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-rw-r--r--meta/recipes-kernel/systemtap/systemtap/0001-Added-a-couple-of-small-sysroot-fixes.patch42
-rw-r--r--meta/recipes-kernel/systemtap/systemtap/0001-Delay-adding-sysroot-path-to-module-name-in-case-of-.patch61
-rw-r--r--meta/recipes-kernel/systemtap/systemtap/0001-Make-sure-sysroot-paths-don-t-end-with-a-slash.patch128
-rw-r--r--meta/recipes-kernel/systemtap/systemtap/0001-Use-sysroot-when-looking-for-the-System.map-file.patch29
-rw-r--r--meta/recipes-kernel/systemtap/systemtap/0001-_stp_umodule_relocate-needs-target-file-path-not-hos.patch39
-rw-r--r--meta/recipes-kernel/systemtap/systemtap/0001-debuginfo-lookup-with-sysroot-case-do-not-remove-sys.patch42
-rw-r--r--meta/recipes-kernel/systemtap/systemtap/0001-sysroot-fix-short-release-r-option-handling-follow-u.patch40
-rw-r--r--meta/recipes-kernel/systemtap/systemtap/0001-sysroot-fix-short-release-r-option-handling.patch53
-rw-r--r--meta/recipes-kernel/systemtap/systemtap/0001-sysroot-handle-symbolic-links-with-absolute-name-rel.patch117
-rw-r--r--meta/recipes-kernel/systemtap/systemtap_git.inc9
10 files changed, 560 insertions, 0 deletions
diff --git a/meta/recipes-kernel/systemtap/systemtap/0001-Added-a-couple-of-small-sysroot-fixes.patch b/meta/recipes-kernel/systemtap/systemtap/0001-Added-a-couple-of-small-sysroot-fixes.patch
new file mode 100644
index 0000000000..c0ceb5a412
--- /dev/null
+++ b/meta/recipes-kernel/systemtap/systemtap/0001-Added-a-couple-of-small-sysroot-fixes.patch
@@ -0,0 +1,42 @@
1From a714658727206d2a98a7194b7e6d29dbd3e27b8d Mon Sep 17 00:00:00 2001
2From: David Smith <dsmith@redhat.com>
3Date: Mon, 19 Mar 2018 16:50:05 -0500
4Subject: [PATCH] Added a couple of small sysroot fixes.
5
6* tapsets.cxx (dwarf_builder::build): Fix commit 4ffecddf5.
7 (path_remove_sysroot): Fix extra '/' present at start of paths.
8
9Upstream-Status: Backport
10Signed-off-by: Victor Kamensky <kamensky@cisco.com>
11---
12 tapsets.cxx | 10 +++++++---
13 1 file changed, 7 insertions(+), 3 deletions(-)
14
15Index: git/tapsets.cxx
16===================================================================
17--- git.orig/tapsets.cxx
18+++ git/tapsets.cxx
19@@ -1395,7 +1395,8 @@ string path_remove_sysroot(const systemt
20 string retval = path;
21 if (!sess.sysroot.empty() &&
22 (pos = retval.find(sess.sysroot)) != string::npos)
23- retval.replace(pos, sess.sysroot.length(), "/");
24+ retval.replace(pos, sess.sysroot.length(),
25+ (sess.sysroot.back() == '/' ? "/": ""));
26 return retval;
27 }
28
29@@ -8412,8 +8413,11 @@ dwarf_builder::build(systemtap_session &
30
31 // PR13338: unquote glob results
32 module_name = unescape_glob_chars (module_name);
33- user_path = find_executable (module_name, "", sess.sysenv); // canonicalize it
34- if (!is_fully_resolved(user_path, sess.sysroot, sess.sysenv))
35+ user_path = find_executable (module_name, sess.sysroot, sess.sysenv); // canonicalize it
36+ // Note we don't need to pass the sysroot to
37+ // is_fully_resolved(), since we just passed it to
38+ // find_executable().
