mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-11-28 18:07:37 +01:00
Whitespace cleanup
This commit is contained in:
Arun Sharma
parent
0c0ea23cf2
commit
0628a9872c
1 changed files with 136 additions and 132 deletions
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@ -122,15 +122,15 @@ _UCD_create(const char *filename)
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if (_64bits && sizeof(elf_header64.e_entry) > sizeof(off_t))
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{
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Debug(0, "Can't process '%s': 64-bit file "
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"while only %ld bits are supported",
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filename, 8L * sizeof(off_t));
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"while only %ld bits are supported",
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filename, 8L * sizeof(off_t));
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goto err;
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}
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/* paranoia check */
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if (_64bits
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? 0 /* todo: (elf_header64.e_ehsize != NN || elf_header64.e_phentsize != NN) */
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: (elf_header32.e_ehsize != 52 || elf_header32.e_phentsize != 32)
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? 0 /* todo: (elf_header64.e_ehsize != NN || elf_header64.e_phentsize != NN) */
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: (elf_header32.e_ehsize != 52 || elf_header32.e_phentsize != 32)
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)
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{
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Debug(0, "'%s' has wrong e_ehsize or e_phentsize\n", filename);
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@ -150,139 +150,143 @@ _UCD_create(const char *filename)
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coredump_phdr_t *cur = phdrs;
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unsigned i = 0;
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while (i < size)
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{
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{
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Elf64_Phdr hdr64;
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if (read(fd, &hdr64, sizeof(hdr64)) != sizeof(hdr64))
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{
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Debug(0, "Can't read phdrs from '%s'\n", filename);
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goto err;
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}
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cur->p_type = hdr64.p_type ;
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cur->p_flags = hdr64.p_flags ;
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cur->p_offset = hdr64.p_offset;
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cur->p_vaddr = hdr64.p_vaddr ;
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/*cur->p_paddr = hdr32.p_paddr ; always 0 */
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if (read(fd, &hdr64, sizeof(hdr64)) != sizeof(hdr64))
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{
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Debug(0, "Can't read phdrs from '%s'\n", filename);
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goto err;
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}
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cur->p_type = hdr64.p_type ;
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cur->p_flags = hdr64.p_flags ;
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cur->p_offset = hdr64.p_offset;
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cur->p_vaddr = hdr64.p_vaddr ;
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/*cur->p_paddr = hdr32.p_paddr ; always 0 */
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//TODO: check that and abort if it isn't?
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cur->p_filesz = hdr64.p_filesz;
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cur->p_memsz = hdr64.p_memsz ;
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cur->p_align = hdr64.p_align ;
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/* cur->backing_filename = NULL; - done by memset */
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cur->backing_fd = -1;
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cur->backing_filesize = hdr64.p_filesz;
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i++;
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cur++;
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}
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cur->p_filesz = hdr64.p_filesz;
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cur->p_memsz = hdr64.p_memsz ;
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cur->p_align = hdr64.p_align ;
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/* cur->backing_filename = NULL; - done by memset */
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cur->backing_fd = -1;
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cur->backing_filesize = hdr64.p_filesz;
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i++;
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cur++;
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}
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} else {
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coredump_phdr_t *cur = phdrs;
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unsigned i = 0;
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while (i < size)
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{
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Elf32_Phdr hdr32;
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if (read(fd, &hdr32, sizeof(hdr32)) != sizeof(hdr32))
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{
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Debug(0, "Can't read phdrs from '%s'\n", filename);
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goto err;
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}
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cur->p_type = hdr32.p_type ;
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cur->p_flags = hdr32.p_flags ;
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cur->p_offset = hdr32.p_offset;
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cur->p_vaddr = hdr32.p_vaddr ;
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/*cur->p_paddr = hdr32.p_paddr ; always 0 */
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cur->p_filesz = hdr32.p_filesz;
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cur->p_memsz = hdr32.p_memsz ;
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cur->p_align = hdr32.p_align ;
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/* cur->backing_filename = NULL; - done by memset */
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cur->backing_fd = -1;
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cur->backing_filesize = hdr32.p_memsz;
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i++;
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cur++;
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}
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{
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Elf32_Phdr hdr32;
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if (read(fd, &hdr32, sizeof(hdr32)) != sizeof(hdr32))
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{
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Debug(0, "Can't read phdrs from '%s'\n", filename);
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goto err;
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}
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cur->p_type = hdr32.p_type ;
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cur->p_flags = hdr32.p_flags ;
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cur->p_offset = hdr32.p_offset;
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cur->p_vaddr = hdr32.p_vaddr ;
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/*cur->p_paddr = hdr32.p_paddr ; always 0 */
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cur->p_filesz = hdr32.p_filesz;
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cur->p_memsz = hdr32.p_memsz ;
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cur->p_align = hdr32.p_align ;
