32 %280 # system->boot->open_protocol(image_handle, &guid, &image, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
488B4424 40 ; LOAD64_into_RAX_from_Address_RSP_Immediate8 !64 # get_image
|
||||
4889C1 ; COPY_RCX_to_RAX # save image
|
||||
|
||||
# Command line args
|
||||
488B58 38 ; LOAD64_into_RBX_from_Address_RAX_Immediate8 !56 # options = image->load_options
|
||||
|
||||
:loop_options1 # Skip application name
|
||||
4883C3 02 ; ADDI8_RBX !2 # ++options
|
||||
8A03 ; LOAD8_AL_from_Address_RBX # *options
|
||||
3C 20 ; CMPI8_AL !0x20 # if *options != ' '
|
||||
75 !loop_options1 ; JNE8 !loop_options1 # then jump
|
||||
|
||||
4883C3 02 ; ADDI8_RBX !2 # ++options
|
||||
4989DC ; COPY_RBX_to_R12 # save input file
|
||||
|
||||
:loop_options2 # Skip argv[1]
|
||||
4883C3 02 ; ADDI8_RBX !2 # ++options
|
||||
8A03 ; LOAD8_AL_from_Address_RBX # *options
|
||||
3C 20 ; CMPI8_AL !0x20 # if *options != ' '
|
||||
75 !loop_options2 ; JNE8 !loop_options2 # then jump
|
||||
|
||||
C603 00 ; STOREI8_into_Address_RBX !0 # *options = 0;
|
||||
4883C3 02 ; ADDI8_RBX !2 # ++options
|
||||
4989DD ; COPY_RBX_to_R13 # save output file
|
||||
4D89F9 ; mov_r9,r15 # arg4 = image_handle
|
||||
488D15 %LOADED_IMAGE_PROTOCOL ; lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
4C89C9 ; mov_rcx,r9 # arg1 = image_handle
|
||||
50 ; push_rax # allocate stack for image
|
||||
4989E0 ; mov_r8,rsp # arg3 = &image
|
||||
6A 01 ; push !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; push !0 # arg5 = NULL
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; call_[r14+DWORD] %280 # system->boot->open_protocol(image_handle, &guid, &image, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
488B7C24 30 ; mov_rdi,[rsp+BYTE] !48 # save image
|
||||
|
||||
# Get root file system
|
||||
50 ; PUSH_RAX # allocate stack for rootfs
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &rootfs
|
||||
488B15 %SIMPLE_FS_PROTOCOL_8 ; LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL_8 # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (last 64 bits)
|
||||
52 ; PUSH_RDX # push last 64 bits onto stack
|
||||
488B15 %SIMPLE_FS_PROTOCOL ; LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (first 64 bits)
|
||||
52 ; PUSH_RDX # push first 64 bits onto stack
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &guid
|
||||
6A 01 ; PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; PUSH !0 # arg5 = NULL
|
||||
4D89F9 ; COPY_R15_to_R9 # arg4 = image_handle
|
||||
488B49 18 ; LOAD64_into_RCX_from_Address_RCX_Immediate8 !24 # arg1 = root_device = image->device
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; CALL_R14_Immediate32 %280 # system->boot->open_protocol(root_device, &guid, &rootfs, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
488B4C24 40 ; LOAD64_into_RCX_from_Address_RSP_Immediate8 !64 # get rootfs
|
||||
4D89F9 ; mov_r9,r15 # arg4 = image_handle
|
||||
488D15 %SIMPLE_FS_PROTOCOL ; lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
488B4F 18 ; mov_rcx,[rdi+BYTE] !24 # arg1 = root_device = image->device
|
||||
4989CD ; mov_r13,rcx # save root_device
|
||||
50 ; push_rax # allocate stack for rootfs
|
||||
4989E0 ; mov_r8,rsp # arg3 = &rootfs
|
||||
6A 01 ; push !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; push !0 # arg5 = NULL
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; call_[r14+DWORD] %280 # system->boot->open_protocol(root_device, &guid, &rootfs, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
488B4C24 30 ; mov_rcx,[rsp+BYTE] !48 # get rootfs
|
||||
|
||||
# Get root directory
|
||||
52 ; PUSH_RDX # allocate stack for rootdir
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &rootdir
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # rootfs->open_volume(rootfs, &rootdir)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
415E ; POP_R14 # save rootdir
|
||||
50 ; push_rax # allocate stack for rootdir
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &rootdir
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # rootfs->open_volume(rootfs, &rootdir)
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
5E ; pop_rsi # save rootdir
|
||||
|
||||
# Push command line arguments onto stack
|
||||
488B5F 38 ; mov_rbx,[rdi+BYTE] !56 # options = image->load_options
|
||||
4889DA ; mov_rdx,rbx # save beginning of load_options
|
||||
48035F 30 ; add_rbx,[rdi+BYTE] !48 # go to the end of load_options
|
||||
6A 00 ; push !0 # Save end of arguments (NULL) onto stack
|
||||
:loop_options
|
||||
4839D3 ; cmp_rbx,rdx # Check if we are done
|
||||
74 !loop_options_done ; je8 !loop_options_done # We are done
|
||||
4883EB 02 ; sub_rbx, !2 # --options
|
||||
8A03 ; mov_al,[rbx] # *options
|
||||
3C 20 ; cmp_al, !0x20 # if *options != ' '
|
||||
75 !loop_options ; jne8 !loop_options # then continue looping
|
||||
C603 00 ; mov_[rbx], !0 # zero it
|
||||
4883C3 02 ; add_rbx, !2 # ++options
|
||||
53 ; push_rbx # push another argument onto stack
|
||||
EB !loop_options ; jmp8 !loop_options # next argument
|
||||
:loop_options_done
|
||||
|
||||
# Open file for reading
|
||||
52 ; PUSH_RDX # allocate stack for fin
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &fin
|
||||
6A 01 ; PUSH !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
6A 01 ; PUSH !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
4159 ; POP_R9 # arg4 = EFI_FILE_MODE_READ
|
||||
4D89E0 ; COPY_R12_to_R8 # arg3 = in
|
||||
4C89F1 ; COPY_R14_to_RCX # arg1 = rootdir
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # rootdir->open()
|
||||
488B7C24 28 ; LOAD64_into_RDI_from_Address_RSP_Immediate8 !40 # get fin
|
||||
4158 ; pop_r8 # arg3 = in
|
||||
52 ; push_rdx # allocate stack for fin
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &fin
|
||||
6A 01 ; push !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
6A 01 ; push !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
4159 ; pop_r9 # arg4 = EFI_FILE_MODE_READ
|
||||
4889F1 ; mov_rcx,rsi # arg1 = rootdir
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # rootdir->open()
|
||||
4883C4 28 ; add_rsp, !40 # deallocate stack
|
||||
5F ; pop_rdi # get fin
|
||||
|
||||
# Open file for writing
|
||||
52 ; PUSH_RDX # allocate stack for fout
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &fout
|
||||
6A 00 ; PUSH !0 # arg5 = 0
|
||||
6A 07 ; PUSH !7 # to get 0x8000000000000003 we set the rightmost 3 bits
|
||||
4159 ; POP_R9 # and then do right rotation by 1
|
||||
49D1C9 ; ROR_R9 # arg4 = EFI_FILE_MODE_CREATE| EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ
|
||||
4D89E8 ; COPY_R13_to_R8 # arg3 = out
|
||||
4C89F1 ; COPY_R14_to_RCX # arg1 = rootdir
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # rootdir->open()
|
||||
488B5C24 28 ; LOAD64_into_RBX_from_Address_RSP_Immediate8 !40 # get fout
|
||||
4158 ; pop_r8 # arg3 = out
|
||||
52 ; push_rdx # allocate stack for fout
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &fout