39+ if (!is_fully_resolved(user_path, "", sess.sysenv))
40 throw SEMANTIC_ERROR(_F("cannot find executable '%s'",
41 user_path.to_string().c_str()));
42
diff --git a/meta/recipes-kernel/systemtap/systemtap/0001-Delay-adding-sysroot-path-to-module-name-in-case-of-.patch b/meta/recipes-kernel/systemtap/systemtap/0001-Delay-adding-sysroot-path-to-module-name-in-case-of-.patch
new file mode 100644
index 0000000000..89951a2f19
--- /dev/null
+++ b/meta/recipes-kernel/systemtap/systemtap/0001-Delay-adding-sysroot-path-to-module-name-in-case-of-.patch
@@ -0,0 +1,61 @@
1From 4ffecddf5433d65a6f01241990c9d516586b1c79 Mon Sep 17 00:00:00 2001
2From: Victor Kamensky <kamensky@cisco.com>
3Date: Mon, 19 Mar 2018 08:53:51 -0500
4Subject: [PATCH] Delay adding sysroot path to module name in case of non
5 absolute executable
6
7Current stap code adds sysroot prematurely for probes that specify non
8absolute path name, i.e like "foo", so when find_executable called it
9receives full path as <sysroot>/foo and find_executable does not search
10PATH while applying sysroot.
11
12Fix delays adding sysroot till path inside of sysroot is searched first.
13
14Also fix missing sysroot addition in glob expansion case.
15
16Upstream-Status: Backport
17Signed-off-by: Victor Kamensky <kamensky@cisco.com>
18---
19 tapsets.cxx | 8 ++++----
20 1 file changed, 4 insertions(+), 4 deletions(-)
21
22Index: git/tapsets.cxx
23===================================================================
24--- git.orig/tapsets.cxx
25+++ git/tapsets.cxx
26@@ -746,7 +746,7 @@ base_query::base_query(dwflpp & dw, lite
27 pid_val = 0;
28 get_string_param(params, TOK_PROCESS, module_val);
29 }
30- module_val = find_executable (module_val, "", sess.sysenv);
31+ module_val = find_executable (module_val, sess.sysroot, sess.sysenv);
32 if (!is_fully_resolved(module_val, "", sess.sysenv))
33 throw SEMANTIC_ERROR(_F("cannot find executable '%s'",
34 module_val.to_string().c_str()));
35@@ -8287,7 +8287,6 @@ dwarf_builder::build(systemtap_session &
36 }
37 else
38 {
39- module_name = (string)sess.sysroot + (string)module_name;
40 filled_parameters[TOK_PROCESS] = new literal_string(module_name);
41 }
42 }
43@@ -8321,7 +8320,8 @@ dwarf_builder::build(systemtap_session &
44 assert (lit);
45
46 // Evaluate glob here, and call derive_probes recursively with each match.
47- const auto& globs = glob_executable (module_name);
48+ const auto& globs = glob_executable (sess.sysroot
49+ + string(module_name));
50 unsigned results_pre = finished_results.size();
51 for (auto it = globs.begin(); it != globs.end(); ++it)
52 {
53@@ -8413,7 +8413,7 @@ dwarf_builder::build(systemtap_session &
54 // PR13338: unquote glob results
55 module_name = unescape_glob_chars (module_name);
56 user_path = find_executable (module_name, "", sess.sysenv); // canonicalize it
57- if (!is_fully_resolved(user_path, "", sess.sysenv))
58+ if (!is_fully_resolved(user_path, sess.sysroot, sess.sysenv))
59 throw SEMANTIC_ERROR(_F("cannot find executable '%s'",
60 user_path.to_string().c_str()));
61
diff --git a/meta/recipes-kernel/systemtap/systemtap/0001-Make-sure-sysroot-paths-don-t-end-with-a-slash.patch b/meta/recipes-kernel/systemtap/systemtap/0001-Make-sure-sysroot-paths-don-t-end-with-a-slash.patch
new file mode 100644
index 0000000000..7cd9030eac
--- /dev/null
+++ b/meta/recipes-kernel/systemtap/systemtap/0001-Make-sure-sysroot-paths-don-t-end-with-a-slash.patch
@@ -0,0 +1,128 @@
1From 41efad04730be89889d1483719f9a6c9396dc250 Mon Sep 17 00:00:00 2001
2From: David Smith <dsmith@redhat.com>
3Date: Wed, 14 Mar 2018 17:05:25 -0500
4Subject: [PATCH] Make sure sysroot paths don't end with a slash.
