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C++ LIBELF_SET_ERROR函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中LIBELF_SET_ERROR函数的典型用法代码示例。如果您正苦于以下问题：C++ LIBELF_SET_ERROR函数的具体用法？C++ LIBELF_SET_ERROR怎么用？C++ LIBELF_SET_ERROR使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了LIBELF_SET_ERROR函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: _libelf_getshdr

void *
_libelf_getshdr(Elf_Scn *s, int ec)
{
        Elf *e;

        if (s == NULL || (e = s->s_elf) == NULL ||
            e->e_kind != ELF_K_ELF) {
                LIBELF_SET_ERROR(ARGUMENT, 0);
                return (NULL);
        }

        if (ec == ELFCLASSNONE)
                ec = e->e_class;

        if (ec != e->e_class) {
                LIBELF_SET_ERROR(CLASS, 0);
                return (NULL);
        }

        return ((void *) &s->s_shdr);
}
开发者ID:AndrewScull，项目名称:gem5，代码行数:21，代码来源:libelf_shdr.c


示例2: elf_getarhdr

Elf_Arhdr *
elf_getarhdr(Elf *e)
{
	if (e == NULL) {
		LIBELF_SET_ERROR(ARGUMENT, 0);
		return (NULL);
	}

	if (e->e_flags & LIBELF_F_AR_HEADER)
		return (e->e_hdr.e_arhdr);

	return (_libelf_ar_gethdr(e));
}
开发者ID:AAZemlyanukhin，项目名称:freebsd，代码行数:13，代码来源:elf_getarhdr.c


示例3: elf_getarsym

Elf_Arsym *
elf_getarsym(Elf *ar, size_t *ptr)
{
	size_t n;
	Elf_Arsym *symtab;

	n = 0;
	symtab = NULL;

	if (ar == NULL || ar->e_kind != ELF_K_AR)
		LIBELF_SET_ERROR(ARGUMENT, 0);
	else if ((symtab = ar->e_u.e_ar.e_symtab) != NULL)
		n = ar->e_u.e_ar.e_symtabsz;
	else if (ar->e_u.e_ar.e_rawsymtab)
		symtab = _libelf_ar_process_symtab(ar, &n);
	else
		LIBELF_SET_ERROR(ARCHIVE, 0);

	if (ptr)
		*ptr = n;
	return (symtab);
}
开发者ID:Peter-Washington，项目名称:gnupoc-package，代码行数:22，代码来源:elf_getarsym.c


示例4: elf_getbase

off_t
elf_getbase(Elf *e)
{
	if (e == NULL) {
		LIBELF_SET_ERROR(ARGUMENT, 0);
		return ((off_t) -1);
	}

	if (e->e_parent == NULL)
		return ((off_t) 0);

	return ((off_t) ((uintptr_t) e->e_rawfile -
	    (uintptr_t) e->e_parent->e_rawfile));
}
开发者ID:IIJ-NetBSD，项目名称:netbsd-src，代码行数:14，代码来源:elf_getbase.c


示例5: elf_setshstrndx

int
elf_setshstrndx(Elf *e, size_t strndx)
{
    void *eh;
    int ec;

    if (e == NULL || e->e_kind != ELF_K_ELF ||
            ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64) ||
            ((eh = _libelf_ehdr(e, ec, 0)) == NULL)) {
        LIBELF_SET_ERROR(ARGUMENT, 0);
        return (0);
    }

    return (_libelf_setshstrndx(e, eh, ec, strndx));
}
开发者ID:cyrilmagsuci，项目名称:freebsd，代码行数:15，代码来源:elf_shstrndx.c


示例6: elf_getarhdr

Elf_Arhdr *
elf_getarhdr(Elf *e)
{
	Elf_Arhdr *arh;

	if (e == NULL) {
		LIBELF_SET_ERROR(ARGUMENT, 0);
		return (NULL);
	}

	if ((arh = e->e_arhdr) != NULL)
		return (arh);

	return (_libelf_ar_gethdr(e));
}
开发者ID:MattDooner，项目名称:freebsd-west，代码行数:15，代码来源:elf_getarhdr.c


