[Xen-changelog] [xen-unstable] dump-core: update the documentation

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1232023248 0
# Node ID 04f913ab2049bd0d8f13cdd72a487376d3909f87
# Parent  e98032a016d62c4ee09bb59ab9e0987c2563804a
dump-core: update the documentation

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
 docs/misc/dump-core-format.txt |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diff -r e98032a016d6 -r 04f913ab2049 docs/misc/dump-core-format.txt
--- a/docs/misc/dump-core-format.txt    Thu Jan 15 12:39:59 2009 +0000
+++ b/docs/misc/dump-core-format.txt    Thu Jan 15 12:40:48 2009 +0000
@@ -30,8 +30,13 @@ The elf header members are set as follow
         e_ident[EI_OSABI] = ELFOSABI_SYSV = 0
         e_type = ET_CORE = 4
 ELFCLASS64 is always used independent of architecture.
-e_ident[EI_DATA] and e_flags are set according to the dumping system's
-architecture. Other members are set as usual.
+e_ident[EI_DATA] is set as follows
+  For x86 PV domain case, it is set according to the guest configuration
+  (i.e. if guest is 32bit it is set to EM_386 even when the dom0 is 64 bit.)
+  For other domain case (x86 HVM domain case and ia64 domain case),
+  it is set according to the dumping system's architecture.
+e_flags is set according to the dumping system's architecture.
+Other members are set as usual.
 
 Sections
 --------
@@ -241,3 +246,7 @@ Currently only (major, minor) = (0, 1) i
   The format version isn't bumped because analysis tools can distinguish it.
 - .xen_ia64_mapped_regs section was made only for ia64 PV domain.
   In case of IA64 HVM domain, this section doesn't exist.
+- elf header e_ident[EI_DATA]
+  On x86 PV domain case, it is set according to the guest configuration.
+  I.e. 32-on-64 case, the file will be set EM_386 instead of EM_X86_64.
+  This is the same as 32-on-32 case, so there is no impact on analysis tools.

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