5
6* session.cxx (parse_cmdline): Make sure a sysroot path does not end with
7 a '/', since we build paths like: sysroot + "/lib/modules". If the
8 sysroot path ends with a '/', we end up with paths like
9 '/SYSROOT//lib/modules'.
10 (setup_kernel_release): Take a string parameter, not a character pointer.
11* session.h: Update setup_kernel_release() prototype.
12
13Upstream-Status: Backport
14Signed-off-by: Victor Kamensky <kamensky@cisco.com>
15---
16 session.cxx | 34 ++++++++++++++++++++++++++--------
17 session.h | 2 +-
18 2 files changed, 27 insertions(+), 9 deletions(-)
19
20Index: git/session.cxx
21===================================================================
22--- git.orig/session.cxx
23+++ git/session.cxx
24@@ -722,6 +722,9 @@ systemtap_session::parse_cmdline (int ar
25 client_options_disallowed_for_unprivileged = "";
26 std::set<std::string> additional_unwindsym_modules;
27 struct rlimit our_rlimit;
28+ bool sysroot_option_seen = false;
29+ string kernel_release_value;
30+
31 while (true)
32 {
33 char * num_endptr;
34@@ -887,7 +890,7 @@ systemtap_session::parse_cmdline (int ar
35 // Note that '-' must come last in a regex bracket expression.
36 assert_regexp_match("-r parameter from client", optarg, "^[a-z0-9_.+-]+$");
37 server_args.push_back (string ("-") + (char)grc + optarg);
38- setup_kernel_release(optarg);
39+ kernel_release_value = optarg;
40 break;
41
42 case 'a':
43@@ -1473,7 +1476,7 @@ systemtap_session::parse_cmdline (int ar
44 if (client_options) {
45 cerr << _F("ERROR: %s invalid with %s", "--sysroot", "--client-options") << endl;
46 return 1;
47- } else if (!sysroot.empty()) {
48+ } else if (sysroot_option_seen) {
49 cerr << "ERROR: multiple --sysroot options not supported" << endl;
50 return 1;
51 } else {
52@@ -1487,11 +1490,17 @@ systemtap_session::parse_cmdline (int ar
53
54 sysroot = string(spath);
55 free (spath);
56- if (sysroot[sysroot.size() - 1] != '/')
57- sysroot.append("/");
58
59- break;
60+ // We do path creation like this:
61+ // sysroot + "/lib/modules"
62+ // So, we don't want the sysroot path to end with a '/',
63+ // otherwise we'll end up with '/foo//lib/modules'.
64+ if (sysroot.back() == '/') {
65+ sysroot.pop_back();
66+ }
67 }
68+ sysroot_option_seen = true;
69+ break;
70
71 case LONG_OPT_SYSENV:
72 if (client_options) {
73@@ -1501,7 +1510,7 @@ systemtap_session::parse_cmdline (int ar
74 string sysenv_str = optarg;
75 string value;
76 size_t pos;
77- if (sysroot.empty()) {
78+ if (! sysroot_option_seen) {
79 cerr << "ERROR: --sysenv must follow --sysroot" << endl;
80 return 1;
81 }
82@@ -1646,6 +1655,15 @@ systemtap_session::parse_cmdline (int ar
83 }
84 }
85
86+ if (! kernel_release_value.empty())
87+ {
88+ setup_kernel_release(kernel_release_value);
89+ }
90+ else if (! sysroot.empty())
91+ {
92+ kernel_build_tree = sysroot + "/lib/modules/" + kernel_release + "/build";
93+ }
94+
95 return 0;
96 }
97
98@@ -2152,7 +2170,7 @@ void systemtap_session::insert_loaded_mo
99 }
100
101 void
102-systemtap_session::setup_kernel_release (const char* kstr)
103+systemtap_session::setup_kernel_release (const string& kstr)
104 {
105 // Sometimes we may get dupes here... e.g. a server may have a full
106 // -r /path/to/kernel followed by a client's -r kernel.
