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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].
This commit is contained in:
Rich Felker 2012-08-17 21:23:10 -04:00
parent efe9751468
commit 259071c249
1 changed files with 1 additions and 0 deletions
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crt/mips/crt1.s
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@ -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.