No Idea.
Well I have one. Some coders have a stuffed animal on their desk. When they hit a wall they pick it up and then explain the problem to the stuffed animal. Sometimes in the course of explaining and vocalizing the problem, they figure out the solution.https://medium.com/illumination/the-teddy-bear-approach-to-problem-solving-735c294d922d
I will be that stuffed animal.
So
I can do basic instructions.
- Downloaded your code. All good.
- Read your readme.
- Ran your setup.
- Ran zig run build … no qemu-system-x86_64
- sudo apt install qemu-system-x86_64 … E: Unable to locate package qemu-system-x86_64
- sudo apt install qemu-system-i386 … installed
- zig build run
it works see error log below
cd sources/
cd kernel/
git checkout paging …branch ‘paging’ set up to track ‘origin/paging’.
Switched to a new branch 'paging
zig run build … Error message
Error log below as well
[error] (debug): Error occurred during opening debug info: EndOfBuffer
I think that the git change maybe the problem.
Grin
If you need me to try anything else please advise.
// ----------------------------------------
// Senior Moo says: "I like the errors being in red"
// ----------------------------------------
// \
// \ ^__^
// \ (oo)\_______
// (__)\ )\/\
// ||----w |
// || ||
All the best
Working log
WARNING: Image format was not specified for 'json:{"fat-type": 0, "dir": "/media/sgeorge/usb_hd_ext4/00_bits/Computers/Zig/Play/20240802_kernel_ziggit/dev-env/zig-out/systemroot", "driver": "vvfat", "floppy": false, "rw": true, "write-target": {"driver": "qcow", "file": {"driver": "file", "filename": "/var/tmp/vl.LUZMR2"}}}' and probing guessed raw.
Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
Specify the 'raw' format explicitly to remove the restrictions.
BdsDxe: loading Boot0001 "UEFI QEMU HARDDISK QM00004 " from PciRoot(0x0)/Pci(0x1,0x1)/Ata(Secondary,Slave,0x0)
BdsDxe: starting Boot0001 "UEFI QEMU HARDDISK QM00004 " from PciRoot(0x0)/Pci(0x1,0x1)/Ata(Secondary,Slave,0x0)
[debug] (main): Locating graphics output protocol
[debug] (main): Querying graphics mode info
[info] (main): Current graphics mode = 0
[info] (main): Resolution and pixel format: 1280x800 BlueGreenRedReserved8BitPerColor
[debug] (main): Locating simple file system protocol
[debug] (main): Opening root volume
[debug] (main): Getting memory map to find free addresses
[debug] (main): Finding free kernel base address
[debug] (main): mem_count is 103
[debug] (main): mem_index is 0
[debug] (main): mem_index is 1
[debug] (main): mem_index is 2
[debug] (main): Found 1792 free pages at 0x100000
[info] (main): Loading kernel image
[debug] (loader): Opening kernel image
[debug] (loader): Checking ELF identity
[debug] (loader): ELF identity is good; continuing loading
[debug] (loader): Loading ELF header
[debug] (loader): Loading ELF header succeeded; entry point is 0x100010
[debug] (loader): Loading program headers
[debug] (loader): Loading 5 segments
[debug] (loader): Loading program segment 0
[debug] (loader): Set kernel start address to 0x100000 and base address difference to 0x0
[debug] (loader): Allocating 70 pages at address '0x100000'
[debug] (loader): Reading segment data with file size '0x4521a'
[debug] (loader): Loading program segment 1
[debug] (loader): Allocating 7 pages at address '0x146000'
[debug] (loader): Reading segment data with file size '0x6a98'
[debug] (loader): Loading program segment 2
[debug] (loader): Allocating 9 pages at address '0x14d000'
[debug] (loader): Reading segment data with file size '0x1088'
[debug] (loader): Zero-filling 28664 bytes at address '0x14e088'
[debug] (main): Kernel Entry Point is: '0x0000000000100010'
[debug] (main): Kernel Start Address is: '0x0000000000100000'
[debug] (main): Disabling watchdog timer
[info] (main): Getting memory map and trying to exit boot services
Not working log
WARNING: Image format was not specified for 'json:{"fat-type": 0, "dir": "/media/sgeorge/usb_hd_ext4/00_bits/Computers/Zig/Play/20240802_kernel_ziggit/dev-env/zig-out/systemroot", "driver": "vvfat", "floppy": false, "rw": true, "write-target": {"driver": "qcow", "file": {"driver": "file", "filename": "/var/tmp/vl.XUILR2"}}}' and probing guessed raw.
Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
Specify the 'raw' format explicitly to remove the restrictions.
