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Get binaries closer to running without an o/s

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blinkenlights now does a pretty good job emulating what happens when
binaries boot from BIOS into long mode. So it's been much easier to
debug the bare metal process and wrinkle out many issues.
This commit is contained in:
Justine Tunney 2020-10-29 04:53:20 -07:00
parent feed0d2b0e
commit 2d80bbc802
50 changed files with 974 additions and 1062 deletions
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7
libc/sysv/systemfive.S
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@ -166,6 +166,8 @@ systemfive.xnu:
.init.start 300,_init_systemfive
push %rbx
push %rsi
testb $METAL,(%rdi) # @see ape/ape.S
jnz systemfive.init.metal
testb $XNU,(%rdi) # @see libc/crt/crt.S
jnz systemfive.init.xnu
testb $FREEBSD,(%rdi) # @see libc/crt/crt.S
@ -181,6 +183,11 @@ systemfive.init.linux:
push $LINUX
ezlea syscon.linux,si
jmp systemfive.init.os
systemfive.init.metal:
pushb systemfive.linux-.Lanchorpoint
push $METAL
ezlea syscon.linux,si
jmp systemfive.init.os
systemfive.init.windows:
pushb systemfive.enosys-.Lanchorpoint
push $WINDOWS