[PATCH v2 05/12] pmdinfogen: move to drivers subdirectory

[Gaetan Rivet <gaetan.rivet@6wind.com>]

pmdinfogen has a dependency on the PCI bus. The latter must be built
first.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
---
 GNUmakefile                        |   2 +-
 MAINTAINERS                        |   2 +-
 buildtools/Makefile                |  36 ----
 buildtools/pmdinfogen/Makefile     |  47 -----
 buildtools/pmdinfogen/pmdinfogen.c | 422 -------------------------------------
 buildtools/pmdinfogen/pmdinfogen.h | 125 -----------
 drivers/Makefile                   |   4 +-
 drivers/pmdinfogen/Makefile        |  47 +++++
 drivers/pmdinfogen/pmdinfogen.c    | 422 +++++++++++++++++++++++++++++++++++++
 drivers/pmdinfogen/pmdinfogen.h    | 125 +++++++++++
 10 files changed, 599 insertions(+), 633 deletions(-)
 delete mode 100644 buildtools/Makefile
 delete mode 100644 buildtools/pmdinfogen/Makefile
 delete mode 100644 buildtools/pmdinfogen/pmdinfogen.c
 delete mode 100644 buildtools/pmdinfogen/pmdinfogen.h
 create mode 100644 drivers/pmdinfogen/Makefile
 create mode 100644 drivers/pmdinfogen/pmdinfogen.c
 create mode 100644 drivers/pmdinfogen/pmdinfogen.h

diff --git a/GNUmakefile b/GNUmakefile
index 45b7fbb..c292646 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -40,7 +40,7 @@ export RTE_SDK
 # directory list
 #
 
-ROOTDIRS-y := buildtools lib drivers app
+ROOTDIRS-y := lib drivers app
 ROOTDIRS-  := test
 
 include $(RTE_SDK)/mk/rte.sdkroot.mk
diff --git a/MAINTAINERS b/MAINTAINERS
index f6095ef..c8c57cb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -72,7 +72,7 @@ F: doc/guides/rel_notes/deprecation.rst
 F: devtools/validate-abi.sh
 
 Driver information
-F: buildtools/pmdinfogen/
+F: drivers/pmdinfogen/
 F: usertools/dpdk-pmdinfo.py
 F: doc/guides/tools/pmdinfo.rst
 
diff --git a/buildtools/Makefile b/buildtools/Makefile
deleted file mode 100644
index 35a42ff..0000000
--- a/buildtools/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-#   BSD LICENSE
-#
-#   Copyright(c) 2016 Neil Horman. All rights reserved.
-#   All rights reserved.
-#
-#   Redistribution and use in source and binary forms, with or without
-#   modification, are permitted provided that the following conditions
-#   are met:
-#
-#     * Redistributions of source code must retain the above copyright
-#       notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above copyright
-#       notice, this list of conditions and the following disclaimer in
-#       the documentation and/or other materials provided with the
-#       distribution.
-#     * Neither the name of Intel Corporation nor the names of its
-#       contributors may be used to endorse or promote products derived
-#       from this software without specific prior written permission.
-#
-#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-DIRS-y += pmdinfogen
-
-include $(RTE_SDK)/mk/rte.subdir.mk
diff --git a/buildtools/pmdinfogen/Makefile b/buildtools/pmdinfogen/Makefile
deleted file mode 100644
index bf07b6f..0000000
--- a/buildtools/pmdinfogen/Makefile
+++ /dev/null
@@ -1,47 +0,0 @@
-#   BSD LICENSE
-#
-#   Copyright(c) 2016 Neil Horman. All rights reserved.
-#   All rights reserved.
-#
-#   Redistribution and use in source and binary forms, with or without
-#   modification, are permitted provided that the following conditions
-#   are met:
-#
-#     * Redistributions of source code must retain the above copyright
-#       notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above copyright
-#       notice, this list of conditions and the following disclaimer in
-#       the documentation and/or other materials provided with the
-#       distribution.
-#     * Neither the name of Intel Corporation nor the names of its
-#       contributors may be used to endorse or promote products derived
-#       from this software without specific prior written permission.
-#
-#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-include $(RTE_SDK)/mk/rte.vars.mk
-
-#
-# library name
-#
-HOSTAPP = dpdk-pmdinfogen
-
-#
-# all sources are stored in SRCS-y
-#
-SRCS-y += pmdinfogen.c
-
-HOST_CFLAGS += $(WERROR_FLAGS) -g
-HOST_CFLAGS += -I$(RTE_OUTPUT)/include
-
-include $(RTE_SDK)/mk/rte.hostapp.mk
diff --git a/buildtools/pmdinfogen/pmdinfogen.c b/buildtools/pmdinfogen/pmdinfogen.c
deleted file mode 100644
index ba1a12e..0000000
--- a/buildtools/pmdinfogen/pmdinfogen.c
+++ /dev/null
@@ -1,422 +0,0 @@
-/* Postprocess pmd object files to export hw support
- *
- * Copyright 2016 Neil Horman <nhorman@tuxdriver.com>
- * Based in part on modpost.c from the linux kernel
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License V2, incorporated herein by reference.
- *
- */
-
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-#include <limits.h>
-#include <stdbool.h>
-#include <errno.h>
-#include <libgen.h>
-
-#include <rte_common.h>
-#include "pmdinfogen.h"
-
-#ifdef RTE_ARCH_64
-#define ADDR_SIZE 64
-#else
-#define ADDR_SIZE 32
-#endif
-
-
-static const char *sym_name(struct elf_info *elf, Elf_Sym *sym)
-{
-	if (sym)
-		return elf->strtab + sym->st_name;
-	else
-		return "(unknown)";
-}
-
-static void *grab_file(const char *filename, unsigned long *size)
-{
-	struct stat st;
-	void *map = MAP_FAILED;
-	int fd;
-
-	fd = open(filename, O_RDONLY);
-	if (fd < 0)
-		return NULL;
-	if (fstat(fd, &st))
-		goto failed;
-
-	*size = st.st_size;
-	map = mmap(NULL, *size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
-
-failed:
-	close(fd);
-	if (map == MAP_FAILED)
-		return NULL;
-	return map;
-}
-
-/**
-  * Return a copy of the next line in a mmap'ed file.
