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Test adding and removing a symbol file at runtime.
This test exercises the commands 'add-symbol-file' and 'remove-symbol-file'. 2013-10-29 Nicolas Blanc <nicolas.blanc@intel.com> gdb/testsuite * gdb.base/sym-file-lib.c: New file. * gdb.base/sym-file-loader.c: New file. * gdb.base/sym-file-loader.h: New file. * gdb.base/sym-file-main.c: New file. * gdb.base/sym-file.exp: New file. Signed-off-by: Nicolas Blanc <nicolas.blanc@intel.com>
This commit is contained in:
Nicolas Blanc
26
gdb/testsuite/gdb.base/sym-file-lib.c
Normal file
26
gdb/testsuite/gdb.base/sym-file-lib.c
Normal file
@ -0,0 +1,26 @@
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/* Copyright 2013 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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|
GNU General Public License for more details.
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|
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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extern int
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bar ()
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{
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return 1; /* gdb break at bar */
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}
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extern int
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foo (int a)
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{
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return a; /* gdb break at foo */
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}
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353
gdb/testsuite/gdb.base/sym-file-loader.c
Normal file
353
gdb/testsuite/gdb.base/sym-file-loader.c
Normal file
@ -0,0 +1,353 @@
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/* Copyright 2013 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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|
the Free Software Foundation; either version 3 of the License, or
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|
(at your option) any later version.
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|
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This program is distributed in the hope that it will be useful,
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|
but WITHOUT ANY WARRANTY; without even the implied warranty of
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|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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|
GNU General Public License for more details.
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|
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You should have received a copy of the GNU General Public License
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|
along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include "sym-file-loader.h"
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#ifdef TARGET_LP64
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uint8_t
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elf_st_type (uint8_t st_info)
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{
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return ELF64_ST_TYPE (st_info);
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}
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#elif defined TARGET_ILP32
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uint8_t
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elf_st_type (uint8_t st_info)
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{
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return ELF32_ST_TYPE (st_info);
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}
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#endif
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/* Load a program segment. */
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static struct segment *
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load (uint8_t *addr, Elf_External_Phdr *phdr, struct segment *tail_seg)
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{
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struct segment *seg = NULL;
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uint8_t *mapped_addr = NULL;
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void *from = NULL;
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void *to = NULL;
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/* For the sake of simplicity all operations are permitted. */
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unsigned perm = PROT_READ | PROT_WRITE | PROT_EXEC;
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mapped_addr = (uint8_t *) mmap ((void *) GETADDR (phdr, p_vaddr),
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GET (phdr, p_memsz), perm,
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MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
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from = (void *) (addr + GET (phdr, p_offset));
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to = (void *) mapped_addr;
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memcpy (to, from, GET (phdr, p_filesz));
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seg = (struct segment *) malloc (sizeof (struct segment));
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if (seg == 0)
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return 0;
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seg->mapped_addr = mapped_addr;
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seg->phdr = phdr;
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seg->next = 0;
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if (tail_seg != 0)
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tail_seg->next = seg;
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return seg;
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}
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/* Mini shared library loader. No reallocation
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is performed for the sake of simplicity. */
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int
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load_shlib (const char *file, Elf_External_Ehdr **ehdr_out,
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struct segment **seg_out)
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{
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uint64_t i;
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int fd;
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off_t fsize;
