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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
Added $(objpfx)tst-dlinfo-phdr: $(libdl) to dlfcn/Makefile since
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
we still need $(libdl) in RHEL8.
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
commit d056c212130280c0a54d9a4f72170ec621b70ce5
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
Author: Florian Weimer <fweimer@redhat.com>
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
Date: Fri Apr 29 17:00:53 2022 +0200
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
dlfcn: Implement the RTLD_DI_PHDR request type for dlinfo
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
The information is theoretically available via dl_iterate_phdr as
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
well, but that approach is very slow if there are many shared
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
objects.
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
Tested-by: Carlos O'Donell <carlos@rehdat.com>
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
Conflicts:
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
dlfcn/dlinfo.c
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
(missing move into libc)
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
diff --git a/dlfcn/Makefile b/dlfcn/Makefile
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
index 0b213b7d9fefcdc9..65cee5b54d891a24 100644
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
--- a/dlfcn/Makefile
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+++ b/dlfcn/Makefile
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
@@ -59,6 +59,10 @@ tststatic3-ENV = $(tststatic-ENV)
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
tststatic4-ENV = $(tststatic-ENV)
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
tststatic5-ENV = $(tststatic-ENV)
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+tests-internal += \
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ tst-dlinfo-phdr \
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ # tests-internal
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
ifneq (,$(CXX))
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
modules-names += bug-atexit3-lib
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
else
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
@@ -152,3 +156,5 @@ $(objpfx)bug-dl-leaf-lib-cb.so: $(objpfx)bug-dl-leaf-lib.so
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
$(objpfx)tst-rec-dlopen: $(libdl)
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
$(objpfx)tst-rec-dlopen.out: $(objpfx)moddummy1.so $(objpfx)moddummy2.so
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+$(objpfx)tst-dlinfo-phdr: $(libdl)
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
diff --git a/dlfcn/dlfcn.h b/dlfcn/dlfcn.h
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
index 0921fd724cf7b785..61c4f59bea4eb7ac 100644
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
--- a/dlfcn/dlfcn.h
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+++ b/dlfcn/dlfcn.h
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
@@ -162,7 +162,12 @@ enum
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
segment, or if the calling thread has not allocated a block for it. */
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
RTLD_DI_TLS_DATA = 10,
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
- RTLD_DI_MAX = 10
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ /* Treat ARG as const ElfW(Phdr) **, and store the address of the
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ program header array at that location. The dlinfo call returns
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ the number of program headers in the array. */
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ RTLD_DI_PHDR = 11,
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ RTLD_DI_MAX = 11
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
};
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
diff --git a/dlfcn/dlinfo.c b/dlfcn/dlinfo.c
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
index 23ef3f57ca41afdf..50cd9af17a56f990 100644
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
--- a/dlfcn/dlinfo.c
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+++ b/dlfcn/dlinfo.c
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
@@ -38,6 +38,10 @@ struct dlinfo_args
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
void *handle;
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
int request;
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
void *arg;
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ /* This is the value that is returned from dlinfo if no error is
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ signaled. */
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ int result;
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
};
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
static void
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
@@ -50,6 +54,7 @@ dlinfo_doit (void *argsblock)
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
{
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
case RTLD_DI_CONFIGADDR:
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
default:
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ args->result = -1;
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
_dl_signal_error (0, NULL, NULL, N_("unsupported dlinfo request"));
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
break;
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
@@ -85,6 +90,11 @@ dlinfo_doit (void *argsblock)
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
*(void **) args->arg = data;
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
break;
|
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
}
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ case RTLD_DI_PHDR:
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ *(const ElfW(Phdr) **) args->arg = l->l_phdr;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ args->result = l->l_phnum;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ break;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
}
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
}
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
@@ -97,7 +107,8 @@ __dlinfo (void *handle, int request, void *arg)
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
# endif
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
struct dlinfo_args args = { handle, request, arg };
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
- return _dlerror_run (&dlinfo_doit, &args) ? -1 : 0;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ _dlerror_run (&dlinfo_doit, &args);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ return args.result;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
}
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
# ifdef SHARED
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
strong_alias (__dlinfo, dlinfo)
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
diff --git a/dlfcn/tst-dlinfo-phdr.c b/dlfcn/tst-dlinfo-phdr.c
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
new file mode 100644
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
index 0000000000000000..a15a7d48ebd3b976
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
--- /dev/null
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+++ b/dlfcn/tst-dlinfo-phdr.c
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
@@ -0,0 +1,125 @@
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+/* Test for dlinfo (RTLD_DI_PHDR).
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ Copyright (C) 2022 Free Software Foundation, Inc.
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ This file is part of the GNU C Library.
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ modify it under the terms of the GNU Lesser General Public
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ License as published by the Free Software Foundation; either
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ version 2.1 of the License, or (at your option) any later version.
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ Lesser General Public License for more details.
