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Get aarch64 hello world working

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$ m=aarch64-tiny
    $ make -j8 m=$m o/$m/tool/hello/hello.com o/third_party/qemu/qemu-aarch64
    $ o/third_party/qemu/qemu-aarch64 o/$m/tool/hello/hello.com
    hello world
    $ ls -hal o/$m/tool/hello/hello.com
    -rwxr-xr-x 1 jart jart 4.0K May  9 05:04 o/aarch64-tiny/tool/hello/hello.com
This commit is contained in:
Justine Tunney 2023-05-09 02:35:05 -07:00
parent e5e3cdf447
commit ae0ee59614
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GPG key ID: BE714B4575D6E328
174 changed files with 1454 additions and 851 deletions
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8
libc/sysv/errfuns/eoverflow.S
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@ -2,8 +2,16 @@
.text.unlikely
eoverflow:
#ifdef __x86_64__
.leafprologue
.profilable
mov EOVERFLOW(%rip),%ecx
jmp __errfun
#elif defined(__aarch64__)
adrp x1,EOVERFLOW
ldr w0,[x1,#:lo12:EOVERFLOW]
b __errfun
#else
#error "unsupported architecture"
#endif
.endfn eoverflow,globl,hidden