e549317e15
According to the System V Application Binary Interface specification [1]
the sections holding a symbol table, SHT_SYMTAB and SHT_DYNSYM, have to
have sh_info set to "One greater than the symbol table index of the last
local symbol (binding STB_LOCAL)". Current code converting PE images to
ELF files does not do that and readelf complains in following way:
...
Section Headers:
[Nr] Name Type Addr Off Size ES Flg Lk Inf Al
[ 0] NULL 00000000 000000 000000 00 0 0 0
[ 1] .text PROGBITS 00000000 000034 0014d4 00 AX 0 0 4
[ 2] .data PROGBITS 00000000 001508 000040 00 WA 0 0 32
[ 3] .rdata PROGBITS 00000000 001548 0006b8 00 A 0 0 4
[ 4] .module_license PROGBITS 00000000 001c00 000010 00 0 0 4
[ 5] .bss NOBITS 00000000 000000 000008 00 WA 0 0 4
[ 6] .moddeps PROGBITS 00000000 001c10 000010 00 0 0 4
[ 7] .modname PROGBITS 00000000 001c20 000008 00 0 0 4
[ 8] .rel.text REL 00000000 001c28 0008c8 08 11 1 4
[ 9] .rel.data REL 00000000 0024f0 000040 08 11 2 4
[10] .rel.rdata REL 00000000 002530 000070 08 11 3 4
[11] .symtab SYMTAB 00000000 0025a0 0001d0 10 12 0 4
[12] .strtab STRTAB 00000000 002770 000237 00 0 0 1
...
Symbol table '.symtab' contains 29 entries:
Num: Value Size Type Bind Vis Ndx Name
0: 00000000 0 NOTYPE LOCAL DEFAULT UND
readelf: Warning: local symbol 0 found at index >= .symtab's sh_info value of 0
1: 0000144a 0 FUNC LOCAL DEFAULT 1 grub_mod_init
readelf: Warning: local symbol 1 found at index >= .symtab's sh_info value of 0
2: 000014aa 0 FUNC LOCAL DEFAULT 1 grub_mod_fini
readelf: Warning: local symbol 2 found at index >= .symtab's sh_info value of 0
3: 00000000 0 SECTION LOCAL DEFAULT 1 .text
readelf: Warning: local symbol 3 found at index >= .symtab's sh_info value of 0
4: 00000000 0 SECTION LOCAL DEFAULT 2 .data
readelf: Warning: local symbol 4 found at index >= .symtab's sh_info value of 0
5: 00000000 0 SECTION LOCAL DEFAULT 5 .bss
readelf: Warning: local symbol 5 found at index >= .symtab's sh_info value of 0
6: 00000000 0 SECTION LOCAL DEFAULT 3 .rdata
readelf: Warning: local symbol 6 found at index >= .symtab's sh_info value of 0
7: 00000000 0 NOTYPE GLOBAL DEFAULT UND grub_dma_get_phys
8: 00000000 0 NOTYPE GLOBAL DEFAULT UND grub_cs5536_write_msr
9: 00000000 0 NOTYPE GLOBAL DEFAULT UND grub_dma_free
...
Let's fix it...
[1] https://www.sco.com/developers/gabi/2012-12-31/contents.html
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Reviewed-by: Ross Philipson <ross.philipson@oracle.com>
Reviewed-by: Alec Brown <alec.r.brown@oracle.com>
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. See the file MAINTAINERS for information about the GRUB maintainers, etc. If you found a security vulnerability in the GRUB please check the SECURITY file to get more information how to properly report this kind of bugs to the maintainers. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'