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(copy_data_segment): Also copy __gcc_except_tab and __objc_* sections.

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(unrelocate) [_LP64]: Set relocation base to address of data segment.
This commit is contained in:
YAMAMOTO Mitsuharu 2007-11-24 08:51:24 +00:00
parent afb57efd40
commit b2411edf93
2 changed files with 29 additions and 6 deletions
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6
src/ChangeLog
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@ -1,3 +1,9 @@
2007-11-24 YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
* unexmacosx.c (copy_data_segment): Also copy __gcc_except_tab and
__objc_* sections.
(unrelocate) [_LP64]: Set relocation base to address of data segment.
2007-11-23 Andreas Schwab <schwab@suse.de>
* editfns.c (Fformat): Handle %c specially since it requires the

29
src/unexmacosx.c
View file

@ -819,7 +819,9 @@ copy_data_segment (struct load_command *lc)
|| strncmp (sectp->sectname, "__la_sym_ptr2", 16) == 0
|| strncmp (sectp->sectname, "__dyld", 16) == 0
|| strncmp (sectp->sectname, "__const", 16) == 0
|| strncmp (sectp->sectname, "__cfstring", 16) == 0)
|| strncmp (sectp->sectname, "__cfstring", 16) == 0
|| strncmp (sectp->sectname, "__gcc_except_tab", 16) == 0
|| strncmp (sectp->sectname, "__objc_", 7) == 0)
{
if (!unexec_copy (sectp->offset, old_file_offset, sectp->size))
unexec_error ("cannot copy section %s", sectp->sectname);
@ -904,6 +906,20 @@ unrelocate (const char *name, off_t reloff, int nrel)
struct relocation_info reloc_info;
struct scattered_relocation_info *sc_reloc_info
= (struct scattered_relocation_info *) &reloc_info;
vm_address_t reloc_base, location;
#ifdef _LP64
#if __ppc64__
reloc_base = (data_segment_scp->vmaddr >= 0x100000000
? data_segment_scp->vmaddr : 0);
#else
/* First writable segment address. */
reloc_base = data_segment_scp->vmaddr;
#endif
#else
/* First segment address in the file (unless MH_SPLIT_SEGS set). */
reloc_base = 0;
#endif
for (unreloc_count = 0, i = 0; i < nrel; i++)
{
@ -917,14 +933,15 @@ unrelocate (const char *name, off_t reloff, int nrel)
switch (reloc_info.r_type)
{
case GENERIC_RELOC_VANILLA:
if (reloc_info.r_address >= data_segment_scp->vmaddr
&& reloc_info.r_address < (data_segment_scp->vmaddr
+ data_segment_scp->vmsize))
location = reloc_base + reloc_info.r_address;
if (location >= data_segment_scp->vmaddr
&& location < (data_segment_scp->vmaddr
+ data_segment_scp->vmsize))
{
off_t src_off = data_segment_old_fileoff
+ reloc_info.r_address - data_segment_scp->vmaddr;
+ (location - data_segment_scp->vmaddr);
off_t dst_off = data_segment_scp->fileoff
+ reloc_info.r_address - data_segment_scp->vmaddr;
+ (location - data_segment_scp->vmaddr);
if (!unexec_copy (dst_off, src_off, 1 << reloc_info.r_length))
unexec_error ("unrelocate: %s:%d cannot copy original value",