https://sourceware.org/bugzilla/show_bug.cgi?id=31956
--- Comment #20 from Sourceware Commits <cvs-commit at gcc dot gnu.org> --- The binutils-2_43-branch branch has been updated by Alan Modra <amo...@sourceware.org>: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=2fbb863136724cfef2fc2f4c2b7f51be36f132c7 commit 2fbb863136724cfef2fc2f4c2b7f51be36f132c7 Author: H.J. Lu <hjl.to...@gmail.com> Date: Fri Aug 2 19:52:00 2024 -0700 LTO: Restore the wrapper symbol check for standard function Call unwrap_hash_lookup to restore the wrapper symbol check for standard function since reference to standard function may not show up in LTO symbol table: [hjl@gnu-tgl-3 pr31956-3]$ nm foo.o 00000000 T main U __real_malloc 00000000 T __wrap_malloc [hjl@gnu-tgl-3 pr31956-3]$ lto-dump -list foo.o Type Visibility Size Name function default 0 malloc function default 0 __real_malloc function default 3 main function default 5 __wrap_malloc [hjl@gnu-tgl-3 pr31956-3]$ make gcc -O2 -flto -Wall -c -o foo.o foo.c gcc -Wl,--wrap=malloc -O2 -flto -Wall -o x foo.o /usr/local/bin/ld: /tmp/ccsPW0a9.ltrans0.ltrans.o: in function `main': <artificial>:(.text.startup+0xa): undefined reference to `__wrap_malloc' collect2: error: ld returned 1 exit status make: *** [Makefile:22: x] Error 1 [hjl@gnu-tgl-3 pr31956-3]$ Also add a test to verify that the unused wrapper is removed. PR ld/31956 * plugin.c (get_symbols): Restore the wrapper symbol check for standard function. * testsuite/ld-plugin/lto.exp: Run the malloc test and the unused test. * testsuite/ld-plugin/pr31956c.c: New file. * testsuite/ld-plugin/pr31956d.c: New file. * testsuite/ld-plugin/pr31956d.d: New file. Signed-off-by: H.J. Lu <hjl.to...@gmail.com> (cherry picked from commit 3221c470f0765886a49a1a3d2ec602e4104a377b) -- You are receiving this mail because: You are on the CC list for the bug.
