mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-11-25 00:27:39 +01:00
Whitespace cleanup
This commit is contained in:
Arun Sharma
parent
0c0ea23cf2
commit
0628a9872c
1 changed files with 136 additions and 132 deletions
|
|
@ -122,15 +122,15 @@ _UCD_create(const char *filename)
|
|||
if (_64bits && sizeof(elf_header64.e_entry) > sizeof(off_t))
|
||||
{
|
||||
Debug(0, "Can't process '%s': 64-bit file "
|
||||
"while only %ld bits are supported",
|
||||
filename, 8L * sizeof(off_t));
|
||||
"while only %ld bits are supported",
|
||||
filename, 8L * sizeof(off_t));
|
||||
goto err;
|
||||
}
|
||||
|
||||
/* paranoia check */
|
||||
if (_64bits
|
||||
? 0 /* todo: (elf_header64.e_ehsize != NN || elf_header64.e_phentsize != NN) */
|
||||
: (elf_header32.e_ehsize != 52 || elf_header32.e_phentsize != 32)
|
||||
? 0 /* todo: (elf_header64.e_ehsize != NN || elf_header64.e_phentsize != NN) */
|
||||
: (elf_header32.e_ehsize != 52 || elf_header32.e_phentsize != 32)
|
||||
)
|
||||
{
|
||||
Debug(0, "'%s' has wrong e_ehsize or e_phentsize\n", filename);
|
||||
|
|
@ -150,139 +150,143 @@ _UCD_create(const char *filename)
|
|||
coredump_phdr_t *cur = phdrs;
|
||||
unsigned i = 0;
|
||||
while (i < size)
|
||||
{
|
||||
{
|
||||
Elf64_Phdr hdr64;
|
||||
if (read(fd, &hdr64, sizeof(hdr64)) != sizeof(hdr64))
|
||||
{
|
||||
Debug(0, "Can't read phdrs from '%s'\n", filename);
|
||||
goto err;
|
||||
}
|
||||
cur->p_type = hdr64.p_type ;
|
||||
cur->p_flags = hdr64.p_flags ;
|
||||
cur->p_offset = hdr64.p_offset;
|
||||
cur->p_vaddr = hdr64.p_vaddr ;
|
||||
/*cur->p_paddr = hdr32.p_paddr ; always 0 */
|
||||
if (read(fd, &hdr64, sizeof(hdr64)) != sizeof(hdr64))
|
||||
{
|
||||
Debug(0, "Can't read phdrs from '%s'\n", filename);
|
||||
goto err;
|
||||
}
|
||||
cur->p_type = hdr64.p_type ;
|
||||
cur->p_flags = hdr64.p_flags ;
|
||||
cur->p_offset = hdr64.p_offset;
|
||||
cur->p_vaddr = hdr64.p_vaddr ;
|
||||
/*cur->p_paddr = hdr32.p_paddr ; always 0 */
|
||||
//TODO: check that and abort if it isn't?
|
||||
cur->p_filesz = hdr64.p_filesz;
|
||||
cur->p_memsz = hdr64.p_memsz ;
|
||||
cur->p_align = hdr64.p_align ;
|
||||
/* cur->backing_filename = NULL; - done by memset */
|
||||
cur->backing_fd = -1;
|
||||
cur->backing_filesize = hdr64.p_filesz;
|
||||
i++;
|
||||
cur++;
|
||||
}
|
||||
cur->p_filesz = hdr64.p_filesz;
|
||||
cur->p_memsz = hdr64.p_memsz ;
|
||||
cur->p_align = hdr64.p_align ;
|
||||
/* cur->backing_filename = NULL; - done by memset */
|
||||
cur->backing_fd = -1;
|
||||
cur->backing_filesize = hdr64.p_filesz;
|
||||
i++;
|
||||
cur++;
|
||||
}
|
||||
} else {
|
||||
coredump_phdr_t *cur = phdrs;
|
||||
unsigned i = 0;
|
||||
while (i < size)
|
||||
{
|
||||
Elf32_Phdr hdr32;
|
||||
if (read(fd, &hdr32, sizeof(hdr32)) != sizeof(hdr32))
|
||||
{
|
||||
Debug(0, "Can't read phdrs from '%s'\n", filename);