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ You should have received a copy of the GNU Lesser General Public
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ License along with the GNU C Library; if not, see
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ <https://www.gnu.org/licenses/>. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+#include <dlfcn.h>
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+#include <link.h>
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+#include <stdbool.h>
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+#include <stdio.h>
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+#include <string.h>
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+#include <sys/auxv.h>
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+#include <support/check.h>
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+#include <support/xdlfcn.h>
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+/* Used to verify that the program header array appears as expected
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ among the dl_iterate_phdr callback invocations. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+struct dlip_callback_args
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+{
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ struct link_map *l; /* l->l_addr is used to find the object. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ const ElfW(Phdr) *phdr; /* Expected program header pointed. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ int phnum; /* Expected program header count. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ bool found; /* True if l->l_addr has been found. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+};
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+static int
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+dlip_callback (struct dl_phdr_info *dlpi, size_t size, void *closure)
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+{
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_COMPARE (sizeof (*dlpi), size);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ struct dlip_callback_args *args = closure;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ if (dlpi->dlpi_addr == args->l->l_addr)
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ {
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_VERIFY (!args->found);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ args->found = true;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_VERIFY (args->phdr == dlpi->dlpi_phdr);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_COMPARE (args->phnum, dlpi->dlpi_phnum);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ }
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ return 0;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+}
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+static int
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+do_test (void)
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+{
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ /* Avoid a copy relocation. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ struct r_debug *debug = xdlsym (RTLD_DEFAULT, "_r_debug");
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ struct link_map *l = (struct link_map *) debug->r_map;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_VERIFY_EXIT (l != NULL);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ do
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ {
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ printf ("info: checking link map %p (%p) for \"%s\"\n",
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ l, l->l_phdr, l->l_name);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ /* Cause dlerror () to return an error message. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ dlsym (RTLD_DEFAULT, "does-not-exist");
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ /* Use the extension that link maps are valid dlopen handles. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ const ElfW(Phdr) *phdr;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ int phnum = dlinfo (l, RTLD_DI_PHDR, &phdr);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_VERIFY (phnum >= 0);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ /* Verify that the error message has been cleared. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_COMPARE_STRING (dlerror (), NULL);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_VERIFY (phdr == l->l_phdr);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_COMPARE (phnum, l->l_phnum);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ /* Check that we can find PT_DYNAMIC among the array. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ {
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ bool dynamic_found = false;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ for (int i = 0; i < phnum; ++i)
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ if (phdr[i].p_type == PT_DYNAMIC)
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ {
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ dynamic_found = true;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_COMPARE ((ElfW(Addr)) l->l_ld, l->l_addr + phdr[i].p_vaddr);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ }
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_VERIFY (dynamic_found);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ }
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ /* Check that dl_iterate_phdr finds the link map with the same
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ program headers. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ {
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ struct dlip_callback_args args =
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ {
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ .l = l,
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ .phdr = phdr,
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ .phnum = phnum,
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ .found = false,
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ };
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_COMPARE (dl_iterate_phdr (dlip_callback, &args), 0);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_VERIFY (args.found);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ }
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ if (l->l_prev == NULL)
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ {
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ /* This is the executable, so the information is also
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ available via getauxval. */
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_COMPARE_STRING (l->l_name, "");
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_VERIFY (phdr == (const ElfW(Phdr) *) getauxval (AT_PHDR));
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ TEST_COMPARE (phnum, getauxval (AT_PHNUM));
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ }
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ l = l->l_next;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ }
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ while (l != NULL);
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+ return 0;
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+}
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+#include <support/test-driver.c>
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
diff --git a/manual/dynlink.texi b/manual/dynlink.texi
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
index dbf3de11769d8e57..7dcac64889e389fd 100644
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
--- a/manual/dynlink.texi
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+++ b/manual/dynlink.texi
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
@@ -30,9 +30,9 @@ location @var{arg}, based on @var{request}. The @var{handle} argument
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
must be a pointer returned by @code{dlopen} or @code{dlmopen}; it must
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
not have been closed by @code{dlclose}.
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
-On success, @code{dlinfo} returns 0. If there is an error, the function
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
-returns @math{-1}, and @code{dlerror} can be used to obtain a
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
-corresponding error message.
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+On success, @code{dlinfo} returns 0 for most request types; exceptions
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+are noted below. If there is an error, the function returns @math{-1},
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
+and @code{dlerror} can be used to obtain a corresponding error message.
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
The following operations are defined for use with @var{request}:
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
@@ -84,6 +84,15 @@ This request writes the TLS module ID for the shared object @var{handle}
|
|
![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
to @code{*@var{arg}}. The argument @var{arg} must be the address of an
|
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![](https://seccdn.libravatar.org/avatar/fcc0873d860f7e6944b3abea5b6b447609288dcd55d37b92d3e9e9b1a1e81f06?s=16&d=retro) |
4c1956 |
object of type @code{size_t}. The module ID is zero if the object
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4c1956 |
does not have an associated TLS block.
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4c1956 |
+
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4c1956 |
+@item RTLD_DI_PHDR
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4c1956 |
+This request writes the address of the program header array to
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4c1956 |
+@code{*@var{arg}}. The argument @var{arg} must be the address of an
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4c1956 |
+object of type @code{const ElfW(Phdr) *} (that is,
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4c1956 |
+@code{const Elf32_Phdr *} or @code{const Elf64_Phdr *}, as appropriate
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4c1956 |
+for the current architecture). For this request, the value returned by
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4c1956 |
+@code{dlinfo} is the number of program headers in the program header
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4c1956 |
+array.
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4c1956 |
@end vtable
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4c1956 |
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4c1956 |
The @code{dlinfo} function is a GNU extension.
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