|
||||
6A 00 ; push !0 # arg5 = 0
|
||||
6A 07 ; push !7 # to get 0x8000000000000003 we set the rightmost 3 bits
|
||||
4159 ; pop_r9 # and then do right rotation by 1
|
||||
49D1C9 ; ror_r9 # arg4 = EFI_FILE_MODE_CREATE| EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ
|
||||
4889F1 ; mov_rcx,rsi # arg1 = rootdir
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # rootdir->open()
|
||||
4883C4 28 ; add_rsp, !40 # deallocate stack
|
||||
5B ; pop_rbx # get fout
|
||||
|
||||
49C7C7 FFFFFFFF ; LOADI32_R15 %-1 # Our flag for byte processing
|
||||
49C7C6 00000000 ; LOADI32_R14 %0 # temp storage for the sum
|
||||
49C7C5 00000000 ; LOADI32_R13 %0 # Our starting IP
|
||||
E8 %First_pass ; CALLI32 %First_pass # Process it
|
||||
# Save variables that are needed for cleanup
|
||||
4155 ; push_r13 # save root_device
|
||||
4156 ; push_r14 # save system->boot
|
||||
4157 ; push_r15 # save image_handle
|
||||
56 ; push_rsi # save rootdir
|
||||
|
||||
# Allocate pool for single-character label table
|
||||
# pointer to table will be stored at the top of the stack
|
||||
52 ; push_rdx # allocate stack for table
|
||||
4989E0 ; mov_r8,rsp # arg3 = &table
|
||||
31D2 ; xor_edx,edx # zero rdx
|
||||
B6 08 ; mov_dh, !0x8 # arg2 = 256 * 8 = 2048 = 0x800
|
||||
6A 02 ; push !2
|
||||
59 ; pop_rcx # arg1 = EFI_LOADER_DATA
|
||||
4883EC 18 ; sub_rsp, !24 # allocate shadow stack space for UEFI
|
||||
41FF56 40 ; call_[r14+BYTE] !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 2048, &table)
|
||||
4883C4 18 ; add_rsp, !24 # deallocate stack
|
||||
|
||||
49C7C7 FFFFFFFF ; mov_r15, %-1 # Our flag for byte processing
|
||||
49C7C6 00000000 ; mov_r14, %0 # temp storage for the sum
|
||||
49C7C5 00000000 ; mov_r13, %0 # Our starting IP
|
||||
E8 %First_pass ; call %First_pass # Process it
|
||||
|
||||
# rewind input file
|
||||
4889F9 ; COPY_RDI_to_RCX # Using our input file
|
||||
31D2 ; XOR_EDX_EDX # Offset Zero
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 38 ; CALL_RCX_Immediate8 !56 # fin->set_position(fin, 0)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
4889F9 ; mov_rcx,rdi # Using our input file
|
||||
31D2 ; xor_edx,edx # Offset Zero
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
FF51 38 ; call_[rcx+BYTE] !56 # fin->set_position(fin, 0)
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
|
||||
49C7C7 FFFFFFFF ; LOADI32_R15 %-1 # Our flag for byte processing
|
||||
49C7C6 00000000 ; LOADI32_R14 %0 # temp storage for the sum
|
||||
49C7C5 00000000 ; LOADI32_R13 %0 # Our starting IP
|
||||
E8 %Second_pass ; CALLI32 %Second_pass # Process it
|
||||
49C7C7 FFFFFFFF ; mov_r15, %-1 # Our flag for byte processing
|
||||
49C7C6 00000000 ; mov_r14, %0 # temp storage for the sum
|
||||
49C7C5 00000000 ; mov_r13, %0 # Our starting IP
|
||||
E8 %Second_pass ; call %Second_pass # Process it
|
||||
|
||||
E9 %Done ; JMP32 %Done
|
||||
E9 %Done ; jmp %Done
|
||||
|
||||
:First_pass
|
||||
E8 %Read_byte ; CALLI32 %Read_byte
|
||||
E8 %Read_byte ; call %Read_byte
|
||||
|
||||
# Deal with EOF
|
||||
483D FCFFFFFF ; CMPI32_RAX %-4
|
||||
0F84 %First_pass_done ; JE32 %First_pass_done
|
||||
483D FCFFFFFF ; cmp_rax, %-4
|
||||
0F84 %First_pass_done ; je %First_pass_done
|
||||
|
||||
# Check for :
|
||||
483D 3A000000 ; CMPI32_RAX %0x3a
|
||||
0F85 %First_pass_0 ; JNE32 %First_pass_0
|
||||
483D 3A000000 ; cmp_rax, %0x3a
|
||||
0F85 %First_pass_0 ; jne %First_pass_0
|
||||
|
||||
# Deal with label
|
||||
E8 %StoreLabel ; CALLI32 %StoreLabel
|
||||
E8 %StoreLabel ; call %StoreLabel
|
||||
|
||||
:First_pass_0
|
||||
# Check for %
|
||||
483D 25000000 ; CMPI32_RAX %0x25
|
||||
0F84 %First_pass_pointer ; JE32 %First_pass_pointer
|
||||
483D 25000000 ; cmp_rax, %0x25
|
||||
0F84 %First_pass_pointer ; je %First_pass_pointer
|
||||
|
||||
# Deal with everything else
|
||||
E8 %hex ; CALLI32 %hex # Process our char
|
||||
E8 %hex ; call %hex # Process our char
|
||||
|
||||
# Deal with EOF
|
||||
483D FCFFFFFF ; CMPI32_RAX %-4
|
||||
0F84 %First_pass_done ; JE32 %First_pass_done
|
||||
483D FCFFFFFF ; cmp_rax, %-4
|
||||
0F84 %First_pass_done ; je %First_pass_done
|
||||
|
||||
# deal with -1 values
|
||||
483D 00000000 ; CMPI32_RAX %0
|
||||
0F8C %First_pass ; JL32 %First_pass
|
||||
483D 00000000 ; cmp_rax, %0
|
||||
0F8C %First_pass ; jl %First_pass
|
||||
|
||||
# deal with toggle
|
||||
4981FF 00000000 ; CMPI32_R15 %0
|
||||
0F84 %First_pass_1 ; JE32 %First_pass_1
|
||||
4981C5 01000000 ; ADDI32_to_R13 %1 # Increment IP
|
||||
4981FF 00000000 ; cmp_r15, %0
|
||||
0F84 %First_pass_1 ; je %First_pass_1
|
||||
4981C5 01000000 ; add_r13, %1 # Increment IP
|
||||
|
||||
:First_pass_1
|
||||
49F7D7 ; NOT_R15
|
||||
E9 %First_pass ; JMP32 %First_pass
|
||||
49F7D7 ; not_r15
|
||||
E9 %First_pass ; jmp %First_pass
|
||||
|
||||
:First_pass_pointer
|
||||
# Deal with Pointer to label
|
||||
E8 %Read_byte ; CALLI32 %Read_byte # Drop the char
|
||||
4981C5 04000000 ; ADDI32_to_R13 %4 # Increment IP
|
||||
E9 %First_pass ; JMP32 %First_pass # Loop again
|
||||
E8 %Read_byte ; call %Read_byte # Drop the char
|
||||
4981C5 04000000 ; add_r13, %4 # Increment IP
|
||||
E9 %First_pass ; jmp %First_pass # Loop again
|
||||
|
||||
:First_pass_done
|
||||
C3 ; RET
|
||||
C3 ; ret
|
||||
|
||||
:hex
|
||||
# deal with EOF
|
||||
483D FCFFFFFF ; CMPI32_RAX %-4
|
||||
0F84 %EOF ; JE32 %EOF
|
||||
483D FCFFFFFF ; cmp_rax, %-4
|
||||
0F84 %EOF ; je %EOF
|
||||
# deal with line comments starting with #
|
||||
483D 23000000 ; CMPI32_RAX %0x23
|
||||
0F84 %ascii_comment ; JE32 %ascii_comment
|
||||
483D 23000000 ; cmp_rax, %0x23
|
||||
0F84 %ascii_comment ; je %ascii_comment
|
||||
# deal with line comments starting with ;
|
||||
483D 3B000000 ; CMPI32_RAX %0x3b
|
||||
0F84 %ascii_comment ; JE32 %ascii_comment
|
||||
483D 3B000000 ; cmp_rax, %0x3b
|
||||
0F84 %ascii_comment ; je %ascii_comment
|
||||
# deal all ascii less than 0
|
||||
483D 30000000 ; CMPI32_RAX %0x30
|
||||
0F8C %ascii_other ; JL32 %ascii_other
|
||||
483D 30000000 ; cmp_rax, %0x30
|
||||
0F8C %ascii_other ; jl %ascii_other
|
||||
# deal with 0-9
|
||||
483D 3A000000 ; CMPI32_RAX %0x3a
|
||||
0F8C %ascii_num ; JL32 %ascii_num
|
||||
483D 3A000000 ; cmp_rax, %0x3a
|
||||
0F8C %ascii_num ; jl %ascii_num
|
||||
# deal with all ascii less than A
|
||||
483D 41000000 ; CMPI32_RAX %0x41
|
||||
0F8C %ascii_other ; JL32 %ascii_other
|
||||
483D 41000000 ; cmp_rax, %0x41
|
||||
0F8C %ascii_other ; jl %ascii_other
|
||||
# deal with A-F
|
||||
483D 47000000 ; CMPI32_RAX %0x47
|
||||
0F8C %ascii_high ; JL32 %ascii_high
|
||||
483D 47000000 ; cmp_rax, %0x47
|
||||
0F8C %ascii_high ; jl %ascii_high
|
||||
# deal with all ascii less than a
|
||||
483D 61000000 ; CMPI32_RAX %0x61
|
||||
0F8C %ascii_other ; JL32 %ascii_other
|
||||
483D 61000000 ; cmp_rax, %0x61
|
||||
0F8C %ascii_other ; jl %ascii_other
|
||||
# deal with a-f
|
||||