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uint8_t *addr;
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Elf_External_Ehdr *ehdr;
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Elf_External_Phdr *phdr;
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struct segment *head_seg = NULL;
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struct segment *tail_seg = NULL;
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/* Map the lib in memory for reading. */
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fd = open (file, O_RDONLY);
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if (fd < 0)
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{
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perror ("fopen failed.");
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return -1;
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}
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fsize = lseek (fd, 0, SEEK_END);
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if (fsize < 0)
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{
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perror ("lseek failed.");
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return -1;
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}
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addr = (uint8_t *) mmap (NULL, fsize, PROT_READ, MAP_PRIVATE, fd, 0);
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if (addr == (uint8_t *) -1)
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{
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perror ("mmap failed.");
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return -1;
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}
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/* Check if the lib is an ELF file. */
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ehdr = (Elf_External_Ehdr *) addr;
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if (ehdr->e_ident[EI_MAG0] != ELFMAG0
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|| ehdr->e_ident[EI_MAG1] != ELFMAG1
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|| ehdr->e_ident[EI_MAG2] != ELFMAG2
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|| ehdr->e_ident[EI_MAG3] != ELFMAG3)
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{
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printf ("Not an ELF file: %x\n", ehdr->e_ident[EI_MAG0]);
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return -1;
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}
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if (ehdr->e_ident[EI_CLASS] == ELFCLASS32)
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{
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if (sizeof (void *) != 4)
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{
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printf ("Architecture mismatch.");
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return -1;
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}
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}
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else if (ehdr->e_ident[EI_CLASS] == ELFCLASS64)
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{
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if (sizeof (void *) != 8)
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{
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printf ("Architecture mismatch.");
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return -1;
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}
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}
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/* Load the program segments. For the sake of simplicity
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assume that no reallocation is needed. */
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phdr = (Elf_External_Phdr *) (addr + GET (ehdr, e_phoff));
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for (i = 0; i < GET (ehdr, e_phnum); i++, phdr++)
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{
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if (GET (phdr, p_type) == PT_LOAD)
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{
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struct segment *next_seg = load (addr, phdr, tail_seg);
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if (next_seg == 0)
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continue;
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tail_seg = next_seg;
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if (head_seg == 0)
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head_seg = next_seg;
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}
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}
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*ehdr_out = ehdr;
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*seg_out = head_seg;
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return 0;
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}
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/* Return the section-header table. */
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Elf_External_Shdr *
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find_shdrtab (Elf_External_Ehdr *ehdr)
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{
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return (Elf_External_Shdr *) (((uint8_t *) ehdr) + GET (ehdr, e_shoff));
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}
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/* Return the string table of the section headers. */
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const char *
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find_shstrtab (Elf_External_Ehdr *ehdr, uint64_t *size)
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{
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const Elf_External_Shdr *shdr;
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const Elf_External_Shdr *shstr;
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if (GET (ehdr, e_shnum) <= GET (ehdr, e_shstrndx))
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{
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printf ("The index of the string table is corrupt.");
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return NULL;
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}
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shdr = find_shdrtab (ehdr);
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shstr = &shdr[GET (ehdr, e_shstrndx)];
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*size = GET (shstr, sh_size);