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/* cur->backing_filename = NULL; - done by memset */
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cur->backing_fd = -1;
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cur->backing_filesize = hdr32.p_memsz;
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i++;
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cur++;
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}
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}
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unsigned i = 0;
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coredump_phdr_t *cur = phdrs;
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while (i < size)
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{
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Debug(2, "phdr[%03d]: type:%d", i, cur->p_type);
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if (cur->p_type == PT_NOTE)
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{
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unsigned char *p, *note_end;
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unsigned n_threads;
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Debug(2, "phdr[%03d]: type:%d", i, cur->p_type);
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if (cur->p_type == PT_NOTE)
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{
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unsigned char *p, *note_end;
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unsigned n_threads;
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ui->note_phdr = malloc(cur->p_filesz);
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if (lseek(fd, cur->p_offset, SEEK_SET) != (off_t)cur->p_offset
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|| (uoff_t)read(fd, ui->note_phdr, cur->p_filesz) != cur->p_filesz
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)
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{
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Debug(0, "Can't read PT_NOTE from '%s'\n", filename);
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goto err;
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}
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ui->note_phdr = malloc(cur->p_filesz);
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if (lseek(fd, cur->p_offset, SEEK_SET) != (off_t)cur->p_offset
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|| (uoff_t)read(fd, ui->note_phdr, cur->p_filesz) != cur->p_filesz)
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{
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Debug(0, "Can't read PT_NOTE from '%s'\n", filename);
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goto err;
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}
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note_end = (unsigned char *)ui->note_phdr + cur->p_filesz;
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note_end = (unsigned char *)ui->note_phdr + cur->p_filesz;
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/* Count number of threads */
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n_threads = 0;
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p = ui->note_phdr;
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while (p + sizeof (Elf32_Nhdr) <= note_end)
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{
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Elf32_Nhdr *note_hdr = (Elf32_Nhdr *)p;
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unsigned char *p_next;
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/* Count number of threads */
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n_threads = 0;
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p = ui->note_phdr;
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while (p + sizeof (Elf32_Nhdr) <= note_end)
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{
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Elf32_Nhdr *note_hdr = (Elf32_Nhdr *)p;
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unsigned char *p_next;
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p_next = p + sizeof (Elf32_Nhdr) + ((note_hdr->n_namesz + 3) & ~3L) + note_hdr->n_descsz;
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p_next = p + sizeof (Elf32_Nhdr)
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+ ((note_hdr->n_namesz + 3) & ~3L)
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+ note_hdr->n_descsz;
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if (p_next >= note_end)
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break;
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if (p_next >= note_end)
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break;
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if (note_hdr->n_type == NT_PRSTATUS)
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n_threads++;
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if (note_hdr->n_type == NT_PRSTATUS)
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n_threads++;
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p = p_next;
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}
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p = p_next;
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}
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ui->n_threads = n_threads;
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ui->threads = malloc(sizeof (void *) * n_threads);
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ui->n_threads = n_threads;
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ui->threads = malloc(sizeof (void *) * n_threads);
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n_threads = 0;
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p = ui->note_phdr;
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while (p + sizeof (Elf32_Nhdr) <= note_end)
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{
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Elf32_Nhdr *note_hdr = (Elf32_Nhdr *)p;
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unsigned char *p_next;
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n_threads = 0;
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p = ui->note_phdr;
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while (p + sizeof (Elf32_Nhdr) <= note_end)
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{
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Elf32_Nhdr *note_hdr = (Elf32_Nhdr *)p;
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unsigned char *p_next;
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p_next = p + sizeof (Elf32_Nhdr) + ((note_hdr->n_namesz + 3) & ~3L) + note_hdr->n_descsz;
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p_next = p + sizeof (Elf32_Nhdr)
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+ ((note_hdr->n_namesz + 3) & ~3L)
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+ note_hdr->n_descsz;
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if (p_next >= note_end)
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break;
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if (p_next >= note_end)
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break;
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if (note_hdr->n_type == NT_PRSTATUS)
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ui->threads[n_threads++] = (void*) ((((long)note_hdr + sizeof(*note_hdr) + note_hdr->n_namesz) + 3) & ~3L);
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if (note_hdr->n_type == NT_PRSTATUS)
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ui->threads[n_threads++] = (void*) ((((long)note_hdr
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+ sizeof(*note_hdr) + note_hdr->n_namesz) + 3) & ~3L);
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p = p_next;
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}
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}
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if (cur->p_type == PT_LOAD)
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{
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Debug(2, " ofs:%08llx va:%08llx filesize:%08llx memsize:%08llx flg:%x",
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(unsigned long long) cur->p_offset,
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(unsigned long long) cur->p_vaddr,
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(unsigned long long) cur->p_filesz,
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(unsigned long long) cur->p_memsz,
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cur->p_flags