483D 67000000 ; CMPI32_RAX %0x67
|
||||
0F8C %ascii_low ; JL32 %ascii_low
|
||||
483D 67000000 ; cmp_rax, %0x67
|
||||
0F8C %ascii_low ; jl %ascii_low
|
||||
# The rest that remains needs to be ignored
|
||||
E9 %ascii_other ; JMP32 %ascii_other
|
||||
E9 %ascii_other ; jmp %ascii_other
|
||||
|
||||
:Second_pass
|
||||
E8 %Read_byte ; CALLI32 %Read_byte
|
||||
E8 %Read_byte ; call %Read_byte
|
||||
|
||||
# Deal with EOF
|
||||
483D FCFFFFFF ; CMPI32_RAX %-4
|
||||
0F84 %Second_pass_done ; JE32 %Second_pass_done
|
||||
483D FCFFFFFF ; cmp_rax, %-4
|
||||
0F84 %Second_pass_done ; je %Second_pass_done
|
||||
|
||||
# Simply drop the label
|
||||
483D 3A000000 ; CMPI32_RAX %0x3a
|
||||
0F85 %Second_pass_0 ; JNE32 %Second_pass_0
|
||||
483D 3A000000 ; cmp_rax, %0x3a
|
||||
0F85 %Second_pass_0 ; jne %Second_pass_0
|
||||
|
||||
E8 %Read_byte ; CALLI32 %Read_byte
|
||||
E9 %Second_pass ; JMP32 %Second_pass
|
||||
E8 %Read_byte ; call %Read_byte
|
||||
E9 %Second_pass ; jmp %Second_pass
|
||||
|
||||
:Second_pass_0
|
||||
# Deal with % pointer
|
||||
483D 25000000 ; CMPI32_RAX %0x25
|
||||
0F85 %Second_pass_1 ; JNE32 %Second_pass_1
|
||||
483D 25000000 ; cmp_rax, %0x25
|
||||
0F85 %Second_pass_1 ; jne %Second_pass_1
|
||||
|
||||
E8 %StorePointer ; CALLI32 %StorePointer
|
||||
E9 %Second_pass ; JMP32 %Second_pass
|
||||
E8 %StorePointer ; call %StorePointer
|
||||
E9 %Second_pass ; jmp %Second_pass
|
||||
|
||||
:Second_pass_1
|
||||
# Deal with everything else
|
||||
E8 %hex ; CALLI32 %hex # Process our char
|
||||
E8 %hex ; call %hex # Process our char
|
||||
|
||||
# Deal with EOF
|
||||
483D FCFFFFFF ; CMPI32_RAX %-4
|
||||
0F84 %Second_pass_done ; JE32 %Second_pass_done
|
||||
483D FCFFFFFF ; cmp_rax, %-4
|
||||
0F84 %Second_pass_done ; je %Second_pass_done
|
||||
|
||||
# deal with -1 values
|
||||
483D 00000000 ; CMPI32_RAX %0
|
||||
0F8C %Second_pass ; JL32 %Second_pass
|
||||
483D 00000000 ; cmp_rax, %0
|
||||
0F8C %Second_pass ; jl %Second_pass
|
||||
|
||||
# deal with toggle
|
||||
4981FF 00000000 ; CMPI32_R15 %0
|
||||
0F84 %print ; JE32 %print
|
||||
4981FF 00000000 ; cmp_r15, %0
|
||||
0F84 %print ; je %print
|
||||
|
||||
# process first byte of pair
|
||||
4989C6 ; COPY_RAX_to_R14
|
||||
49C7C7 00000000 ; LOADI32_R15 %0
|
||||
E9 %Second_pass ; JMP32 %Second_pass
|
||||
4989C6 ; mov_r14,rax
|
||||
49C7C7 00000000 ; mov_r15, %0
|
||||
E9 %Second_pass ; jmp %Second_pass
|
||||
|
||||
:Second_pass_done
|
||||
C3 ; RET
|
||||
|
||||
:EOF
|
||||
C3 ; RET
|
||||
C3 ; ret
|
||||
:ascii_num
|
||||
4883E8 30 ; SUBI8_from_RAX !0x30
|
||||
C3 ; RET
|
||||
4883E8 30 ; sub_rax, !0x30
|
||||
C3 ; ret
|
||||
:ascii_low
|
||||
4883E8 57 ; SUBI8_from_RAX !0x57
|
||||
C3 ; RET
|
||||
4883E8 57 ; sub_rax, !0x57
|
||||
C3 ; ret
|
||||
:ascii_high
|
||||
4883E8 37 ; SUBI8_from_RAX !0x37
|
||||
C3 ; RET
|
||||
4883E8 37 ; sub_rax, !0x37
|
||||
C3 ; ret
|
||||
:ascii_other
|
||||
48C7C0 FFFFFFFF ; LOADI32_RAX %-1
|
||||
C3 ; RET
|
||||
48C7C0 FFFFFFFF ; mov_rax, %-1
|
||||
C3 ; ret
|
||||
:ascii_comment
|
||||
E8 %Read_byte ; CALLI32 %Read_byte
|
||||
483D 0D000000 ; CMPI32_RAX %0xd
|
||||
0F84 %ascii_comment_cr ; JE32 %ascii_comment_cr
|
||||
483D 0A000000 ; CMPI32_RAX %0xa
|
||||
0F85 %ascii_comment ; JNE32 %ascii_comment
|
||||
E8 %Read_byte ; call %Read_byte
|
||||
483D 0D000000 ; cmp_rax, %0xd
|
||||
0F84 %ascii_comment_cr ; je %ascii_comment_cr
|
||||
483D 0A000000 ; cmp_rax, %0xa
|
||||
0F85 %ascii_comment ; jne %ascii_comment
|
||||
:ascii_comment_cr
|
||||
48C7C0 FFFFFFFF ; LOADI32_RAX %-1
|
||||
C3 ; RET
|
||||
48C7C0 FFFFFFFF ; mov_rax, %-1
|
||||
C3 ; ret
|
||||
|
||||
# process second byte of pair
|
||||
:print
|
||||
# update the sum and store in output
|
||||
49C1E6 04 ; SHL8_R14 !4
|
||||
4C01F0 ; ADD_R14_to_RAX
|
||||
49C1E6 04 ; shl_r14, !4
|
||||
4C01F0 ; add_rax,r14
|
||||
|
||||
# flip the toggle
|
||||
49F7D7 ; NOT_R15 # R15 = -1
|
||||
49F7D7 ; not_r15 # R15 = -1
|
||||
|
||||
48C7C2 01000000 ; LOADI32_RDX %1 # set the size of chars we want
|
||||
E8 %print_chars ; CALLI32 %print_chars
|
||||
48C7C2 01000000 ; mov_rdx, %1 # set the size of chars we want
|
||||
E8 %print_chars ; call %print_chars
|
||||
|
||||
4981C5 01000000 ; ADDI32_to_R13 %1 # Increment IP
|
||||
E9 %Second_pass ; JMP32 %Second_pass
|
||||
4981C5 01000000 ; add_r13, %1 # Increment IP
|
||||
E9 %Second_pass ; jmp %Second_pass
|
||||
|
||||
|
||||
:Read_byte
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = fin
|
||||
6A 01 ; PUSH !1 # size = 1
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &size
|
||||
56 ; PUSH_RSI # allocate stack
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &input
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 20 ; CALL_RCX_Immediate8 !32 # fin->read()
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # save input to rax
|
||||
5E ; POP_RSI # save size to rsi
|
||||
4889F9 ; mov_rcx,rdi # arg1 = fin
|
||||
6A 01 ; push !1 # size = 1
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &size
|
||||
31F6 ; xor_esi,esi # zero rsi
|
||||
56 ; push_rsi # allocate stack
|
||||
4989E0 ; mov_r8,rsp # arg3 = &input
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
FF51 20 ; call_[rcx+BYTE] !32 # fin->read()
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # save input to rax
|
||||
5E ; pop_rsi # save size to rsi
|
||||
|
||||
# If the file ended (0 bytes read) return EOF
|
||||
85F6 ; TEST_ESI_ESI # if size = 0
|
||||
75 !Read_byte_1 ; JNE8 !Read_byte_1
|
||||
48C7C0 FCFFFFFF ; LOADI32_RAX %-4 # Put EOF in rax
|
||||
85F6 ; test_esi,esi # if size = 0
|
||||
75 !Read_byte_1 ; jne8 !Read_byte_1
|
||||
48C7C0 FCFFFFFF ; mov_rax, %-4 # Put EOF in rax
|
||||
|
||||
:Read_byte_1
|
||||
C3 ; RET # return
|
||||
C3 ; ret # return
|
||||
|
||||
# Writes bytes stored in rax
|
||||
:print_chars
|
||||
4889D9 ; COPY_RBX_to_RCX # arg1 = fout
|
||||
52 ; PUSH_RDX # set size
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &size
|
||||
50 ; PUSH_RAX # allocate stack
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &output
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 28 ; CALL_RCX_Immediate8 !40 # fout->write()
|
||||
4883C4 28 ; ADDI8_RSP !40 # deallocate stack
|
||||
4889D9 ; mov_rcx,rbx # arg1 = fout
|
||||
52 ; push_rdx # set size
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &size
|
||||
50 ; push_rax # allocate stack
|
||||
4989E0 ; mov_r8,rsp # arg3 = &output
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
FF51 28 ; call_[rcx+BYTE] !40 # fout->write()
|
||||
4883C4 28 ; add_rsp, !40 # deallocate stack
|
||||
|
||||
C3 ; RET # return
|
||||
C3 ; ret # return
|
||||
|
||||
:Get_table_target
|
||||
E8 %Read_byte ; CALLI32 %Read_byte # Get single char label
|
||||
48C1E0 03 ; SHL8_RAX !3 # Each label in table takes 8 bytes to store
|
||||
488B0D %table ; LOAD64_rel_RCX %table # Get table
|
||||
4801C8 ; ADD_RCX_to_RAX # Calculate offset
|
||||
C3 ; RET
|
