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Add UEFI support

Browse source 
This is mutually exclusive with Windows support. Documentation for how
to use it has been written in libc/runtime/efimain.c
This commit is contained in:
Justine Tunney 2021-02-21 16:26:36 -08:00 • committed by Justine Tunney
parent c6c9b5dfde
commit 537c21338b
24 changed files with 1381 additions and 391 deletions
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49
ape/ape.S
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@ -105,7 +105,7 @@ rlstr: .endobj rlstr,globl,hidden # ←for gdb readibility
│ αcτµαlly pδrταblε εxεcµταblε § the old technology │
╚─────────────────────────────────────────────────────────────────────────────*/
#if SupportsWindows() || SupportsXnu()
#if SupportsWindows() || SupportsUefi() || SupportsXnu()
// MZ Literally Executable Header
//
@ -131,14 +131,14 @@ ape_mz: .asciz "MZqFpD='\n" # Mark 'Zibo' Joseph Zbikowski
.ascii "JT" # MZ: OEM identifier
.short 0 # MZ: OEM information
.org 0x40-4 # MZ: bytes reserved for you
#if SupportsWindows()
#if SupportsWindows() || SupportsUefi()
.long RVA(ape_pe) # PE: the new technology
#else
.long 0
#endif
.endfn ape_mz,globl,hidden
#else /* !(SupportsWindows() || SupportsXnu()) */
#else /* !(SupportsWindows() || SupportsUefi() || SupportsXnu()) */
// ELF Literally Executable Header
//
@ -168,7 +168,7 @@ ape_mz: .asciz "MZqFpD='\n" # Mark 'Zibo' Joseph Zbikowski
.short ape_elf_shnum # 3c: e_shnum
.short ape_elf_shstrndx # 3e: e_shstrndx
#endif /* SupportsWindows() || SupportsXnu() */
#endif /* SupportsWindows() || SupportsUefi() || SupportsXnu() */
#if SupportsMetal()
@ -471,7 +471,7 @@ ape_disk:
#if SupportsSystemv()
#if SupportsWindows() || SupportsXnu()
#if SupportsWindows() || SupportsUefi() || SupportsXnu()
apesh: .ascii "'\n#'\"\n" # sixth edition shebang
.ascii "o=\"$(command -v \"$0\")\"\n"
#if SupportsXnu()
@ -526,7 +526,7 @@ apesh: .ascii "'\n#'\"\n" # sixth edition shebang
.ascii "fi\n"
.ascii "exit $R\n"
.endobj apesh
#endif /* SupportsWindows() || SupportsXnu() */
#endif /* SupportsWindows() || SupportsUefi() || SupportsXnu() */
.section .elf.phdrs,"a",@progbits
.long PT_LOAD # text segment
@ -812,7 +812,7 @@ PETEXT = 0b01110000000000000000000001100000
PEDATA = 0b11000000000000000000000011000000
PEIMPS = 0b11000000000000000000000001000000
#if SupportsWindows()
#if SupportsWindows() || SupportsUefi()
.section .pe.header,"a",@progbits
.align __SIZEOF_POINTER__
@ -830,23 +830,27 @@ ape_pe: .ascin "PE",4
.long 0 # SizeOfCode
.long 0 # SizeOfInitializedData
.long 0 # SizeOfUninitializedData
.long RVA(WinMain) # EntryPoint
.long RVA(ape_pe_entry) # EntryPoint
.long 0 # BaseOfCode
.quad IMAGE_BASE_VIRTUAL # ImageBase
.long 4096 # SectionAlignment
.long 4096 # FileAlignment
.short 6 # MajorOperatingSystemVersion
.short v_ntversion # MajorOperatingSystemVersion
.short 0 # MinorOperatingSystemVersion
.short 0 # MajorImageVersion
.short 0 # MinorImageVersion
.short 6 # MajorSubsystemVersion
.short v_ntsubversion # MajorSubsystemVersion
.short 0 # MinorSubsystemVersion
.long 0 # Win32VersionValue
.long RVA(_end) # SizeOfImage
.long RVA(_ehead) # SizeOfHeaders
.long 0 # Checksum
.short v_ntsubsystem # Subsystem: 0=Neutral,2=GUI,3=Console
#if SupportsWindows()
.short DLLEXE # DllCharacteristics
#else
.short 0 # DllCharacteristics
#endif
.quad 0x0000000000100000 # StackReserve
.quad 0x00000000000fc000 # StackCommit
.quad 0 # HeapReserve
@ -854,8 +858,12 @@ ape_pe: .ascin "PE",4
.long 0 # LoaderFlags
.long 16 # NumberOfDirectoryEntries
.long 0,0 # ExportsDirectory
#if SupportsWindows()
.long RVA(ape_idata_idt) # ImportsDirectory
.stub ape_idata_idtsize,long # ImportsDirectorySize
#else
.long 0,0 # ImportsDirectory
#endif
.long 0,0 # ResourcesDirectory
.long 0,0 # ExceptionsDirectory
.long 0,0 # SecurityDirectory
@ -866,8 +874,12 @@ ape_pe: .ascin "PE",4
.long 0,0 # ThreadLocalStorage
.long 0,0 # LoadConfigurationDirectory
.long 0,0 # BoundImportDirectory
#if SupportsWindows()
.long RVA(ape_idata_iat) # ImportAddressDirectory
.stub ape_idata_iatsize,long # ImportAddressDirectorySize
#else
.long 0,0 # ImportAddressDirectory
#endif
.long 0,0 # DelayImportDescriptor
.long 0,0 # ComPlusRuntimeHeader
.long 0,0 # Reserved
@ -900,7 +912,7 @@ ape_pe: .ascin "PE",4
.long PEDATA # Flags
.previous
#endif /* SupportsWindows() */
#endif /* SupportsWindows() || SupportsUefi() */
.section .idata.ro.idt.1,"a",@progbits
.type ape_idata_idtend,@object
@ -1524,22 +1536,21 @@ metal.thunk:
#endif
// 𝑠𝑙𝑖𝑑𝑒
.endfn metal.thunk
metal:
xor %eax,%eax # clear bss
metal: xor %eax,%eax # clear bss
mov $ape_bss_vaddr,%edi
mov $ape_bss_memsz,%ecx
rep stosb
.weak __hostos
0: .weak __hostos
ezlea __hostos,ax
test %rax,%rax
jz 1f
movb $METAL,(%rax)
1: push $0 # auxv
push $0
push $0 # envp
push $0 # auxv
1: push $0 # auxv[0][1]
push $0 # auxv[0][0]
push $0 # envp[0]
push $0 # argv[0]
push $0 # argc
xor %edi,%edi
xor %edi,%edi # not freebsd
jmp _start
.endfn metal