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);
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if (cur->p_filesz < cur->p_memsz)
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Debug(2, " partial");
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if (cur->p_flags & PF_X)
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Debug(2, " executable");
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}
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Debug(2, "\n");
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i++;
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cur++;
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p = p_next;
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}
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}
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if (cur->p_type == PT_LOAD)
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{
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Debug(2, " ofs:%08llx va:%08llx filesize:%08llx memsize:%08llx flg:%x",
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(unsigned long long) cur->p_offset,
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(unsigned long long) cur->p_vaddr,
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(unsigned long long) cur->p_filesz,
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(unsigned long long) cur->p_memsz,
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cur->p_flags
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);
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if (cur->p_filesz < cur->p_memsz)
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Debug(2, " partial");
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if (cur->p_flags & PF_X)
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Debug(2, " executable");
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}
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Debug(2, "\n");
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i++;
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cur++;
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}
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if (ui->n_threads == 0)
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{
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Debug(0, "No NT_PRSTATUS note found in '%s'\n", filename);
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goto err;
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Debug(0, "No NT_PRSTATUS note found in '%s'\n", filename);
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goto err;
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}
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ui->prstatus = ui->threads[0];
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@ -355,9 +359,9 @@ int _UCD_add_backing_file_at_segment(struct UCD_info *ui, int phdr_no, const cha
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{
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/* This is expected */
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Debug(2, "Note: phdr[%u] is %lld bytes, file is larger: %lld bytes\n",
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phdr_no,
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(unsigned long long)phdr->p_memsz,
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(unsigned long long)phdr->backing_filesize
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phdr_no,
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(unsigned long long)phdr->p_memsz,
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(unsigned long long)phdr->backing_filesize
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);
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}
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//TODO: else loudly complain? Maybe even fail?
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@ -370,31 +374,31 @@ int _UCD_add_backing_file_at_segment(struct UCD_info *ui, int phdr_no, const cha
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if (lseek(ui->coredump_fd, phdr->p_offset, SEEK_SET) != (off_t)phdr->p_offset
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|| (uoff_t)read(ui->coredump_fd, core_buf, phdr->p_filesz) != phdr->p_filesz
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)
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{
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Debug(0, "Error reading from coredump file\n");
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{
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Debug(0, "Error reading from coredump file\n");
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err_read:
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free(core_buf);
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free(file_buf);
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goto err;
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}
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free(core_buf);
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free(file_buf);
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goto err;
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}
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if ((uoff_t)read(fd, file_buf, phdr->p_filesz) != phdr->p_filesz)
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{
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Debug(0, "Error reading from '%s'\n", filename);
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goto err_read;
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}
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{
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Debug(0, "Error reading from '%s'\n", filename);
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goto err_read;
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}
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int r = memcmp(core_buf, file_buf, phdr->p_filesz);
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free(core_buf);
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free(file_buf);
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if (r != 0)
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{
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Debug(1, "Note: phdr[%u] first %lld bytes in core dump and in file do not match\n",
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phdr_no, (unsigned long long)phdr->p_filesz
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);
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} else {
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Debug(1, "Note: phdr[%u] first %lld bytes in core dump and in file match\n",
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phdr_no, (unsigned long long)phdr->p_filesz
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);
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}
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{
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Debug(1, "Note: phdr[%u] first %lld bytes in core dump and in file do not match\n",
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phdr_no, (unsigned long long)phdr->p_filesz
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);
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} else {
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Debug(1, "Note: phdr[%u] first %lld bytes in core dump and in file match\n",
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phdr_no, (unsigned long long)phdr->p_filesz
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);
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}
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}
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/* Success */
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@ -412,8 +416,8 @@ int _UCD_add_backing_file_at_segment(struct UCD_info *ui, int phdr_no, const cha
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}
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int _UCD_add_backing_file_at_vaddr(struct UCD_info *ui,
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unsigned long vaddr,
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const char *filename)
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unsigned long vaddr,
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const char *filename)
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{
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unsigned i;
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for (i = 0; i < ui->phdrs_count; i++)
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