示例7: _libelf_ar_get_string

/*
 * Retrieve a string from a name field.  If `rawname' is set, leave
 * ar(1) control characters in.
 */
char *
_libelf_ar_get_string(const char *buf, size_t bufsize, int rawname)
{
	const char *q;
	char *r;
	size_t sz;

	if (rawname)
		sz = bufsize + 1;
	else {
		/* Skip back over trailing blanks. */
		for (q = buf + bufsize - 1; q >= buf && *q == ' '; --q)
			;

		if (q < buf) {
			/*
			 * If the input buffer only had blanks in it,
			 * return a zero-length string.
			 */
			buf = "";
			sz = 1;
		} else {
			/*
			 * Remove the trailing '/' character, but only
			 * if the name isn't one of the special names
			 * "/" and "//".
			 */
			if (q > buf + 1 ||
			    (q == (buf + 1) && *buf != '/'))
				q--;

			sz = q - buf + 2; /* Space for a trailing NUL. */
		}
	}

	if ((r = malloc(sz)) == NULL) {
		LIBELF_SET_ERROR(RESOURCE, 0);
		return (NULL);
	}

	(void) strncpy(r, buf, sz);
	r[sz - 1] = '\0';

	return (r);
}
开发者ID:AhmadTux，项目名称:freebsd，代码行数:49，代码来源:libelf_ar_util.c


示例8: elf_version

unsigned int
elf_version(unsigned int v)
{
	unsigned int old;

	if ((old = LIBELF_PRIVATE(version)) == EV_NONE)
		old = EV_CURRENT;

	if (v == EV_NONE)
		return old;
	if (v > EV_CURRENT) {
		LIBELF_SET_ERROR(VERSION, 0);
		return EV_NONE;
	}

	LIBELF_PRIVATE(version) = v;
	return (old);
}
开发者ID:0mp，项目名称:freebsd，代码行数:18，代码来源:elf_version.c


示例9: gelf_getehdr

GElf_Ehdr *
gelf_getehdr(Elf *e, GElf_Ehdr *d)
{
	int ec;
	Elf32_Ehdr *eh32;
	Elf64_Ehdr *eh64;

	if (d == NULL || e == NULL ||
	    ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
		LIBELF_SET_ERROR(ARGUMENT, 0);
		return (NULL);
	}

	if (ec == ELFCLASS32) {
		if ((eh32 = _libelf_ehdr(e, ELFCLASS32, 0)) == NULL)
			return (NULL);

		(void) memcpy(d->e_ident, eh32->e_ident,
		    sizeof(eh32->e_ident));
		d->e_type		= eh32->e_type;
		d->e_machine		= eh32->e_machine;
		d->e_version		= eh32->e_version;
		d->e_entry		= eh32->e_entry;
		d->e_phoff		= eh32->e_phoff;
		d->e_shoff		= eh32->e_shoff;
		d->e_flags		= eh32->e_flags;
		d->e_ehsize		= eh32->e_ehsize;
		d->e_phentsize		= eh32->e_phentsize;
		d->e_phnum		= eh32->e_phnum;
		d->e_shentsize		= eh32->e_shentsize;
		d->e_shnum		= eh32->e_shnum;
		d->e_shstrndx		= eh32->e_shstrndx;

		return (d);
	}

	assert(ec == ELFCLASS64);

	if ((eh64 = _libelf_ehdr(e, ELFCLASS64, 0)) == NULL)
		return (NULL);
	*d = *eh64;

	return (d);
}
开发者ID:Henauxg，项目名称:minix，代码行数:44，代码来源:gelf_ehdr.c


示例10: _libelf_getshdrnum

static int
_libelf_getshdrnum(Elf *e, size_t *shnum)
{
	void *eh;
	int ec;

	if (e == NULL || e->e_kind != ELF_K_ELF ||
	    ((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) {
		LIBELF_SET_ERROR(ARGUMENT, 0);
		return (-1);
	}

	if ((eh = _libelf_ehdr(e, ec, 0)) == NULL)
		return (-1);