-  * spaces in the beginning of the line is trimmed away.
-  * Return a pointer to a static buffer.
-  **/
-static void release_file(void *file, unsigned long size)
-{
-	munmap(file, size);
-}
-
-
-static void *get_sym_value(struct elf_info *info, const Elf_Sym *sym)
-{
-	return RTE_PTR_ADD(info->hdr,
-		info->sechdrs[sym->st_shndx].sh_offset + sym->st_value);
-}
-
-static Elf_Sym *find_sym_in_symtab(struct elf_info *info,
-				   const char *name, Elf_Sym *last)
-{
-	Elf_Sym *idx;
-	if (last)
-		idx = last+1;
-	else
-		idx = info->symtab_start;
-
-	for (; idx < info->symtab_stop; idx++) {
-		const char *n = sym_name(info, idx);
-		if (!strncmp(n, name, strlen(name)))
-			return idx;
-	}
-	return NULL;
-}
-
-static int parse_elf(struct elf_info *info, const char *filename)
-{
-	unsigned int i;
-	Elf_Ehdr *hdr;
-	Elf_Shdr *sechdrs;
-	Elf_Sym  *sym;
-	int endian;
-	unsigned int symtab_idx = ~0U, symtab_shndx_idx = ~0U;
-
-	hdr = grab_file(filename, &info->size);
-	if (!hdr) {
-		perror(filename);
-		exit(1);
-	}
-	info->hdr = hdr;
-	if (info->size < sizeof(*hdr)) {
-		/* file too small, assume this is an empty .o file */
-		return 0;
-	}
-	/* Is this a valid ELF file? */
-	if ((hdr->e_ident[EI_MAG0] != ELFMAG0) ||
-	    (hdr->e_ident[EI_MAG1] != ELFMAG1) ||
-	    (hdr->e_ident[EI_MAG2] != ELFMAG2) ||
-	    (hdr->e_ident[EI_MAG3] != ELFMAG3)) {
-		/* Not an ELF file - silently ignore it */
-		return 0;
-	}
-
-	if (!hdr->e_ident[EI_DATA]) {
-		/* Unknown endian */
-		return 0;
-	}
-
-	endian = hdr->e_ident[EI_DATA];
-
-	/* Fix endianness in ELF header */
-	hdr->e_type      = TO_NATIVE(endian, 16, hdr->e_type);
-	hdr->e_machine   = TO_NATIVE(endian, 16, hdr->e_machine);
-	hdr->e_version   = TO_NATIVE(endian, 32, hdr->e_version);
-	hdr->e_entry     = TO_NATIVE(endian, ADDR_SIZE, hdr->e_entry);
-	hdr->e_phoff     = TO_NATIVE(endian, ADDR_SIZE, hdr->e_phoff);
-	hdr->e_shoff     = TO_NATIVE(endian, ADDR_SIZE, hdr->e_shoff);
-	hdr->e_flags     = TO_NATIVE(endian, 32, hdr->e_flags);
-	hdr->e_ehsize    = TO_NATIVE(endian, 16, hdr->e_ehsize);
-	hdr->e_phentsize = TO_NATIVE(endian, 16, hdr->e_phentsize);
-	hdr->e_phnum     = TO_NATIVE(endian, 16, hdr->e_phnum);
-	hdr->e_shentsize = TO_NATIVE(endian, 16, hdr->e_shentsize);
-	hdr->e_shnum     = TO_NATIVE(endian, 16, hdr->e_shnum);
-	hdr->e_shstrndx  = TO_NATIVE(endian, 16, hdr->e_shstrndx);
-
-	sechdrs = RTE_PTR_ADD(hdr, hdr->e_shoff);
-	info->sechdrs = sechdrs;
-
-	/* Check if file offset is correct */
-	if (hdr->e_shoff > info->size) {
-		fprintf(stderr, "section header offset=%lu in file '%s' "
-		      "is bigger than filesize=%lu\n",
-		      (unsigned long)hdr->e_shoff,
-		      filename, info->size);
-		return 0;
-	}
-
-	if (hdr->e_shnum == SHN_UNDEF) {
-		/*
-		 * There are more than 64k sections,
-		 * read count from .sh_size.
