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start: Explicitly clear the link register on mips and mips64 just in case.

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The kernel does this as required, but we cannot trust dynamic linkers to do it.
This commit is contained in:
Alex Rønne Petersen 2024-07-24 17:41:18 +02:00
parent 1b13d7477d
commit 47c0464e86
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1 changed files with 4 additions and 4 deletions
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8
lib/std/start.zig
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@ -329,8 +329,8 @@ fn _start() callconv(.Naked) noreturn {
\\ jsr (%%pc, %%a0)
,
.mips, .mipsel =>
// The lr is already zeroed on entry, as specified by the ABI.
\\ addiu $fp, $zero, 0
\\ move $fp, $0
\\ move $ra, $0
\\ move $a0, $sp
\\ .set push
\\ .set noat
@ -340,8 +340,8 @@ fn _start() callconv(.Naked) noreturn {
\\ j %[posixCallMainAndExit]
,
.mips64, .mips64el =>
// The lr is already zeroed on entry, as specified by the ABI.
\\ addiu $fp, $zero, 0
\\ move $fp, $0
\\ move $ra, $0
\\ move $a0, $sp
\\ .set push
\\ .set noat