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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2016 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2022 Amazon.com, Inc. or its affiliates.
* All Rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
*/
#ifndef OPAL_PATCHER_BASE_H
#define OPAL_PATCHER_BASE_H
#include "opal_config.h"
#include "opal/opal_portable_platform.h"
#include "opal/mca/base/mca_base_framework.h"
#include "opal/mca/patcher/patcher.h"
BEGIN_C_DECLS
#define MCA_BASE_PATCHER_MAX_PATCH 32
struct mca_patcher_base_patch_t;
typedef void (*mca_patcher_base_restore_fn_t)(struct mca_patcher_base_patch_t *);
struct mca_patcher_base_patch_t {
/** patches are list items */
opal_list_item_t super;
/** name symbol to patch */
char *patch_symbol;
/** address of function to call instead */
uintptr_t patch_value;
/** original address of function */
uintptr_t patch_orig;
/** patch data */
unsigned char patch_data[MCA_BASE_PATCHER_MAX_PATCH];
/** original data */
unsigned char patch_orig_data[MCA_BASE_PATCHER_MAX_PATCH];
/** size of patch data */
unsigned patch_data_size;
/** function to undo the patch */
mca_patcher_base_restore_fn_t patch_restore;
};
typedef struct mca_patcher_base_patch_t mca_patcher_base_patch_t;
OBJ_CLASS_DECLARATION(mca_patcher_base_patch_t);
/**
* Framework struct declaration for this framework
*/
OPAL_DECLSPEC extern mca_base_framework_t opal_patcher_base_framework;
OPAL_DECLSPEC int opal_patcher_base_select(void);
OPAL_DECLSPEC int opal_patcher_base_restore_all(void);
OPAL_DECLSPEC int mca_patcher_base_patch_hook(mca_patcher_base_module_t *module, uintptr_t hook);
OPAL_DECLSPEC void mca_base_patcher_patch_apply_binary(mca_patcher_base_patch_t *patch);
static inline uintptr_t mca_patcher_base_addr_text(uintptr_t addr)
{
#if defined(PLATFORM_ARCH_POWERPC) && defined(PLATFORM_ARCH_64) && (!defined(_CALL_ELF) || (_CALL_ELF != 2))
struct odp_t {
uintptr_t text;
uintptr_t toc;
} *odp = (struct odp_t *) addr;
return (odp) ? odp->text : 0;
#else
return addr;
#endif
}
END_C_DECLS
#endif /* OPAL_BASE_PATCHER_H */
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