pmdinfogen: add buildtools and pmdinfogen utility
authorNeil Horman <nhorman@tuxdriver.com>
Fri, 17 Jun 2016 18:46:20 +0000 (14:46 -0400)
committerThomas Monjalon <thomas.monjalon@6wind.com>
Wed, 6 Jul 2016 20:34:39 +0000 (22:34 +0200)
pmdinfogen is a tool used to parse object files and build json strings for
use in later determining hardware support in a dso or application binary.
pmdinfo looks for the non-exported symbol names this_pmd_name<n> and
this_pmd_tbl<n> (where n is a integer counter).  It records the name of
each of these tuples, using the later to find the symbolic name of the
pci_table for physical devices that the object supports.  With this
information, it outputs a C file with a single line of the form:

static char *<pmd_name>_driver_info[] __attribute__((used)) = " \
PMD_DRIVER_INFO=<json string>";

Where <pmd_name> is the arbitrary name of the pmd, and <json_string> is the
json encoded string that hold relevant pmd information, including the pmd
name, type and optional array of pci device/vendor ids that the driver
supports.

This c file is suitable for compiling to object code, then relocatably
linking into the parent file from which the C was generated.  This creates
an entry in the string table of the object that can inform a later tool
about hardware support.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Panu Matilainen <pmatilai@redhat.com>
Acked-by: Remy Horton <remy.horton@intel.com>
GNUmakefile
buildtools/Makefile [new file with mode: 0644]
buildtools/pmdinfogen/Makefile [new file with mode: 0644]
buildtools/pmdinfogen/pmdinfogen.c [new file with mode: 0644]
buildtools/pmdinfogen/pmdinfogen.h [new file with mode: 0644]
mk/rte.hostapp.mk
mk/rte.sdkbuild.mk
mk/rte.sdkinstall.mk

index b59e4b6..00fe0db 100644 (file)
@@ -40,6 +40,6 @@ export RTE_SDK
 # directory list
 #
 
-ROOTDIRS-y := lib drivers app
+ROOTDIRS-y := buildtools lib drivers app
 
 include $(RTE_SDK)/mk/rte.sdkroot.mk
diff --git a/buildtools/Makefile b/buildtools/Makefile
new file mode 100644 (file)
index 0000000..35a42ff
--- /dev/null
@@ -0,0 +1,36 @@
+#   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
new file mode 100644 (file)
index 0000000..125901b
--- /dev/null
@@ -0,0 +1,49 @@
+#   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 $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+HOSTAPP = pmdinfogen
+
+#
+# all sources are stored in SRCS-y
+#
+SRCS-y += pmdinfogen.c
+
+HOST_EXTRA_CFLAGS += -g -I${RTE_OUTPUT}/include
+
+DEPDIRS-y += lib/librte_eal
+
+include $(RTE_SDK)/mk/rte.hostapp.mk
+
diff --git a/buildtools/pmdinfogen/pmdinfogen.c b/buildtools/pmdinfogen/pmdinfogen.c
new file mode 100644 (file)
index 0000000..0947dc6
--- /dev/null
@@ -0,0 +1,439 @@
+/* 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 "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)";
+}
+
+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.
+  **/
+void release_file(void *file, unsigned long size)
+{
+       munmap(file, size);
+}
+
+
+static void *get_sym_value(struct elf_info *info, const Elf_Sym *sym)
+{
+       void *ptr = (void *)info->hdr + info->sechdrs[sym->st_shndx].sh_offset;
+
+       return (void *)(ptr + 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;
+       const char *secstrings;
+       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 = (void *)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. */
+       secstrings = (void *)hdr + sechdrs[info->secindex_strings].sh_offset;
+       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 = (void *)hdr +
+                           sechdrs[i].sh_offset;
+                       info->symtab_stop  = (void *)hdr +
+                           sechdrs[i].sh_offset + sechdrs[i].sh_size;
+                       sh_link_idx = sechdrs[i].sh_link;
+                       info->strtab       = (void *)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 = (void *)hdr +
+                           sechdrs[i].sh_offset;
+                       info->symtab_shndx_stop  = (void *)hdr +
+                           sechdrs[i].sh_offset + sechdrs[i].sh_size;
+               }
+       }
+       if (!info->symtab_start)
+               fprintf(stderr, "%s has no symtab?\n", filename);
+
+       /* 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;
+       }
+}
+
+static const char *sec_name(struct elf_info *elf, int secindex)
+{
+       Elf_Shdr *sechdrs = elf->sechdrs;
+       return (void *)elf->hdr +
+               elf->sechdrs[elf->secindex_strings].sh_offset +
+               sechdrs[secindex].sh_name;
+}
+
+static int get_symbol_index(struct elf_info *info, Elf_Sym *sym)
+{
+       const char *name =  sym_name(info, sym);
+       const char *idx;
+
+       idx = name;
+       while (idx) {
+               if (isdigit(*idx))
+                       return atoi(idx);
+               idx++;
+       }
+       return -1;
+}
+
+struct opt_tag {
+       const char *suffix;
+       const char *json_id;
+};
+
+static const struct opt_tag opt_tags[] = {
+       {"_param_string_export", "params"},
+};
+
+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);
+}
+
+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, "]}\";");
+               drv = drv->next;
+       }
+
+       fclose(ofd);
+}
+
+int main(int argc, char **argv)
+{
+       struct elf_info info;
+       int rc = 1;
+
+       if (argc < 3) {
+               fprintf(stderr,
+                       "usage: pmdinfo <object file> <c output file>\n");
+               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
new file mode 100644 (file)
index 0000000..1da2966
--- /dev/null
@@ -0,0 +1,120 @@
+
+/* 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>
+#include <fcntl.h>
+#include <unistd.h>
+#include <elf.h>
+#include <rte_config.h>
+#include <rte_pci.h>
+#include <rte_byteorder.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 = rte_le_to_cpu_##width(x); \
+else \
+       ___x = rte_be_to_cpu_##width(x); \
+       ___x; \
+})
+
+#define TO_NATIVE(fend, width, x) CONVERT_NATIVE(fend, width, x)
+
+enum opt_params {
+       PMD_PARAM_STRING = 0,
+       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;
+};
+
index c44d0f8..07b391c 100644 (file)
@@ -41,7 +41,7 @@ include $(RTE_SDK)/mk/internal/rte.depdirs-pre.mk
 VPATH += $(SRCDIR)
 