BdsDxe: loading Boot0001 "UEFI QEMU HARDDISK QM00004 " from PciRoot(0x0)/Pci(0x1,0x1)/Ata(Secondary,Slave,0x0)
BdsDxe: starting Boot0001 "UEFI QEMU HARDDISK QM00004 " from PciRoot(0x0)/Pci(0x1,0x1)/Ata(Secondary,Slave,0x0)
[debug] (main): Locating graphics output protocol
[debug] (main): Querying graphics mode info
[info] (main): Current graphics mode = 0
[info] (main): Resolution and pixel format: 1280x800 BlueGreenRedReserved8BitPerColor
[debug] (main): Locating simple file system protocol
[debug] (main): Opening root volume
[debug] (main): Getting memory map to find free addresses
[debug] (main): Finding free kernel base address
[debug] (main): mem_count is 107
[debug] (main): mem_index is 0
[debug] (main): mem_index is 1
[debug] (main): mem_index is 2
[debug] (main): Found 1792 free pages at 0x100000
[info] (main): Loading kernel image
[debug] (loader): Opening kernel image
[debug] (loader): Checking ELF identity
[debug] (loader): ELF identity is good; continuing loading
[debug] (loader): Loading ELF header
[debug] (loader): Loading ELF header succeeded; entry point is 0x1001d0
[debug] (loader): Loading program headers
[debug] (loader): Loading 5 segments
[debug] (loader): Loading program segment 0
[debug] (loader): Set kernel start address to 0x100000 and base address difference to 0x0
[debug] (loader): Allocating 132 pages at address '0x100000'
[debug] (loader): Reading segment data with file size '0x83a9a'
[debug] (loader): Loading program segment 1
[debug] (loader): Allocating 199 pages at address '0x184000'
[debug] (loader): Reading segment data with file size '0xc6b69'
[debug] (loader): Loading program segment 2
[debug] (loader): Allocating 10 pages at address '0x24b000'
[debug] (loader): Reading segment data with file size '0x12a8'
[debug] (loader): Zero-filling 32152 bytes at address '0x24c2a8'
[debug] (main): Kernel Entry Point is: '0x00000000001001d0'
[debug] (main): Kernel Start Address is: '0x0000000000100000'
[debug] (main): Disabling watchdog timer
[info] (main): Getting memory map and trying to exit boot services
[info] (kmain): Zig OS Kernel
[info] (kmain): =============
[info] (kp_alloc): Kernel Page Allocator initialization...
[debug] (kp_alloc): Bootstrapping the allocator...
[debug] (kp_alloc): 1451 free pages found at 0x255000
[debug] (kp_alloc): 3 free pages found at 0x808000
[debug] (kp_alloc): 4 free pages found at 0x80c000
[debug] (kp_alloc): 9205 free pages found at 0x1780000
[debug] (kp_alloc): 9615 free pages found at 0x3b95000
[debug] (kp_alloc): 29 free pages found at 0x6143000
[debug] (kp_alloc): 1 free pages found at 0x6251000
[debug] (kp_alloc): 1 free pages found at 0x63df000
[debug] (kp_alloc): 1 free pages found at 0x63e8000
[debug] (kp_alloc): 1 free pages found at 0x6969000
[debug] (kp_alloc): 219 free pages found at 0x7e00000
[debug] (kp_alloc): 81 pages needed to store map
[debug] (kp_alloc): Reslicing the map to 0x7af000
[debug] (kp_alloc): Migrating map contents from bootstrap to new slice
[debug] (kp_alloc): Allocating 1 pages at 0x00000000007ae000
[debug] (kp_alloc): Test allocation has 1
[info] (kp_alloc): Kernel Page Allocator initialization successful!
[debug] (debug): Panic and debug info initialization...
[debug] (debug): Debug INFO from 0x000000000018eab0 to 0x00000000001e1133 (len = 337539)
[debug] (debug): Debug ABBREV from 0x00000000001e1133 to 0x00000000001e18ef (len = 1980)
[debug] (debug): Debug STR from 0x00000000001e18ef to 0x0000000000201fed (len = 132862)
[debug] (debug): Debug LINE from 0x0000000000201fed to 0x0000000000239149 (len = 225628)
[debug] (debug): Debug RANGES from 0x0000000000239149 to 0x000000000024ab69 (len = 72224)
[error] (debug): Error occurred during opening debug info: EndOfBuffer
[info] (acpi): ACPI initialization...
[debug] (acpi): RSDP 1.0 Address: 0x777e000
[debug] (acpi): RSDP 2.0 Address: 0x777e014
[debug] (acpi): RSDP Signature is valid!
[debug] (acpi): RSDP Checksum is valid!
[debug] (acpi): XSDT Address is 0x777d0e8
[debug] (acpi): XSDT Signature is valid!