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return ((const char *) ehdr) + GET (shstr, sh_offset);
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}
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/* Return the string table named SECTION. */
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const char *
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find_strtab (Elf_External_Ehdr *ehdr,
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const char *section, uint64_t *strtab_size)
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{
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uint64_t shstrtab_size = 0;
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const char *shstrtab;
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uint64_t i;
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const Elf_External_Shdr *shdr = find_shdrtab (ehdr);
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/* Get the string table of the section headers. */
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shstrtab = find_shstrtab (ehdr, &shstrtab_size);
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if (shstrtab == NULL)
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return NULL;
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for (i = 0; i < GET (ehdr, e_shnum); i++)
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{
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uint64_t name = GET (shdr + i, sh_name);
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if (GET (shdr + i, sh_type) == SHT_STRTAB && name <= shstrtab_size
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&& strcmp ((const char *) &shstrtab[name], section) == 0)
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{
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*strtab_size = GET (shdr + i, sh_size);
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return ((const char *) ehdr) + GET (shdr + i, sh_offset);
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|
}
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|
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||||||
|
}
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||||||
|
return NULL;
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||||||
|
}
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||||||
|
|
||||||
|
/* Return the section header named SECTION. */
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||||||
|
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||||||
|
Elf_External_Shdr *
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||||||
|
find_shdr (Elf_External_Ehdr *ehdr, const char *section)
|
||||||
|
{
|
||||||
|
uint64_t shstrtab_size = 0;
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||||||
|
const char *shstrtab;
|
||||||
|
uint64_t i;
|
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|
|
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|
/* Get the string table of the section headers. */
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|
shstrtab = find_shstrtab (ehdr, &shstrtab_size);
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|
if (shstrtab == NULL)
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
Elf_External_Shdr *shdr = find_shdrtab (ehdr);
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|
for (i = 0; i < GET (ehdr, e_shnum); i++)
|
||||||
|
{
|
||||||
|
uint64_t name = GET (shdr + i, sh_name);
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||||||
|
if (name <= shstrtab_size)
|
||||||
|
{
|
||||||
|
if (strcmp ((const char *) &shstrtab[name], section) == 0)
|
||||||
|
return &shdr[i];
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Return the symbol table. */
|
||||||
|
|
||||||
|
Elf_External_Sym *
|
||||||
|
find_symtab (Elf_External_Ehdr *ehdr, uint64_t *symtab_size)
|
||||||
|
{
|
||||||
|
uint64_t i;
|
||||||
|
const Elf_External_Shdr *shdr = find_shdrtab (ehdr);
|
||||||
|
|
||||||
|
for (i = 0; i < GET (ehdr, e_shnum); i++)
|
||||||
|
{
|
||||||
|
if (GET (shdr + i, sh_type) == SHT_SYMTAB)
|
||||||
|
{
|
||||||
|
*symtab_size = GET (shdr + i, sh_size) / sizeof (Elf_External_Sym);
|
||||||
|
return (Elf_External_Sym *) (((const char *) ehdr) +
|
||||||
|
GET (shdr + i, sh_offset));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Translate a file offset to an address in a loaded segment. */
|
||||||
|
|
||||||
|
int
|
||||||
|
translate_offset (uint64_t file_offset, struct segment *seg, void **addr)
|
||||||
|
{
|
||||||
|
while (seg)
|
||||||
|
{
|
||||||
|
uint64_t p_from, p_to;
|
||||||
|
|
||||||
|
Elf_External_Phdr *phdr = seg->phdr;
|
||||||
|
|
||||||
|
if (phdr == NULL)
|
||||||
|
{
|
||||||
|
seg = seg->next;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
p_from = GET (phdr, p_offset);
|
||||||
|
p_to = p_from + GET (phdr, p_filesz);
|
||||||
|
|
||||||
|
if (p_from <= file_offset && file_offset < p_to)
|
||||||
|
{
|
||||||
|
*addr = (void *) (seg->mapped_addr + (file_offset - p_from));
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
seg = seg->next;
|
||||||
|
}
|
||||||
|
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Lookup the address of FUNC. */
|
||||||
|
|
||||||
|
int
|
||||||
|
lookup_function (const char *func,
|
||||||
|
Elf_External_Ehdr *ehdr, struct segment *seg, void **addr)
|
||||||
|
{
|
||||||
|
const char *strtab;
|
||||||
|
uint64_t strtab_size = 0;
|
||||||
|
Elf_External_Sym *symtab;
|
||||||
|
uint64_t symtab_size = 0;
|
||||||
|
uint64_t i;
|
||||||
|
|
||||||
|
/* Get the string table for the symbols. */
|
||||||
|
strtab = find_strtab (ehdr, ".strtab", &strtab_size);
|
||||||
|
if (strtab == NULL)
|
||||||
|
{
|
||||||
|
printf (".strtab not found.");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Get the symbol table. */
|
||||||
|
symtab = find_symtab (ehdr, &symtab_size);
|
||||||
|
if (symtab == NULL)
|
||||||
|
{
|
||||||
|
printf ("symbol table not found.");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (i = 0; i < symtab_size; i++)
|
||||||
|
{
|
||||||
|
Elf_External_Sym *sym = &symtab[i];
|
||||||
|
|
||||||
|
if (elf_st_type (GET (sym, st_info)) != STT_FUNC)
|
||||||
|
continue;
|
||||||
|
|
||||||
|
if (GET (sym, st_name) < strtab_size)
|
||||||
|
{
|
||||||
|
const char *name = &strtab[GET (sym, st_name)];
|
||||||
|
if (strcmp (name, func) == 0)
|
||||||
|
{
|
||||||
|
|
||||||
|
uint64_t offset = GET (sym, st_value);
|
||||||
|
return translate_offset (offset, seg, addr);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
99
gdb/testsuite/gdb.base/sym-file-loader.h
Normal file
99
gdb/testsuite/gdb.base/sym-file-loader.h
Normal file
@ -0,0 +1,99 @@
|
|||||||
|
/* Copyright 2013 Free Software Foundation, Inc.
