2007-12-03 17:43:49 +01:00
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project(pahole C)
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2008-11-20 16:54:39 +01:00
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cmake_minimum_required(VERSION 2.4.8)
|
2009-06-17 18:05:44 +02:00
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cmake_policy(SET CMP0005 NEW)
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2007-12-03 17:43:49 +01:00
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|
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INCLUDE_DIRECTORIES( ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR} )
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2006-12-12 03:37:23 +01:00
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2007-01-30 22:07:28 +01:00
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# Try to parse this later, Helio just showed me a KDE4 example to support
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# x86-64 builds.
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# the following are directories where stuff will be installed to
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set(__LIB "" CACHE STRING "Define suffix of directory name (32/64)" )
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2007-02-25 20:43:59 +01:00
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macro(_set_fancy _var _value _comment)
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2007-01-30 22:07:28 +01:00
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if (NOT DEFINED ${_var})
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set(${_var} ${_value})
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else (NOT DEFINED ${_var})
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set(${_var} "${${_var}}" CACHE PATH "${_comment}")
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endif (NOT DEFINED ${_var})
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2007-02-25 20:43:59 +01:00
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endmacro(_set_fancy)
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2007-01-30 22:07:28 +01:00
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2006-12-12 03:37:23 +01:00
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# where to look first for cmake modules,
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# before ${CMAKE_ROOT}/Modules/ is checked
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set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/modules")
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2007-04-26 16:02:20 +02:00
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if (NOT CMAKE_BUILD_TYPE)
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set (CMAKE_BUILD_TYPE Debug CACHE STRING
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"Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel."
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FORCE)
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endif (NOT CMAKE_BUILD_TYPE)
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2006-12-23 16:16:30 +01:00
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2018-08-16 21:09:14 +02:00
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add_definitions(-D_GNU_SOURCE -DDWARVES_VERSION="v1.12")
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2006-12-12 03:37:23 +01:00
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find_package(DWARF REQUIRED)
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2008-03-04 19:37:02 +01:00