-		 */
-		info->num_sections = TO_NATIVE(endian, 32, sechdrs[0].sh_size);
-	} else {
-		info->num_sections = hdr->e_shnum;
-	}
-	if (hdr->e_shstrndx == SHN_XINDEX)
-		info->secindex_strings =
-			TO_NATIVE(endian, 32, sechdrs[0].sh_link);
-	else
-		info->secindex_strings = hdr->e_shstrndx;
-
-	/* Fix endianness in section headers */
-	for (i = 0; i < info->num_sections; i++) {
-		sechdrs[i].sh_name      =
-			TO_NATIVE(endian, 32, sechdrs[i].sh_name);
-		sechdrs[i].sh_type      =
-			TO_NATIVE(endian, 32, sechdrs[i].sh_type);
-		sechdrs[i].sh_flags     =
-			TO_NATIVE(endian, 32, sechdrs[i].sh_flags);
-		sechdrs[i].sh_addr      =
-			TO_NATIVE(endian, ADDR_SIZE, sechdrs[i].sh_addr);
-		sechdrs[i].sh_offset    =
-			TO_NATIVE(endian, ADDR_SIZE, sechdrs[i].sh_offset);
-		sechdrs[i].sh_size      =
-			TO_NATIVE(endian, 32, sechdrs[i].sh_size);
-		sechdrs[i].sh_link      =
-			TO_NATIVE(endian, 32, sechdrs[i].sh_link);
-		sechdrs[i].sh_info      =
-			TO_NATIVE(endian, 32, sechdrs[i].sh_info);
-		sechdrs[i].sh_addralign =
-			TO_NATIVE(endian, ADDR_SIZE, sechdrs[i].sh_addralign);
-		sechdrs[i].sh_entsize   =
-			TO_NATIVE(endian, ADDR_SIZE, sechdrs[i].sh_entsize);
-	}
-	/* Find symbol table. */
-	for (i = 1; i < info->num_sections; i++) {
-		int nobits = sechdrs[i].sh_type == SHT_NOBITS;
-
-		if (!nobits && sechdrs[i].sh_offset > info->size) {
-			fprintf(stderr, "%s is truncated. "
-			      "sechdrs[i].sh_offset=%lu > sizeof(*hrd)=%zu\n",
-			      filename, (unsigned long)sechdrs[i].sh_offset,
-			      sizeof(*hdr));
-			return 0;
-		}
-
-		if (sechdrs[i].sh_type == SHT_SYMTAB) {
-			unsigned int sh_link_idx;
-			symtab_idx = i;
-			info->symtab_start = RTE_PTR_ADD(hdr,
-				sechdrs[i].sh_offset);
-			info->symtab_stop  = RTE_PTR_ADD(hdr,
-				sechdrs[i].sh_offset + sechdrs[i].sh_size);
-			sh_link_idx = sechdrs[i].sh_link;
-			info->strtab       = RTE_PTR_ADD(hdr,
-				sechdrs[sh_link_idx].sh_offset);
-		}
-
-		/* 32bit section no. table? ("more than 64k sections") */
-		if (sechdrs[i].sh_type == SHT_SYMTAB_SHNDX) {
-			symtab_shndx_idx = i;
-			info->symtab_shndx_start = RTE_PTR_ADD(hdr,
-				sechdrs[i].sh_offset);
-			info->symtab_shndx_stop  = RTE_PTR_ADD(hdr,
-				sechdrs[i].sh_offset + sechdrs[i].sh_size);
-		}
-	}
-	if (!info->symtab_start)
-		fprintf(stderr, "%s has no symtab?\n", filename);
-	else {
-		/* Fix endianness in symbols */
-		for (sym = info->symtab_start; sym < info->symtab_stop; sym++) {
-			sym->st_shndx = TO_NATIVE(endian, 16, sym->st_shndx);
-			sym->st_name  = TO_NATIVE(endian, 32, sym->st_name);
-			sym->st_value = TO_NATIVE(endian, ADDR_SIZE, sym->st_value);
-			sym->st_size  = TO_NATIVE(endian, ADDR_SIZE, sym->st_size);
-		}
-	}
-
-	if (symtab_shndx_idx != ~0U) {
-		Elf32_Word *p;
-		if (symtab_idx != sechdrs[symtab_shndx_idx].sh_link)
-			fprintf(stderr,
-			      "%s: SYMTAB_SHNDX has bad sh_link: %u!=%u\n",
-			      filename, sechdrs[symtab_shndx_idx].sh_link,
-			      symtab_idx);
-		/* Fix endianness */
-		for (p = info->symtab_shndx_start; p < info->symtab_shndx_stop;
-		     p++)
-			*p = TO_NATIVE(endian, 32, *p);
-	}
-
-	return 1;
-}
-
-static void parse_elf_finish(struct elf_info *info)
-{
-	struct pmd_driver *tmp, *idx = info->drivers;
-	release_file(info->hdr, info->size);
-	while (idx) {
-		tmp = idx->next;
-		free(idx);
-		idx = tmp;
-	}
-}
-
-struct opt_tag {
-	const char *suffix;
-	const char *json_id;
-};
-
-static const struct opt_tag opt_tags[] = {
-	{"_param_string_export", "params"},
-	{"_kmod_dep_export", "kmod"},
-};
-
-static int complete_pmd_entry(struct elf_info *info, struct pmd_driver *drv)
-{
-	const char *tname;
-	int i;
-	char tmpsymname[128];
-	Elf_Sym *tmpsym;
-
-	drv->name = get_sym_value(info, drv->name_sym);
-
-	for (i = 0; i < PMD_OPT_MAX; i++) {
-		memset(tmpsymname, 0, 128);
-		sprintf(tmpsymname, "__%s%s", drv->name, opt_tags[i].suffix);
-		tmpsym = find_sym_in_symtab(info, tmpsymname, NULL);
-		if (!tmpsym)
-			continue;
-		drv->opt_vals[i] = get_sym_value(info, tmpsym);
-	}
-
-	memset(tmpsymname, 0, 128);
-	sprintf(tmpsymname, "__%s_pci_tbl_export", drv->name);
-
-	tmpsym = find_sym_in_symtab(info, tmpsymname, NULL);
-
-
-	/*
-	 * If this returns NULL, then this is a PMD_VDEV, because
-	 * it has no pci table reference
