https://sourceware.org/bugzilla/show_bug.cgi?id=16698
Bug ID: 16698
Summary: BFD (GNU Binutils) 2.24 assertion fail
elf32-arm.c:12387
Product: binutils
Version: 2.24
Status: NEW
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: maillist-gdb at barfooze dot de
when building git, util-linux, or lzo with the following CFLAGS:
-fdata-sections -ffunction-sections -Os -g0
-fno-unwind-tables -fno-asynchronous-unwind-tables -Wa,--noexecstack -ftree-dce
and the following LDFLAGS:
-s -Wl,--gc-sections -Wl,-z,relro,-z,now
the assertion in the title will be triggered.
example:
/root:/src/build/git/git-1.8.4$ gcc -fdata-sections -ffunction-sections -Os
-g0
-fno-unwind-tables -fno-asynchronous-unwind-tables -Wa,--noexecstack -ftree-dce
-I. -DNO_GETTEXT -DHAVE_PATHS_H -DHAVE_DEV_TTY -DSHA1_HEADER='<openssl/sha.h>'
-DNO_STRLCPY -DUSE_WILDMATCH -DNO_MKSTEMPS -DSHELL_PATH='"/bin/sh"' -o
git-cred
ential-store -s -Wl,--gc-sections -Wl,-z,relro,-z,now credential-store.o
libgit
.a xdiff/lib.a -lz -lcrypto -lpthread
/bin/ld: BFD (GNU Binutils) 2.24 assertion fail elf32-arm.c:12387
/bin/ld: BFD (GNU Binutils) 2.24 assertion fail elf32-arm.c:12387
collect2: error: ld returned 1 exit statusbin/ld: BFD (GNU Binutils) 2.24
assertion fail elf32-arm.c:12387
collect2: error: ld returned 1 exit status
some tests revealed that it's the combination of -s and -Wl,--gc-sections that
causes the hiccup, when dynamic linking is involved. maybe it's needed that
these flags have been applied to both the dso's and the program involved.
i've failed to produce a proper testcase.
the issue was not existent in binutils 2.22
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