|
||||||
|
This program 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.
|
||||||
|
|
||||||
|
This program 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/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __SYM_FILE_LOADER__
|
||||||
|
#define __SYM_FILE_LOADER__
|
||||||
|
|
||||||
|
#include <inttypes.h>
|
||||||
|
#include <ansidecl.h>
|
||||||
|
#include <elf/common.h>
|
||||||
|
#include <elf/external.h>
|
||||||
|
|
||||||
|
#ifdef TARGET_LP64
|
||||||
|
|
||||||
|
typedef Elf64_External_Phdr Elf_External_Phdr;
|
||||||
|
typedef Elf64_External_Ehdr Elf_External_Ehdr;
|
||||||
|
typedef Elf64_External_Shdr Elf_External_Shdr;
|
||||||
|
typedef Elf64_External_Sym Elf_External_Sym;
|
||||||
|
typedef uint64_t Elf_Addr;
|
||||||
|
|
||||||
|
#elif defined TARGET_ILP32
|
||||||
|
|
||||||
|
typedef Elf32_External_Phdr Elf_External_Phdr;
|
||||||
|
typedef Elf32_External_Ehdr Elf_External_Ehdr;
|
||||||
|
typedef Elf32_External_Shdr Elf_External_Shdr;
|
||||||
|
typedef Elf32_External_Sym Elf_External_Sym;
|
||||||
|
typedef uint32_t Elf_Addr;
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#define GET(hdr, field) (\
|
||||||
|
sizeof ((hdr)->field) == 1 ? (uint64_t) (hdr)->field[0] : \
|
||||||
|
sizeof ((hdr)->field) == 2 ? (uint64_t) *(uint16_t *) (hdr)->field : \
|
||||||
|
sizeof ((hdr)->field) == 4 ? (uint64_t) *(uint32_t *) (hdr)->field : \
|
||||||
|
sizeof ((hdr)->field) == 8 ? *(uint64_t *) (hdr)->field : \
|
||||||
|
*(uint64_t *) NULL)
|
||||||
|
|
||||||
|
#define GETADDR(hdr, field) (\
|
||||||
|
sizeof ((hdr)->field) == sizeof (Elf_Addr) ? *(Elf_Addr *) (hdr)->field : \
|
||||||
|
*(Elf_Addr *) NULL)
|
||||||
|
|
||||||
|
struct segment
|
||||||
|
{
|
||||||
|
uint8_t *mapped_addr;
|
||||||
|
Elf_External_Phdr *phdr;
|
||||||
|
struct segment *next;
|
||||||
|
};
|
||||||
|
|
||||||
|
/* Mini shared library loader. No reallocation is performed
|
||||||
|
for the sake of simplicity. */
|
||||||
|
|
||||||
|
int
|
||||||
|
load_shlib (const char *file, Elf_External_Ehdr **ehdr_out,
|
||||||
|
struct segment **seg_out);
|
||||||
|
|
||||||
|
/* Return the section-header table. */
|
||||||
|
|
||||||
|
Elf_External_Shdr *find_shdrtab (Elf_External_Ehdr *ehdr);
|
||||||
|
|
||||||
|
/* Return the string table of the section headers. */
|
||||||
|
|
||||||
|
const char *find_shstrtab (Elf_External_Ehdr *ehdr, uint64_t *size);
|
||||||
|
|
||||||
|
/* Return the string table named SECTION. */
|
||||||
|
|
||||||
|
const char *find_strtab (Elf_External_Ehdr *ehdr,
|
||||||
|
const char *section, uint64_t *strtab_size);
|
||||||
|
|
||||||
|
/* Return the section header named SECTION. */
|
||||||
|
|
||||||
|
Elf_External_Shdr *find_shdr (Elf_External_Ehdr *ehdr, const char *section);
|
||||||
|
|
||||||
|
/* Return the symbol table. */
|