||||
E8 %Read_byte ; call %Read_byte # Get single char label
|
||||
48C1E0 03 ; shl_rax, !3 # Each label in table takes 8 bytes to store
|
||||
488B4C24 18 ; mov_rcx,[rsp+BYTE] !24 # Get table
|
||||
4801C8 ; add_rax,rcx # Calculate offset
|
||||
C3 ; ret
|
||||
|
||||
:StoreLabel
|
||||
E8 %Get_table_target ; CALLI32 %Get_table_target
|
||||
4C8928 ; STORE32_R13_to_Address_in_RAX # Write out pointer to table
|
||||
C3 ; RET
|
||||
E8 %Get_table_target ; call %Get_table_target
|
||||
4C8928 ; mov_[rax],r13 # Write out pointer to table
|
||||
C3 ; ret
|
||||
|
||||
:StorePointer
|
||||
4981C5 04000000 ; ADDI32_to_R13 %4 # Increment IP
|
||||
E8 %Get_table_target ; CALLI32 %Get_table_target # Get address of pointer
|
||||
678B00 ; LOAD32_Address_in_RAX_into_RAX # Get pointer
|
||||
4C29E8 ; SUB_R13_from_RAX # target - ip
|
||||
48C7C2 04000000 ; LOADI32_RDX %4 # set the size of chars we want
|
||||
E8 %print_chars ; CALLI32 %print_chars
|
||||
C3 ; RET
|
||||
4981C5 04000000 ; add_r13, %4 # Increment IP
|
||||
E8 %Get_table_target ; call %Get_table_target # Get address of pointer
|
||||
488B00 ; mov_rax,[rax] # Get pointer
|
||||
4C29E8 ; sub_rax,r13 # target - ip
|
||||
48C7C2 04000000 ; mov_rdx, %4 # set the size of chars we want
|
||||
E8 %print_chars ; call %print_chars
|
||||
C3 ; ret
|
||||
|
||||
:Done
|
||||
59 ; pop_rcx # restore table
|
||||
5E ; pop_rsi # restore rootdir
|
||||
415F ; pop_r15 # restore image_handle
|
||||
415E ; pop_r14 # restore system->boot
|
||||
415D ; pop_r13 # restore root_device
|
||||
|
||||
# Free pool
|
||||
488B0D %table ; LOAD64_rel_RCX %table # arg1 = table
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
4C8B35 %SystemBoot ; LOAD64_rel_R14 %SystemBoot # get system->boot
|
||||
41FF56 48 ; CALL_R14_Immediate8 !72 # system->boot->free_pool(table)
|
||||
# arg1 = table
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; call_[r14+BYTE] !72 # system->boot->free_pool(table)
|
||||
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = fin
|
||||
FF51 10 ; CALL_RCX_Immediate8 !16 # fin->close()
|
||||
4889D9 ; COPY_RBX_to_RCX # arg1 = fout
|
||||
FF51 10 ; CALL_RCX_Immediate8 !16 # fout->close()
|
||||
4889F9 ; mov_rcx,rdi # arg1 = fin
|
||||
FF51 10 ; call_[rcx+BYTE] !16 # fin->close()
|
||||
4889D9 ; mov_rcx,rbx # arg1 = fout
|
||||
FF51 10 ; call_[rcx+BYTE] !16 # fout->close()
|
||||
4889F1 ; mov_rcx,rsi # arg1 = rootdir
|
||||
FF51 10 ; call_[rcx+BYTE] !16 # rootdir->close()
|
||||
|
||||
4889EC ; COPY_RBP_to_RSP # restore stack
|
||||
C3 ; RET # return to UEFI
|
||||
4D89F8 ; mov_r8,r15 # arg3 = image_handle
|
||||
488D15 %SIMPLE_FS_PROTOCOL ; lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
4C89E9 ; mov_rcx,r13 # arg1 = root_device
|
||||
4D31C9 ; xor_r9,r9 # arg4 = NULL
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 20010000 ; call_[r14+DWORD] %288 # system->boot->close_protocol(root_device, &guid, image_handle, 0)
|
||||
|
||||
4D89F8 ; mov_r8,r15 # arg3 = image_handle
|
||||
488D15 %LOADED_IMAGE_PROTOCOL ; lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
4C89C1 ; mov_rcx,r8 # arg1 = image_handle
|
||||
4D31C9 ; xor_r9,r9 # arg4 = NULL
|
||||
41FF96 20010000 ; call_[r14+DWORD] %288 # system->boot->close_protocol(image_handle, &guid, image_handle, 0)
|
||||
|
||||
4889EC ; mov_rsp,rbp # restore stack
|
||||
C3 ; ret # return to UEFI
|
||||
|
||||
|
||||
# Protocol GUIDs
|
||||
|
@ -381,20 +394,12 @@
|
|||
A1 31 1B 5B ; %0x5b1b31a1
|
||||
62 95 ; @0x9562
|
||||
D2 11 ; @0x11d2
|
||||
:LOADED_IMAGE_PROTOCOL_8
|
||||
8E 3F 00 A0 C9 69 72 3B ; !0x8e !0x3f !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
:SIMPLE_FS_PROTOCOL
|
||||
22 5B 4E 96 ; %0x0964e5b22
|
||||
59 64 ; @0x6459
|
||||
D2 11 ; @0x11d2
|
||||
:SIMPLE_FS_PROTOCOL_8
|
||||
8E 39 00 A0 C9 69 72 3B ; !0x8e !0x39 !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
:table
|
||||
00000000 00000000
|
||||
|
||||
:SystemBoot
|
||||
00000000 00000000
|
||||
|
||||
:PE32_end
|
||||
|
|
|
@ -63,6 +63,10 @@ DEFINE mov_al,[rsi] 8A06
|
|||
DEFINE mov_bl,[rdi] 8A1F
|
||||
DEFINE mov_rcx,[rbx] 488B0B
|
||||
DEFINE mov_rcx,[rcx] 488B09
|
||||
DEFINE mov_[rax],r11 4C8918
|
||||
DEFINE mov_[rbx], C603
|
||||
DEFINE mov_[rbx],al 8803
|
||||
DEFINE mov_[rbx],rcx 48890B
|
||||
DEFINE mov_rax,[rcx+BYTE] 488B41
|
||||
DEFINE mov_rbx,[rdi+BYTE] 488B5F
|
||||
DEFINE mov_rcx,[rdi+BYTE] 488B4F
|
||||
|
@ -80,10 +84,6 @@ DEFINE mov_[r11+BYTE],r12 4D8963
|
|||
DEFINE mov_[rip+DWORD],rax 488905
|
||||
DEFINE mov_[rip+DWORD],rcx 48890D
|
||||
DEFINE mov_[rip+DWORD],r14 4C8935
|
||||
DEFINE mov_[rax],r11 4C8918
|
||||
DEFINE mov_[rbx], C603
|
||||
DEFINE mov_[rbx],al 8803
|
||||
DEFINE mov_[rbx],rcx 48890B
|
||||
DEFINE movzx_rax,al 480FB6C0
|
||||
DEFINE movzx_rbx,bl 480FB6DB
|
||||
DEFINE not_r15 49F7D7
|
||||
|
|
|
@ -36,7 +36,7 @@ _start:
|
|||
mov r9, [rip+image_handle] # arg4 = image_handle
|
||||
lea rdx, [rip+SIMPLE_FS_PROTOCOL] # guid = &SIMPLE_FS_PROTOCOL
|
||||
mov rcx, [rdi+24] # arg1 = root_device = image->device
|
||||
mov [rip+root_device], rdi # save root_device
|
||||
mov [rip+root_device], rcx # save root_device
|
||||
call open_protocol # open protocol
|
||||
mov rcx, rax # get rootfs
|
||||
|
||||
|
|
589
amd64/hex1.hex0
589
amd64/hex1.hex0
|
@ -120,9 +120,9 @@ F0 00 # SizeOfOptionalHeader
|
|||
# [0x148]
|
||||
# Start of section headers
|
||||
00 00 00 00 00 00 00 00 ; Name of the section (empty) but could set to ".text"
|
||||
D4 03 00 00 ; VirtualSize
|
||||
CF 03 00 00 ; VirtualSize
|
||||
00 10 00 00 ; VirtualAddress
|
||||
D4 03 00 00 ; SizeOfRawData
|
||||
CF 03 00 00 ; SizeOfRawData
|
||||
70 01 00 00 ; PointerToRawData
|
||||
00 00 00 00 ; PointerToRelocations
|
||||
00 00 00 00 ; PointerToLinenumbers
|
||||
|
@ -134,396 +134,401 @@ D4 03 00 00 ; SizeOfRawData
|
|||
|
||||
# efi_main(void *image_handle, struct efi_system_table *system)
|
||||
# :_start
|
||||
4889E5 ; COPY_RSP_to_RBP # save stack pointer
|
||||
4989CF ; COPY_RCX_to_R15 # save image_handle
|
||||
4C8B72 60 ; LOAD64_into_R14_from_Address_RDX_Immediate8 !96 # system->boot
|
||||
4C8935 BB030000 ; STORE64_rel_R14 %SystemBoot # save system->boot
|
||||
|
||||
# Allocate pool for single-character label table
|
||||
52 ; PUSH_RDX # allocate stack for table
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &table
|
||||
31D2 ; XOR_EDX_EDX # zero rdx
|
||||
B6 08 ; LOADI8_DH !0x8 # arg2 = 256 * 8 = 2048 = 0x800
|
||||
6A 02 ; PUSH !2
|
||||
59 ; POP_RCX # arg1 = EFI_LOADER_DATA
|
||||
4883EC 18 ; SUBI8_RSP !24 # allocate shadow stack space for UEFI
|
||||
41FF56 40 ; CALL_R14_Immediate8 !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 2048, &table)
|
||||
4883C4 18 ; ADDI8_RSP !24 # deallocate stack
|
||||
58 ; POP_RAX # get table
|
||||
488905 94030000 ; STORE64_rel_RAX %table # save table
|
||||
4889E5 ; mov_rbp,rsp # save stack pointer
|
||||
4989CF ; mov_r15,rcx # save image_handle
|
||||