107@@ -2183,7 +2201,7 @@ systemtap_session::setup_kernel_release
108 else
109 {
110 update_release_sysroot = true;
111- kernel_release = string (kstr);
112+ kernel_release = kstr;
113 if (!kernel_release.empty())
114 kernel_build_tree = "/lib/modules/" + kernel_release + "/build";
115
116Index: git/session.h
117===================================================================
118--- git.orig/session.h
119+++ git/session.h
120@@ -144,7 +144,7 @@ public:
121
122 // NB: It is very important for all of the above (and below) fields
123 // to be cleared in the systemtap_session ctor (session.cxx).
124- void setup_kernel_release (const char* kstr);
125+ void setup_kernel_release (const std::string& kstr);
126 void insert_loaded_modules ();
127
128 // command line parsing
diff --git a/meta/recipes-kernel/systemtap/systemtap/0001-Use-sysroot-when-looking-for-the-System.map-file.patch b/meta/recipes-kernel/systemtap/systemtap/0001-Use-sysroot-when-looking-for-the-System.map-file.patch
new file mode 100644
index 0000000000..b2820b31e8
--- /dev/null
+++ b/meta/recipes-kernel/systemtap/systemtap/0001-Use-sysroot-when-looking-for-the-System.map-file.patch
@@ -0,0 +1,29 @@
1From 436063d5e4738a9b03535d330a2242be5118e745 Mon Sep 17 00:00:00 2001
2From: David Smith <dsmith@redhat.com>
3Date: Thu, 8 Mar 2018 16:01:58 -0600
4Subject: [PATCH] Use sysroot when looking for the System.map file.
5
6Add sysroot to system_map_path + "/boot/System.map" case. Otherwise
7stap tries to look symbols on host system and it produce error like this:
8
9> Kernel symbol table /boot/System.map-4.9.78-yocto-standard unavailable, (No such file or directory)
10
11Upstream-Status: Backport
12Signed-off-by: Victor Kamensky <kamensky@cisco.com>
13---
14 session.cxx | 2 +-
15 1 file changed, 1 insertion(+), 1 deletion(-)
16
17Index: git/session.cxx
18===================================================================
19--- git.orig/session.cxx
20+++ git/session.cxx
21@@ -2013,7 +2013,7 @@ systemtap_session::parse_kernel_function
22 clog << _F("Kernel symbol table %s unavailable, (%s)",
23 system_map_path.c_str(), strerror(errno)) << endl;
24
25- system_map_path = "/boot/System.map-" + kernel_release;
26+ system_map_path = sysroot + "/boot/System.map-" + kernel_release;
27 system_map.clear();
28 system_map.open(system_map_path.c_str(), ifstream::in);
29 if (! system_map.is_open())
diff --git a/meta/recipes-kernel/systemtap/systemtap/0001-_stp_umodule_relocate-needs-target-file-path-not-hos.patch b/meta/recipes-kernel/systemtap/systemtap/0001-_stp_umodule_relocate-needs-target-file-path-not-hos.patch
new file mode 100644
index 0000000000..98181a1294
--- /dev/null
+++ b/meta/recipes-kernel/systemtap/systemtap/0001-_stp_umodule_relocate-needs-target-file-path-not-hos.patch
@@ -0,0 +1,39 @@
1From 183c7a7a8167333c873525f7908913837b8dc3cb Mon Sep 17 00:00:00 2001
2From: Victor Kamensky <kamensky@cisco.com>
3Date: Tue, 20 Mar 2018 12:41:05 -0500
4Subject: [PATCH] _stp_umodule_relocate needs target file path, not host file
5 path
6
7Strip of sysroot from module name is required when _stp_umodule_relocate
8call is generated. Otherwise path won't match path on target and could
9will fail to calculated address within the file.