|
||||
goto err;
|
||||
}
|
||||
cur->p_type = hdr32.p_type ;
|
||||
cur->p_flags = hdr32.p_flags ;
|
||||
cur->p_offset = hdr32.p_offset;
|
||||
cur->p_vaddr = hdr32.p_vaddr ;
|
||||
/*cur->p_paddr = hdr32.p_paddr ; always 0 */
|
||||
cur->p_filesz = hdr32.p_filesz;
|
||||
cur->p_memsz = hdr32.p_memsz ;
|
||||
cur->p_align = hdr32.p_align ;
|
||||
/* cur->backing_filename = NULL; - done by memset */
|
||||
cur->backing_fd = -1;
|
||||
cur->backing_filesize = hdr32.p_memsz;
|
||||
i++;
|
||||
cur++;
|
||||
}
|
||||
{
|
||||
Elf32_Phdr hdr32;
|
||||
if (read(fd, &hdr32, sizeof(hdr32)) != sizeof(hdr32))
|
||||
{
|
||||
Debug(0, "Can't read phdrs from '%s'\n", filename);
|
||||
goto err;
|
||||
}
|
||||
cur->p_type = hdr32.p_type ;
|
||||
cur->p_flags = hdr32.p_flags ;
|
||||
cur->p_offset = hdr32.p_offset;
|
||||
cur->p_vaddr = hdr32.p_vaddr ;
|
||||
/*cur->p_paddr = hdr32.p_paddr ; always 0 */
|
||||
cur->p_filesz = hdr32.p_filesz;
|
||||
cur->p_memsz = hdr32.p_memsz ;
|
||||
cur->p_align = hdr32.p_align ;
|
||||
/* cur->backing_filename = NULL; - done by memset */
|
||||
cur->backing_fd = -1;
|
||||
cur->backing_filesize = hdr32.p_memsz;
|
||||
i++;
|
||||
cur++;
|
||||
}
|
||||
}
|
||||
|
||||
unsigned i = 0;
|
||||
coredump_phdr_t *cur = phdrs;
|
||||
while (i < size)
|
||||
{
|
||||
Debug(2, "phdr[%03d]: type:%d", i, cur->p_type);
|
||||
if (cur->p_type == PT_NOTE)
|
||||
{
|
||||
unsigned char *p, *note_end;
|
||||
unsigned n_threads;
|
||||
Debug(2, "phdr[%03d]: type:%d", i, cur->p_type);
|
||||
if (cur->p_type == PT_NOTE)
|
||||
{
|
||||
unsigned char *p, *note_end;
|
||||
unsigned n_threads;
|
||||
|
||||
ui->note_phdr = malloc(cur->p_filesz);
|
||||
if (lseek(fd, cur->p_offset, SEEK_SET) != (off_t)cur->p_offset
|
||||
|| (uoff_t)read(fd, ui->note_phdr, cur->p_filesz) != cur->p_filesz
|
||||
)
|
||||
{
|
||||
Debug(0, "Can't read PT_NOTE from '%s'\n", filename);
|
||||
goto err;
|
||||
}
|
||||
ui->note_phdr = malloc(cur->p_filesz);
|
||||
if (lseek(fd, cur->p_offset, SEEK_SET) != (off_t)cur->p_offset
|
||||
|| (uoff_t)read(fd, ui->note_phdr, cur->p_filesz) != cur->p_filesz)
|
||||
{
|
||||
Debug(0, "Can't read PT_NOTE from '%s'\n", filename);
|
||||
goto err;
|
||||
}
|
||||
|
||||
note_end = (unsigned char *)ui->note_phdr + cur->p_filesz;
|
||||
note_end = (unsigned char *)ui->note_phdr + cur->p_filesz;
|
||||
|
||||
/* Count number of threads */
|
||||
n_threads = 0;
|
||||
p = ui->note_phdr;
|
||||
while (p + sizeof (Elf32_Nhdr) <= note_end)
|
||||
{
|
||||
Elf32_Nhdr *note_hdr = (Elf32_Nhdr *)p;
|
||||
unsigned char *p_next;
|
||||
/* Count number of threads */
|
||||
n_threads = 0;
|
||||
p = ui->note_phdr;
|
||||
while (p + sizeof (Elf32_Nhdr) <= note_end)
|
||||
{
|
||||
Elf32_Nhdr *note_hdr = (Elf32_Nhdr *)p;
|
||||
unsigned char *p_next;
|
||||
|
||||
