summaryrefslogtreecommitdiffstats
path: root/tests/asm-tst3.c
diff options
context:
space:
mode:
Diffstat (limited to 'tests/asm-tst3.c')
-rw-r--r--tests/asm-tst3.c339
1 files changed, 339 insertions, 0 deletions
diff --git a/tests/asm-tst3.c b/tests/asm-tst3.c
new file mode 100644
index 00000000..acec1a48
--- /dev/null
+++ b/tests/asm-tst3.c
@@ -0,0 +1,339 @@
+/* Copyright (C) 2002, 2005 Red Hat, Inc.
+ This file is part of elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ This file 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; either version 3 of the License, or
+ (at your option) any later version.
+
+ 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 this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#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-tst3-out.o";
+
+
+static const char *scnnames[5] =
+ {
+ [0] = "",
+ [1] = ".data",
+ [2] = ".strtab",
+ [3] = ".symtab",
+ [4] = ".shstrtab"
+ };
+
+
+static unsigned int scntypes[5] =
+ {
+ [0] = SHT_NULL,
+ [1] = SHT_PROGBITS,
+ [2] = SHT_STRTAB,
+ [3] = SHT_SYMTAB,
+ [4] = SHT_STRTAB
+ };
+
+
+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 with names. */
+ if (asm_newsym (scn1, "one", 4, STT_OBJECT, STB_GLOBAL) == NULL)
+ {
+ printf ("cannot create first name: %s\n", asm_errmsg (-1));
+ result = 1;
+ }
+ if (asm_addstrz (scn1, "one", 4) != 0)
+ {
+ printf ("cannot insert first string: %s\n", asm_errmsg (-1));
+ result = 1;
+ }
+ if (asm_newsym (scn2, "three", 6, STT_OBJECT, STB_WEAK) == NULL)
+ {
+ printf ("cannot create second name: %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_newsym (scn1, "two", 4, STT_OBJECT, STB_LOCAL) == NULL)
+ {
+ printf ("cannot create third name: %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;
+ }
+
+ for (cnt = 1; cnt < 5; ++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 != scntypes[cnt])
+ {
+ printf ("section %Zd's type differs\n", cnt);
+ result = 1;
+ }
+
+ if ((cnt == 1 && shdr->sh_flags != (SHF_ALLOC | SHF_WRITE))
+ || (cnt != 1 && 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 == 3)
+ {
+ Elf_Data *data;
+
+ if (shdr->sh_link != 2)
+ {
+ puts ("symbol table has incorrect link");
+ result = 1;
+ }
+
+ data = elf_getdata (scn, NULL);
+ if (data == NULL)
+ {
+ puts ("cannot get data of symbol table");
+ result = 1;
+ }
+ else
+ {
+ size_t inner;
+
+ for (inner = 1;
+ inner < (shdr->sh_size
+ / gelf_fsize (elf, ELF_T_SYM, 1, EV_CURRENT));
+ ++inner)
+ {
+ GElf_Sym sym_mem;
+ GElf_Sym *sym;
+
+ sym = gelf_getsym (data, inner, &sym_mem);
+ if (sym == NULL)
+ {
+ printf ("cannot get symbol %zu: %s\n",
+ inner, elf_errmsg (-1));
+ result = 1;
+ }
+ else
+ {
+ /* The order of the third and fourth entry depends
+ on how the hash table is organized. */
+ static const char *names[4] =
+ {
+ [0] = "",
+ [1] = "two",
+ [2] = "one",
+ [3] = "three"
+ };
+ static const int info[4] =
+ {
+ [0] = GELF_ST_INFO (STB_LOCAL, STT_NOTYPE),
+ [1] = GELF_ST_INFO (STB_LOCAL, STT_OBJECT),
+ [2] = GELF_ST_INFO (STB_GLOBAL, STT_OBJECT),
+ [3] = GELF_ST_INFO (STB_WEAK, STT_OBJECT)
+ };
+ static const unsigned value[4] =
+ {
+ [0] = 0,
+ [1] = 4,
+ [2] = 0,
+ [3] = 8
+ };
+
+ if (strcmp (names[inner],
+ elf_strptr (elf, shdr->sh_link,
+ sym->st_name)) != 0)
+ {
+ printf ("symbol %zu has different name\n", inner);
+ result = 1;
+ }
+
+ if (sym->st_value != value[inner])
+ {
+ printf ("symbol %zu has wrong value\n", inner);
+ result = 1;
+ }
+
+ if (sym->st_other != 0)
+ {
+ printf ("symbol %zu has wrong other info\n", inner);
+ result = 1;
+ }
+
+ if (sym->st_shndx != 1)
+ {
+ printf ("symbol %zu has wrong section reference\n",
+ inner);
+ result = 1;
+ }
+
+ if (sym->st_info != info[inner])
+ {
+ printf ("symbol %zu has wrong type or binding\n",
+ inner);
+ result = 1;
+ }
+
+ if ((inner != 3 && sym->st_size != 4)
+ || (inner == 3 && sym->st_size != 6))
+ {
+ printf ("symbol %zu has wrong size\n", inner);
+ 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 2024-07-06 03:26:10 +0000