-	 */
-	if (!tmpsym) {
-		drv->pci_tbl = NULL;
-		return 0;
-	}
-
-	tname = get_sym_value(info, tmpsym);
-	tmpsym = find_sym_in_symtab(info, tname, NULL);
-	if (!tmpsym)
-		return -ENOENT;
-
-	drv->pci_tbl = (struct rte_pci_id *)get_sym_value(info, tmpsym);
-	if (!drv->pci_tbl)
-		return -ENOENT;
-
-	return 0;
-}
-
-static int locate_pmd_entries(struct elf_info *info)
-{
-	Elf_Sym *last = NULL;
-	struct pmd_driver *new;
-
-	info->drivers = NULL;
-
-	do {
-		new = calloc(sizeof(struct pmd_driver), 1);
-		new->name_sym = find_sym_in_symtab(info, "this_pmd_name", last);
-		last = new->name_sym;
-		if (!new->name_sym)
-			free(new);
-		else {
-			if (complete_pmd_entry(info, new)) {
-				fprintf(stderr,
-					"Failed to complete pmd entry\n");
-				free(new);
-			} else {
-				new->next = info->drivers;
-				info->drivers = new;
-			}
-		}
-	} while (last);
-
-	return 0;
-}
-
-static void output_pmd_info_string(struct elf_info *info, char *outfile)
-{
-	FILE *ofd;
-	struct pmd_driver *drv;
-	struct rte_pci_id *pci_ids;
-	int idx = 0;
-
-	ofd = fopen(outfile, "w+");
-	if (!ofd) {
-		fprintf(stderr, "Unable to open output file\n");
-		return;
-	}
-
-	drv = info->drivers;
-
-	while (drv) {
-		fprintf(ofd, "const char %s_pmd_info[] __attribute__((used)) = "
-			"\"PMD_INFO_STRING= {",
-			drv->name);
-		fprintf(ofd, "\\\"name\\\" : \\\"%s\\\", ", drv->name);
-
-		for (idx = 0; idx < PMD_OPT_MAX; idx++) {
-			if (drv->opt_vals[idx])
-				fprintf(ofd, "\\\"%s\\\" : \\\"%s\\\", ",
-					opt_tags[idx].json_id,
-					drv->opt_vals[idx]);
-		}
-
-		pci_ids = drv->pci_tbl;
-		fprintf(ofd, "\\\"pci_ids\\\" : [");
-
-		while (pci_ids && pci_ids->device_id) {
-			fprintf(ofd, "[%d, %d, %d, %d]",
-				pci_ids->vendor_id, pci_ids->device_id,
-				pci_ids->subsystem_vendor_id,
-				pci_ids->subsystem_device_id);
-			pci_ids++;
-			if (pci_ids->device_id)
-				fprintf(ofd, ",");
-			else
-				fprintf(ofd, " ");
-		}
-		fprintf(ofd, "]}\";\n");
-		drv = drv->next;
-	}
-
-	fclose(ofd);
-}
-
-int main(int argc, char **argv)
-{
-	struct elf_info info;
-	int rc = 1;
-
-	if (argc < 3) {
-		fprintf(stderr,
-			"usage: %s <object file> <c output file>\n",
-			basename(argv[0]));
-		exit(127);
-	}
-	parse_elf(&info, argv[1]);
-
-	locate_pmd_entries(&info);
-
-	if (info.drivers) {
-		output_pmd_info_string(&info, argv[2]);
-		rc = 0;
-	} else {
-		fprintf(stderr, "No drivers registered\n");
-	}
-
-	parse_elf_finish(&info);
-	exit(rc);
-}
diff --git a/buildtools/pmdinfogen/pmdinfogen.h b/buildtools/pmdinfogen/pmdinfogen.h
deleted file mode 100644
index 27bab30..0000000
--- a/buildtools/pmdinfogen/pmdinfogen.h
+++ /dev/null
@@ -1,125 +0,0 @@
-
-/* Postprocess pmd object files to export hw support
- *
- * Copyright 2016 Neil Horman <nhorman@tuxdriver.com>
- * Based in part on modpost.c from the linux kernel
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License V2, incorporated herein by reference.
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-#ifdef __linux__
-#include <endian.h>
-#else
-#include <sys/endian.h>
-#endif
-#include <fcntl.h>
-#include <unistd.h>
-#include <elf.h>
-#include <rte_config.h>
-#include <rte_pci.h>
-
-/* On BSD-alike OSes elf.h defines these according to host's word size */
-#undef ELF_ST_BIND
-#undef ELF_ST_TYPE
-#undef ELF_R_SYM
-#undef ELF_R_TYPE
-
-/*
- * Define ELF64_* to ELF_*, the latter being defined in both 32 and 64 bit
- * flavors in elf.h.  This makes our code a bit more generic between arches
- * and allows us to support 32 bit code in the future should we ever want to
- */
-#ifdef RTE_ARCH_64
-#define Elf_Ehdr    Elf64_Ehdr
-#define Elf_Shdr    Elf64_Shdr
-#define Elf_Sym     Elf64_Sym
-#define Elf_Addr    Elf64_Addr
-#define Elf_Sword   Elf64_Sxword
-#define Elf_Section Elf64_Half
-#define ELF_ST_BIND ELF64_ST_BIND
-#define ELF_ST_TYPE ELF64_ST_TYPE
-
-#define Elf_Rel     Elf64_Rel
-#define Elf_Rela    Elf64_Rela
-#define ELF_R_SYM   ELF64_R_SYM
-#define ELF_R_TYPE  ELF64_R_TYPE
-#else
-#define Elf_Ehdr    Elf32_Ehdr
-#define Elf_Shdr    Elf32_Shdr
-#define Elf_Sym     Elf32_Sym
-#define Elf_Addr    Elf32_Addr
-#define Elf_Sword   Elf32_Sxword
-#define Elf_Section Elf32_Half
-#define ELF_ST_BIND ELF32_ST_BIND
-#define ELF_ST_TYPE ELF32_ST_TYPE
-
-#define Elf_Rel     Elf32_Rel
