On Fri, May 30, 2014 at 9:29 AM, enjoy mindful <enjoymind...@gmail.com> wrote: > Hi, all > I build linux-3.12.6 uml with default configure. > > tar -jxf linux-3.12.6.tar.bz2 > cd linux-3.12.6 > make ARCH=um defconfig > make ARCH=um linux > > I'm confused about the exception table of the uml kernel. > > > $ objdump --full-contents --section=__ex_table linux > > linux: file format elf32-i386 > > Contents of section __ex_table: > 82a5048 3e6fdcff bcbaf6ff 396fdcff b4baf6ff >o......9o...... > 82a5058 336fdcff acbaf6ff 306fdcff bfbaf6ff 3o......0o...... > 82a5068 2b6fdcff 9cbaf6ff 286fdcff afbaf6ff +o......(o...... > 82a5078 236fdcff 8cbaf6ff 206fdcff 9fbaf6ff #o...... o...... > 82a5088 1b6fdcff 7cbaf6ff 186fdcff 8fbaf6ff .o..|....o...... > 82a5098 136fdcff 6cbaf6ff 106fdcff 7fbaf6ff .o..l....o...... > 82a50a8 0b6fdcff 5cbaf6ff 086fdcff 6fbaf6ff .o..\....o..o... > 82a50b8 036fdcff 4cbaf6ff 006fdcff 5fbaf6ff .o..L....o.._... > 82a50c8 fb6edcff 3cbaf6ff f86edcff 4fbaf6ff .n..<....n..O... > 82a50d8 f36edcff 2cbaf6ff f06edcff 3fbaf6ff .n..,....n..?... > 82a50e8 eb6edcff 1cbaf6ff e86edcff 2fbaf6ff .n.......n../... > 82a50f8 e36edcff 0cbaf6ff e06edcff 1fbaf6ff .n.......n...... > 82a5108 db6edcff fcb9f6ff d86edcff 0fbaf6ff .n.......n...... > 82a5118 d36edcff ecb9f6ff d06edcff ffb9f6ff .n.......n...... > 82a5128 cb6edcff dcb9f6ff c86edcff efb9f6ff .n.......n...... > 82a5138 c36edcff ccb9f6ff c06edcff dfb9f6ff .n.......n...... > 82a5148 bb6edcff bcb9f6ff b86edcff cfb9f6ff .n.......n...... > 82a5158 ce6edcff acb9f6ff cc6edcff bfb9f6ff .n.......n...... > 82a5168 cf6edcff 9cb9f6ff c96edcff afb9f6ff .n.......n...... > > Let pick the first instruction location '3e6fdcff' (in human readable > is 0xffdc6f3e). My question is how to find which function in UML > kernel has an instruction in location 0xffdc6f3e?
Not sure whether I understand your question correctly. Isn't addr2line what you need? > > In i386 platform, the kernel address greater than the __PAGE_OFFSET > (0xC0000000). However, as skas0 sperate the uml kernel and user > process address space, it dose work by search address greater than the > __PAGE_OFFSET for UML. > > thanks > > ------------------------------------------------------------------------------ > Time is money. Stop wasting it! Get your web API in 5 minutes. > www.restlet.com/download > http://p.sf.net/sfu/restlet > _______________________________________________ > User-mode-linux-user mailing list > User-mode-linux-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user -- Thanks, //richard ------------------------------------------------------------------------------ Time is money. Stop wasting it! Get your web API in 5 minutes. www.restlet.com/download http://p.sf.net/sfu/restlet _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