10
11Upstream-Status: Backport
12Signed-off-by: Victor Kamensky <kamensky@cisco.com>
13---
14 loc2stap.cxx | 5 ++++-
15 1 file changed, 4 insertions(+), 1 deletion(-)
16
17diff --git a/loc2stap.cxx b/loc2stap.cxx
18index 4818ee0..e09954f 100644
19--- a/loc2stap.cxx
20+++ b/loc2stap.cxx
21@@ -17,6 +17,7 @@
22
23 #include "loc2stap.h"
24 #include "dwflpp.h"
25+#include "tapsets.h"
26
27 #if ! _ELFUTILS_PREREQ(0, 153)
28 #define DW_OP_GNU_entry_value 0xf3
29@@ -106,7 +107,9 @@ location_context::translate_address(Dwarf_Addr addr)
30 c = "/* pragma:vma */ "
31 "({ unsigned long addr = 0; "
32 "addr = _stp_umodule_relocate (\""
33- + resolve_path(dw->module_name.c_str()) + "\", "
34+ + path_remove_sysroot(dw->sess,
35+ resolve_path(dw->module_name.c_str()))
36+ + "\", "
37 + lex_cast_hex (addr)
38 + ", current); addr; })";
39 }
diff --git a/meta/recipes-kernel/systemtap/systemtap/0001-debuginfo-lookup-with-sysroot-case-do-not-remove-sys.patch b/meta/recipes-kernel/systemtap/systemtap/0001-debuginfo-lookup-with-sysroot-case-do-not-remove-sys.patch
new file mode 100644
index 0000000000..160642db08
--- /dev/null
+++ b/meta/recipes-kernel/systemtap/systemtap/0001-debuginfo-lookup-with-sysroot-case-do-not-remove-sys.patch
@@ -0,0 +1,42 @@
1From b29e448e12040ed8f4d83743a14db0f138a7cc67 Mon Sep 17 00:00:00 2001
2From: Victor Kamensky <kamensky@cisco.com>
3Date: Wed, 14 Mar 2018 16:54:08 -0500
4Subject: [PATCH] debuginfo lookup with sysroot case do not remove sysroot from
5 file_name
6
7If sysroot option is passed, and debug symbols reside in sysroot along
8with executable <foo> in <foo_dir>/.debug/<foo_file> directory,
9stap fails to find debuginfo because it strips out sysroot path
10from file_name so dwfl_standard_find_debuginfo ends up looking at
11host <foo_dir>/.debug/<foo_file> rather then checking
12<sysroot>/<foo_dir>/.debug/<foo_file>.
13
14Upstream-Status: Backport
15Signed-off-by: Victor Kamensky <kamensky@cisco.com>
16---
17 setupdwfl.cxx | 12 ------------
18 1 file changed, 12 deletions(-)
19
20diff --git a/setupdwfl.cxx b/setupdwfl.cxx
21index 11e0bb2..2a87982 100644
22--- a/setupdwfl.cxx
23+++ b/setupdwfl.cxx
24@@ -627,18 +627,6 @@ internal_find_debuginfo (Dwfl_Module *mod,
25
26 call_dwfl_standard_find_debuginfo:
27
28- if (current_session_for_find_debuginfo)
29- {
30- string sysroot = current_session_for_find_debuginfo->sysroot + "/*";
31- int found = fnmatch(sysroot.c_str(), file_name, 0);
32-
33- if (found)
34- {
35- file_name = file_name
36- + current_session_for_find_debuginfo->sysroot.length() - 1;
37- }
38- }
39-
40 /* Call the original dwfl_standard_find_debuginfo */
41 return dwfl_standard_find_debuginfo(mod, userdata, modname, base,
42 file_name, debuglink_file,
diff --git a/meta/recipes-kernel/systemtap/systemtap/0001-sysroot-fix-short-release-r-option-handling-follow-u.patch b/meta/recipes-kernel/systemtap/systemtap/0001-sysroot-fix-short-release-r-option-handling-follow-u.patch
new file mode 100644
index 0000000000..6fe7d4d1cf
--- /dev/null
+++ b/meta/recipes-kernel/systemtap/systemtap/0001-sysroot-fix-short-release-r-option-handling-follow-u.patch
@@ -0,0 +1,40 @@
1From 7e11f129ff370ce5f39812ce2ae6ce40818a347f Mon Sep 17 00:00:00 2001
2From: Victor Kamensky <kamensky@cisco.com>
3Date: Thu, 22 Mar 2018 16:02:02 -0500
4Subject: [PATCH] sysroot: fix short release -r option handling follow up
5
6In case of sysroot set and short release -r option it does not make sense
7to pass short release name into dwfl_linux_kernel_report_offline
8function. This function is not aware about sysroot and it won't look for
9kernel modules under sysroot directory.