	*shnum = e->e_u.e_elf.e_nscn;

	return (0);
}
开发者ID:RandomDeveloperM，项目名称:UE4_Hairworks，代码行数:19，代码来源:elf_shnum.c


示例11: _libelf_ar_open_member

Elf *
_libelf_ar_open_member(int fd, Elf_Cmd c, Elf *elf)
{
	Elf *e;
	off_t next;
	struct ar_hdr *arh;
	size_t sz;

	assert(elf->e_kind == ELF_K_AR);

	next = elf->e_u.e_ar.e_next;

	/*
	 * `next' is only set to zero by elf_next() when the last
	 * member of an archive is processed.
	 */
	if (next == (off_t) 0)
		return (NULL);

	assert((next & 1) == 0);

	arh = (struct ar_hdr *) (elf->e_rawfile + next);

	if (_libelf_ar_get_number(arh->ar_size, sizeof(arh->ar_size), 10, &sz) == 0) {
		LIBELF_SET_ERROR(ARCHIVE, 0);
		return (NULL);
	}

	assert(sz > 0);

	arh++;	/* skip over archive member header */

	if ((e = elf_memory((char *) arh, sz)) == NULL)
		return (NULL);

	e->e_fd = fd;
	e->e_cmd = c;

	elf->e_u.e_ar.e_nchildren++;
	e->e_parent = elf;

	return (e);
}
开发者ID:ele7enxxh，项目名称:dtrace-pf，代码行数:43，代码来源:libelf_ar.c


示例12: elf_flagarhdr

unsigned int
elf_flagarhdr(Elf_Arhdr *a, Elf_Cmd c, unsigned int flags)
{
	unsigned int r;

	if (a == NULL)
		return (0);

	if ((c != ELF_C_SET && c != ELF_C_CLR) ||
	    (flags & ~ELF_F_DIRTY) != 0) {
		LIBELF_SET_ERROR(ARGUMENT, 0);
		return (0);
	}

	if (c == ELF_C_SET)
		r = a->ar_flags |= flags;
	else
		r = a->ar_flags &= ~flags;

	return (r & LIBELF_F_API_MASK);
}
开发者ID:0mp，项目名称:freebsd，代码行数:21，代码来源:elf_flag.c


示例13: gelf_getshdr

GElf_Shdr *
gelf_getshdr(Elf_Scn *s, GElf_Shdr *d)
{
	int ec;
	void *sh;
	Elf32_Shdr *sh32;
	Elf64_Shdr *sh64;

	if (d == NULL) {
		LIBELF_SET_ERROR(ARGUMENT, 0);
		return (NULL);
	}

	if ((sh = _libelf_getshdr(s, ELFCLASSNONE)) == NULL)
		return (NULL);

	ec = s->s_elf->e_class;
	assert(ec == ELFCLASS32 || ec == ELFCLASS64);

	if (ec == ELFCLASS32) {
		sh32 = (Elf32_Shdr *) sh;

		d->sh_name      = sh32->sh_name;
		d->sh_type      = sh32->sh_type;
		d->sh_flags     = (Elf64_Xword) sh32->sh_flags;
		d->sh_addr      = (Elf64_Addr) sh32->sh_addr;
		d->sh_offset    = (Elf64_Off) sh32->sh_offset;
		d->sh_size      = (Elf64_Xword) sh32->sh_size;
		d->sh_link      = sh32->sh_link;
		d->sh_info      = sh32->sh_info;
		d->sh_addralign = (Elf64_Xword) sh32->sh_addralign;
		d->sh_entsize   = (Elf64_Xword) sh32->sh_entsize;
	} else {
		sh64 = (Elf64_Shdr *) sh;
		*d = *sh64;
	}

	return (d);
}
开发者ID:AhmadTux，项目名称:freebsd，代码行数:39，代码来源:gelf_shdr.c


示例14: elf_newdata

Elf_Data *
elf_newdata(Elf_Scn *s)
{
	Elf *e;
	struct _Libelf_Data *d;

	if (s == NULL || (e = s->s_elf) == NULL) {
		LIBELF_SET_ERROR(ARGUMENT, 0);
		return (NULL);
	}

	assert(e->e_kind == ELF_K_ELF);