[debug] (acpi): XSDT Checksum is valid!
[debug] (acpi): XSDT has 5 entries
[debug] (acpi_xsdt): Entry is FACP
[debug] (acpi_xsdt): Entry is APIC
[debug] (acpi): Found MADT at 0x7779000
[debug] (acpi): MADT Checksum is valid!
[debug] (acpi_madt): MADT Entry tag is lapic
[debug] (acpi_madt): MADT Entry tag is io_apic
[debug] (acpi): I/O APIC Entry is acpi.madt.IOAPIC{ .apic_id = 0, .res1 = 0, .ioapic_addr = 4273995776, .glob_sys_int_base = 0 }
[info] (acpi): ACPI initialization successful!
[info] (arch_platform): Platform-specific initialization...
[info] (arch_gdt): GDT initialization...
[info] (arch_gdt): GDT initialization successful!
[info] (arch_idt): IDT initialization...
[info] (arch_idt): IDT initialization successful!
[info] (arch_platform): PIC disabling...
[info] (arch_platform): PIC disabling successful!
[info] (arch_paging): Paging initialization...
[debug] (arch_paging): Allocating a Page Map Level 4 Table
[debug] (kp_alloc): Allocating 1 pages at 0x00000000007ad000
[debug] (arch_paging): UEFI Memory Map Contents:
[debug] (arch_paging): V: 0x0-0xfff PG: 1 T: boot_services
[debug] (arch_paging): V: 0x1000-0x9ff61 PG: 159 T: conventional
[debug] (arch_paging): V: 0x100000-0x254eab PG: 341 T: loader
[debug] (arch_paging): V: 0x255000-0x7ffa55 PG: 1451 T: conventional
[debug] (arch_paging): V: 0x800000-0x807ff8 PG: 8 T: acpi
[debug] (arch_paging): V: 0x808000-0x80affd PG: 3 T: conventional
[debug] (arch_paging): V: 0x80b000-0x80bfff PG: 1 T: acpi
[debug] (arch_paging): V: 0x80c000-0x80fffc PG: 4 T: conventional
[debug] (arch_paging): V: 0x810000-0x8fff10 PG: 240 T: acpi
[debug] (arch_paging): V: 0x900000-0x177f180 PG: 3712 T: boot_services
[debug] (arch_paging): V: 0x1780000-0x3b72c0b PG: 9205 T: conventional
[debug] (arch_paging): V: 0x3b75000-0x3b94fe0 PG: 32 T: boot_services
[debug] (arch_paging): V: 0x3b95000-0x6121a71 PG: 9615 T: conventional
[debug] (arch_paging): V: 0x6124000-0x6142fe1 PG: 31 T: loader
[debug] (arch_paging): V: 0x6143000-0x615ffe3 PG: 29 T: conventional
[debug] (arch_paging): V: 0x6160000-0x6250f0f PG: 241 T: boot_services
[debug] (arch_paging): V: 0x6251000-0x6251fff PG: 1 T: conventional
[debug] (arch_paging): V: 0x6252000-0x63dee73 PG: 397 T: boot_services
[debug] (arch_paging): V: 0x63df000-0x63dffff PG: 1 T: conventional
[debug] (arch_paging): V: 0x63e0000-0x63e7ff8 PG: 8 T: boot_services
[debug] (arch_paging): V: 0x63e8000-0x63e8fff PG: 1 T: conventional
[debug] (arch_paging): V: 0x63e9000-0x6968fea PG: 1408 T: boot_services
[debug] (arch_paging): V: 0x6969000-0x6969fff PG: 1 T: conventional
[debug] (arch_paging): V: 0x696a000-0x74ecd71 PG: 2947 T: boot_services
[debug] (arch_paging): V: 0x74ed000-0x76ecf00 PG: 512 T: runtime_services
[debug] (arch_paging): V: 0x76ed000-0x776cf80 PG: 128 T: reserved
[debug] (arch_paging): V: 0x776d000-0x77fef80 PG: 146 T: acpi
[debug] (arch_paging): V: 0x77ff000-0x7dff9ff PG: 1537 T: boot_services
[debug] (arch_paging): V: 0x7e00000-0x7edaf25 PG: 219 T: conventional
[debug] (arch_paging): V: 0x7edb000-0x7f57fe7 PG: 125 T: boot_services
[debug] (arch_paging): V: 0x7f58000-0x7f77fe0 PG: 32 T: runtime_services
[debug] (arch_paging): V: 0x7f78000-0x7ffff78 PG: 136 T: acpi
[debug] (arch_paging): Kernel Physical Start: 0x0000000000100000
[debug] (arch_paging): Kernel page size: 341 pages
[info] (arch_paging): Paging initialization successful!