p_next = p + sizeof (Elf32_Nhdr) + ((note_hdr->n_namesz + 3) & ~3L) + note_hdr->n_descsz;
|
||||
p_next = p + sizeof (Elf32_Nhdr)
|
||||
+ ((note_hdr->n_namesz + 3) & ~3L)
|
||||
+ note_hdr->n_descsz;
|
||||
|
||||
if (p_next >= note_end)
|
||||
break;
|
||||
if (p_next >= note_end)
|
||||
break;
|
||||
|
||||
if (note_hdr->n_type == NT_PRSTATUS)
|
||||
n_threads++;
|
||||
if (note_hdr->n_type == NT_PRSTATUS)
|
||||
n_threads++;
|
||||
|
||||
p = p_next;
|
||||
}
|
||||
p = p_next;
|
||||
}
|
||||
|
||||
ui->n_threads = n_threads;
|
||||
ui->threads = malloc(sizeof (void *) * n_threads);
|
||||
ui->n_threads = n_threads;
|
||||
ui->threads = malloc(sizeof (void *) * n_threads);
|
||||
|
||||
n_threads = 0;
|
||||
p = ui->note_phdr;
|
||||
while (p + sizeof (Elf32_Nhdr) <= note_end)
|
||||
{
|
||||
Elf32_Nhdr *note_hdr = (Elf32_Nhdr *)p;
|
||||
unsigned char *p_next;
|
||||
n_threads = 0;
|
||||
p = ui->note_phdr;
|
||||
while (p + sizeof (Elf32_Nhdr) <= note_end)
|
||||
{
|
||||
Elf32_Nhdr *note_hdr = (Elf32_Nhdr *)p;
|
||||
unsigned char *p_next;
|
||||
|
||||
p_next = p + sizeof (Elf32_Nhdr) + ((note_hdr->n_namesz + 3) & ~3L) + note_hdr->n_descsz;
|
||||
p_next = p + sizeof (Elf32_Nhdr)
|
||||
+ ((note_hdr->n_namesz + 3) & ~3L)
|
||||
+ note_hdr->n_descsz;
|
||||
|
||||
if (p_next >= note_end)
|
||||
break;
|
||||
if (p_next >= note_end)
|
||||
break;
|
||||
|
||||
if (note_hdr->n_type == NT_PRSTATUS)
|
||||
ui->threads[n_threads++] = (void*) ((((long)note_hdr + sizeof(*note_hdr) + note_hdr->n_namesz) + 3) & ~3L);
|
||||
if (note_hdr->n_type == NT_PRSTATUS)
|
||||
ui->threads[n_threads++] = (void*) ((((long)note_hdr
|
||||
+ sizeof(*note_hdr) + note_hdr->n_namesz) + 3) & ~3L);
|
||||
|
||||
p = p_next;
|
||||
}
|
||||
}
|
||||
if (cur->p_type == PT_LOAD)
|
||||
{
|
||||
Debug(2, " ofs:%08llx va:%08llx filesize:%08llx memsize:%08llx flg:%x",
|
||||
(unsigned long long) cur->p_offset,
|
||||
(unsigned long long) cur->p_vaddr,
|
||||
(unsigned long long) cur->p_filesz,
|
||||
(unsigned long long) cur->p_memsz,
|
||||
cur->p_flags
|
||||
);
|
||||
if (cur->p_filesz < cur->p_memsz)
|
||||
Debug(2, " partial");
|
||||
if (cur->p_flags & PF_X)
|
||||
Debug(2, " executable");
|
||||
}
|
||||
Debug(2, "\n");
|
||||
i++;
|
||||
cur++;
|
||||
p = p_next;
|
||||
}
|
||||
}
|
||||
if (cur->p_type == PT_LOAD)
|
||||
{
|
||||
Debug(2, " ofs:%08llx va:%08llx filesize:%08llx memsize:%08llx flg:%x",
|
||||
(unsigned long long) cur->p_offset,
|
||||
(unsigned long long) cur->p_vaddr,
|
||||
(unsigned long long) cur->p_filesz,
|
||||
(unsigned long long) cur->p_memsz,
|
||||
cur->p_flags
|
||||
);
|
||||
if (cur->p_filesz < cur->p_memsz)
|
||||
Debug(2, " partial");
|
||||
if (cur->p_flags & PF_X)
|
||||
Debug(2, " executable");
|
||||
}
|
||||
Debug(2, "\n");
|
||||
i++;
|
||||
cur++;
|
||||
}
|
||||
|
||||
if (ui->n_threads == 0)
|
