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5a274db4ea
glibc/sysdeps/i386
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H.J. Lu 5a274db4ea i386: Use ENTRY and END in start.S [BZ #23606] 
Wrapping the _start function with ENTRY and END to insert ENDBR32 at
function entry when CET is enabled.  Since _start now includes CFI,
without "cfi_undefined (eip)", unwinder may not terminate at _start
and we will get

Program received signal SIGSEGV, Segmentation fault.
0xf7dc661e in ?? () from /lib/libgcc_s.so.1
Missing separate debuginfos, use: dnf debuginfo-install libgcc-8.2.1-3.0.fc28.i686
(gdb) bt
 #0  0xf7dc661e in ?? () from /lib/libgcc_s.so.1
 #1  0xf7dc7c18 in _Unwind_Backtrace () from /lib/libgcc_s.so.1
 #2  0xf7f0d809 in __GI___backtrace (array=array@entry=0xffffc7d0,
    size=size@entry=20) at ../sysdeps/i386/backtrace.c:127
 #3  0x08049254 in compare (p1=p1@entry=0xffffcad0, p2=p2@entry=0xffffcad4)
    at backtrace-tst.c:12
 #4  0xf7e2a28c in msort_with_tmp (p=p@entry=0xffffca5c, b=b@entry=0xffffcad0,
    n=n@entry=2) at msort.c:65
 #5  0xf7e29f64 in msort_with_tmp (n=2, b=0xffffcad0, p=0xffffca5c)
    at msort.c:53
 #6  msort_with_tmp (p=p@entry=0xffffca5c, b=b@entry=0xffffcad0, n=n@entry=5)
    at msort.c:53
 #7  0xf7e29f64 in msort_with_tmp (n=5, b=0xffffcad0, p=0xffffca5c)
    at msort.c:53
 #8  msort_with_tmp (p=p@entry=0xffffca5c, b=b@entry=0xffffcad0, n=n@entry=10)
    at msort.c:53
 #9  0xf7e29f64 in msort_with_tmp (n=10, b=0xffffcad0, p=0xffffca5c)
    at msort.c:53
 #10 msort_with_tmp (p=p@entry=0xffffca5c, b=b@entry=0xffffcad0, n=n@entry=20)
    at msort.c:53
 #11 0xf7e2a5b6 in msort_with_tmp (n=20, b=0xffffcad0, p=0xffffca5c)
    at msort.c:297
 #12 __GI___qsort_r (b=b@entry=0xffffcad0, n=n@entry=20, s=s@entry=4,
    cmp=cmp@entry=0x8049230 <compare>, arg=arg@entry=0x0) at msort.c:297
 #13 0xf7e2a84d in __GI_qsort (b=b@entry=0xffffcad0, n=n@entry=20, s=s@entry=4,
    cmp=cmp@entry=0x8049230 <compare>) at msort.c:308
 #14 0x080490f6 in main (argc=2, argv=0xffffcbd4) at backtrace-tst.c:39

FAIL: debug/backtrace-tst

	[BZ #23606]
	* sysdeps/i386/start.S: Include <sysdep.h>
	(_start): Use ENTRY/END to insert ENDBR32 at entry when CET is
	enabled.  Add cfi_undefined (eip).