-#define Elf_Rela    Elf32_Rela
-#define ELF_R_SYM   ELF32_R_SYM
-#define ELF_R_TYPE  ELF32_R_TYPE
-#endif
-
-
-/*
- * Note, it seems odd that we have both a CONVERT_NATIVE and a TO_NATIVE macro
- * below.  We do this because the values passed to TO_NATIVE may themselves be
- * macros and need both macros here to get expanded.  Specifically its the width
- * variable we are concerned with, because it needs to get expanded prior to
- * string concatenation
- */
-#define CONVERT_NATIVE(fend, width, x) ({ \
-typeof(x) ___x; \
-if ((fend) == ELFDATA2LSB) \
-	___x = le##width##toh(x); \
-else \
-	___x = be##width##toh(x); \
-	___x; \
-})
-
-#define TO_NATIVE(fend, width, x) CONVERT_NATIVE(fend, width, x)
-
-enum opt_params {
-	PMD_PARAM_STRING = 0,
-	PMD_KMOD_DEP,
-	PMD_OPT_MAX
-};
-
-struct pmd_driver {
-	Elf_Sym *name_sym;
-	const char *name;
-	struct rte_pci_id *pci_tbl;
-	struct pmd_driver *next;
-
-	const char *opt_vals[PMD_OPT_MAX];
-};
-
-struct elf_info {
-	unsigned long size;
-	Elf_Ehdr     *hdr;
-	Elf_Shdr     *sechdrs;
-	Elf_Sym      *symtab_start;
-	Elf_Sym      *symtab_stop;
-	char         *strtab;
-
-	/* support for 32bit section numbers */
-
-	unsigned int num_sections; /* max_secindex + 1 */
-	unsigned int secindex_strings;
-	/* if Nth symbol table entry has .st_shndx = SHN_XINDEX,
-	 * take shndx from symtab_shndx_start[N] instead
-	 */
-	Elf32_Word   *symtab_shndx_start;
-	Elf32_Word   *symtab_shndx_stop;
-
-	struct pmd_driver *drivers;
-};
-
diff --git a/drivers/Makefile b/drivers/Makefile
index a04a01f..f3f9417 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -32,10 +32,12 @@
 include $(RTE_SDK)/mk/rte.vars.mk
 
 DIRS-y += bus
+DIRS-y += pmdinfogen
+DEPDIRS-pmdinfogen := bus
 DIRS-y += mempool
 DEPDIRS-mempool := bus
 DIRS-y += net
-DEPDIRS-net := bus mempool
+DEPDIRS-net := bus pmdinfogen mempool
 DIRS-$(CONFIG_RTE_LIBRTE_CRYPTODEV) += crypto
 DEPDIRS-crypto := mempool
 DIRS-$(CONFIG_RTE_LIBRTE_EVENTDEV) += event
diff --git a/drivers/pmdinfogen/Makefile b/drivers/pmdinfogen/Makefile
new file mode 100644
index 0000000..bf07b6f
--- /dev/null
+++ b/drivers/pmdinfogen/Makefile
@@ -0,0 +1,47 @@
+#   BSD LICENSE
+#
+#   Copyright(c) 2016 Neil Horman. All rights reserved.
+#   All rights reserved.
+#
+#   Redistribution and use in source and binary forms, with or without
+#   modification, are permitted provided that the following conditions
+#   are met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in
+#       the documentation and/or other materials provided with the
+#       distribution.
+#     * Neither the name of Intel Corporation nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+HOSTAPP = dpdk-pmdinfogen
+
+#
+# all sources are stored in SRCS-y
+#
+SRCS-y += pmdinfogen.c
+
+HOST_CFLAGS += $(WERROR_FLAGS) -g
+HOST_CFLAGS += -I$(RTE_OUTPUT)/include
+
+include $(RTE_SDK)/mk/rte.hostapp.mk
diff --git a/drivers/pmdinfogen/pmdinfogen.c b/drivers/pmdinfogen/pmdinfogen.c
new file mode 100644
index 0000000..ba1a12e
--- /dev/null
+++ b/drivers/pmdinfogen/pmdinfogen.c
@@ -0,0 +1,422 @@
+/* Postprocess pmd object files to export hw support
+ *
+ * Copyright 2016 Neil Horman <nhorman@tuxdriver.com>
+ * Based in part on modpost.c from the linux kernel
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License V2, incorporated herein by reference.
+ *
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <libgen.h>
+
+#include <rte_common.h>
+#include "pmdinfogen.h"
+
+#ifdef RTE_ARCH_64
+#define ADDR_SIZE 64
+#else
+#define ADDR_SIZE 32
+#endif
+
+
+static const char *sym_name(struct elf_info *elf, Elf_Sym *sym)
+{
+	if (sym)
+		return elf->strtab + sym->st_name;
+	else
+		return "(unknown)";
+}
+
+static void *grab_file(const char *filename, unsigned long *size)
+{
+	struct stat st;
+	void *map = MAP_FAILED;
+	int fd;
+
+	fd = open(filename, O_RDONLY);
+	if (fd < 0)
+		return NULL;
+	if (fstat(fd, &st))
+		goto failed;
+
+	*size = st.st_size;
+	map = mmap(NULL, *size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
+
+failed:
+	close(fd);
+	if (map == MAP_FAILED)
+		return NULL;
+	return map;
+}
+
+/**
+  * Return a copy of the next line in a mmap'ed file.
+  * spaces in the beginning of the line is trimmed away.
+  * Return a pointer to a static buffer.
