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(unexec): Add conditional for SOLARIS_POWERPC.

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This commit is contained in:
Richard M. Stallman 1996-04-25 18:02:45 +00:00
parent 568aa5850b
commit ea083293b6
1 changed files with 37 additions and 0 deletions
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37
src/unexelf.c
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@ -437,6 +437,29 @@ extern void fatal (char *, ...);
/* Get the address of a particular section or program header entry,
* accounting for the size of the entries.
*/
/*
On PPC Reference Platform running Solaris 2.5.1
the plt section is also of type NOBI like the bss section.
(not really stored) and therefore sections after the bss
section start at the plt offset. The plt section is always
the one just before the bss section.
Thus, we modify the test from
if (NEW_SECTION_H (nn).sh_offset >= new_data2_offset)
to
if (NEW_SECTION_H (nn).sh_offset >=
OLD_SECTION_H (old_bss_index-1).sh_offset)
This is just a hack. We should put the new data section
before the .plt section.
And we should not have this routine at all but use
the libelf library to read the old file and create the new
file.
The changed code is minimal and depends on prep set in m/prep.h
Erik Deumens
Quantum Theory Project
University of Florida
deumens@qtp.ufl.edu
Apr 23, 1996
*/
#define OLD_SECTION_H(n) \
(*(Elf32_Shdr *) ((byte *) old_section_h + old_file_h->e_shentsize * (n)))
@ -731,8 +754,22 @@ unexec (new_name, old_name, data_start, bss_start, entry_address)
{
/* Any section that was original placed AFTER the bss
section should now be off by NEW_DATA2_SIZE. */
#ifdef SOLARIS_POWERPC
/* On PPC Reference Platform running Solaris 2.5.1
the plt section is also of type NOBI like the bss section.
(not really stored) and therefore sections after the bss
section start at the plt offset. The plt section is always
the one just before the bss section.
It would be better to put the new data section before
the .plt section, or use libelf instead.
Erik Deumens, deumens@qtp.ufl.edu. */
if (NEW_SECTION_H (nn).sh_offset
>= OLD_SECTION_H (old_bss_index-1).sh_offset)
NEW_SECTION_H (nn).sh_offset += new_data2_size;
#else
if (NEW_SECTION_H (nn).sh_offset >= new_data2_offset)
NEW_SECTION_H (nn).sh_offset += new_data2_size;
#endif
/* Any section that was originally placed after the section
header table should now be off by the size of one section
header table entry. */