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-rw-r--r--tests/asm-tst2.c286
1 files changed, 286 insertions, 0 deletions
diff --git a/tests/asm-tst2.c b/tests/asm-tst2.c
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+/* Copyright (C) 2002, 2005 Red Hat, Inc.
+ This file is part of Red Hat elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ Red Hat elfutils is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by the
+ Free Software Foundation; version 2 of the License.
+
+ Red Hat elfutils is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with Red Hat elfutils; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+
+ Red Hat elfutils is an included package of the Open Invention Network.
+ An included package of the Open Invention Network is a package for which
+ Open Invention Network licensees cross-license their patents. No patent
+ license is granted, either expressly or impliedly, by designation as an
+ included package. Should you wish to participate in the Open Invention
+ Network licensing program, please visit www.openinventionnetwork.com
+ <http://www.openinventionnetwork.com>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <fcntl.h>
+#include ELFUTILS_HEADER(asm)
+#include <libelf.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static const char fname[] = "asm-tst2-out.o";
+
+
+static const GElf_Ehdr expected_ehdr =
+ {
+ .e_ident = { [EI_MAG0] = ELFMAG0,
+ [EI_MAG1] = ELFMAG1,
+ [EI_MAG2] = ELFMAG2,
+ [EI_MAG3] = ELFMAG3,
+ [EI_CLASS] = ELFCLASS32,
+ [EI_DATA] = ELFDATA2LSB,
+ [EI_VERSION] = EV_CURRENT },
+ .e_type = ET_REL,
+ .e_machine = EM_386,
+ .e_version = EV_CURRENT,
+ .e_shoff = 96,
+ .e_ehsize = sizeof (Elf32_Ehdr),
+ .e_shentsize = sizeof (Elf32_Shdr),
+ .e_shnum = 3,
+ .e_shstrndx = 2
+ };
+
+
+static const char *scnnames[3] =
+ {
+ [0] = "",
+ [1] = ".data",
+ [2] = ".shstrtab"
+ };
+
+
+int
+main (void)
+{
+ AsmCtx_t *ctx;
+ AsmScn_t *scn1;
+ AsmScn_t *scn2;
+ int result = 0;
+ int fd;
+ Elf *elf;
+ GElf_Ehdr ehdr_mem;
+ GElf_Ehdr *ehdr;
+ size_t cnt;
+
+ elf_version (EV_CURRENT);
+
+ Ebl *ebl = ebl_openbackend_machine (EM_386);
+ if (ebl == NULL)
+ {
+ puts ("cannot open backend library");
+ return 1;
+ }
+
+ ctx = asm_begin (fname, ebl, false);
+ if (ctx == NULL)
+ {
+ printf ("cannot create assembler context: %s\n", asm_errmsg (-1));
+ return 1;
+ }
+
+ /* Create two sections. */
+ scn1 = asm_newscn (ctx, ".data", SHT_PROGBITS, SHF_ALLOC | SHF_WRITE);
+ scn2 = asm_newsubscn (scn1, 1);
+ if (scn1 == NULL || scn2 == NULL)
+ {
+ printf ("cannot create section in output file: %s\n", asm_errmsg (-1));
+ asm_abort (ctx);
+ return 1;
+ }
+
+ /* Special alignment for the .text section. */
+ if (asm_align (scn1, 16) != 0)
+ {
+ printf ("cannot align .text section: %s\n", asm_errmsg (-1));
+ result = 1;
+ }
+
+ /* Add a few strings. */
+ if (asm_addstrz (scn1, "one", 4) != 0)
+ {
+ printf ("cannot insert first string: %s\n", asm_errmsg (-1));
+ result = 1;
+ }
+ if (asm_addstrz (scn2, "three", 0) != 0)
+ {
+ printf ("cannot insert second string: %s\n", asm_errmsg (-1));
+ result = 1;
+ }
+ if (asm_addstrz (scn1, "two", 4) != 0)
+ {
+ printf ("cannot insert third string: %s\n", asm_errmsg (-1));
+ result = 1;
+ }
+