4C8B72 60 ; mov_r14,[rdx+BYTE] !96 # system->boot
|
||||
|
||||
# Open Loaded Image protocol
|
||||
50 ; PUSH_RAX # allocate stack for image
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &image
|
||||
488B15 71030000 ; LOAD64_rel_RDX !LOADED_IMAGE_PROTOCOL_8 # EFI_LOADED_IMAGE_PROTOCOL_GUID (last 64 bits)
|
||||
52 ; PUSH_RDX # push last 64 bits onto stack
|
||||
488B15 61030000 ; LOAD64_rel_RDX !LOADED_IMAGE_PROTOCOL # EFI_LOADED_IMAGE_PROTOCOL_GUID (first 64 bits)
|
||||
52 ; PUSH_RDX # push first 64 bits onto stack
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &guid
|
||||
6A 01 ; PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; PUSH !0 # arg5 = NULL
|
||||
4D89F9 ; COPY_R15_to_R9 # arg4 = image_handle
|
||||
4C89F9 ; COPY_R15_to_RCX # arg1 = image_handle
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; CALL_R14_Immediate32 %280 # system->boot->open_protocol(image_handle, &guid, &image, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
488B4424 40 ; LOAD64_into_RAX_from_Address_RSP_Immediate8 !64 # get_image
|
||||
4889C1 ; COPY_RCX_to_RAX # save image
|
||||
|
||||
# Command line args
|
||||
488B58 38 ; LOAD64_into_RBX_from_Address_RAX_Immediate8 !56 # options = image->load_options
|
||||
|
||||
# :loop_options1 [_start+0x68] # Skip application name
|
||||
4883C3 02 ; ADDI8_RBX !2 # ++options
|
||||
8A03 ; LOAD8_AL_from_Address_RBX # *options
|
||||
3C 20 ; CMPI8_AL !0x20 # if *options != ' '
|
||||
75 F6 ; JNE8 !loop_options1 # then jump
|
||||
|
||||
4883C3 02 ; ADDI8_RBX !2 # ++options
|
||||
4989DC ; COPY_RBX_to_R12 # save input file
|
||||
|
||||
# :loop_options2 [_start+0x79] # Skip argv[1]
|
||||
4883C3 02 ; ADDI8_RBX !2 # ++options
|
||||
8A03 ; LOAD8_AL_from_Address_RBX # *options
|
||||
3C 20 ; CMPI8_AL !0x20 # if *options != ' '
|
||||
75 F6 ; JNE8 !loop_options2 # then jump
|
||||
|
||||
C603 00 ; STOREI8_into_Address_RBX !0 # *options = 0;
|
||||
4883C3 02 ; ADDI8_RBX !2 # ++options
|
||||
4989DD ; COPY_RBX_to_R13 # save output file
|
||||
4D89F9 ; mov_r9,r15 # arg4 = image_handle
|
||||
488D15 9B030000 ; lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
4C89C9 ; mov_rcx,r9 # arg1 = image_handle
|
||||
50 ; push_rax # allocate stack for image
|
||||
4989E0 ; mov_r8,rsp # arg3 = &image
|
||||
6A 01 ; push !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; push !0 # arg5 = NULL
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; call_[r14+DWORD] %280 # system->boot->open_protocol(image_handle, &guid, &image, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
488B7C24 30 ; mov_rdi,[rsp+BYTE] !48 # save image
|
||||
|
||||
# Get root file system
|
||||
50 ; PUSH_RAX # allocate stack for rootfs
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &rootfs
|
||||
488B15 24030000 ; LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL_8 # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (last 64 bits)
|
||||
52 ; PUSH_RDX # push last 64 bits onto stack
|
||||
488B15 14030000 ; LOAD64_rel_RDX %SIMPLE_FS_PROTOCOL # EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID (first 64 bits)
|
||||
52 ; PUSH_RDX # push first 64 bits onto stack
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &guid
|
||||
6A 01 ; PUSH !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; PUSH !0 # arg5 = NULL
|
||||
4D89F9 ; COPY_R15_to_R9 # arg4 = image_handle
|
||||
488B49 18 ; LOAD64_into_RCX_from_Address_RCX_Immediate8 !24 # arg1 = root_device = image->device
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; CALL_R14_Immediate32 %280 # system->boot->open_protocol(root_device, &guid, &rootfs, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
488B4C24 40 ; LOAD64_into_RCX_from_Address_RSP_Immediate8 !64 # get rootfs
|
||||
4D89F9 ; mov_r9,r15 # arg4 = image_handle
|
||||
488D15 86030000 ; lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
488B4F 18 ; mov_rcx,[rdi+BYTE] !24 # arg1 = root_device = image->device
|
||||
4989CD ; mov_r13,rcx # save root_device
|
||||
50 ; push_rax # allocate stack for rootfs
|
||||
4989E0 ; mov_r8,rsp # arg3 = &rootfs
|
||||
6A 01 ; push !1 # arg6 = EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
|
||||
6A 00 ; push !0 # arg5 = NULL
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 18010000 ; call_[r14+DWORD] %280 # system->boot->open_protocol(root_device, &guid, &rootfs, image_handle, 0, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL)
|
||||
488B4C24 30 ; mov_rcx,[rsp+BYTE] !48 # get rootfs
|
||||
|
||||
# Get root directory
|
||||
52 ; PUSH_RDX # allocate stack for rootdir
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &rootdir
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # rootfs->open_volume(rootfs, &rootdir)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
415E ; POP_R14 # save rootdir
|
||||
50 ; push_rax # allocate stack for rootdir
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &rootdir
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # rootfs->open_volume(rootfs, &rootdir)
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
5E ; pop_rsi # save rootdir
|
||||
|
||||
# Push command line arguments onto stack
|
||||
488B5F 38 ; mov_rbx,[rdi+BYTE] !56 # options = image->load_options
|
||||
4889DA ; mov_rdx,rbx # save beginning of load_options
|
||||
48035F 30 ; add_rbx,[rdi+BYTE] !48 # go to the end of load_options
|
||||
6A 00 ; push !0 # Save end of arguments (NULL) onto stack
|
||||
# :loop_options
|
||||
4839D3 ; cmp_rbx,rdx # Check if we are done
|
||||
74 14 ; je8 !loop_options_done # We are done
|
||||
4883EB 02 ; sub_rbx, !2 # --options
|
||||
8A03 ; mov_al,[rbx] # *options
|
||||
3C 20 ; cmp_al, !0x20 # if *options != ' '
|
||||
75 F1 ; jne8 !loop_options # then continue looping
|
||||
C603 00 ; mov_[rbx], !0 # zero it
|
||||
4883C3 02 ; add_rbx, !2 # ++options
|
||||
53 ; push_rbx # push another argument onto stack
|
||||
EB E7 ; jmp8 !loop_options # next argument
|
||||
# :loop_options_done
|
||||
|
||||
# Open file for reading
|
||||
52 ; PUSH_RDX # allocate stack for fin
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &fin
|
||||
6A 01 ; PUSH !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
6A 01 ; PUSH !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
4159 ; POP_R9 # arg4 = EFI_FILE_MODE_READ
|
||||
4D89E0 ; COPY_R12_to_R8 # arg3 = in
|
||||
4C89F1 ; COPY_R14_to_RCX # arg1 = rootdir
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # rootdir->open()
|
||||
488B7C24 28 ; LOAD64_into_RDI_from_Address_RSP_Immediate8 !40 # get fin
|
||||
4158 ; pop_r8 # arg3 = in
|
||||
52 ; push_rdx # allocate stack for fin
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &fin
|
||||
6A 01 ; push !1 # arg5 = EFI_FILE_READ_ONLY
|
||||
6A 01 ; push !1 # prepare to set arg4 to EFI_FILE_MODE_READ
|
||||
4159 ; pop_r9 # arg4 = EFI_FILE_MODE_READ
|
||||
4889F1 ; mov_rcx,rsi # arg1 = rootdir
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # rootdir->open()