+  **/
+static void release_file(void *file, unsigned long size)
+{
+	munmap(file, size);
+}
+
+
+static void *get_sym_value(struct elf_info *info, const Elf_Sym *sym)
+{
+	return RTE_PTR_ADD(info->hdr,
+		info->sechdrs[sym->st_shndx].sh_offset + sym->st_value);
+}
+
+static Elf_Sym *find_sym_in_symtab(struct elf_info *info,
+				   const char *name, Elf_Sym *last)
+{
+	Elf_Sym *idx;
+	if (last)
+		idx = last+1;
+	else
+		idx = info->symtab_start;
+
+	for (; idx < info->symtab_stop; idx++) {
+		const char *n = sym_name(info, idx);
+		if (!strncmp(n, name, strlen(name)))
+			return idx;
+	}
+	return NULL;
+}
+
+static int parse_elf(struct elf_info *info, const char *filename)
+{
+	unsigned int i;
+	Elf_Ehdr *hdr;
+	Elf_Shdr *sechdrs;
+	Elf_Sym  *sym;
+	int endian;
+	unsigned int symtab_idx = ~0U, symtab_shndx_idx = ~0U;
+
+	hdr = grab_file(filename, &info->size);
+	if (!hdr) {
+		perror(filename);
+		exit(1);
+	}
+	info->hdr = hdr;
+	if (info->size < sizeof(*hdr)) {
+		/* file too small, assume this is an empty .o file */
+		return 0;
+	}
+	/* Is this a valid ELF file? */
+	if ((hdr->e_ident[EI_MAG0] != ELFMAG0) ||
+	    (hdr->e_ident[EI_MAG1] != ELFMAG1) ||
+	    (hdr->e_ident[EI_MAG2] != ELFMAG2) ||
+	    (hdr->e_ident[EI_MAG3] != ELFMAG3)) {
+		/* Not an ELF file - silently ignore it */
+		return 0;
+	}
+
+	if (!hdr->e_ident[EI_DATA]) {
+		/* Unknown endian */
+		return 0;
+	}
+
+	endian = hdr->e_ident[EI_DATA];
+
+	/* Fix endianness in ELF header */
+	hdr->e_type      = TO_NATIVE(endian, 16, hdr->e_type);
+	hdr->e_machine   = TO_NATIVE(endian, 16, hdr->e_machine);
+	hdr->e_version   = TO_NATIVE(endian, 32, hdr->e_version);
+	hdr->e_entry     = TO_NATIVE(endian, ADDR_SIZE, hdr->e_entry);
+	hdr->e_phoff     = TO_NATIVE(endian, ADDR_SIZE, hdr->e_phoff);
+	hdr->e_shoff     = TO_NATIVE(endian, ADDR_SIZE, hdr->e_shoff);
+	hdr->e_flags     = TO_NATIVE(endian, 32, hdr->e_flags);
+	hdr->e_ehsize    = TO_NATIVE(endian, 16, hdr->e_ehsize);
+	hdr->e_phentsize = TO_NATIVE(endian, 16, hdr->e_phentsize);
+	hdr->e_phnum     = TO_NATIVE(endian, 16, hdr->e_phnum);
+	hdr->e_shentsize = TO_NATIVE(endian, 16, hdr->e_shentsize);
+	hdr->e_shnum     = TO_NATIVE(endian, 16, hdr->e_shnum);
+	hdr->e_shstrndx  = TO_NATIVE(endian, 16, hdr->e_shstrndx);
+
+	sechdrs = RTE_PTR_ADD(hdr, hdr->e_shoff);
+	info->sechdrs = sechdrs;
+
+	/* Check if file offset is correct */
+	if (hdr->e_shoff > info->size) {
+		fprintf(stderr, "section header offset=%lu in file '%s' "
+		      "is bigger than filesize=%lu\n",
+		      (unsigned long)hdr->e_shoff,
+		      filename, info->size);
+		return 0;
+	}
+
+	if (hdr->e_shnum == SHN_UNDEF) {
+		/*
+		 * There are more than 64k sections,
+		 * read count from .sh_size.
+		 */
+		info->num_sections = TO_NATIVE(endian, 32, sechdrs[0].sh_size);
+	} else {
+		info->num_sections = hdr->e_shnum;
+	}
+	if (hdr->e_shstrndx == SHN_XINDEX)
+		info->secindex_strings =
+			TO_NATIVE(endian, 32, sechdrs[0].sh_link);
+	else
+		info->secindex_strings = hdr->e_shstrndx;
+
+	/* Fix endianness in section headers */
+	for (i = 0; i < info->num_sections; i++) {
+		sechdrs[i].sh_name      =
+			TO_NATIVE(endian, 32, sechdrs[i].sh_name);
+		sechdrs[i].sh_type      =
+			TO_NATIVE(endian, 32, sechdrs[i].sh_type);
+		sechdrs[i].sh_flags     =
+			TO_NATIVE(endian, 32, sechdrs[i].sh_flags);
+		sechdrs[i].sh_addr      =
+			TO_NATIVE(endian, ADDR_SIZE, sechdrs[i].sh_addr);
+		sechdrs[i].sh_offset    =
+			TO_NATIVE(endian, ADDR_SIZE, sechdrs[i].sh_offset);
+		sechdrs[i].sh_size      =
+			TO_NATIVE(endian, 32, sechdrs[i].sh_size);
+		sechdrs[i].sh_link      =
+			TO_NATIVE(endian, 32, sechdrs[i].sh_link);
+		sechdrs[i].sh_info      =
+			TO_NATIVE(endian, 32, sechdrs[i].sh_info);
+		sechdrs[i].sh_addralign =
+			TO_NATIVE(endian, ADDR_SIZE, sechdrs[i].sh_addralign);
+		sechdrs[i].sh_entsize   =
+			TO_NATIVE(endian, ADDR_SIZE, sechdrs[i].sh_entsize);
+	}
+	/* Find symbol table. */
+	for (i = 1; i < info->num_sections; i++) {
+		int nobits = sechdrs[i].sh_type == SHT_NOBITS;
+
+		if (!nobits && sechdrs[i].sh_offset > info->size) {
+			fprintf(stderr, "%s is truncated. "
+			      "sechdrs[i].sh_offset=%lu > sizeof(*hrd)=%zu\n",
+			      filename, (unsigned long)sechdrs[i].sh_offset,
