Messages in this thread |  | | Date | Fri, 2 Aug 1996 19:06:35 -0500 (CDT) | From | "Michael J. Greger" <> | Subject | Problem doing a read... |
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Hello,
Under 2.0.4, I have a program that gives the following under /proc/pid/maps:
0x8048000 0x8054000 r-xp 0x0 16:1 368915 0x8054000 0x8055000 rw-p 0xb000 16:1 368915 0x8055000 0x8069000 rwxp 0x0 0:0 0 0x40000000 0x40005000 rwxp 0x0 16:1 16473 0x40005000 0x40006000 rw-p 0x4000 16:1 16473 0x40006000 0x40009000 rw-p 0x0 0:0 0 **** 0x40009000 0x40082000 r-xp 0x0 16:1 16419 0x40082000 0x40088000 rw-p 0x78000 16:1 16419 0x40088000 0x400ba000 rw-p 0x0 0:0 0 0xbfffc000 0xc0000000 rwxp 0xffffd000 0:0 0
I'm tring to read the segment of memory marked above with the ***'s. When I read to about 0x40008000, I get a segfault. According to the protection bits, I should have read access. Well, why do I get a segfault??
BTW, the inode 16473 corresponds to the ld-linux.so file. If I'm reading the maps file correctly, this segment should be something like uninitialized data since it is writeable and not mapped to a file on the HD... Is this correct???
Thanks, Michael
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