+ /* Create the output file. */
+ if (asm_end (ctx) != 0)
+ {
+ printf ("cannot create output file: %s\n", asm_errmsg (-1));
+ asm_abort (ctx);
+ return 1;
+ }
+
+ /* Check the file. */
+ fd = open (fname, O_RDONLY);
+ if (fd == -1)
+ {
+ printf ("cannot open generated file: %m\n");
+ result = 1;
+ goto out;
+ }
+
+ elf = elf_begin (fd, ELF_C_READ, NULL);
+ if (elf == NULL)
+ {
+ printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1));
+ result = 1;
+ goto out_close;
+ }
+ if (elf_kind (elf) != ELF_K_ELF)
+ {
+ puts ("not a valid ELF file");
+ result = 1;
+ goto out_close2;
+ }
+
+ ehdr = gelf_getehdr (elf, &ehdr_mem);
+ if (ehdr == NULL)
+ {
+ printf ("cannot get ELF header: %s\n", elf_errmsg (-1));
+ result = 1;
+ goto out_close2;
+ }
+
+ if (memcmp (ehdr, &expected_ehdr, sizeof (GElf_Ehdr)) != 0)
+ {
+ puts ("ELF header does not match");
+ result = 1;
+ goto out_close2;
+ }
+
+ for (cnt = 1; cnt < 3; ++cnt)
+ {
+ Elf_Scn *scn;
+ GElf_Shdr shdr_mem;
+ GElf_Shdr *shdr;
+
+ scn = elf_getscn (elf, cnt);
+ if (scn == NULL)
+ {
+ printf ("cannot get section %Zd: %s\n", cnt, elf_errmsg (-1));
+ result = 1;
+ continue;
+ }
+
+ shdr = gelf_getshdr (scn, &shdr_mem);
+ if (shdr == NULL)
+ {
+ printf ("cannot get section header for section %Zd: %s\n",
+ cnt, elf_errmsg (-1));
+ result = 1;
+ continue;
+ }
+
+ if (strcmp (elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name),
+ scnnames[cnt]) != 0)
+ {
+ printf ("section %Zd's name differs: %s vs %s\n", cnt,
+ elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name),
+ scnnames[cnt]);
+ result = 1;
+ }
+
+ if (shdr->sh_type != (cnt == 2 ? SHT_STRTAB : SHT_PROGBITS))
+ {
+ printf ("section %Zd's type differs\n", cnt);
+ result = 1;
+ }
+
+ if ((cnt == 1 && shdr->sh_flags != (SHF_ALLOC | SHF_WRITE))
+ || (cnt == 2 && shdr->sh_flags != 0))
+ {
+ printf ("section %Zd's flags differs\n", cnt);
+ result = 1;
+ }
+
+ if (shdr->sh_addr != 0)
+ {
+ printf ("section %Zd's address differs\n", cnt);
+ result = 1;
+ }
+
+ if ((cnt == 1 && shdr->sh_offset != ((sizeof (Elf32_Ehdr) + 15) & ~15))
+ || (cnt == 2
+ && shdr->sh_offset != (((sizeof (Elf32_Ehdr) + 15) & ~15)
+ + strlen ("one") + 1
+ + strlen ("two") + 1
+ + strlen ("three") + 1)))
+ {
+ printf ("section %Zd's offset differs\n", cnt);
+ result = 1;
+ }
+
+ if ((cnt == 1 && shdr->sh_size != (strlen ("one") + 1
+ + strlen ("two") + 1
+ + strlen ("three") + 1))
+ || (cnt == 2 && shdr->sh_size != 17))
+ {
+ printf ("section %Zd's size differs\n", cnt);
+ result = 1;
+ }
+
+ if (shdr->sh_link != 0)
+ {
+ printf ("section %Zd's link differs\n", cnt);
+ result = 1;
+ }
+
+ if (shdr->sh_info != 0)
+ {
+ printf ("section %Zd's info differs\n", cnt);
+ result = 1;
+ }
+
+ if ((cnt == 1 && shdr->sh_addralign != 16)
+ || (cnt != 1 && shdr->sh_addralign != 1))
+ {
+ printf ("section %Zd's addralign differs\n", cnt);
+ result = 1;
+ }
+
+ if (shdr->sh_entsize != 0)
+ {
+ printf ("section %Zd's entsize differs\n", cnt);
+ result = 1;
+ }
+ }
+
+ out_close2:
+ elf_end (elf);
+ out_close:
+ close (fd);
+ out:
+ /* We don't need the file anymore. */
+ unlink (fname);
+
+ ebl_closebackend (ebl);
+
+ return result;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 18:37:09 +0000