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find_package(ZLIB REQUIRED)
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2006-12-12 03:37:23 +01:00
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2007-04-19 23:01:47 +02:00
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_set_fancy(LIB_INSTALL_DIR "${EXEC_INSTALL_PREFIX}${CMAKE_INSTALL_PREFIX}/${__LIB}" "libdir")
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2007-01-30 22:07:28 +01:00
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2009-04-19 18:48:51 +02:00
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set(dwarves_LIB_SRCS dwarves.c dwarves_fprintf.c gobuffer strings
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btf_loader: Introduce a loader for the BTF format
Show 'struct list_head' from DWARF info:
$ pahole -C list_head ~/git/build/v4.20-rc5+/net/ipv4/tcp.o
struct list_head {
struct list_head * next; /* 0 8 */
struct list_head * prev; /* 8 8 */
/* size: 16, cachelines: 1, members: 2 */
/* last cacheline: 16 bytes */
};
Try to show it from BTF, on a file without it:
$ pahole -F btf -C list_head ~/git/build/v4.20-rc5+/net/ipv4/tcp.o
pahole: /home/acme/git/build/v4.20-rc5+/net/ipv4/tcp.o: No debugging information found
Encode BTF from the DWARF info:
$ pahole -J ~/git/build/v4.20-rc5+/net/ipv4/tcp.o
Check that it is there:
$ readelf -SW ~/git/build/v4.20-rc5+/net/ipv4/tcp.o | grep BTF
readelf: /home/acme/git/build/v4.20-rc5+/net/ipv4/tcp.o: Warning: possibly corrupt ELF header - it has a non-zero program header offset, but no program headers
[136] .BTF PROGBITS 0000000000000000 101d0e 042edf 00 0 0 1
Now try again printing 'struct list_head' from the BTF info just
encoded:
$ pahole -F btf -C list_head ~/git/build/v4.20-rc5+/net/ipv4/tcp.o 2> /dev/null
struct list_head {
struct list_head * next; /* 0 8 */
struct list_head * prev; /* 8 8 */
/* size: 16, cachelines: 1, members: 2 */
/* last cacheline: 16 bytes */
};
$
There is the bitfields case that BTF desn't have the bit_size info for
bitfield members that makes the output from dwarf to be different than
the one from BTF:
$ pahole -F btf -C sk_buff ~/git/build/v4.20-rc5+/net/ipv4/tcp.o > /tmp/sk_buff.btf
$ pahole -F dwarf -C sk_buff ~/git/build/v4.20-rc5+/net/ipv4/tcp.o > /tmp/sk_buff.dwarf
$ diff -u /tmp/sk_buff.dwarf /tmp/sk_buff.btf
--- /tmp/sk_buff.dwarf 2018-12-20 14:50:51.428653046 -0300
+++ /tmp/sk_buff.btf 2018-12-20 14:50:46.302601516 -0300
@@ -38,45 +38,45 @@
__u16 hdr_len; /* 138 2 */
__u16 queue_mapping; /* 140 2 */
__u8 __cloned_offset[0]; /* 142 0 */
- __u8 cloned:1; /* 142: 7 1 */
- __u8 nohdr:1; /* 142: 6 1 */
- __u8 fclone:2; /* 142: 4 1 */
- __u8 peeked:1; /* 142: 3 1 */
- __u8 head_frag:1; /* 142: 2 1 */
- __u8 xmit_more:1; /* 142: 1 1 */
- __u8 pfmemalloc:1; /* 142: 0 1 */
+ __u8 cloned; /* 142 1 */
+ __u8 nohdr; /* 142 1 */
+ __u8 fclone; /* 142 1 */
+ __u8 peeked; /* 142 1 */
+ __u8 head_frag; /* 142 1 */
+ __u8 xmit_more; /* 142 1 */
+ __u8 pfmemalloc; /* 142 1 */
/* XXX 1 byte hole, try to pack */
__u32 headers_start[0]; /* 144 0 */
__u8 __pkt_type_offset[0]; /* 144 0 */
- __u8 pkt_type:3; /* 144: 5 1 */
- __u8 ignore_df:1; /* 144: 4 1 */
- __u8 nf_trace:1; /* 144: 3 1 */
- __u8 ip_summed:2; /* 144: 1 1 */
- __u8 ooo_okay:1; /* 144: 0 1 */
- __u8 l4_hash:1; /* 145: 7 1 */
- __u8 sw_hash:1; /* 145: 6 1 */
- __u8 wifi_acked_valid:1; /* 145: 5 1 */
- __u8 wifi_acked:1; /* 145: 4 1 */
- __u8 no_fcs:1; /* 145: 3 1 */
- __u8 encapsulation:1; /* 145: 2 1 */
- __u8 encap_hdr_csum:1; /* 145: 1 1 */
- __u8 csum_valid:1; /* 145: 0 1 */
- __u8 csum_complete_sw:1; /* 146: 7 1 */
