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.rodata section defined as Writeable as well as Text program header
- From: Alex Kogan <KOGAN at il dot ibm dot com>
- To: binutils at sources dot redhat dot com
- Cc: Yaakov Yaari <YAARI at il dot ibm dot com>
- Date: Wed, 28 Dec 2005 16:04:51 +0200
- Subject: .rodata section defined as Writeable as well as Text program header
Hello, all.
Another animality I see when compiling current (2005-12-27) glibc sources
by gcc 4.1 on RHEL4/PowerPC machine: in libm.so.6 library, .rodata is
defined as Writeable, and so Text program header does.
Section headers:
[12] .text PROGBITS 0000a390 00a390 0361c0 00 AX 0
0 16
[13] .rela.text RELA 00000000 082f64 012264 0c 48
12 4
[14] .fini PROGBITS 00040550 040550 000038 00 AX 0
0 4
[15] .rela.fini RELA 00000000 0951c8 000024 0c 48
14 4
[16] .rodata PROGBITS 00040588 040588 037508 00 WA 0
0 8
[17] .rela.rodata RELA 00000000 0951ec 000ce4 0c 48
16 4
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
PHDR 0x000034 0x00000034 0x00000034 0x00100 0x00100 R E 0x4
INTERP 0x077a90 0x00077a90 0x00077a90 0x00024 0x00024 R 0x4
[Requesting program interpreter: /opt/biarch/20050923/lib/ld.so.1]
LOAD 0x000000 0x00000000 0x00000000 0x77ab8 0x77ab8 RWE 0x10000
...
Section to Segment mapping:
Segment Sections...
00
01 .interp
02 .note.ABI-tag .hash .dynsym .dynstr .gnu.version .gnu.version_d
.gnu.version_r .rela.dyn .rela.plt .init .text .fini .rodata .interp
.eh_frame
...
The configuration I use:
../glibc-2005-12-27/configure --prefix=/opt/biarch/20050923
--build=powerpc-unknwon-linux-gnu
--with-headers=/opt/biarch/20050923/include
--with-binutils=/opt/biarch/20050923/bin --libdir=/opt/biarch/20050923/lib
--enable-add-ons=linuxthreads --enable-add-ons=nptl --with-selinux
Any ideas why it happens?
Thanks in advance,
_______________________________
Alex Kogan
IBM Research Labs