||||||
|
|
||||||
|
Elf_External_Sym *find_symtab (Elf_External_Ehdr *ehdr,
|
||||||
|
uint64_t *symtab_size);
|
||||||
|
|
||||||
|
/* Translate a file offset to an address in a loaded segment. */
|
||||||
|
|
||||||
|
int translate_offset (uint64_t file_offset, struct segment *seg, void **addr);
|
||||||
|
|
||||||
|
/* Lookup the address of FUNC. */
|
||||||
|
|
||||||
|
int
|
||||||
|
lookup_function (const char *func, Elf_External_Ehdr* ehdr,
|
||||||
|
struct segment *seg, void **addr);
|
||||||
|
|
||||||
|
#endif
|
||||||
79
gdb/testsuite/gdb.base/sym-file-main.c
Normal file
79
gdb/testsuite/gdb.base/sym-file-main.c
Normal file
@ -0,0 +1,79 @@
|
|||||||
|
/* Copyright 2013 Free Software Foundation, Inc.
|
||||||
|
This program 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.
|
||||||
|
|
||||||
|
This program 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/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
#include "sym-file-loader.h"
|
||||||
|
|
||||||
|
void
|
||||||
|
gdb_add_symbol_file (void *addr, const char *file)
|
||||||
|
{
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
gdb_remove_symbol_file (void *addr)
|
||||||
|
{
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Load a shared library without relying on the standard
|
||||||
|
loader to test GDB's commands for adding and removing
|
||||||
|
symbol files at runtime. */
|
||||||
|
|
||||||
|
int
|
||||||
|
main (int argc, const char *argv[])
|
||||||
|
{
|
||||||
|
const char *file = SHLIB_NAME;
|
||||||
|
Elf_External_Ehdr *ehdr = NULL;
|
||||||
|
struct segment *head_seg = NULL;
|
||||||
|
Elf_External_Shdr *text;
|
||||||
|
char *text_addr = NULL;
|
||||||
|
int (*pbar) () = NULL;
|
||||||
|
int (*pfoo) (int) = NULL;
|
||||||
|
|
||||||
|
if (load_shlib (file, &ehdr, &head_seg) != 0)
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* Get the text section. */
|
||||||
|
text = find_shdr (ehdr, ".text");
|
||||||
|
if (text == NULL)
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* Notify GDB to add the symbol file. */
|
||||||
|
if (translate_offset (GET (text, sh_offset), head_seg, (void **) &text_addr)
|
||||||
|
!= 0)
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
gdb_add_symbol_file (text_addr, file);
|
||||||
|
|
||||||
|
/* Call bar from SHLIB_NAME. */
|
||||||
|
if (lookup_function ("bar", ehdr, head_seg, (void *) &pbar) != 0)
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
(*pbar) ();
|
||||||
|
|
||||||
|
/* Call foo from SHLIB_NAME. */
|
||||||
|
if (lookup_function ("foo", ehdr, head_seg, (void *) &pfoo) != 0)
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
(*pfoo) (2);
|
||||||
|
|
||||||
|
/* Notify GDB to remove the symbol file. */
|
||||||
|
gdb_remove_symbol_file (text_addr);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