10
11Upstream-Status: Backport
12Signed-off-by: Victor Kamensky <kamensky@cisco.com>
13---
14 setupdwfl.cxx | 10 +++++++++-
15 1 file changed, 9 insertions(+), 1 deletion(-)
16
17diff --git a/setupdwfl.cxx b/setupdwfl.cxx
18index c419afa..0cf5810 100644
19--- a/setupdwfl.cxx
20+++ b/setupdwfl.cxx
21@@ -367,7 +367,15 @@ setup_dwfl_kernel (unsigned *modules_found, systemtap_session &s)
22 // hard-code this magic here.
23 string lib_path = s.sysroot + "/lib/modules/" + s.kernel_release + "/build";
24 if (s.kernel_build_tree == lib_path)
25- elfutils_kernel_path = s.kernel_release;
26+ {
27+ if (s.sysroot != "")
28+ // If we have sysroot set does not make sense to pass
29+ // short release to dwfl, it won't take a sysroot into
30+ // account. Let's construct full path in such case.
31+ elfutils_kernel_path = string(s.sysroot + "/lib/modules/" + s.kernel_release);
32+ else
33+ elfutils_kernel_path = s.kernel_release;
34+ }
35 else
36 elfutils_kernel_path = s.kernel_build_tree;
37 offline_modules_found = 0;
38--
392.7.4
40
diff --git a/meta/recipes-kernel/systemtap/systemtap/0001-sysroot-fix-short-release-r-option-handling.patch b/meta/recipes-kernel/systemtap/systemtap/0001-sysroot-fix-short-release-r-option-handling.patch
new file mode 100644
index 0000000000..b31d6274e2
--- /dev/null
+++ b/meta/recipes-kernel/systemtap/systemtap/0001-sysroot-fix-short-release-r-option-handling.patch
@@ -0,0 +1,53 @@
1From a9ce89bcd2d78728faef59bda60e75510972cd56 Mon Sep 17 00:00:00 2001
2From: Victor Kamensky <kamensky@cisco.com>
3Date: Wed, 14 Mar 2018 17:09:44 -0500
4Subject: [PATCH] sysroot: fix short release -r option handling
5
6* setupdwfl.cxx (debuginfo_path_insert_sysroot): Add a '/' to the end of
7 the sysroot for path_insert_sysroot().
8 (setup_dwfl_kernel): Simplify logic when finding the kernel path to send
9 to elfutils.
10
11Upstream-Status: Backport
12Signed-off-by: Victor Kamensky <kamensky@cisco.com>
13---
14 setupdwfl.cxx | 19 ++++++++++++-------
15 1 file changed, 12 insertions(+), 7 deletions(-)
16
17diff --git a/setupdwfl.cxx b/setupdwfl.cxx
18index 2a87982..f6c3157 100644
19--- a/setupdwfl.cxx
20+++ b/setupdwfl.cxx
21@@ -339,6 +339,13 @@ static char * path_insert_sysroot(string sysroot, string path)
22
23 void debuginfo_path_insert_sysroot(string sysroot)
24 {
25+ // FIXME: This is a short-term fix, until we expect sysroot paths to
26+ // always end with a '/' (and never be empty).