||||
{
|
||||
Debug(0, "No NT_PRSTATUS note found in '%s'\n", filename);
|
||||
goto err;
|
||||
Debug(0, "No NT_PRSTATUS note found in '%s'\n", filename);
|
||||
goto err;
|
||||
}
|
||||
|
||||
ui->prstatus = ui->threads[0];
|
||||
|
|
@ -355,9 +359,9 @@ int _UCD_add_backing_file_at_segment(struct UCD_info *ui, int phdr_no, const cha
|
|||
{
|
||||
/* This is expected */
|
||||
Debug(2, "Note: phdr[%u] is %lld bytes, file is larger: %lld bytes\n",
|
||||
phdr_no,
|
||||
(unsigned long long)phdr->p_memsz,
|
||||
(unsigned long long)phdr->backing_filesize
|
||||
phdr_no,
|
||||
(unsigned long long)phdr->p_memsz,
|
||||
(unsigned long long)phdr->backing_filesize
|
||||
);
|
||||
}
|
||||
//TODO: else loudly complain? Maybe even fail?
|
||||
|
|
@ -370,31 +374,31 @@ int _UCD_add_backing_file_at_segment(struct UCD_info *ui, int phdr_no, const cha
|
|||
if (lseek(ui->coredump_fd, phdr->p_offset, SEEK_SET) != (off_t)phdr->p_offset
|
||||
|| (uoff_t)read(ui->coredump_fd, core_buf, phdr->p_filesz) != phdr->p_filesz
|
||||
)
|
||||
{
|
||||
Debug(0, "Error reading from coredump file\n");
|
||||
{
|
||||
Debug(0, "Error reading from coredump file\n");
|
||||
err_read:
|
||||
free(core_buf);
|
||||
free(file_buf);
|
||||
goto err;
|
||||
}
|
||||
free(core_buf);
|
||||
free(file_buf);
|
||||
goto err;
|
||||
}
|
||||
if ((uoff_t)read(fd, file_buf, phdr->p_filesz) != phdr->p_filesz)
|
||||
{
|
||||
Debug(0, "Error reading from '%s'\n", filename);
|
||||
goto err_read;
|
||||
}
|
||||
{
|
||||
Debug(0, "Error reading from '%s'\n", filename);
|
||||
goto err_read;
|
||||
}
|
||||
int r = memcmp(core_buf, file_buf, phdr->p_filesz);
|
||||
free(core_buf);
|
||||
free(file_buf);
|
||||
if (r != 0)
|
||||
{
|
||||
Debug(1, "Note: phdr[%u] first %lld bytes in core dump and in file do not match\n",
|
||||
phdr_no, (unsigned long long)phdr->p_filesz
|
||||
);
|
||||
} else {
|
||||
Debug(1, "Note: phdr[%u] first %lld bytes in core dump and in file match\n",
|
||||
phdr_no, (unsigned long long)phdr->p_filesz
|
||||
);
|
||||
}
|
||||
{
|
||||
Debug(1, "Note: phdr[%u] first %lld bytes in core dump and in file do not match\n",
|
||||
phdr_no, (unsigned long long)phdr->p_filesz
|
||||
);
|
||||
} else {
|
||||
Debug(1, "Note: phdr[%u] first %lld bytes in core dump and in file match\n",
|
||||
phdr_no, (unsigned long long)phdr->p_filesz
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
/* Success */
|
||||
|
|
@ -412,8 +416,8 @@ int _UCD_add_backing_file_at_segment(struct UCD_info *ui, int phdr_no, const cha
|
|||
}
|
||||
|
||||
int _UCD_add_backing_file_at_vaddr(struct UCD_info *ui,
|
||||
unsigned long vaddr,
|
||||
const char *filename)
|
||||
unsigned long vaddr,
|
||||
const char *filename)
|
||||
{
|
||||
unsigned i;
|
||||
for (i = 0; i < ui->phdrs_count; i++)
|
||||
|
|
|
|||
Loading…
Reference in a new issue