[info] (arch_lapic): APIC initialization...
[debug] (arch_lapic): CPU has builtin APIC
[debug] (arch_lapic): APIC Base is 0xfee00000
[debug] (arch_lapic): Physical from virtual (hex): null
[debug] (arch_lapic): Register local_apic_version has value 0x50014
[debug] (arch_lapic): Local APIC Version: arch.x86-64.lapic.LapicVersion{ .version = 20, .res1 = 0, .max_lvt = 5, .eoi_broadcast_suppression = false, .res2 = 0 }
[info] (arch_lapic): APIC initialization successful!
[info] (arch_ioapic): I/O APIC Initialization...
[debug] (arch_ioapic): Disabling IRQ 0 => VEC 48
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Enabling IRQ 1 => VEC 49
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 2 => VEC 50
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 3 => VEC 51
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 4 => VEC 52
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 5 => VEC 53
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 6 => VEC 54
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 7 => VEC 55
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 8 => VEC 56
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 9 => VEC 57
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 10 => VEC 58
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 11 => VEC 59
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 12 => VEC 60
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 13 => VEC 61
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 14 => VEC 62
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 15 => VEC 63
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 16 => VEC 64
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 17 => VEC 65
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 18 => VEC 66
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 19 => VEC 67
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 20 => VEC 68
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 21 => VEC 69
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 22 => VEC 70
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): Disabling IRQ 23 => VEC 71
[debug] (arch_lapic): Register local_apic_id has value 0x0
[debug] (arch_ioapic): I/O APIC Version: 0x170020
[info] (arch_ioapic): I/O APIC Initialization successful!
[debug] (arch_platform): CR0 contents: arch.x86-64.registers.CR0{ .pe = true, .mp = true, .em = false, .ts = false, .et = true, .ne = true, .res1 = 0, .wp = true, .res2 = 0, .am = false, .res3 = 0, .nw = false, .cd = false, .pg = true, .res4 = 0 }
[info] (arch_platform): Platform-specific initialization successful!
[debug] (acpi_madt): MADT Entry tag is lapic
[debug] (acpi_madt): MADT Entry tag is io_apic
[debug] (acpi_madt): MADT Entry tag is io_apic_int_src_override
[debug] (arch_ioapic): I/O APIC Source Override: 0x0000000000020000
[debug] (acpi_madt): MADT Entry tag is io_apic_int_src_override
[debug] (arch_ioapic): I/O APIC Source Override: 0x000d000000050500
[debug] (acpi_madt): MADT Entry tag is io_apic_int_src_override
[debug] (arch_ioapic): I/O APIC Source Override: 0x000d000000090900
[debug] (acpi_madt): MADT Entry tag is io_apic_int_src_override
[debug] (arch_ioapic): I/O APIC Source Override: 0x000d0000000a0a00
[debug] (acpi_madt): MADT Entry tag is io_apic_int_src_override
[debug] (arch_ioapic): I/O APIC Source Override: 0x000d0000000b0b00
[debug] (acpi_madt): MADT Entry tag is lapic_int_no_mask
[debug] (kmain): kernel_start = 0x100000, kernel_end = 0x254040
[debug] (term_fbcon): Found control sequence!
[debug] (term_fbcon): Arguments:
[debug] (term_fbcon): Number: 38
[debug] (term_fbcon): Number: 5
[debug] (term_fbcon): Number: 100
[debug] (term_fbcon): Command: m
[debug] (term_fbcon): Trying to handle it now
[warning] (term_fbcon_sgr): Unknown control sequence argument, skipping
[debug] (term_fbcon): Found control sequence!
[debug] (term_fbcon): Arguments:
[debug] (term_fbcon): Number: 2
[debug] (term_fbcon): Command: J
[debug] (term_fbcon): Trying to handle it now
[debug] (term_fbcon): Found control sequence!
[debug] (term_fbcon): Arguments:
[debug] (term_fbcon): Number: 1
[debug] (term_fbcon): Number: 4
[debug] (term_fbcon): Number: 7
[debug] (term_fbcon): Number: 35
[debug] (term_fbcon): Command: m
[debug] (term_fbcon): Trying to handle it now
[debug] (term_fbcon): Found control sequence!
[debug] (term_fbcon): Arguments:
[debug] (term_fbcon): Number: 0
[debug] (term_fbcon): Number: 35
[debug] (term_fbcon): Command: m
[debug] (term_fbcon): Trying to handle it now
[debug] (term_fbcon): Found control sequence!
[debug] (term_fbcon): Arguments:
[debug] (term_fbcon): Number: 0
[debug] (term_fbcon): Command: m
[debug] (term_fbcon): Trying to handle it now