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
2018-09-12 08:41:26 -07:00
..
fpu Add new exp and exp2 implementations 2018-09-05 16:22:00 +01:00
htl hurd: Bump remaining LGPL2+ htl licences to LGPL 2.1+ 2018-04-02 16:37:36 +02:00
i586 Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
i686 x86: Don't include <init-arch.h> in assembly codes 2018-08-03 08:05:00 -07:00
i786 Also applying directories. 1999-01-24 10:39:22 +00:00
nptl x86: Rename __glibc_reserved2 to ssp_base in tcbhead_t 2018-07-25 04:39:39 -07:00
sys Drop fpregset unused symbol exposition 2018-04-20 01:27:13 +02:00
____longjmp_chk.S Add sigstack handling to Linux ____longjmp_chk on i386. 2009-07-30 21:50:14 -07:00
__longjmp.S x86: Support shadow stack pointer in setjmp/longjmp 2018-07-14 05:59:53 -07:00
abort-instr.h update from main archive 961220 1996-12-21 04:13:58 +00:00
add_n.S i386: Add _CET_ENDBR to indirect jump targets in add_n.S/sub_n.S 2018-07-17 16:11:44 -07:00
addmul_1.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
asm-syntax.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
atomic-machine.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
backtrace.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
bcopy.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
bsd-_setjmp.S x86: Support shadow stack pointer in setjmp/longjmp 2018-07-14 05:59:53 -07:00
bsd-setjmp.S x86: Support shadow stack pointer in setjmp/longjmp 2018-07-14 05:59:53 -07:00
bzero.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
cacheinfo.c Move sysdeps/x86_64/cacheinfo.c to sysdeps/x86 2016-05-08 08:49:18 -07:00
configure Add --enable-static-pie configure option to build static PIE [BZ #19574] 2017-12-15 17:12:14 -08:00
configure.ac Add --enable-static-pie configure option to build static PIE [BZ #19574] 2017-12-15 17:12:14 -08:00
crti.S x86: Add _CET_ENDBR to functions in crti.S 2018-07-17 16:05:18 -07:00
crtn.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
dl-cet.c x86: Support IBT and SHSTK in Intel CET [BZ #21598] 2018-07-16 14:08:27 -07:00
dl-irel.h [BZ #20271] Add newlines in __libc_fatal calls. 2018-08-31 18:04:32 -07:00
dl-lookupcfg.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
dl-machine.h elf: Unify symbol address run-time calculation [BZ #19818] 2018-04-04 23:09:37 +01:00
dl-procinfo.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
dl-tls.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
dl-tlsdesc.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
dl-tlsdesc.S x86: Add _CET_ENDBR to functions in dl-tlsdesc.S 2018-07-17 16:07:17 -07:00
dl-trampoline.S x86: Support IBT and SHSTK in Intel CET [BZ #21598] 2018-07-16 14:08:27 -07:00
ffs.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
gccframe.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
gmp-mparam.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
htonl.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
htons.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
i386-mcount.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Implies Add float128 support for x86_64, x86. 2017-06-26 22:02:24 +00:00
init-arch.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ldbl2mpn.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
link-defines.sym Preserve bound registers for pointer pass/return 2015-07-09 06:50:12 -07:00
lshift.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Makefile math: Set 387 and SSE2 rounding mode for tgamma on i386 [BZ #23253] 2018-06-21 08:04:29 +02:00
malloc-alignment.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memchr.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memcmp.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memcopy.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memcpy_chk.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memcpy.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memmove_chk.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memmove.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
mempcpy_chk.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
mempcpy.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
memset_chk.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memset.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
memusage.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
mp_clz_tab.c Update. 2002-03-14 20:48:50 +00:00
mul_1.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
preconfigure Move base_machine and machine settings from configure.ac to sysdeps preconfigure fragments. 2014-06-25 17:52:56 +00:00
pthread_spin_trylock.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
rawmemchr.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
rshift.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
setfpucw.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
setjmp.S x86: Support shadow stack pointer in setjmp/longjmp 2018-07-14 05:59:53 -07:00
stackguard-macros.h BZ #15754: CVE-2013-4788 2013-09-23 00:52:09 -04:00
stackinfo.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
start.S i386: Use ENTRY and END in start.S [BZ #23606] 2018-09-12 08:41:26 -07:00
stpcpy.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
stpncpy.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strcat.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strchr.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strchrnul.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strcspn.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
string-inlines.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strlen.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strlen.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strpbrk.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strrchr.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
strspn.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
sub_n.S i386: Add _CET_ENDBR to indirect jump targets in add_n.S/sub_n.S 2018-07-17 16:11:44 -07:00
submul_1.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
symbol-hacks.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tls-macros.h i386: Fix build by GCC 5.0 2014-12-30 11:37:41 -08:00
tlsdesc.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tlsdesc.sym Introduce TLS descriptors for i386 and x86_64. 2008-05-13 05:41:30 +00:00
tst-audit3.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-audit3.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-audit.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-auditmod3a.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-auditmod3b.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-ld-sse-use.sh Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
tst-stack-align.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Versions Move __fentry__ version definition to sysdeps/{i386,x86_64} 2018-08-10 09:07:44 +02:00