+			      sizeof(*hdr));
+			return 0;
+		}
+
+		if (sechdrs[i].sh_type == SHT_SYMTAB) {
+			unsigned int sh_link_idx;
+			symtab_idx = i;
+			info->symtab_start = RTE_PTR_ADD(hdr,
+				sechdrs[i].sh_offset);
+			info->symtab_stop  = RTE_PTR_ADD(hdr,
+				sechdrs[i].sh_offset + sechdrs[i].sh_size);
+			sh_link_idx = sechdrs[i].sh_link;
+			info->strtab       = RTE_PTR_ADD(hdr,
+				sechdrs[sh_link_idx].sh_offset);
+		}
+
+		/* 32bit section no. table? ("more than 64k sections") */
+		if (sechdrs[i].sh_type == SHT_SYMTAB_SHNDX) {
+			symtab_shndx_idx = i;
+			info->symtab_shndx_start = RTE_PTR_ADD(hdr,
+				sechdrs[i].sh_offset);
+			info->symtab_shndx_stop  = RTE_PTR_ADD(hdr,
+				sechdrs[i].sh_offset + sechdrs[i].sh_size);
+		}
+	}
+	if (!info->symtab_start)
+		fprintf(stderr, "%s has no symtab?\n", filename);
+	else {
+		/* Fix endianness in symbols */
+		for (sym = info->symtab_start; sym < info->symtab_stop; sym++) {
+			sym->st_shndx = TO_NATIVE(endian, 16, sym->st_shndx);
+			sym->st_name  = TO_NATIVE(endian, 32, sym->st_name);
+			sym->st_value = TO_NATIVE(endian, ADDR_SIZE, sym->st_value);
+			sym->st_size  = TO_NATIVE(endian, ADDR_SIZE, sym->st_size);
+		}
+	}
+
+	if (symtab_shndx_idx != ~0U) {
+		Elf32_Word *p;
+		if (symtab_idx != sechdrs[symtab_shndx_idx].sh_link)
+			fprintf(stderr,
+			      "%s: SYMTAB_SHNDX has bad sh_link: %u!=%u\n",
+			      filename, sechdrs[symtab_shndx_idx].sh_link,
+			      symtab_idx);
+		/* Fix endianness */
+		for (p = info->symtab_shndx_start; p < info->symtab_shndx_stop;
+		     p++)
+			*p = TO_NATIVE(endian, 32, *p);
+	}
+
+	return 1;
+}
+
+static void parse_elf_finish(struct elf_info *info)
+{
+	struct pmd_driver *tmp, *idx = info->drivers;
+	release_file(info->hdr, info->size);
+	while (idx) {
+		tmp = idx->next;
+		free(idx);
+		idx = tmp;
+	}
+}
+
+struct opt_tag {
+	const char *suffix;
+	const char *json_id;
+};
+
+static const struct opt_tag opt_tags[] = {
+	{"_param_string_export", "params"},
+	{"_kmod_dep_export", "kmod"},
+};
+
+static int complete_pmd_entry(struct elf_info *info, struct pmd_driver *drv)
+{
+	const char *tname;
+	int i;
+	char tmpsymname[128];
+	Elf_Sym *tmpsym;
+
+	drv->name = get_sym_value(info, drv->name_sym);
+
+	for (i = 0; i < PMD_OPT_MAX; i++) {
+		memset(tmpsymname, 0, 128);
+		sprintf(tmpsymname, "__%s%s", drv->name, opt_tags[i].suffix);
+		tmpsym = find_sym_in_symtab(info, tmpsymname, NULL);
+		if (!tmpsym)
+			continue;
+		drv->opt_vals[i] = get_sym_value(info, tmpsym);
+	}
+
+	memset(tmpsymname, 0, 128);
+	sprintf(tmpsymname, "__%s_pci_tbl_export", drv->name);
+
+	tmpsym = find_sym_in_symtab(info, tmpsymname, NULL);
+
+
+	/*
+	 * If this returns NULL, then this is a PMD_VDEV, because
+	 * it has no pci table reference
+	 */
+	if (!tmpsym) {
+		drv->pci_tbl = NULL;
+		return 0;
+	}
+
+	tname = get_sym_value(info, tmpsym);
+	tmpsym = find_sym_in_symtab(info, tname, NULL);
+	if (!tmpsym)
+		return -ENOENT;
+
+	drv->pci_tbl = (struct rte_pci_id *)get_sym_value(info, tmpsym);
+	if (!drv->pci_tbl)
+		return -ENOENT;
+
+	return 0;
+}
+
+static int locate_pmd_entries(struct elf_info *info)
+{
+	Elf_Sym *last = NULL;
+	struct pmd_driver *new;
+
+	info->drivers = NULL;
+
+	do {
+		new = calloc(sizeof(struct pmd_driver), 1);
+		new->name_sym = find_sym_in_symtab(info, "this_pmd_name", last);
+		last = new->name_sym;
+		if (!new->name_sym)
+			free(new);
+		else {
+			if (complete_pmd_entry(info, new)) {
+				fprintf(stderr,
+					"Failed to complete pmd entry\n");
+				free(new);
+			} else {
+				new->next = info->drivers;
+				info->drivers = new;
+			}
+		}
+	} while (last);
+
+	return 0;
+}
+
+static void output_pmd_info_string(struct elf_info *info, char *outfile)
+{
+	FILE *ofd;
+	struct pmd_driver *drv;
+	struct rte_pci_id *pci_ids;
+	int idx = 0;
+
+	ofd = fopen(outfile, "w+");
+	if (!ofd) {
+		fprintf(stderr, "Unable to open output file\n");
+		return;
+	}
+
+	drv = info->drivers;
+
+	while (drv) {
+		fprintf(ofd, "const char %s_pmd_info[] __attribute__((used)) = "
+			"\"PMD_INFO_STRING= {",
+			drv->name);
+		fprintf(ofd, "\\\"name\\\" : \\\"%s\\\", ", drv->name);
+
+		for (idx = 0; idx < PMD_OPT_MAX; idx++) {
+			if (drv->opt_vals[idx])
+				fprintf(ofd, "\\\"%s\\\" : \\\"%s\\\", ",
