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mcctrl: lookup unexported symbols at runtime

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Instead of parsing System.map, use kallsyms_lookup_name() to
get unexported symbols addresses at module loading time.

This lets mckernel work with kaslr enabled (it gets enabled by
default from el7.5 onwards)

Change-Id: Ie4349fc1145ebce44f37f1f40c16f9d75584074d
This commit is contained in:
Dominique Martinet
2018-08-03 13:12:08 +09:00
committed by Masamichi Takagi
parent 794684985f
commit e8f8660b73
10 changed files with 151 additions and 672 deletions
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42
config.h.in
View File

@@ -54,48 +54,6 @@
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define to address of kernel symbol __vvar_page, or 0 if exported */
#undef MCCTRL_KSYM___vvar_page
/* Define to address of kernel symbol hpet_address, or 0 if exported */
#undef MCCTRL_KSYM_hpet_address
/* Define to address of kernel symbol hv_clock, or 0 if exported */
#undef MCCTRL_KSYM_hv_clock
/* Define to address of kernel symbol sys_mount, or 0 if exported */
#undef MCCTRL_KSYM_sys_mount
/* Define to address of kernel symbol sys_readlink, or 0 if exported */
#undef MCCTRL_KSYM_sys_readlink
/* Define to address of kernel symbol sys_umount, or 0 if exported */
#undef MCCTRL_KSYM_sys_umount
/* Define to address of kernel symbol sys_unshare, or 0 if exported */
#undef MCCTRL_KSYM_sys_unshare
/* Define to address of kernel symbol vdso_end, or 0 if exported */
#undef MCCTRL_KSYM_vdso_end
/* Define to address of kernel symbol vdso_image_64, or 0 if exported */
#undef MCCTRL_KSYM_vdso_image_64
/* Define to address of kernel symbol vdso_pages, or 0 if exported */
#undef MCCTRL_KSYM_vdso_pages
/* Define to address of kernel symbol vdso_spec, or 0 if exported */
#undef MCCTRL_KSYM_vdso_spec
/* Define to address of kernel symbol vdso_start, or 0 if exported */
#undef MCCTRL_KSYM_vdso_start
/* Define to address of kernel symbol walk_page_range, or 0 if exported */
#undef MCCTRL_KSYM_walk_page_range
/* Define to address of kernel symbol zap_page_range, or 0 if exported */
#undef MCCTRL_KSYM_zap_page_range
/* McKernel specific headers */
#undef MCKERNEL_INCDIR