|
||||
4883C4 28 ; add_rsp, !40 # deallocate stack
|
||||
5F ; pop_rdi # get fin
|
||||
|
||||
# Open file for writing
|
||||
52 ; PUSH_RDX # allocate stack for fout
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &fout
|
||||
6A 00 ; PUSH !0 # arg5 = 0
|
||||
6A 07 ; PUSH !7 # to get 0x8000000000000003 we set the rightmost 3 bits
|
||||
4159 ; POP_R9 # and then do right rotation by 1
|
||||
49D1C9 ; ROR_R9 # arg4 = EFI_FILE_MODE_CREATE| EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ
|
||||
4D89E8 ; COPY_R13_to_R8 # arg3 = out
|
||||
4C89F1 ; COPY_R14_to_RCX # arg1 = rootdir
|
||||
4883EC 20 ; SUBI8_RSP !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; CALL_RCX_Immediate8 !8 # rootdir->open()
|
||||
488B5C24 28 ; LOAD64_into_RBX_from_Address_RSP_Immediate8 !40 # get fout
|
||||
4158 ; pop_r8 # arg3 = out
|
||||
52 ; push_rdx # allocate stack for fout
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &fout
|
||||
6A 00 ; push !0 # arg5 = 0
|
||||
6A 07 ; push !7 # to get 0x8000000000000003 we set the rightmost 3 bits
|
||||
4159 ; pop_r9 # and then do right rotation by 1
|
||||
49D1C9 ; ror_r9 # arg4 = EFI_FILE_MODE_CREATE| EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ
|
||||
4889F1 ; mov_rcx,rsi # arg1 = rootdir
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
FF51 08 ; call_[rcx+BYTE] !8 # rootdir->open()
|
||||
4883C4 28 ; add_rsp, !40 # deallocate stack
|
||||
5B ; pop_rbx # get fout
|
||||
|
||||
# [_start+0x107]
|
||||
49C7C7 FFFFFFFF ; LOADI32_R15 %-1 # Our flag for byte processing
|
||||
49C7C6 00000000 ; LOADI32_R14 %0 # temp storage for the sum
|
||||
49C7C5 00000000 ; LOADI32_R13 %0 # Our starting IP
|
||||
E8 2B000000 ; CALLI32 %First_pass # Process it
|
||||
# Save variables that are needed for cleanup
|
||||
4155 ; push_r13 # save root_device
|
||||
4156 ; push_r14 # save system->boot
|
||||
4157 ; push_r15 # save image_handle
|
||||
56 ; push_rsi # save rootdir
|
||||
|
||||
# Allocate pool for single-character label table
|
||||
# pointer to table will be stored at the top of the stack
|
||||
52 ; push_rdx # allocate stack for table
|
||||
4989E0 ; mov_r8,rsp # arg3 = &table
|
||||
31D2 ; xor_edx,edx # zero rdx
|
||||
B6 08 ; mov_dh, !0x8 # arg2 = 256 * 8 = 2048 = 0x800
|
||||
6A 02 ; push !2
|
||||
59 ; pop_rcx # arg1 = EFI_LOADER_DATA
|
||||
4883EC 18 ; sub_rsp, !24 # allocate shadow stack space for UEFI
|
||||
41FF56 40 ; call_[r14+BYTE] !64 # system->boot->allocate_pool(EFI_LOADER_DATA, 2048, &table)
|
||||
4883C4 18 ; add_rsp, !24 # deallocate stack
|
||||
|
||||
# [_start+0xe1]
|
||||
49C7C7 FFFFFFFF ; mov_r15, %-1 # Our flag for byte processing
|
||||
49C7C6 00000000 ; mov_r14, %0 # temp storage for the sum
|
||||
49C7C5 00000000 ; mov_r13, %0 # Our starting IP
|
||||
E8 2B000000 ; call %First_pass # Process it
|
||||
|
||||
# rewind input file
|
||||
4889F9 ; COPY_RDI_to_RCX # Using our input file
|
||||
31D2 ; XOR_EDX_EDX # Offset Zero
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 38 ; CALL_RCX_Immediate8 !56 # fin->set_position(fin, 0)
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
4889F9 ; mov_rcx,rdi # Using our input file
|
||||
31D2 ; xor_edx,edx # Offset Zero
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
FF51 38 ; call_[rcx+BYTE] !56 # fin->set_position(fin, 0)
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
|
||||
49C7C7 FFFFFFFF ; LOADI32_R15 %-1 # Our flag for byte processing
|
||||
49C7C6 00000000 ; LOADI32_R14 %0 # temp storage for the sum
|
||||
49C7C5 00000000 ; LOADI32_R13 %0 # Our starting IP
|
||||
E8 EF000000 ; CALLI32 %Second_pass # Process it
|
||||
49C7C7 FFFFFFFF ; mov_r15, %-1 # Our flag for byte processing
|
||||
49C7C6 00000000 ; mov_r14, %0 # temp storage for the sum
|
||||
49C7C5 00000000 ; mov_r13, %0 # Our starting IP
|
||||
E8 EF000000 ; call %Second_pass # Process it
|
||||
|
||||
E9 35020000 ; JMP32 %Done
|
||||
E9 34020000 ; jmp %Done
|
||||
|
||||
# :First_pass [_start+0x14C]
|
||||
E8 BB010000 ; CALLI32 %Read_byte
|
||||
# :First_pass [_start+0x126]
|
||||
E8 BA010000 ; call %Read_byte
|
||||
|
||||
# Deal with EOF
|
||||
483D FCFFFFFF ; CMPI32_RAX %-4
|
||||
0F84 67000000 ; JE32 %First_pass_done
|
||||
483D FCFFFFFF ; cmp_rax, %-4
|
||||
0F84 67000000 ; je %First_pass_done
|
||||
|
||||
# Check for :
|
||||
483D 3A000000 ; CMPI32_RAX %0x3a
|
||||
0F85 05000000 ; JNE32 %First_pass_0
|
||||
483D 3A000000 ; cmp_rax, %0x3a
|
||||
0F85 05000000 ; jne %First_pass_0
|
||||
|
||||
# Deal with label
|
||||
E8 EB010000 ; CALLI32 %StoreLabel
|
||||
E8 EA010000 ; call %StoreLabel
|
||||
|
||||
# :First_pass_0 [_start+0x16E]
|
||||
# :First_pass_0 [_start+0x148]
|
||||
# Check for %
|
||||
483D 25000000 ; CMPI32_RAX %0x25
|
||||
0F84 39000000 ; JE32 %First_pass_pointer
|
||||
483D 25000000 ; cmp_rax, %0x25
|
||||
0F84 39000000 ; je %First_pass_pointer
|
||||
|
||||
# Deal with everything else
|
||||
E8 46000000 ; CALLI32 %hex # Process our char
|
||||
E8 46000000 ; call %hex # Process our char
|
||||
|
||||
# Deal with EOF
|
||||
483D FCFFFFFF ; CMPI32_RAX %-4
|
||||
0F84 39000000 ; JE32 %First_pass_done
|
||||
483D FCFFFFFF ; cmp_rax, %-4
|
||||
0F84 39000000 ; je %First_pass_done
|
||||
|
||||
# deal with -1 values
|
||||
483D 00000000 ; CMPI32_RAX %0
|
||||
0F8C B5FFFFFF ; JL32 %First_pass
|
||||
483D 00000000 ; cmp_rax, %0
|
||||
0F8C B5FFFFFF ; jl %First_pass
|
||||
|
||||
# deal with toggle
|
||||
4981FF 00000000 ; CMPI32_R15 %0
|
||||
0F84 07000000 ; JE32 %First_pass_1
|
||||
4981C5 01000000 ; ADDI32_to_R13 %1 # Increment IP
|
||||
4981FF 00000000 ; cmp_r15, %0
|
||||
0F84 07000000 ; je %First_pass_1
|
||||
4981C5 01000000 ; add_r13, %1 # Increment IP
|
||||
|
||||
# :First_pass_1 [_start+0xAB]
|
||||
49F7D7 ; NOT_R15
|
||||
E9 99FFFFFF ; JMP32 %First_pass
|
||||
# :First_pass_1 [_start+0x185]
|
||||
49F7D7 ; not_r15
|
||||
E9 99FFFFFF ; jmp %First_pass
|
||||
|
||||
# :First_pass_pointer [_start+0x1B3]
|
||||
# :First_pass_pointer [_start+0x18D]
|
||||
# Deal with Pointer to label
|
||||
E8 54010000 ; CALLI32 %Read_byte # Drop the char
|
||||
4981C5 04000000 ; ADDI32_to_R13 %4 # Increment IP
|
||||
E9 88FFFFFF ; JMP32 %First_pass # Loop again
|
||||
E8 53010000 ; call %Read_byte # Drop the char
|
||||
4981C5 04000000 ; add_r13, %4 # Increment IP
|
||||
E9 88FFFFFF ; jmp %First_pass # Loop again
|
||||
|
||||
# :First_pass_done [_start+0x1C4]
|
||||
C3 ; RET
|
||||
# :First_pass_done [_start+0x19E]
|
||||
C3 ; ret
|
||||
|
||||
# :hex [_start+0x1C5]
|
||||
# :hex [_start+0x19F]
|
||||
# deal with EOF
|
||||
483D FCFFFFFF ; CMPI32_RAX %-4
|
||||
0F84 DC000000 ; JE32 %EOF
|
||||
483D FCFFFFFF ; cmp_rax, %-4
|
||||
0F84 DB000000 ; je %EOF
|
||||
# deal with line comments starting with #
|
||||
483D 23000000 ; CMPI32_RAX %0x23
|
||||
0F84 E8000000 ; JE32 %ascii_comment
|
||||
483D 23000000 ; cmp_rax, %0x23
|
||||
0F84 E7000000 ; je %ascii_comment
|
||||
