89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/*
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* File : lib/libelf/info.c
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* Synopsis : Utility library for handling ELF files (info functions)
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* Author : Carl Shaw <carl.shaw@st.com>
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* Author : Giuseppe Condorelli <giuseppe.condorelli@st.com>
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*
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* Copyright (c) 2008 STMicroelectronics Limited.
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*
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*/
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#include <linux/libelf.h>
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/* Useful for debug, this function shows elf header informations */
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void ELF_printHeaderInfo(const struct ELFinfo *elfinfo)
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{
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char *typestr[] = {"NONE", "REL", "EXEC", "DYN", "CORE"};
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char *osstr[] = {"NONE", "HPUX", "NETBSD", "Linux", "unknown",
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"unknown", "Solaris", "AIX", "IRIX", "FreeBSD",
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"TRU64", "Modesto", "OpenBSD", "OpenVMS", "NSK"};
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if ((elfinfo->header)->e_type <= 4)
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printk(KERN_INFO"type : %s\n",
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typestr[(elfinfo->header)->e_type]);
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else
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printk(KERN_INFO"type : %u\n", (elfinfo->header)->e_type);
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printk(KERN_INFO"machine : %u\n", (elfinfo->header)->e_machine);
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printk(KERN_INFO"entry : 0x%08x\n", (elfinfo->header)->e_entry);
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printk(KERN_INFO"flags : %u\n", (elfinfo->header)->e_flags);
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printk(KERN_INFO"sections : %u\n", elfinfo->numsections);
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printk(KERN_INFO"segments : %u\n", elfinfo->numpheaders);
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printk(KERN_INFO"format : %s %s\n",
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((elfinfo->header)->e_ident[EI_CLASS] == ELFCLASS32) ?
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"32 bit" : "64 bit",
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((elfinfo->header)->e_ident[EI_DATA] == ELFDATA2LSB) ?
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"little endian" : "big endian");
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if ((elfinfo->header)->e_ident[EI_OSABI] < 15)
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printk(KERN_INFO"OS : %s\n",
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osstr[(elfinfo->header)->e_ident[EI_OSABI]]);
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else if ((elfinfo->header)->e_ident[EI_OSABI] == 97)
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printk(KERN_INFO"OS : ARM\n");
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else if ((elfinfo->header)->e_ident[EI_OSABI] == 255)
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printk(KERN_INFO"OS : STANDALONE\n");
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}
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EXPORT_SYMBOL(ELF_printHeaderInfo);
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/* Useful for debug, this function shows elf section informations */
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void ELF_printSectionInfo(const struct ELFinfo *elfinfo)
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{
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uint32_t i, n;
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char *str, *type = NULL;
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Elf32_Shdr *sec;
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char flags[10];
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struct typess elftypes[] = {ELF_TYPES};
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printk(KERN_INFO"Number of sections: %u\n", elfinfo->numsections);
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for (i = 0; i < elfinfo->numsections; i++) {
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sec = ELF_getSectionByIndex(elfinfo, i);
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if (*str == '\0')
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str = "<no name>";
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str = elfinfo->strtab + sec->sh_name;
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for (n = 0; elftypes[n].name != NULL; n++) {
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if (elftypes[n].val == sec->sh_type)
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type = elftypes[n].name;
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}
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if (!type)
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type = "UNKNOWN";
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n = 0;
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if (sec->sh_flags & SHF_WRITE)
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flags[n++] = 'W';
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else if (sec->sh_flags & SHF_ALLOC)
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flags[n++] = 'A';
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else if (sec->sh_flags & SHF_EXECINSTR)
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flags[n++] = 'X';
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else if (sec->sh_flags & SHF_MERGE)
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flags[n++] = 'M';
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else if (sec->sh_flags & SHF_STRINGS)
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flags[n++] = 'S';
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flags[n] = '\0';
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printk(KERN_INFO"[%02u] %s %s %s \n", i, str, type, flags);
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}
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}
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EXPORT_SYMBOL(ELF_printSectionInfo);
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