158
gdb/testsuite/gdb.base/sym-file.exp
Normal file
158
gdb/testsuite/gdb.base/sym-file.exp
Normal file
@ -0,0 +1,158 @@
|
|||||||
|
# Copyright 2013 Free Software Foundation, Inc.
|
||||||
|
|
||||||
|
# This program 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.
|
||||||
|
#
|
||||||
|
# This program 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/>. */
|
||||||
|
|
||||||
|
# Test adding and removing a symbol file dynamically:
|
||||||
|
# 1) Run to gdb_add_symbol_file in $srcfile.
|
||||||
|
# 2) Set a pending breakpoint at bar in $srcfile3.
|
||||||
|
# 3) Load $shlib_name using 'add-symbol-file'.
|
||||||
|
# 4) 'info files' must display ${lib_basename}.
|
||||||
|
# 5) Continue to bar in $srcfile3.
|
||||||
|
# 6) Set a breakpoint at foo in $srcfile3.
|
||||||
|
# 7) Continue to foo in $srcfile3.
|
||||||
|
# 8) Set a breakpoint at gdb_remove_symbol_file.
|
||||||
|
# 9) Continue to gdb_remove_symbol_file in $srcfile.
|
||||||
|
# 10) Remove $shlib_name using 'remove-symbol-file'.
|
||||||
|
# 11) 'info files' must not display ${lib_basename}, anymore.
|
||||||
|
# 12) Check that the breakpoints at foo and bar are pending.
|
||||||
|
# 13) Check that the execution can continue without error.
|
||||||
|
|
||||||
|
if {![is_elf_target]} {
|
||||||
|
return 0
|
||||||
|
}
|
||||||
|
|
||||||
|
if [skip_shlib_tests] {
|
||||||
|
return 0
|
||||||
|
}
|
||||||
|
|
||||||
|
if [is_remote target] {
|
||||||
|
return 0
|
||||||
|
}
|
||||||
|
|
||||||
|
set target_size TARGET_UNKNOWN
|
||||||
|
if {[is_lp64_target]} {
|
||||||
|
set target_size TARGET_LP64
|
||||||
|
} elseif {[is_ilp32_target]} {
|
||||||
|
set target_size TARGET_ILP32
|
||||||
|
} else {
|
||||||
|
return 0
|
||||||
|
}
|
||||||
|
|
||||||
|
set main_basename sym-file-main
|
||||||
|
set loader_basename sym-file-loader
|
||||||
|
set lib_basename sym-file-lib
|
||||||
|
|
||||||
|
standard_testfile $main_basename.c $loader_basename.c $lib_basename.c
|
||||||
|
|
||||||
|
set libsrc "${srcdir}/${subdir}/${srcfile3}"
|
||||||
|
set shlib_name [standard_output_file ${lib_basename}.so]
|
||||||
|
set exec_opts [list debug "additional_flags= -I$srcdir/../../include/ -D$target_size\
|
||||||
|
-DSHLIB_NAME\\=\"$shlib_name\""]
|
||||||
|
|
||||||
|
if [get_compiler_info] {
|
||||||
|
return -1
|
||||||
|
}
|
||||||
|
|
||||||
|
if {[gdb_compile_shlib $libsrc $shlib_name {debug}] != ""} {
|
||||||
|
untested ${testfile}
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
if {[prepare_for_testing $testfile $binfile "$srcfile $srcfile2" $exec_opts]} {
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
# 1) Run to GDB_ADD_SYMBOl_FILE in $srcfile for adding
|
||||||
|
# $shlib_name.
|
||||||
|
set result [runto gdb_add_symbol_file]