- __u8 csum_level:2; /* 146: 5 1 */
- __u8 csum_not_inet:1; /* 146: 4 1 */
- __u8 dst_pending_confirm:1; /* 146: 3 1 */
- __u8 ndisc_nodetype:2; /* 146: 1 1 */
- __u8 ipvs_property:1; /* 146: 0 1 */
- __u8 inner_protocol_type:1; /* 147: 7 1 */
- __u8 remcsum_offload:1; /* 147: 6 1 */
- __u8 offload_fwd_mark:1; /* 147: 5 1 */
- __u8 offload_mr_fwd_mark:1; /* 147: 4 1 */
- __u8 tc_skip_classify:1; /* 147: 3 1 */
- __u8 tc_at_ingress:1; /* 147: 2 1 */
- __u8 tc_redirected:1; /* 147: 1 1 */
- __u8 tc_from_ingress:1; /* 147: 0 1 */
+ __u8 pkt_type; /* 144 1 */
+ __u8 ignore_df; /* 144 1 */
+ __u8 nf_trace; /* 144 1 */
+ __u8 ip_summed; /* 144 1 */
+ __u8 ooo_okay; /* 144 1 */
+ __u8 l4_hash; /* 145 1 */
+ __u8 sw_hash; /* 145 1 */
+ __u8 wifi_acked_valid; /* 145 1 */
+ __u8 wifi_acked; /* 145 1 */
+ __u8 no_fcs; /* 145 1 */
+ __u8 encapsulation; /* 145 1 */
+ __u8 encap_hdr_csum; /* 145 1 */
+ __u8 csum_valid; /* 145 1 */
+ __u8 csum_complete_sw; /* 146 1 */
+ __u8 csum_level; /* 146 1 */
+ __u8 csum_not_inet; /* 146 1 */
+ __u8 dst_pending_confirm; /* 146 1 */
+ __u8 ndisc_nodetype; /* 146 1 */
+ __u8 ipvs_property; /* 146 1 */
+ __u8 inner_protocol_type; /* 147 1 */
+ __u8 remcsum_offload; /* 147 1 */
+ __u8 offload_fwd_mark; /* 147 1 */
+ __u8 offload_mr_fwd_mark; /* 147 1 */
+ __u8 tc_skip_classify; /* 147 1 */
+ __u8 tc_at_ingress; /* 147 1 */
+ __u8 tc_redirected; /* 147 1 */
+ __u8 tc_from_ingress; /* 147 1 */
__u16 tc_index; /* 148 2 */
/* XXX 2 bytes hole, try to pack */
$
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-12-03 19:44:16 +01:00
|
|
|
ctf_encoder.c ctf_loader.c libctf.c btf_encoder.c btf_loader.c libbtf.c
|
2018-03-06 01:53:50 +01:00
|
|
|
dwarf_loader.c dutil.c elf_symtab.c rbtree.c)
|
2007-02-25 20:43:59 +01:00
|
|
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add_library(dwarves SHARED ${dwarves_LIB_SRCS})
|
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set_target_properties(dwarves PROPERTIES VERSION 1.0.0 SOVERSION 1)
|
2015-09-16 16:31:40 +02:00
|
|
|
set_target_properties(dwarves PROPERTIES INTERFACE_LINK_LIBRARIES "")
|
2008-03-04 19:37:02 +01:00
|
|
|
target_link_libraries(dwarves ${DWARF_LIBRARIES} ${ZLIB_LIBRARIES})
|
2006-12-12 03:37:23 +01:00
|
|
|
|
2007-05-06 19:50:28 +02:00
|
|
|
set(dwarves_emit_LIB_SRCS dwarves_emit.c)
|
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add_library(dwarves_emit SHARED ${dwarves_emit_LIB_SRCS})
|
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set_target_properties(dwarves_emit PROPERTIES VERSION 1.0.0 SOVERSION 1)
|
2009-12-17 18:20:27 +01:00
|
|
|
target_link_libraries(dwarves_emit dwarves)
|
2007-05-06 19:50:28 +02:00
|
|
|
|
2007-05-07 05:30:02 +02:00
|
|
|
set(dwarves_reorganize_LIB_SRCS dwarves_reorganize.c)
|
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|
|
add_library(dwarves_reorganize SHARED ${dwarves_reorganize_LIB_SRCS})
|
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|
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set_target_properties(dwarves_reorganize PROPERTIES VERSION 1.0.0 SOVERSION 1)
|
2009-12-17 18:20:27 +01:00
|
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target_link_libraries(dwarves_reorganize dwarves)
|
2007-05-07 05:30:02 +02:00
|
|
|
|
2009-03-18 15:08:23 +01:00
|
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|
set(codiff_SRCS codiff.c)
|
2007-02-25 20:43:59 +01:00
|
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|
add_executable(codiff ${codiff_SRCS})
|
2007-03-28 15:18:57 +02:00
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|
target_link_libraries(codiff dwarves)
|