27+ //
28+ // The path_insert_sysroot() function assumes that sysroot has a '/'
29+ // on the end. Make sure that is true.
30+ if (sysroot.back() != '/')
31+ sysroot.push_back('/');
32 debuginfo_path = path_insert_sysroot(sysroot, debuginfo_path);
33 debuginfo_usr_path = path_insert_sysroot(sysroot, debuginfo_usr_path);
34 }
35@@ -358,13 +365,11 @@ setup_dwfl_kernel (unsigned *modules_found, systemtap_session &s)
36 // no way to set the dwfl_callback.debuginfo_path and always
37 // passs the plain kernel_release here. So instead we have to
38 // hard-code this magic here.
39- string lib_path = "/lib/modules/" + s.kernel_release + "/build";
40- if (s.kernel_build_tree == string(s.sysroot + lib_path) ||
41- (s.kernel_build_tree == lib_path
42- && s.sysroot == "/"))
43- elfutils_kernel_path = s.kernel_release;
44- else
45- elfutils_kernel_path = s.kernel_build_tree;
46+ string lib_path = s.sysroot + "/lib/modules/" + s.kernel_release + "/build";
47+ if (s.kernel_build_tree == lib_path)
48+ elfutils_kernel_path = s.kernel_release;
49+ else
50+ elfutils_kernel_path = s.kernel_build_tree;
51 offline_modules_found = 0;
52
53 // First try to report full path modules.
diff --git a/meta/recipes-kernel/systemtap/systemtap/0001-sysroot-handle-symbolic-links-with-absolute-name-rel.patch b/meta/recipes-kernel/systemtap/systemtap/0001-sysroot-handle-symbolic-links-with-absolute-name-rel.patch
new file mode 100644
index 0000000000..8a3d39a5b8
--- /dev/null
+++ b/meta/recipes-kernel/systemtap/systemtap/0001-sysroot-handle-symbolic-links-with-absolute-name-rel.patch
@@ -0,0 +1,117 @@
1From 2041085d1a700201dc088991ca8136e7935bf42f Mon Sep 17 00:00:00 2001
2From: Victor Kamensky <kamensky@cisco.com>
3Date: Wed, 21 Mar 2018 11:35:26 -0500
4Subject: [PATCH] sysroot: handle symbolic links with absolute name relative to
5 sysroot
6
7In case of symbolic link found under sysroot point to absolute path,
8instead of trying to look for such absolute path in host system,
9apply sysroot prefix first.
10
11Upstream-Status: Backport
12Signed-off-by: Victor Kamensky <kamensky@cisco.com>
13---
14 util.cxx | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
15 1 file changed, 76 insertions(+)
16
17Index: git/util.cxx
18===================================================================
19--- git.orig/util.cxx
20+++ git/util.cxx
21@@ -441,6 +441,64 @@ split_lines(const char *buf, size_t n)
22 return lines;
23 }
24
25+static string
26+follow_link(const string& name, const string& sysroot)
27+{
28+ char *linkname;
29+ ssize_t r;
30+ string retpath;
31+ struct stat st;
32+
33+ const char *f = name.c_str();
34+
35+ lstat(f, &st);
36+
37+ linkname = (char *) malloc(st.st_size + 1);
38+
39+ if (linkname)
40+ {
41+ r = readlink(f, linkname, st.st_size + 1);
42+ linkname[st.st_size] = '\0';
43+ /*
44+ * If we have non-empty sysroot and we got link that
45+ * points to absolute path name, we need to look at
46+ * this path relative to sysroot itself. access and
47+ * stat will follow symbolic links correctly only in
48+ * case with empty sysroot.
