Blame src/meta/pe_get_symbol_module_info.c

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/*****************************************************************************/
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/*  pemagination: a (virtual) tour into portable bits and executable bytes   */
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/*  Copyright (C) 2013--2020  SysDeer Technologies, LLC                      */
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/*  Released under GPLv2 and GPLv3; see COPYING.PEMAGINE.                    */
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/*****************************************************************************/
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#include <psxtypes/psxtypes.h>
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#include <pemagine/pemagine.h>
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struct pe_module_info_ctx {
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	uintptr_t			sym_addr;
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	struct pe_ldr_tbl_entry *	image_ldr_tbl_entry;
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};
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static int pe_get_symbol_module_info_callback(
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	struct pe_ldr_tbl_entry *	ldr_tbl_entry,
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	enum pe_callback_reason		reason,
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	void *				context)
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{
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	uintptr_t			image_base;
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	uintptr_t			image_size;
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	struct pe_module_info_ctx *	ctx;
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	if (reason != PE_CALLBACK_REASON_ITEM)
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		return 1;
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	ctx = (struct pe_module_info_ctx *)context;
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	image_base = (uintptr_t)(ldr_tbl_entry->dll_base);
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	image_size = (uintptr_t)(ldr_tbl_entry->size_of_image);
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	if ((ctx->sym_addr > image_base) && (ctx->sym_addr < image_base + image_size)) {
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		/* within bounds */
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		ctx->image_ldr_tbl_entry = ldr_tbl_entry;
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		return 0;
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	} else
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		return 1;
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}
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struct pe_ldr_tbl_entry * pe_get_symbol_module_info(const void * sym_addr)
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{
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	struct pe_module_info_ctx ctx;
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	ctx.sym_addr = (uintptr_t)sym_addr;
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	ctx.image_ldr_tbl_entry = 0;
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	pe_enum_modules_in_load_order(
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		pe_get_symbol_module_info_callback,
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		&ctx;;
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	return ctx.image_ldr_tbl_entry;
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}