2006-12-12 03:37:23 +01:00
|
|
|
|
2009-03-18 15:08:23 +01:00
|
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set(ctracer_SRCS ctracer.c)
|
2007-02-25 20:43:59 +01:00
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add_executable(ctracer ${ctracer_SRCS})
|
2010-11-20 18:18:01 +01:00
|
|
|
target_link_libraries(ctracer dwarves dwarves_emit dwarves_reorganize ${ELF_LIBRARY})
|
2006-12-20 15:16:16 +01:00
|
|
|
|
2007-02-25 20:43:59 +01:00
|
|
|
set(dtagnames_SRCS dtagnames.c)
|
|
|
|
add_executable(dtagnames ${dtagnames_SRCS})
|
2007-03-28 15:18:57 +02:00
|
|
|
target_link_libraries(dtagnames dwarves)
|
2006-12-28 17:03:42 +01:00
|
|
|
|
2007-02-25 20:43:59 +01:00
|
|
|
set(pahole_SRCS pahole.c)
|
|
|
|
add_executable(pahole ${pahole_SRCS})
|
2007-05-07 05:30:02 +02:00
|
|
|
target_link_libraries(pahole dwarves dwarves_reorganize)
|
2006-12-12 03:37:23 +01:00
|
|
|
|
2007-02-25 20:43:59 +01:00
|
|
|
set(pdwtags_SRCS pdwtags.c)
|
|
|
|
add_executable(pdwtags ${pdwtags_SRCS})
|
2007-03-28 15:18:57 +02:00
|
|
|
target_link_libraries(pdwtags dwarves)
|
2007-01-19 00:13:56 +01:00
|
|
|
|
2007-02-25 20:43:59 +01:00
|
|
|
set(pglobal_SRCS pglobal.c)
|
|
|
|
add_executable(pglobal ${pglobal_SRCS})
|
2007-03-28 15:18:57 +02:00
|
|
|
target_link_libraries(pglobal dwarves)
|
2007-02-02 14:56:53 +01:00
|
|
|
|
2007-02-25 20:43:59 +01:00
|
|
|
set(pfunct_SRCS pfunct.c )
|
|
|
|
add_executable(pfunct ${pfunct_SRCS})
|
2010-11-20 18:18:01 +01:00
|
|
|
target_link_libraries(pfunct dwarves dwarves_emit ${ELF_LIBRARY})
|
2006-12-12 03:37:23 +01:00
|
|
|
|
2007-02-25 20:43:59 +01:00
|
|
|
set(prefcnt_SRCS prefcnt.c)
|
|
|
|
add_executable(prefcnt ${prefcnt_SRCS})
|
2007-03-28 15:18:57 +02:00
|
|
|
target_link_libraries(prefcnt dwarves)
|
2007-01-11 19:41:54 +01:00
|
|
|
|
2010-01-11 21:50:31 +01:00
|
|
|
set(scncopy_SRCS scncopy.c elfcreator.c)
|
|
|
|
add_executable(scncopy ${scncopy_SRCS})
|
2010-11-20 18:18:01 +01:00
|
|
|
target_link_libraries(scncopy dwarves ${ELF_LIBRARY})
|
2010-01-11 21:50:31 +01:00
|
|
|
|
2007-06-12 20:53:46 +02:00
|
|
|
set(syscse_SRCS syscse.c)
|
|
|
|
add_executable(syscse ${syscse_SRCS})
|
|
|
|
target_link_libraries(syscse dwarves)
|
|
|
|
|
2007-12-28 02:00:07 +01:00
|
|
|
install(TARGETS codiff ctracer dtagnames pahole pdwtags
|
2010-01-11 21:50:31 +01:00
|
|
|
pfunct pglobal prefcnt scncopy syscse RUNTIME DESTINATION
|
2007-04-19 23:01:47 +02:00
|
|
|
${CMAKE_INSTALL_PREFIX}/bin)
|
2007-02-25 20:43:59 +01:00
|
|
|
install(TARGETS dwarves LIBRARY DESTINATION ${LIB_INSTALL_DIR})
|
2007-05-07 05:30:02 +02:00
|
|
|
install(TARGETS dwarves dwarves_emit dwarves_reorganize LIBRARY DESTINATION ${LIB_INSTALL_DIR})
|
2009-04-23 20:08:10 +02:00
|
|
|
install(FILES dwarves.h dwarves_emit.h dwarves_reorganize.h
|
2009-06-04 19:56:44 +02:00
|
|
|
dutil.h gobuffer.h list.h rbtree.h strings.h
|
2009-04-23 20:08:10 +02:00
|
|
|
DESTINATION ${CMAKE_INSTALL_PREFIX}/include/dwarves/)
|
2009-02-11 15:19:46 +01:00
|
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|
install(FILES man-pages/pahole.1 DESTINATION ${CMAKE_INSTALL_PREFIX}/share/man/man1/)
|
2007-08-14 16:33:54 +02:00
|
|
|
install(PROGRAMS ostra/ostra-cg DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
|
2007-12-03 17:43:49 +01:00
|
|
|
install(FILES ostra/python/ostra.py DESTINATION ${CMAKE_INSTALL_PREFIX}/share/dwarves/runtime/python)
|
2007-12-06 20:43:20 +01:00
|
|
|
install(FILES lib/Makefile lib/ctracer_relay.c lib/ctracer_relay.h lib/linux.blacklist.cu
|
2007-12-03 17:43:49 +01:00
|
|
|
DESTINATION ${CMAKE_INSTALL_PREFIX}/share/dwarves/runtime)
|