 _BUILD = $(HOSTAPP)
-_INSTALL = $(INSTALL-FILES-y) $(SYMLINK-FILES-y) $(RTE_OUTPUT)/hostapp/$(HOSTAPP)
+_INSTALL = $(INSTALL-FILES-y) $(SYMLINK-FILES-y) $(RTE_OUTPUT)/app/$(HOSTAPP)
 _CLEAN = doclean
 
 .PHONY: all
@@ -95,10 +95,10 @@ $(HOSTAPP): $(OBJS-y) $(LDLIBS_FILES) FORCE
 #
 # install app in $(RTE_OUTPUT)/hostapp
 #
-$(RTE_OUTPUT)/hostapp/$(HOSTAPP): $(HOSTAPP)
+$(RTE_OUTPUT)/app/$(HOSTAPP): $(HOSTAPP)
        @echo "  INSTALL-HOSTAPP $(HOSTAPP)"
-       @[ -d $(RTE_OUTPUT)/hostapp ] || mkdir -p $(RTE_OUTPUT)/hostapp
-       $(Q)cp -f $(HOSTAPP) $(RTE_OUTPUT)/hostapp
+       @[ -d $(RTE_OUTPUT)/app ] || mkdir -p $(RTE_OUTPUT)/app
+       $(Q)cp -f $(HOSTAPP) $(RTE_OUTPUT)/app
 
 #
 # Clean all generated files
index eec5241..fb68af2 100644 (file)
@@ -64,7 +64,8 @@ build: $(ROOTDIRS-y)
 clean: $(CLEANDIRS)
        @rm -rf $(RTE_OUTPUT)/include $(RTE_OUTPUT)/app \
                $(RTE_OUTPUT)/hostapp $(RTE_OUTPUT)/lib \
-               $(RTE_OUTPUT)/hostlib $(RTE_OUTPUT)/kmod
+               $(RTE_OUTPUT)/hostlib $(RTE_OUTPUT)/kmod \
+               $(RTE_OUTPUT)/buildtools
        @[ -d $(RTE_OUTPUT)/include ] || mkdir -p $(RTE_OUTPUT)/include
        @$(RTE_SDK)/scripts/gen-config-h.sh $(RTE_OUTPUT)/.config \
                > $(RTE_OUTPUT)/include/rte_config.h
index abdab0f..1f3b59c 100644 (file)
@@ -126,6 +126,8 @@ install-runtime:
        $(Q)$(call rte_mkdir,      $(DESTDIR)$(sbindir))
        $(Q)$(call rte_symlink,    $(DESTDIR)$(datadir)/tools/dpdk_nic_bind.py, \
                                   $(DESTDIR)$(sbindir)/dpdk_nic_bind)
+       $(Q)$(call rte_symlink,    $(DESTDIR)$(bindir)/pmdinfogen, \
+                                  $(DESTDIR)$(bindir)/dpdk_pmdinfogen)
 
 install-kmod:
 ifneq ($(wildcard $O/kmod/*),)