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Fix for the changes made to the kernel module structure introduced by

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this kernel commit for Linux 4.5 and later kernels:

  commit 7523e4dc5057e157212b4741abd6256e03404cf1
  module: use a structure to encapsulate layout.

Without the patch, the crash session fails during initialization
with the error message: "crash: invalid structure member offset:
module_init_text_size".
(sebott@linux.vnet.ibm.com)
This commit is contained in:
Dave Anderson 2016-01-20 09:56:36 -05:00
parent 63f7707d2b
commit 6f1f78e334
1 changed files with 39 additions and 10 deletions
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49
kernel.c
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@ -3291,16 +3291,45 @@ module_init(void)
MEMBER_OFFSET_INIT(module_gpl_syms, "module", "gpl_syms");
MEMBER_OFFSET_INIT(module_num_gpl_syms, "module",
"num_gpl_syms");
MEMBER_OFFSET_INIT(module_module_core, "module",
"module_core");
MEMBER_OFFSET_INIT(module_core_size, "module",
"core_size");
MEMBER_OFFSET_INIT(module_core_text_size, "module",
"core_text_size");
MEMBER_OFFSET_INIT(module_module_init, "module", "module_init");
MEMBER_OFFSET_INIT(module_init_size, "module", "init_size");
MEMBER_OFFSET_INIT(module_init_text_size, "module",
"init_text_size");
if (MEMBER_EXISTS("module", "module_core")) {
MEMBER_OFFSET_INIT(module_core_size, "module",
"core_size");
MEMBER_OFFSET_INIT(module_init_size, "module",
"init_size");
MEMBER_OFFSET_INIT(module_core_text_size, "module",
"core_text_size");
MEMBER_OFFSET_INIT(module_init_text_size, "module",
"init_text_size");
MEMBER_OFFSET_INIT(module_module_core, "module",
"module_core");
MEMBER_OFFSET_INIT(module_module_init, "module",
"module_init");
} else {
ASSIGN_OFFSET(module_core_size) =
MEMBER_OFFSET("module", "core_layout") +
MEMBER_OFFSET("module_layout", "size");
ASSIGN_OFFSET(module_init_size) =
MEMBER_OFFSET("module", "init_layout") +
MEMBER_OFFSET("module_layout", "size");
ASSIGN_OFFSET(module_core_text_size) =
MEMBER_OFFSET("module", "core_layout") +
MEMBER_OFFSET("module_layout", "text_size");
ASSIGN_OFFSET(module_init_text_size) =
MEMBER_OFFSET("module", "init_layout") +
MEMBER_OFFSET("module_layout", "text_size");
ASSIGN_OFFSET(module_module_core) =
MEMBER_OFFSET("module", "core_layout") +
MEMBER_OFFSET("module_layout", "base");
ASSIGN_OFFSET(module_module_init) =
MEMBER_OFFSET("module", "init_layout") +
MEMBER_OFFSET("module_layout", "base");
}
MEMBER_OFFSET_INIT(module_percpu, "module", "percpu");
/*