+					opt_tags[idx].json_id,
+					drv->opt_vals[idx]);
+		}
+
+		pci_ids = drv->pci_tbl;
+		fprintf(ofd, "\\\"pci_ids\\\" : [");
+
+		while (pci_ids && pci_ids->device_id) {
+			fprintf(ofd, "[%d, %d, %d, %d]",
+				pci_ids->vendor_id, pci_ids->device_id,
+				pci_ids->subsystem_vendor_id,
+				pci_ids->subsystem_device_id);
+			pci_ids++;
+			if (pci_ids->device_id)
+				fprintf(ofd, ",");
+			else
+				fprintf(ofd, " ");
+		}
+		fprintf(ofd, "]}\";\n");
+		drv = drv->next;
+	}
+
+	fclose(ofd);
+}
+
+int main(int argc, char **argv)
+{
+	struct elf_info info;
+	int rc = 1;
+
+	if (argc < 3) {
+		fprintf(stderr,
+			"usage: %s <object file> <c output file>\n",
+			basename(argv[0]));
+		exit(127);
+	}
+	parse_elf(&info, argv[1]);
+
+	locate_pmd_entries(&info);
+
+	if (info.drivers) {
+		output_pmd_info_string(&info, argv[2]);
+		rc = 0;
+	} else {
+		fprintf(stderr, "No drivers registered\n");
+	}
+
+	parse_elf_finish(&info);
+	exit(rc);
+}
diff --git a/drivers/pmdinfogen/pmdinfogen.h b/drivers/pmdinfogen/pmdinfogen.h
new file mode 100644
index 0000000..27bab30
--- /dev/null
+++ b/drivers/pmdinfogen/pmdinfogen.h
@@ -0,0 +1,125 @@
+
+/* Postprocess pmd object files to export hw support
+ *
+ * Copyright 2016 Neil Horman <nhorman@tuxdriver.com>
+ * Based in part on modpost.c from the linux kernel
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License V2, incorporated herein by reference.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#ifdef __linux__
+#include <endian.h>
+#else
+#include <sys/endian.h>
+#endif
+#include <fcntl.h>
+#include <unistd.h>
+#include <elf.h>
+#include <rte_config.h>
+#include <rte_pci.h>
+
+/* On BSD-alike OSes elf.h defines these according to host's word size */
+#undef ELF_ST_BIND
+#undef ELF_ST_TYPE
+#undef ELF_R_SYM
+#undef ELF_R_TYPE
+
+/*
+ * Define ELF64_* to ELF_*, the latter being defined in both 32 and 64 bit
+ * flavors in elf.h.  This makes our code a bit more generic between arches
+ * and allows us to support 32 bit code in the future should we ever want to
+ */
+#ifdef RTE_ARCH_64
+#define Elf_Ehdr    Elf64_Ehdr
+#define Elf_Shdr    Elf64_Shdr
+#define Elf_Sym     Elf64_Sym
+#define Elf_Addr    Elf64_Addr
+#define Elf_Sword   Elf64_Sxword
+#define Elf_Section Elf64_Half
+#define ELF_ST_BIND ELF64_ST_BIND
+#define ELF_ST_TYPE ELF64_ST_TYPE
+
+#define Elf_Rel     Elf64_Rel
+#define Elf_Rela    Elf64_Rela
+#define ELF_R_SYM   ELF64_R_SYM
+#define ELF_R_TYPE  ELF64_R_TYPE
+#else
+#define Elf_Ehdr    Elf32_Ehdr
+#define Elf_Shdr    Elf32_Shdr
+#define Elf_Sym     Elf32_Sym
+#define Elf_Addr    Elf32_Addr
+#define Elf_Sword   Elf32_Sxword
+#define Elf_Section Elf32_Half
+#define ELF_ST_BIND ELF32_ST_BIND
+#define ELF_ST_TYPE ELF32_ST_TYPE
+
+#define Elf_Rel     Elf32_Rel
+#define Elf_Rela    Elf32_Rela
+#define ELF_R_SYM   ELF32_R_SYM
+#define ELF_R_TYPE  ELF32_R_TYPE
+#endif
+
+
+/*
+ * Note, it seems odd that we have both a CONVERT_NATIVE and a TO_NATIVE macro
+ * below.  We do this because the values passed to TO_NATIVE may themselves be
+ * macros and need both macros here to get expanded.  Specifically its the width
+ * variable we are concerned with, because it needs to get expanded prior to
+ * string concatenation
+ */
+#define CONVERT_NATIVE(fend, width, x) ({ \
+typeof(x) ___x; \
+if ((fend) == ELFDATA2LSB) \
+	___x = le##width##toh(x); \
+else \
+	___x = be##width##toh(x); \
+	___x; \
+})
+
+#define TO_NATIVE(fend, width, x) CONVERT_NATIVE(fend, width, x)
+
+enum opt_params {
+	PMD_PARAM_STRING = 0,
+	PMD_KMOD_DEP,
+	PMD_OPT_MAX
+};
+
+struct pmd_driver {
+	Elf_Sym *name_sym;
+	const char *name;
+	struct rte_pci_id *pci_tbl;
+	struct pmd_driver *next;
+
+	const char *opt_vals[PMD_OPT_MAX];
+};
+
+struct elf_info {
+	unsigned long size;
+	Elf_Ehdr     *hdr;
+	Elf_Shdr     *sechdrs;
+	Elf_Sym      *symtab_start;
+	Elf_Sym      *symtab_stop;
+	char         *strtab;
+
+	/* support for 32bit section numbers */
+
+	unsigned int num_sections; /* max_secindex + 1 */
+	unsigned int secindex_strings;
+	/* if Nth symbol table entry has .st_shndx = SHN_XINDEX,
+	 * take shndx from symtab_shndx_start[N] instead
+	 */
+	Elf32_Word   *symtab_shndx_start;
+	Elf32_Word   *symtab_shndx_stop;
+
+	struct pmd_driver *drivers;
+};
+
-- 
2.1.4