From: Rich Felker <dalias@aerifal.cx>
Date: Sat, 18 Aug 2012 01:23:10 +0000 (-0400)
Subject: crt1 must align stack pointer on mips
X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=commitdiff_plain;h=259071c249643ecb5e6799422d45d053cb64d515

crt1 must align stack pointer on mips

it's naturally aligned when entered with the kernel argv array, but if
ld.so has been invoked explicitly to run a program, the stack will not
be aligned due to having thrown away argv[0].
---

diff --git a/crt/mips/crt1.s b/crt/mips/crt1.s
index bdb7c1a7..093d7d56 100644
--- a/crt/mips/crt1.s
+++ b/crt/mips/crt1.s
@@ -14,6 +14,7 @@ _start:
 	lw      $5, ($sp)                # Get argc...
 	addu    $6, $sp, 4               # and argv ...
 	lw      $7, %call16(_init)($gp)  # and _init() ...
+	and     $sp, $sp, -8             # Align the stack pointer to 8 bytes
 	addi    $sp, $sp, -4*6           # Leave space for arguments 0..3, arg4, and arg5.
 	lw      $12, %call16(_fini)($gp) # and _fini() ...
 	sw      $12, 4*4($sp)            # Save arg4.