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[37.110.65.23]) by smtp.gmail.com with ESMTPSA id v11sm1119753ljg.128.2021.01.22.14.43.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Jan 2021 14:43:39 -0800 (PST) From: Dmitry Kozlyuk To: dev@dpdk.org Cc: Maxime Coquelin , Bruce Richardson , Thomas Monjalon , Dmitry Kozlyuk Date: Sat, 23 Jan 2021 01:43:27 +0300 Message-Id: <20210122224327.5621-4-dmitry.kozliuk@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210122224327.5621-1-dmitry.kozliuk@gmail.com> References: <20201020174404.28653-1-dmitry.kozliuk@gmail.com> <20210122224327.5621-1-dmitry.kozliuk@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH v9 3/3] pmdinfogen: remove C implementation X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Delete the files no longer used in build process. Add myself as maintainer of new implementation. Signed-off-by: Dmitry Kozlyuk --- MAINTAINERS | 3 +- buildtools/pmdinfogen/meson.build | 14 - buildtools/pmdinfogen/pmdinfogen.c | 456 ----------------------------- buildtools/pmdinfogen/pmdinfogen.h | 119 -------- 4 files changed, 2 insertions(+), 590 deletions(-) delete mode 100644 buildtools/pmdinfogen/meson.build delete mode 100644 buildtools/pmdinfogen/pmdinfogen.c delete mode 100644 buildtools/pmdinfogen/pmdinfogen.h diff --git a/MAINTAINERS b/MAINTAINERS index aa973a396..65f6fffd1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -133,7 +133,8 @@ F: lib/*/*.map Driver information M: Neil Horman -F: buildtools/pmdinfogen/ +M: Dmitry Kozlyuk +F: buildtools/pmdinfogen.py F: usertools/dpdk-pmdinfo.py F: doc/guides/tools/pmdinfo.rst diff --git a/buildtools/pmdinfogen/meson.build b/buildtools/pmdinfogen/meson.build deleted file mode 100644 index 670528fac..000000000 --- a/buildtools/pmdinfogen/meson.build +++ /dev/null @@ -1,14 +0,0 @@ -# SPDX-License-Identifier: BSD-3-Clause -# Copyright(c) 2017 Intel Corporation - -if is_windows - subdir_done() -endif - -pmdinfogen_inc = [global_inc] -pmdinfogen_inc += include_directories('../../lib/librte_eal/include') -pmdinfogen_inc += include_directories('../../lib/librte_pci') -pmdinfogen = executable('pmdinfogen', - 'pmdinfogen.c', - include_directories: pmdinfogen_inc, - native: true) diff --git a/buildtools/pmdinfogen/pmdinfogen.c b/buildtools/pmdinfogen/pmdinfogen.c deleted file mode 100644 index a68d1ea99..000000000 --- a/buildtools/pmdinfogen/pmdinfogen.c +++ /dev/null @@ -1,456 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 - * Postprocess pmd object files to export hw support - * - * Copyright 2016 Neil Horman - * Based in part on modpost.c from the linux kernel - */ - -#include -#include -#include -#include -#include -#include -#include - -#include -#include "pmdinfogen.h" - -#ifdef RTE_ARCH_64 -#define ADDR_SIZE 64 -#else -#define ADDR_SIZE 32 -#endif - -static int use_stdin, use_stdout; - -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 = -1; - - if (!use_stdin) { - fd = open(filename, O_RDONLY); - if (fd < 0) - return NULL; - } else { - /* from stdin, use a temporary file to mmap */ - FILE *infile; - char buffer[1024]; - int n; - - infile = tmpfile(); - if (infile == NULL) { - perror("tmpfile"); - return NULL; - } - fd = dup(fileno(infile)); - fclose(infile); - if (fd < 0) - return NULL; - - n = read(STDIN_FILENO, buffer, sizeof(buffer)); - while (n > 0) { - if (write(fd, buffer, n) != n) - goto failed; - n = read(STDIN_FILENO, buffer, sizeof(buffer)); - } - } - - 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, ADDR_SIZE, 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, ADDR_SIZE, 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); - if (new == NULL) { - fprintf(stderr, "Failed to calloc memory\n"); - return -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; - - if (use_stdout) - ofd = stdout; - else { - 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 = {0}; - int rc = 1; - - if (argc < 3) { - fprintf(stderr, - "usage: %s \n", - basename(argv[0])); - exit(127); - } - use_stdin = !strcmp(argv[1], "-"); - use_stdout = !strcmp(argv[2], "-"); - parse_elf(&info, argv[1]); - - if (locate_pmd_entries(&info) < 0) - exit(1); - - 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 38fd3ddcc..000000000 --- a/buildtools/pmdinfogen/pmdinfogen.h +++ /dev/null @@ -1,119 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 - * Postprocess pmd object files to export hw support - * - * Copyright 2016 Neil Horman - * Based in part on modpost.c from the linux kernel - */ - -#include -#include -#include -#include -#include -#include -#include -#ifdef __linux__ -#include -#else -#include -#endif -#include -#include -#include -#include - -/* 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; -}; -- 2.29.2