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authorTimothy M. Jones <tjones1@inf.ed.ac.uk>2009-10-24 10:53:58 -0700
committerTimothy M. Jones <tjones1@inf.ed.ac.uk>2009-10-24 10:53:58 -0700
commit03da1e53c24aa86a3b04216c3d2d002fd9020ea0 (patch)
tree8b562fe53646a789df61bf514669a1b60bd08777 /tests
parentcc21f862e2d6ad6ba8d5332d6bbc05e58e55bfa0 (diff)
downloadgem5-03da1e53c24aa86a3b04216c3d2d002fd9020ea0.tar.xz
syscall: Zero out memory that already exists during the brk system call.
Glibc often assumes that memory it receives from the kernel after a brk system call will contain only zeros. This is important during a calloc, because it won't clear the new memory itself. In the simulator, if the new page exists, it will be cleared using this patch, to mimic the kernel's functionality.
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