	/*
	 * elf_newdata() has to append a data descriptor, so
	 * bring in existing section data if not already present.
	 */
	if (e->e_rawfile && s->s_size > 0 && STAILQ_EMPTY(&s->s_data))
		if (elf_getdata(s, NULL) == NULL)
			return (NULL);

	if ((d = _libelf_allocate_data(s)) == NULL)
		return (NULL);

	STAILQ_INSERT_TAIL(&s->s_data, d, d_next);

	d->d_data.d_align = 1;
	d->d_data.d_buf = NULL;
	d->d_data.d_off = (uint64_t) ~0;
	d->d_data.d_size = 0;
	d->d_data.d_type = ELF_T_BYTE;
	d->d_data.d_version = LIBELF_PRIVATE(version);

	(void) elf_flagscn(s, ELF_C_SET, ELF_F_DIRTY);

	return (&d->d_data);
}
开发者ID:RandomDeveloperM，项目名称:UE4_Hairworks，代码行数:37，代码来源:elf_data.c


示例15: elf_flagdata

unsigned int
elf_flagdata(Elf_Data *d, Elf_Cmd c, unsigned int flags)
{
	unsigned int r;
	struct _Libelf_Data *ld;

	if (d == NULL)
		return (0);

	if ((c != ELF_C_SET && c != ELF_C_CLR) ||
	    (flags & ~ELF_F_DIRTY) != 0) {
		LIBELF_SET_ERROR(ARGUMENT, 0);
		return (0);
	}

	ld = (struct _Libelf_Data *) d;

	if (c == ELF_C_SET)
		r = ld->d_flags |= flags;
	else
		r = ld->d_flags &= ~flags;

	return (r & LIBELF_F_API_MASK);
}
开发者ID:0mp，项目名称:freebsd，代码行数:24，代码来源:elf_flag.c


示例16: elf_getdata

Elf_Data *
elf_getdata(Elf_Scn *s, Elf_Data *ed)
{
	Elf *e;
	unsigned int sh_type;
	int elfclass, elftype;
	size_t fsz, msz, count;
	struct _Libelf_Data *d;
	uint64_t sh_align, sh_offset, sh_size;
	int (*xlate)(char *_d, size_t _dsz, char *_s, size_t _c, int _swap);

	d = (struct _Libelf_Data *) ed;

	if (s == NULL || (e = s->s_elf) == NULL ||
	    (d != NULL && s != d->d_scn)) {
		LIBELF_SET_ERROR(ARGUMENT, 0);
		return (NULL);
	}

	assert(e->e_kind == ELF_K_ELF);

	if (d == NULL && (d = STAILQ_FIRST(&s->s_data)) != NULL)
		return (&d->d_data);

	if (d != NULL)
		return (&STAILQ_NEXT(d, d_next)->d_data);

	if (e->e_rawfile == NULL) {
		/*
		 * In the ELF_C_WRITE case, there is no source that
		 * can provide data for the section.
		 */
		LIBELF_SET_ERROR(ARGUMENT, 0);
		return (NULL);
	}

	elfclass = e->e_class;

	assert(elfclass == ELFCLASS32 || elfclass == ELFCLASS64);

	if (elfclass == ELFCLASS32) {
		sh_type   = s->s_shdr.s_shdr32.sh_type;
		sh_offset = (uint64_t) s->s_shdr.s_shdr32.sh_offset;
		sh_size   = (uint64_t) s->s_shdr.s_shdr32.sh_size;
		sh_align  = (uint64_t) s->s_shdr.s_shdr32.sh_addralign;
	} else {
		sh_type   = s->s_shdr.s_shdr64.sh_type;
		sh_offset = s->s_shdr.s_shdr64.sh_offset;
		sh_size   = s->s_shdr.s_shdr64.sh_size;
		sh_align  = s->s_shdr.s_shdr64.sh_addralign;
	}

