From ea083293b6dcc9024004078ed24da3e23fb7114e Mon Sep 17 00:00:00 2001 From: "Richard M. Stallman" Date: Thu, 25 Apr 1996 18:02:45 +0000 Subject: [PATCH] (unexec): Add conditional for SOLARIS_POWERPC. --- src/unexelf.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/src/unexelf.c b/src/unexelf.c index 1743e524c46..a63ecf0dbb6 100644 --- a/src/unexelf.c +++ b/src/unexelf.c @@ -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. */ -- 2.39.2