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Code Issues Releases Activity

thermosphere: Fix wrong register allocation

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TuxSH 2019-07-30 02:16:25 +02:00
parent 61b6f06766
commit ad6db14526
1 changed files with 2 additions and 5 deletions
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7
thermosphere/src/start.s
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@ -58,9 +58,6 @@ _startCommon:
dsb sy dsb sy
isb isb
// Mov x20 (and no other register (?)) with != 0 is needed to unfuck QEMU's JIT
mov x20, #0x31
// Get core ID // Get core ID
mrs x10, mpidr_el1 mrs x10, mpidr_el1
and x10, x10, #0xFF and x10, x10, #0xFF
@ -73,7 +70,7 @@ _startCommon:
// Set up x18 // Set up x18
adrp x18, g_coreCtxs adrp x18, g_coreCtxs
add x18, x18, #:lo12:g_coreCtxs add x18, x18, #:lo12:g_coreCtxs
add x18, x18, x20, lsl #3 add x18, x18, x10, lsl #3
stp x18, xzr, [sp, #-0x10]! stp x18, xzr, [sp, #-0x10]!
// Store entrypoint if first core // Store entrypoint if first core
@ -86,7 +83,7 @@ _store_arg:
// Don't call init array to save space? // Don't call init array to save space?
// Clear BSS & call main for the first core executing this code // Clear BSS & call main for the first core executing this code
cbz x20, _jump_to_main cbz x19, _jump_to_main
ldr x0, =__bss_start__ ldr x0, =__bss_start__
mov w1, #0 mov w1, #0
ldr x2, =__end__ ldr x2, =__end__