#0x20 — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #0x20, aggregated by home.social.
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OK so ELR_EL3 is 0xe005a98 which is inside __dl___memmove_aarch64 "ldp x10, x11, [x4, #0x20].
I think this is the address the exception would resume at, which means the *previous* instruction generated the fault. That's ldp x8, x9, [x1, #0x10].
Seems like ldp is the aarch64 equivalent of ldrd, so we're loading two 64-bit values from (x1+0x10) and writing to x8 and x9.
Which means x1 must be a bad pointer.
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@helge For reference, in case it can help anyone else, putting a breakpoint in `init(0` and looking at the closest couple of stack frames, you'll see an entry like this:
#2 0x000000010063df94 in implicit closure #2 in implicit closure #1 in variable initialization expression of ReKeyApp._store ()
or
#2 0x0000000100631cdc in implicit closure #2 in implicit closure #1 in variable initialization expression of ContentView._store ()
It very helpfully tells you the class (or struct) causing the instantiation.
Would be nice if #Xcode actually selected the line in the source instead of a line in a block of assembly, but the comments in that are helpful too:
ReKey`implicit closure #2 in implicit closure #1 in variable initialization expression of ContentView._store:
0x100631cc0 <+0>: stp x20, x19, [sp, #-0x20]!
0x100631cc4 <+4>: stp x29, x30, [sp, #0x10]
0x100631cc8 <+8>: add x29, sp, #0x10
0x100631ccc <+12>: mov x0, #0x0
0x100631cd0 <+16>: bl 0x10062d700 ; type metadata accessor for ReKey.Store at <compiler-generated>
0x100631cd4 <+20>: mov x20, x0
0x100631cd8 <+24>: bl 0x100623770 ; ReKey.Store.__allocating_init() -> ReKey.Store at Store.swift:43
-> 0x100631cdc <+28>: ldp x29, x30, [sp, #0x10]
0x100631ce0 <+32>: ldp x20, x19, [sp], #0x20
0x100631ce4 <+36>: ret -
@helge For reference, in case it can help anyone else, putting a breakpoint in `init(0` and looking at the closest couple of stack frames, you'll see an entry like this:
#2 0x000000010063df94 in implicit closure #2 in implicit closure #1 in variable initialization expression of ReKeyApp._store ()
or
#2 0x0000000100631cdc in implicit closure #2 in implicit closure #1 in variable initialization expression of ContentView._store ()
It very helpfully tells you the class (or struct) causing the instantiation.
Would be nice if #Xcode actually selected the line in the source instead of a line in a block of assembly, but the comments in that are helpful too:
ReKey`implicit closure #2 in implicit closure #1 in variable initialization expression of ContentView._store:
0x100631cc0 <+0>: stp x20, x19, [sp, #-0x20]!
0x100631cc4 <+4>: stp x29, x30, [sp, #0x10]
0x100631cc8 <+8>: add x29, sp, #0x10
0x100631ccc <+12>: mov x0, #0x0
0x100631cd0 <+16>: bl 0x10062d700 ; type metadata accessor for ReKey.Store at <compiler-generated>
0x100631cd4 <+20>: mov x20, x0
0x100631cd8 <+24>: bl 0x100623770 ; ReKey.Store.__allocating_init() -> ReKey.Store at Store.swift:43
-> 0x100631cdc <+28>: ldp x29, x30, [sp, #0x10]
0x100631ce0 <+32>: ldp x20, x19, [sp], #0x20
0x100631ce4 <+36>: ret -
@helge For reference, in case it can help anyone else, putting a breakpoint in `init(0` and looking at the closest couple of stack frames, you'll see an entry like this:
#2 0x000000010063df94 in implicit closure #2 in implicit closure #1 in variable initialization expression of ReKeyApp._store ()
or
#2 0x0000000100631cdc in implicit closure #2 in implicit closure #1 in variable initialization expression of ContentView._store ()
It very helpfully tells you the class (or struct) causing the instantiation.
Would be nice if #Xcode actually selected the line in the source instead of a line in a block of assembly, but the comments in that are helpful too:
ReKey`implicit closure #2 in implicit closure #1 in variable initialization expression of ContentView._store:
0x100631cc0 <+0>: stp x20, x19, [sp, #-0x20]!