# deal with line comments starting with ;
|
||||
483D 3B000000 ; CMPI32_RAX %0x3b
|
||||
0F84 DC000000 ; JE32 %ascii_comment
|
||||
483D 3B000000 ; cmp_rax, %0x3b
|
||||
0F84 DB000000 ; je %ascii_comment
|
||||
# deal all ascii less than 0
|
||||
483D 30000000 ; CMPI32_RAX %0x30
|
||||
0F8C C8000000 ; JL32 %ascii_other
|
||||
483D 30000000 ; cmp_rax, %0x30
|
||||
0F8C C7000000 ; jl %ascii_other
|
||||
# deal with 0-9
|
||||
483D 3A000000 ; CMPI32_RAX %0x3a
|
||||
0F8C AD000000 ; JL32 %ascii_num
|
||||
483D 3A000000 ; cmp_rax, %0x3a
|
||||
0F8C AC000000 ; jl %ascii_num
|
||||
# deal with all ascii less than A
|
||||
483D 41000000 ; CMPI32_RAX %0x41
|
||||
0F8C B0000000 ; JL32 %ascii_other
|
||||
483D 41000000 ; cmp_rax, %0x41
|
||||
0F8C AF000000 ; jl %ascii_other
|
||||
# deal with A-F
|
||||
483D 47000000 ; CMPI32_RAX %0x47
|
||||
0F8C 9F000000 ; JL32 %ascii_high
|
||||
483D 47000000 ; cmp_rax, %0x47
|
||||
0F8C 9E000000 ; jl %ascii_high
|
||||
# deal with all ascii less than a
|
||||
483D 61000000 ; CMPI32_RAX %0x61
|
||||
0F8C 98000000 ; JL32 %ascii_other
|
||||
483D 61000000 ; cmp_rax, %0x61
|
||||
0F8C 97000000 ; jl %ascii_other
|
||||
# deal with a-f
|
||||
483D 67000000 ; CMPI32_RAX %0x67
|
||||
0F8C 82000000 ; JL32 %ascii_low
|
||||
483D 67000000 ; cmp_rax, %0x67
|
||||
0F8C 81000000 ; jl %ascii_low
|
||||
# The rest that remains needs to be ignored
|
||||
E9 87000000 ; JMP32 %ascii_other
|
||||
E9 86000000 ; jmp %ascii_other
|
||||
|
||||
# :Second_pass [_start+0x236]
|
||||
E8 D1000000 ; CALLI32 %Read_byte
|
||||
# :Second_pass [_start+0x210]
|
||||
E8 D0000000 ; call %Read_byte
|
||||
|
||||
# Deal with EOF
|
||||
483D FCFFFFFF ; CMPI32_RAX %-4
|
||||
0F84 65000000 ; JE32 %Second_pass_done
|
||||
483D FCFFFFFF ; cmp_rax, %-4
|
||||
0F84 65000000 ; je %Second_pass_done
|
||||
|
||||
# Simply drop the label
|
||||
483D 3A000000 ; CMPI32_RAX %0x3a
|
||||
0F85 0A000000 ; JNE32 %Second_pass_0
|
||||
483D 3A000000 ; cmp_rax, %0x3a
|
||||
0F85 0A000000 ; jne %Second_pass_0
|
||||
|
||||
E8 B4000000 ; CALLI32 %Read_byte
|
||||
E9 D9FFFFFF ; JMP32 %Second_pass
|
||||
E8 B3000000 ; call %Read_byte
|
||||
E9 D9FFFFFF ; jmp %Second_pass
|
||||
|
||||
# :Second_pass_0 [_start+0x25D]
|
||||
# :Second_pass_0 [_start+0x237]
|
||||
# Deal with % pointer
|
||||
483D 25000000 ; CMPI32_RAX %0x25
|
||||
0F85 0A000000 ; JNE32 %Second_pass_1
|
||||
483D 25000000 ; cmp_rax, %0x25
|
||||
0F85 0A000000 ; jne %Second_pass_1
|
||||
|
||||
E8 F4000000 ; CALLI32 %StorePointer
|
||||
E9 C3FFFFFF ; JMP32 %Second_pass
|
||||
E8 F3000000 ; call %StorePointer
|
||||
E9 C3FFFFFF ; jmp %Second_pass
|
||||
|
||||
# :Second_pass_1 [_start+0x273]
|
||||
# :Second_pass_1 [_start+0x24D]
|
||||
# Deal with everything else
|
||||
E8 4DFFFFFF ; CALLI32 %hex # Process our char
|
||||
E8 4DFFFFFF ; call %hex # Process our char
|
||||
|
||||
# Deal with EOF
|
||||
483D FCFFFFFF ; CMPI32_RAX %-4
|
||||
0F84 28000000 ; JE32 %Second_pass_done
|
||||
483D FCFFFFFF ; cmp_rax, %-4
|
||||
0F84 28000000 ; je %Second_pass_done
|
||||
|
||||
# deal with -1 values
|
||||
483D 00000000 ; CMPI32_RAX %0
|
||||
0F8C A6FFFFFF ; JL32 %Second_pass
|
||||
483D 00000000 ; cmp_rax, %0
|
||||
0F8C A6FFFFFF ; jl %Second_pass
|
||||
|
||||
# deal with toggle
|
||||
4981FF 00000000 ; CMPI32_R15 %0
|
||||
0F84 4D000000 ; JE32 %print
|
||||
4981FF 00000000 ; cmp_r15, %0
|
||||
0F84 4C000000 ; je %print
|
||||
|
||||
# process first byte of pair
|
||||
4989C6 ; COPY_RAX_to_R14
|
||||
49C7C7 00000000 ; LOADI32_R15 %0
|
||||
4989C6 ; mov_r14,rax
|
||||
49C7C7 00000000 ; mov_r15, %0
|
||||
E9 8AFFFFFF ; JMP32 %Second_pass
|
||||
|
||||
# :Second_pass_done [_start+0x2AC]
|
||||
C3 ; RET
|
||||
|
||||
# :EOF [_start+0x2AD]
|
||||
C3 ; RET
|
||||
# :ascii_num [_start+0x2AE]
|
||||
4883E8 30 ; SUBI8_from_RAX !0x30
|
||||
C3 ; RET
|
||||
# :ascii_low [_start+0x2B3]
|
||||
4883E8 57 ; SUBI8_from_RAX !0x57
|
||||
C3 ; RET
|
||||
# :ascii_high [_start+0x2B8]
|
||||
4883E8 37 ; SUBI8_from_RAX !0x37
|
||||
C3 ; RET
|
||||
# :ascii_other [_start+0x2BD]
|
||||
48C7C0 FFFFFFFF ; LOADI32_RAX %-1
|
||||
C3 ; RET
|
||||
# :ascii_comment [_start+0x2C5]
|
||||
E8 42000000 ; CALLI32 %Read_byte
|
||||
483D 0D000000 ; CMPI32_RAX %0xd
|
||||
0F84 0C000000 ; JE32 %ascii_comment_cr
|
||||
483D 0A000000 ; CMPI32_RAX %0xa
|
||||
0F85 E3FFFFFF ; JNE32 %ascii_comment
|
||||
# :ascii_comment_cr [_start+0x2E2]
|
||||
48C7C0 FFFFFFFF ; LOADI32_RAX %-1
|
||||
C3 ; RET
|
||||
# :Second_pass_done [_start+0x286]
|
||||
# :EOF
|
||||
C3 ; ret
|
||||
# :ascii_num [_start+0x287]
|
||||
4883E8 30 ; sub_rax, !0x30
|
||||
C3 ; ret
|
||||
# :ascii_low [_start+0x28C]
|
||||
4883E8 57 ; sub_rax, !0x57
|
||||
C3 ; ret
|
||||
# :ascii_high [_start+0x291]
|
||||
4883E8 37 ; sub_rax, !0x37
|
||||
C3 ; ret
|
||||
# :ascii_other [_start+0x296]
|
||||
48C7C0 FFFFFFFF ; mov_rax, %-1
|
||||
C3 ; ret
|
||||
# :ascii_comment [_start+0x29E]
|
||||
E8 42000000 ; call %Read_byte
|
||||
483D 0D000000 ; cmp_rax, %0xd
|
||||
0F84 0C000000 ; je %ascii_comment_cr
|
||||
483D 0A000000 ; cmp_rax, %0xa
|
||||
0F85 E3FFFFFF ; jne %ascii_comment
|
||||
# :ascii_comment_cr [_start+0x2BB]
|
||||
48C7C0 FFFFFFFF ; mov_rax, %-1
|
||||
C3 ; ret
|
||||
|
||||
# process second byte of pair
|
||||
# :print [_start+0x2EA]
|
||||
# :print [_start+0x2C3]
|
||||
# update the sum and store in output
|
||||
49C1E6 04 ; SHL8_R14 !4
|
||||
4C01F0 ; ADD_R14_to_RAX
|
||||
49C1E6 04 ; shl_r14, !4
|
||||
4C01F0 ; add_rax,r14
|
||||
|
||||
# flip the toggle
|
||||
49F7D7 ; NOT_R15 # R15 = -1
|
||||
49F7D7 ; not_r15 # R15 = -1
|
||||
|
||||
48C7C2 01000000 ; LOADI32_RDX %1 # set the size of chars we want
|
||||
E8 2F000000 ; CALLI32 %print_chars
|
||||
48C7C2 01000000 ; mov_rdx, %1 # set the size of chars we want
|
||||
E8 31000000 ; call %print_chars
|
||||
|
||||
4981C5 01000000 ; ADDI32_to_R13 %1 # Increment IP
|
||||
E9 2AFFFFFF ; JMP32 %Second_pass
|
||||
4981C5 01000000 ; add_r13, %1 # Increment IP
|
||||
E9 2BFFFFFF ; jmp %Second_pass
|
||||
|
||||
|
||||
# :Read_byte [_start+0x30C]
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = fin
|
||||
6A 01 ; PUSH !1 # size = 1
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &size
|
||||
56 ; PUSH_RSI # allocate stack
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &input
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 20 ; CALL_RCX_Immediate8 !32 # fin->read()
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # deallocate stack
|
||||
58 ; POP_RAX # save input to rax
|
||||
5E ; POP_RSI # save size to rsi
|
||||
# :Read_byte [_start+0x2E5]
|
||||
4889F9 ; mov_rcx,rdi # arg1 = fin
|
||||
6A 01 ; push !1 # size = 1
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &size
|
||||
31F6 ; xor_esi,esi # zero rsi
|
||||
56 ; push_rsi # allocate stack
|
||||
4989E0 ; mov_r8,rsp # arg3 = &input
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
FF51 20 ; call_[rcx+BYTE] !32 # fin->read()
