forked from mirrors/linux
7cd01b08d3
We implement regs_set_return_value() and override_function_with_return() for this purpose. On powerpc, a return from a function (blr) just branches to the location contained in the link register. So, we can just update pt_regs rather than redirecting execution to a dummy function that returns. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Reviewed-by: Samuel Mendoza-Jonas <sam@mendozajonas.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
13 lines
320 B
C
13 lines
320 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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#ifndef _ASM_ERROR_INJECTION_H
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#define _ASM_ERROR_INJECTION_H
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#include <linux/compiler.h>
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#include <linux/linkage.h>
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#include <asm/ptrace.h>
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#include <asm-generic/error-injection.h>
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void override_function_with_return(struct pt_regs *regs);
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#endif /* _ASM_ERROR_INJECTION_H */
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