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uClibc: When DEBUG=yes in config/options, allows creation of the file

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/dlsym.log which contains all the symbols from libraries that
are accessed via dlopen()/dlsym()/dlclose() procedure (and so
the symbols are not directly accessible from the resulting binary).

Intended use is to create a file which can be sort|uniq'd into an
alphabetically-ordered list, so that libstrip can be used on those
libraries that are used by programs that use dlsym(), without
stripping out required symbols.
This commit is contained in:
Stephan Raue 2009-08-28 22:47:45 +02:00
parent 543075c36a
commit 7468fd1a59
1 changed files with 26 additions and 0 deletions
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26
packages/toolchain/devel/uClibc/patches/30_dlsym-verbose-dev.diff Normal file
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@ -0,0 +1,26 @@
* When DEBUG=yes in config/options, allows creation of the file
/dlsym.log which contains all the symbols from libraries that
are accessed via dlopen()/dlsym()/dlclose() procedure (and so
the symbols are not directly accessible from the resulting binary).
Intended use is to create a file which can be sort|uniq'd into an
alphabetically-ordered list, so that libstrip can be used on those
libraries that are used by programs that use dlsym(), without
stripping out required symbols.
--- uClibc/ldso/libdl/libdl.c 2007-02-05 03:01:12.000000000 +0900
+++ uClibc/ldso/libdl/libdl.c 2007-02-05 03:05:10.000000000 +0900
@@ -406,6 +406,13 @@
#else
const char *name2 = name;
#endif
+#ifdef _DLSYM_TRACE_NAME
+ FILE *log = fopen("/var/log/dlsym.log", "a");
+
+ fprintf(log, "%s\n", name);
+ fflush(log);
+ fclose(log);
+#endif
handle = (struct dyn_elf *) vhandle;
/* First of all verify that we have a real handle