49+ */
50+ while (r != -1 && linkname && linkname[0] == '/')
51+ {
52+ string fname1 = sysroot + linkname;
53+ const char *f1 = fname1.c_str();
54+ if (access(f1, X_OK) == 0
55+ && stat(f1, &st) == 0
56+ && S_ISREG(st.st_mode))
57+ {
58+ retpath = fname1;
59+ break;
60+ }
61+ else if (lstat(f1, &st) == 0
62+ && S_ISLNK(st.st_mode))
63+ {
64+ free(linkname);
65+ linkname = (char *) malloc(st.st_size + 1);
66+ if (linkname)
67+ {
68+ r = readlink(f1, linkname, st.st_size + 1);
69+ linkname[st.st_size] = '\0';
70+ }
71+ }
72+ else
73+ {
74+ break;
75+ }
76+ }
77+ }
78+ free(linkname);
79+
80+ return retpath;
81+}
82+
83 // Resolve an executable name to a canonical full path name, with the
84 // same policy as execvp(). A program name not containing a slash
85 // will be searched along the $PATH.
86@@ -465,6 +523,14 @@ string find_executable(const string& nam
87 if (name.find('/') != string::npos) // slash in the path already?
88 {
89 retpath = sysroot + name;
90+
91+ const char *f = retpath.c_str();
92+ if (sysroot != ""
93+ && lstat(f, &st) == 0
94+ && S_ISLNK(st.st_mode))
95+ {
96+ retpath = follow_link(f, sysroot);
97+ }
98 }
99 else // Nope, search $PATH.
100 {
101@@ -493,6 +559,16 @@ string find_executable(const string& nam
102 retpath = fname;
103 break;
104 }
105+ else if (sysroot != ""
106+ && lstat(f, &st) == 0
107+ && S_ISLNK(st.st_mode))
108+ {
109+ retpath = follow_link(f, sysroot);
110+ if (retpath != "")
111+ {
112+ break;
113+ }
114+ }
115 }
116 }
117 }
diff --git a/meta/recipes-kernel/systemtap/systemtap_git.inc b/meta/recipes-kernel/systemtap/systemtap_git.inc
index eef0c9cbe1..e1b7789aed 100644
--- a/meta/recipes-kernel/systemtap/systemtap_git.inc
+++ b/meta/recipes-kernel/systemtap/systemtap_git.inc
@@ -14,6 +14,15 @@ SRC_URI = "git://sourceware.org/git/systemtap.git \
14 file://0001-staprun-stapbpf-don-t-support-installing-a-non-root.patch \ 14 file://0001-staprun-stapbpf-don-t-support-installing-a-non-root.patch \
15 file://0001-Fix-PR22551-by-updating-the-use-of-timers-for-the-4..patch \ 15 file://0001-Fix-PR22551-by-updating-the-use-of-timers-for-the-4..patch \
16 file://0001-Fixes-for-gcc-8.patch \ 16 file://0001-Fixes-for-gcc-8.patch \
17 file://0001-Use-sysroot-when-looking-for-the-System.map-file.patch \
18 file://0001-debuginfo-lookup-with-sysroot-case-do-not-remove-sys.patch \
19 file://0001-Make-sure-sysroot-paths-don-t-end-with-a-slash.patch \
20 file://0001-sysroot-fix-short-release-r-option-handling.patch \
21 file://0001-Delay-adding-sysroot-path-to-module-name-in-case-of-.patch \
22 file://0001-Added-a-couple-of-small-sysroot-fixes.patch \
23 file://0001-_stp_umodule_relocate-needs-target-file-path-not-hos.patch \
24 file://0001-sysroot-handle-symbolic-links-with-absolute-name-rel.patch \
25 file://0001-sysroot-fix-short-release-r-option-handling-follow-u.patch \
17 " 26 "
18 27
19COMPATIBLE_HOST = '(x86_64|i.86|powerpc|arm|aarch64|microblazeel|mips).*-linux' 28COMPATIBLE_HOST = '(x86_64|i.86|powerpc|arm|aarch64|microblazeel|mips).*-linux'
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-12-23 08:49:08 +0000