	if (sh_type == SHT_NULL) {
		LIBELF_SET_ERROR(SECTION, 0);
		return (NULL);
	}

	if ((elftype = _libelf_xlate_shtype(sh_type)) < ELF_T_FIRST ||
	    elftype > ELF_T_LAST || (sh_type != SHT_NOBITS &&
	    sh_offset + sh_size > (uint64_t) e->e_rawsize)) {
		LIBELF_SET_ERROR(SECTION, 0);
		return (NULL);
	}

	if ((fsz = (elfclass == ELFCLASS32 ? elf32_fsize : elf64_fsize)
            (elftype, (size_t) 1, e->e_version)) == 0) {
		LIBELF_SET_ERROR(UNIMPL, 0);
		return (NULL);
	}

	if (sh_size % fsz) {
		LIBELF_SET_ERROR(SECTION, 0);
		return (NULL);
	}

	count = sh_size / fsz;

	msz = _libelf_msize(elftype, elfclass, e->e_version);

	assert(msz > 0);

	if ((d = _libelf_allocate_data(s)) == NULL)
		return (NULL);

	d->d_data.d_buf     = NULL;
	d->d_data.d_off     = 0;
	d->d_data.d_align   = sh_align;
	d->d_data.d_size    = msz * count;
	d->d_data.d_type    = elftype;
	d->d_data.d_version = e->e_version;

	if (sh_type == SHT_NOBITS || sh_size == 0) {
	        STAILQ_INSERT_TAIL(&s->s_data, d, d_next);
		return (&d->d_data);
        }

	if ((d->d_data.d_buf = malloc(msz*count)) == NULL) {
		(void) _libelf_release_data(d);
		LIBELF_SET_ERROR(RESOURCE, 0);
		return (NULL);
//.........这里部分代码省略.........
开发者ID:RandomDeveloperM，项目名称:UE4_Hairworks，代码行数:101，代码来源:elf_data.c


示例17: _libelf_xlate

Elf_Data *
_libelf_xlate(Elf_Data *dst, const Elf_Data *src, unsigned int encoding,
              int elfclass, int direction)
{
    int byteswap;
    size_t cnt, dsz, fsz, msz;
    uintptr_t sb, se, db, de;

    if (encoding == ELFDATANONE)
        encoding = LIBELF_PRIVATE(byteorder);

    if ((encoding != ELFDATA2LSB && encoding != ELFDATA2MSB) ||
            dst == NULL || src == NULL || dst == src)	{
        LIBELF_SET_ERROR(ARGUMENT, 0);
        return (NULL);
    }

    assert(elfclass == ELFCLASS32 || elfclass == ELFCLASS64);
    assert(direction == ELF_TOFILE || direction == ELF_TOMEMORY);

    if (dst->d_version != src->d_version) {
        LIBELF_SET_ERROR(UNIMPL, 0);
        return (NULL);
    }

    if  (src->d_buf == NULL || dst->d_buf == NULL) {
        LIBELF_SET_ERROR(DATA, 0);
        return (NULL);
    }

    if ((int) src->d_type < 0 || src->d_type >= ELF_T_NUM) {
        LIBELF_SET_ERROR(DATA, 0);
        return (NULL);
    }

    if ((fsz = (elfclass == ELFCLASS32 ? elf32_fsize : elf64_fsize)
               (src->d_type, (size_t) 1, src->d_version)) == 0)
        return (NULL);

    msz = _libelf_msize(src->d_type, elfclass, src->d_version);

    assert(msz > 0);

    if (src->d_size % (direction == ELF_TOMEMORY ? fsz : msz)) {
        LIBELF_SET_ERROR(DATA, 0);
        return (NULL);
    }