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # deallocate stack
|
||||
58 ; pop_rax # save input to rax
|
||||
5E ; pop_rsi # save size to rsi
|
||||
|
||||
# If the file ended (0 bytes read) return EOF
|
||||
85F6 ; TEST_ESI_ESI # if size = 0
|
||||
75 07 ; JNE8 !Read_byte_1
|
||||
48C7C0 FCFFFFFF ; LOADI32_RAX %-4 # Put EOF in rax
|
||||
85F6 ; test_esi,esi # if size = 0
|
||||
75 07 ; jne8 !Read_byte_1
|
||||
48C7C0 FCFFFFFF ; mov_rax, %-4 # Put EOF in rax
|
||||
|
||||
# :Read_byte_1 [_start+0x32E]
|
||||
C3 ; RET # return
|
||||
# :Read_byte_1 [_start+0x309]
|
||||
C3 ; ret # return
|
||||
|
||||
# Writes bytes stored in rax
|
||||
# :print_chars [_start+0x32F]
|
||||
4889D9 ; COPY_RBX_to_RCX # arg1 = fout
|
||||
52 ; PUSH_RDX # set size
|
||||
4889E2 ; COPY_RSP_to_RDX # arg2 = &size
|
||||
50 ; PUSH_RAX # allocate stack
|
||||
4989E0 ; COPY_RSP_to_R8 # arg3 = &output
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
FF51 28 ; CALL_RCX_Immediate8 !40 # fout->write()
|
||||
4883C4 28 ; ADDI8_RSP !40 # deallocate stack
|
||||
# :print_chars [_start+0x30A]
|
||||
4889D9 ; mov_rcx,rbx # arg1 = fout
|
||||
52 ; push_rdx # set size
|
||||
4889E2 ; mov_rdx,rsp # arg2 = &size
|
||||
50 ; push_rax # allocate stack
|
||||
4989E0 ; mov_r8,rsp # arg3 = &output
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
FF51 28 ; call_[rcx+BYTE] !40 # fout->write()
|
||||
4883C4 28 ; add_rsp, !40 # deallocate stack
|
||||
|
||||
C3 ; RET # return
|
||||
C3 ; ret # return
|
||||
|
||||
# :Get_table_target [_start+0x345]
|
||||
E8 C2FFFFFF ; CALLI32 %Read_byte # Get single char label
|
||||
48C1E0 03 ; SHL8_RAX !3 # Each label in table takes 8 bytes to store
|
||||
488B0D 6F000000 ; LOAD64_rel_RCX %table # Get table
|
||||
4801C8 ; ADD_RCX_to_RAX # Calculate offset
|
||||
C3 ; RET
|
||||
# :Get_table_target [_start+0x320]
|
||||
E8 C0FFFFFF ; call %Read_byte # Get single char label
|
||||
48C1E0 03 ; shl_rax, !3 # Each label in table takes 8 bytes to store
|
||||
488B4C24 18 ; mov_rcx,[rsp+BYTE] !24 # Get table
|
||||
4801C8 ; add_rax,rcx # Calculate offset
|
||||
C3 ; ret
|
||||
|
||||
# :StoreLabel [_start+0x359]
|
||||
E8 E7FFFFFF ; CALLI32 %Get_table_target
|
||||
4C8928 ; STORE32_R13_to_Address_in_RAX # Write out pointer to table
|
||||
C3 ; RET
|
||||
# :StoreLabel [_start+0x332]
|
||||
E8 E9FFFFFF ; call %Get_table_target
|
||||
4C8928 ; mov_[rax],r13 # Write out pointer to table
|
||||
C3 ; ret
|
||||
|
||||
# :StorePointer [_start+0x362]
|
||||
4981C5 04000000 ; ADDI32_to_R13 %4 # Increment IP
|
||||
E8 D7FFFFFF ; CALLI32 %Get_table_target # Get address of pointer
|
||||
678B00 ; LOAD32_Address_in_RAX_into_RAX # Get pointer
|
||||
4C29E8 ; SUB_R13_from_RAX # target - ip
|
||||
48C7C2 04000000 ; LOADI32_RDX %4 # set the size of chars we want
|
||||
E8 AFFFFFFF ; CALLI32 %print_chars
|
||||
C3 ; RET
|
||||
# :StorePointer [_start+0x33B]
|
||||
4981C5 04000000 ; add_r13, %4 # Increment IP
|
||||
E8 D9FFFFFF ; call %Get_table_target # Get address of pointer
|
||||
488B00 ; mov_rax,[rax] # Get pointer
|
||||
4C29E8 ; sub_rax,r13 # target - ip
|
||||
48C7C2 04000000 ; mov_rdx, %4 # set the size of chars we want
|
||||
E8 B1FFFFFF ; call %print_chars
|
||||
C3 ; ret
|
||||
|
||||
# :Done [_start+0x35A]
|
||||
59 ; pop_rcx # restore table
|
||||
5E ; pop_rsi # restore rootdir
|
||||
415F ; pop_r15 # restore image_handle
|
||||
415E ; pop_r14 # restore system->boot
|
||||
415D ; pop_r13 # restore root_device
|
||||
|
||||
# :Done [_start+0x381]
|
||||
# Free pool
|
||||
488B0D 3C000000 ; LOAD64_rel_RCX %table # arg1 = table
|
||||
50 ; PUSH_RAX # allocate shadow stack space for UEFI function
|
||||
4C8B35 3C000000 ; LOAD64_rel_R14 %SystemBoot # get system->boot
|
||||
41FF56 48 ; CALL_R14_Immediate8 !72 # system->boot->free_pool(table)
|
||||
# arg1 = table
|
||||
50 ; push_rax # allocate shadow stack space for UEFI function
|
||||
41FF56 48 ; call_[r14+BYTE] !72 # system->boot->free_pool(table)
|
||||
|
||||
4889F9 ; COPY_RDI_to_RCX # arg1 = fin
|
||||
FF51 10 ; CALL_RCX_Immediate8 !16 # fin->close()
|
||||
4889D9 ; COPY_RBX_to_RCX # arg1 = fout
|
||||
FF51 10 ; CALL_RCX_Immediate8 !16 # fout->close()
|
||||
4889F9 ; mov_rcx,rdi # arg1 = fin
|
||||
FF51 10 ; call_[rcx+BYTE] !16 # fin->close()
|
||||
4889D9 ; mov_rcx,rbx # arg1 = fout
|
||||
FF51 10 ; call_[rcx+BYTE] !16 # fout->close()
|
||||
4889F1 ; mov_rcx,rsi # arg1 = rootdir
|
||||
FF51 10 ; call_[rcx+BYTE] !16 # rootdir->close()
|
||||
|
||||
4889EC ; COPY_RBP_to_RSP # restore stack
|
||||
C3 ; RET # return to UEFI
|
||||
4D89F8 ; mov_r8,r15 # arg3 = image_handle
|
||||
488D15 3C000000 ; lea_rdx,[rip+DWORD] %SIMPLE_FS_PROTOCOL # guid = &SIMPLE_FS_PROTOCOL
|
||||
4C89E9 ; mov_rcx,r13 # arg1 = root_device
|
||||
4D31C9 ; xor_r9,r9 # arg4 = NULL
|
||||
4883EC 20 ; sub_rsp, !32 # allocate shadow stack space for UEFI function
|
||||
41FF96 20010000 ; call_[r14+DWORD] %288 # system->boot->close_protocol(root_device, &guid, image_handle, 0)
|
||||
|
||||
4D89F8 ; mov_r8,r15 # arg3 = image_handle
|
||||
488D15 11000000 ; lea_rdx,[rip+DWORD] %LOADED_IMAGE_PROTOCOL # guid = &LOADED_IMAGE_PROTOCOL
|
||||
4C89C1 ; mov_rcx,r8 # arg1 = image_handle
|
||||
4D31C9 ; xor_r9,r9 # arg4 = NULL
|
||||
41FF96 20010000 ; call_[r14+DWORD] %288 # system->boot->close_protocol(image_handle, &guid, image_handle, 0)
|
||||
|
||||
4889EC ; mov_rsp,rbp # restore stack
|
||||
C3 ; ret # return to UEFI
|
||||
|
||||
|
||||
# Protocol GUIDs
|
||||
# :LOADED_IMAGE_PROTOCOL [_start+0x3A4]
|
||||
# :LOADED_IMAGE_PROTOCOL [_start+0x3AF]
|
||||
A1 31 1B 5B ; %0x5b1b31a1
|
||||
62 95 ; @0x9562
|
||||
D2 11 ; @0x11d2
|
||||
# :LOADED_IMAGE_PROTOCOL_8 [_start+0x3AC]
|
||||
8E 3F 00 A0 C9 69 72 3B ; !0x8e !0x3f !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
# :SIMPLE_FS_PROTOCOL [_start+0x3B4]
|
||||
# :SIMPLE_FS_PROTOCOL [_start+0x3BF]
|
||||
22 5B 4E 96 ; %0x0964e5b22
|
||||
59 64 ; @0x6459
|
||||
D2 11 ; @0x11d2
|
||||
# :SIMPLE_FS_PROTOCOL_8 [_start+0x3BC]
|
||||
8E 39 00 A0 C9 69 72 3B ; !0x8e !0x39 !0 !0xa0 !0xc9 !0x69 !0x72 !0x3b
|
||||
|
||||
# :table [_start+0x3C4]
|
||||
00000000 00000000
|
||||
|
||||
# :SystemBoot [_start+0x3CC]
|
||||
00000000 00000000
|
||||
|
||||
# :PE32_end [_start+0x3D4]
|
||||
# :PE32_end [_start+0x3CF]
|
||||
|
|
|
@ -14,7 +14,7 @@ amd64\artifact\hex0.efi amd64\hex1.hex0 amd64\artifact\hex1.efi
|
|||
#################################
|
||||
# Phase-2 Build hex2 from hex1 #
|
||||
#################################
|
||||
amd64\artifact\hex1.efi amd64\hex2.hex1 amd64\artifact\hex2-0.efi
|
||||
amd64\artifact\hex1.efi amd64\hex2.hex1 amd64\artifact\hex2-0.efi
|
||||
# hex2 adds support for long labels and absolute addresses thus allowing it
|
||||
# to function as an effective linker for later stages of the bootstrap
|
||||
# This is a minimal version which will be used to bootstrap a much more advanced
|
||||
|
|
Loading…
Reference in New Issue