|
||||||
|
if {!$result} then {
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
# 2) Set a pending breakpoint at bar in $srcfile3.
|
||||||
|
set result [gdb_breakpoint bar allow-pending]
|
||||||
|
if {!$result} then {
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
# 3) Add $shlib_name using 'add-symbol-file'.
|
||||||
|
set result [gdb_test "add-symbol-file ${shlib_name} addr" \
|
||||||
|
"Reading symbols from .*${lib_basename}\\.so\\.\\.\\.done\\." \
|
||||||
|
"add-symbol-file .*${lib_basename}\\.so addr" \
|
||||||
|
"add symbol table from file \".*${lib_basename}\\.so\"\
|
||||||
|
at.*\\(y or n\\) " \
|
||||||
|
"y"]
|
||||||
|
if {$result != 0} then {
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
# 4) 'info files' must display $srcfile3.
|
||||||
|
gdb_test "info files" \
|
||||||
|
"^(?=(.*${lib_basename})).*" \
|
||||||
|
"info files must display ${lib_basename}"
|
||||||
|
|
||||||
|
# 5) Continue to bar in $srcfile3 to ensure that the breakpoint
|
||||||
|
# was bound correctly after adding $shilb_name.
|
||||||
|
set lnum_bar [gdb_get_line_number "break at bar" $srcfile3]
|
||||||
|
gdb_continue_to_breakpoint bar ".*${lib_basename}\\.c:$lnum_bar.*"
|
||||||
|
|
||||||
|
# 6) Set a breakpoint at foo in $srcfile3.
|
||||||
|
set result [gdb_breakpoint foo]
|
||||||
|
if {!$result} then {
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
# 7) Continue to foo in $srcfile3 to ensure that the breakpoint
|
||||||
|
# was bound correctly.
|
||||||
|
set lnum_foo [gdb_get_line_number "break at foo" $srcfile3]
|
||||||
|
gdb_continue_to_breakpoint foo ".*${lib_basename}\\.c:$lnum_foo.*"
|
||||||
|
|
||||||
|
# 8) Set a breakpoint at gdb_remove_symbol_file in $srcfile for
|
||||||
|
# removing $shlib_name.
|
||||||
|
set result [gdb_breakpoint gdb_remove_symbol_file]
|
||||||
|
if {!$result} then {
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
# 9) Continue to gdb_remove_symbol_file in $srcfile.
|
||||||
|
gdb_continue_to_breakpoint gdb_remove_symbol_file
|
||||||
|
|
||||||
|
# 10) Remove $shlib_name using 'remove-symbol-file'.
|
||||||
|
set result [gdb_test "remove-symbol-file -a addr" \
|
||||||
|
""\
|
||||||
|
"remove-symbol-file -a addr" \
|
||||||
|
"Remove symbol table from file \".*${lib_basename}\\.so\"\\?\
|
||||||
|
.*\\(y or n\\) " \
|
||||||
|
"y"]
|
||||||
|
if {$result != 0} then {
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
# 11) 'info files' must not display ${lib_basename}, anymore.
|
||||||
|
gdb_test "info files" \
|
||||||
|
"^(?!(.*${lib_basename})).*" \
|
||||||
|
"info files must not display ${lib_basename}"
|
||||||
|
|
||||||
|
# 12) Check that the breakpoints at foo and bar are pending after removing
|
||||||
|
# $shlib_name.
|
||||||
|
gdb_test "info breakpoints 2" \
|
||||||
|
".*PENDING.*" \
|
||||||
|
"check if Breakpoint 2 is pending."
|
||||||
|
|
||||||
|
gdb_test "info breakpoints 3" \
|
||||||
|
".*PENDING.*" \
|
||||||
|
"check if Breakpoint 3 is pending."
|
||||||
|
|
||||||
|
# 13) Check that the execution can continue without error.
|
||||||
|
gdb_continue_to_end
|
||||||
Reference in New Issue
Block a user