    /*
     * Determine the number of objects that need to be converted, and
     * the space required for the converted objects in the destination
     * buffer.
     */
    if (direction == ELF_TOMEMORY) {
        cnt = src->d_size / fsz;
        dsz = cnt * msz;
    } else {
        cnt = src->d_size / msz;
        dsz = cnt * fsz;
    }

    if (dst->d_size  <  dsz) {
        LIBELF_SET_ERROR(DATA, 0);
        return (NULL);
    }

    sb = (uintptr_t) src->d_buf;
    se = sb + src->d_size;
    db = (uintptr_t) dst->d_buf;
    de = db + dst->d_size;

    /*
     * Check for overlapping buffers.  Note that db == sb is
     * allowed.
     */
    if (db != sb && de > sb && se > db) {
        LIBELF_SET_ERROR(DATA, 0);
        return (NULL);
    }

    if ((direction == ELF_TOMEMORY ? db : sb) %
            _libelf_malign(src->d_type, elfclass)) {
        LIBELF_SET_ERROR(DATA, 0);
        return (NULL);
    }

    dst->d_type = src->d_type;
    dst->d_size = dsz;

    byteswap = encoding != LIBELF_PRIVATE(byteorder);

    if (src->d_size == 0 ||
            (db == sb && !byteswap && fsz == msz))
        return (dst);	/* nothing more to do */

    if (!(_libelf_get_translator(src->d_type, direction, elfclass))
            (dst->d_buf, dsz, src->d_buf, cnt, byteswap)) {
        LIBELF_SET_ERROR(DATA, 0);
        return (NULL);
    }
//.........这里部分代码省略.........
开发者ID:blacklion，项目名称:pkg，代码行数:101，代码来源:libelf_xlate.c


示例18: elf_begin

Elf *
elf_begin(int fd, Elf_Cmd c, Elf *a)
{
        Elf *e;

        e = NULL;

        if (LIBELF_PRIVATE(version) == EV_NONE) {
                LIBELF_SET_ERROR(SEQUENCE, 0);
                return (NULL);
        }

        switch (c) {
        case ELF_C_NULL:
                return (NULL);

        case ELF_C_WRITE:

                if (a != NULL) { /* not allowed for ar(1) archives. */
                        LIBELF_SET_ERROR(ARGUMENT, 0);
                        return (NULL);
                }

                /*
                 * Check writeability of `fd' immediately and fail if
                 * not writeable.
                 */
                if (ftruncate(fd, (off_t) 0) < 0) {
                        LIBELF_SET_ERROR(IO, errno);
                        return (NULL);
                }

                if ((e = _libelf_allocate_elf()) != NULL) {
                        _libelf_init_elf(e, ELF_K_ELF);
                        e->e_byteorder = LIBELF_PRIVATE(byteorder);
                        e->e_fd = fd;
                        e->e_cmd = c;
                }
                return (e);

        case ELF_C_RDWR:
                if (a != NULL) { /* not allowed for ar(1) archives. */
                        LIBELF_SET_ERROR(ARGUMENT, 0);
                        return (NULL);
                }
                /*FALLTHROUGH*/
        case ELF_C_READ:
                /*
                 * Descriptor `a' could be for a regular ELF file, or
                 * for an ar(1) archive.
                 */
                if (a && (a->e_fd != fd || c != a->e_cmd)) {
                        LIBELF_SET_ERROR(ARGUMENT, 0);
                        return (NULL);
                }

                break;

        default:
                LIBELF_SET_ERROR(ARGUMENT, 0);
                return (NULL);

        }

        if (a == NULL)
                e = _libelf_open_object(fd, c);
        else if (a->e_kind == ELF_K_AR)
                e = _libelf_ar_open_member(fd, c, a);
        else
                (e = a)->e_activations++;

        return (e);
}
开发者ID:AndrewScull，项目名称:gem5，代码行数:73，代码来源:elf_begin.c


示例19: _libelf_getphdr

void *
_libelf_getphdr(Elf *e, int ec)
{
	size_t phnum;
	size_t fsz, msz;
	uint64_t phoff;
	Elf32_Ehdr *eh32;
	Elf64_Ehdr *eh64;
	void *ehdr, *phdr;
	void (*xlator)(char *_d, char *_s, size_t _c, int _swap);

	assert(ec == ELFCLASS32 || ec == ELFCLASS64);

	if (e == NULL) {
		LIBELF_SET_ERROR(ARGUMENT, 0);
		return (NULL);
	}

	if ((phdr = (ec == ELFCLASS32 ?
		 (void *) e->e_u.e_elf.e_phdr.e_phdr32 :
		 (void *) e->e_u.e_elf.e_phdr.e_phdr64)) != NULL)
		return (phdr);

