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clone: align the given stack pointer on or1k and riscv

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This was an oversight specific to these archs; others have always
aligned the new stack pointer correctly.
This commit is contained in:
Alex Rønne Petersen
2025-02-08 05:39:59 +01:00
committed by Rich Felker
parent 06c5e4e832
commit 5e03c03fcd
3 changed files with 4 additions and 0 deletions
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2
src/thread/or1k/clone.s
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@@ -6,6 +6,8 @@
.hidden __clone
.type __clone,@function
__clone:
l.xori r11, r0, -4
l.and r4, r4, r11
l.addi r4, r4, -8
l.sw 0(r4), r3
l.sw 4(r4), r6

1
src/thread/riscv32/clone.s
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@@ -8,6 +8,7 @@
.type __clone, %function
__clone:
# Save func and arg to stack
andi a1, a1, -16
addi a1, a1, -16
sw a0, 0(a1)
sw a3, 4(a1)

1
src/thread/riscv64/clone.s
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@@ -8,6 +8,7 @@
.type __clone, %function
__clone:
# Save func and arg to stack
andi a1, a1, -16
addi a1, a1, -16
sd a0, 0(a1)
sd a3, 8(a1)