0x100631cc4 <+4>: stp x29, x30, [sp, #0x10]
0x100631cc8 <+8>: add x29, sp, #0x10
0x100631ccc <+12>: mov x0, #0x0
0x100631cd0 <+16>: bl 0x10062d700 ; type metadata accessor for ReKey.Store at <compiler-generated>
0x100631cd4 <+20>: mov x20, x0
0x100631cd8 <+24>: bl 0x100623770 ; ReKey.Store.__allocating_init() -> ReKey.Store at Store.swift:43
-> 0x100631cdc <+28>: ldp x29, x30, [sp, #0x10]
0x100631ce0 <+32>: ldp x20, x19, [sp], #0x20
0x100631ce4 <+36>: ret -
@helge For reference, in case it can help anyone else, putting a breakpoint in `init(0` and looking at the closest couple of stack frames, you'll see an entry like this:
#2 0x000000010063df94 in implicit closure #2 in implicit closure #1 in variable initialization expression of ReKeyApp._store ()
or
#2 0x0000000100631cdc in implicit closure #2 in implicit closure #1 in variable initialization expression of ContentView._store ()
It very helpfully tells you the class (or struct) causing the instantiation.
Would be nice if #Xcode actually selected the line in the source instead of a line in a block of assembly, but the comments in that are helpful too:
ReKey`implicit closure #2 in implicit closure #1 in variable initialization expression of ContentView._store:
0x100631cc0 <+0>: stp x20, x19, [sp, #-0x20]!
0x100631cc4 <+4>: stp x29, x30, [sp, #0x10]
0x100631cc8 <+8>: add x29, sp, #0x10
0x100631ccc <+12>: mov x0, #0x0
0x100631cd0 <+16>: bl 0x10062d700 ; type metadata accessor for ReKey.Store at <compiler-generated>
0x100631cd4 <+20>: mov x20, x0
0x100631cd8 <+24>: bl 0x100623770 ; ReKey.Store.__allocating_init() -> ReKey.Store at Store.swift:43
-> 0x100631cdc <+28>: ldp x29, x30, [sp, #0x10]
0x100631ce0 <+32>: ldp x20, x19, [sp], #0x20
0x100631ce4 <+36>: ret -
@helge For reference, in case it can help anyone else, putting a breakpoint in `init(0` and looking at the closest couple of stack frames, you'll see an entry like this:
#2 0x000000010063df94 in implicit closure #2 in implicit closure #1 in variable initialization expression of ReKeyApp._store ()
or
#2 0x0000000100631cdc in implicit closure #2 in implicit closure #1 in variable initialization expression of ContentView._store ()
It very helpfully tells you the class (or struct) causing the instantiation.
Would be nice if #Xcode actually selected the line in the source instead of a line in a block of assembly, but the comments in that are helpful too:
ReKey`implicit closure #2 in implicit closure #1 in variable initialization expression of ContentView._store:
0x100631cc0 <+0>: stp x20, x19, [sp, #-0x20]!
0x100631cc4 <+4>: stp x29, x30, [sp, #0x10]
0x100631cc8 <+8>: add x29, sp, #0x10
0x100631ccc <+12>: mov x0, #0x0
0x100631cd0 <+16>: bl 0x10062d700 ; type metadata accessor for ReKey.Store at <compiler-generated>
0x100631cd4 <+20>: mov x20, x0
0x100631cd8 <+24>: bl 0x100623770 ; ReKey.Store.__allocating_init() -> ReKey.Store at Store.swift:43
-> 0x100631cdc <+28>: ldp x29, x30, [sp, #0x10]
0x100631ce0 <+32>: ldp x20, x19, [sp], #0x20
0x100631ce4 <+36>: ret -
Zwiększona odporność na fałszowanie DNS przez kodowanie bitu 0x20 ( https://nfsec.pl/security/6131 ) #dns #security #0x20
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Water Switch Lamp Illuminates Current Flow - They always told you not to mix water and electricity. And while yes, that is good general advice ... more: https://hackaday.com/2020/01/31/water-switch-lamp-illuminates-current-flow/ #classichacks #salineswitch #20wattleds #saltwater #acrylic #0x20 #lamp