	/*
	 * Check the PHDR related fields in the EHDR for sanity.
	 */

	if ((ehdr = _libelf_ehdr(e, ec, 0)) == NULL)
		return (NULL);

	phnum = e->e_u.e_elf.e_nphdr;

	if (ec == ELFCLASS32) {
		eh32      = (Elf32_Ehdr *) ehdr;
		phoff     = (uint64_t) eh32->e_phoff;
	} else {
		eh64      = (Elf64_Ehdr *) ehdr;
		phoff     = (uint64_t) eh64->e_phoff;
	}

	fsz = gelf_fsize(e, ELF_T_PHDR, phnum, e->e_version);

	assert(fsz > 0);

	if ((uint64_t) e->e_rawsize < (phoff + fsz)) {
		LIBELF_SET_ERROR(HEADER, 0);
		return (NULL);
	}

	msz = _libelf_msize(ELF_T_PHDR, ec, EV_CURRENT);

	assert(msz > 0);

	if ((phdr = calloc(phnum, msz)) == NULL) {
		LIBELF_SET_ERROR(RESOURCE, 0);
		return (NULL);
	}

	if (ec == ELFCLASS32)
		e->e_u.e_elf.e_phdr.e_phdr32 = phdr;
	else
		e->e_u.e_elf.e_phdr.e_phdr64 = phdr;


	xlator = _libelf_get_translator(ELF_T_PHDR, ELF_TOMEMORY, ec);
	(*xlator)(phdr, e->e_rawfile + phoff, phnum,
	    e->e_byteorder != _libelf_host_byteorder());

	return (phdr);
}
开发者ID:Bhudipta，项目名称:minix，代码行数:70，代码来源:libelf_phdr.c


示例20: _libelf_read_special_file

/*
 * Read from a device file, pipe or socket.
 */
static void *
_libelf_read_special_file(int fd, size_t *fsz)
{
	ssize_t readsz;
	size_t bufsz, datasz;
	unsigned char *buf, *t;

	datasz = 0;
	readsz = 0;
	bufsz = _LIBELF_INITSIZE;
	if ((buf = malloc(bufsz)) == NULL)
		goto resourceerror;

	/*
	 * Read data from the file descriptor till we reach EOF, or
	 * till an error is encountered.
	 */
	do {
		/* Check if we need to expand the data buffer. */
		if (datasz == bufsz) {
			bufsz *= 2;
			if ((t = realloc(buf, bufsz)) == NULL)
				goto resourceerror;
			buf = t;
		}

		do {
			readsz = bufsz - datasz;
			t = buf + datasz;
			if ((readsz = read(fd, t, readsz)) <= 0)
				break;
			datasz += readsz;
		} while (datasz < bufsz);

	} while (readsz > 0);

	if (readsz < 0) {
		LIBELF_SET_ERROR(IO, errno);
		goto error;
	}

	assert(readsz == 0);

	/*
	 * Free up extra buffer space.
	 */
	if (bufsz > datasz) {
		if (datasz > 0) {
			if ((t = realloc(buf, datasz)) == NULL)
				goto resourceerror;
			buf = t;
		} else {	/* Zero bytes read. */
			LIBELF_SET_ERROR(ARGUMENT, 0);
			free(buf);
			buf = NULL;
		}
	}

	*fsz = datasz;
	return (buf);

resourceerror:
	LIBELF_SET_ERROR(RESOURCE, 0);
error:
	if (buf != NULL)
		free(buf);
	return (NULL);
}
开发者ID:AAZemlyanukhin，项目名称:freebsd，代码行数:71，代码来源:libelf_open.c



注：本文中的LIBELF_SET_ERROR函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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