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glibc/sysdeps/arm
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Adhemerval Zanella 1e25112dc0 arm: Remove wrong ldr from _dl_start_user (BZ 31339) 
The commit 49d877a80b29d3002887b084eec6676d9f5fec18 (arm: Remove
_dl_skip_args usage) removed the _SKIP_ARGS literal, which was
previously loader to r4 on loader _start.  However, the cleanup did not
remove the following 'ldr r4, [sl, r4]' on _dl_start_user, used to check
to skip the arguments after ld self-relocations.

In my testing, the kernel initially set r4 to 0, which makes the
ldr instruction just read the _GLOBAL_OFFSET_TABLE_.  However, since r4
is a callee-saved register; a different runtime might not zero
initialize it and thus trigger an invalid memory access.

Checked on arm-linux-gnu.

Reported-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
2024-02-05 15:29:23 -03:00
..
armv6
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armv6t2
string: Use builtins for ffs and ffsll
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armv7
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be
arm: Fix softp-fp Implies (BZ #25635)
2020-03-06 09:53:24 -03:00
bits
Refer to C23 in place of C2X in glibc
2024-02-01 11:02:01 +00:00
include/bits
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le
arm: Fix softp-fp Implies (BZ #25635)
2020-03-06 09:53:24 -03:00
nofpu
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nptl
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sys
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__longjmp.S
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add_n.S
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addmul_1.S
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aeabi_assert.c
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aeabi_atexit.c
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aeabi_errno_addr.c
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aeabi_lcsts.c
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aeabi_localeconv.c
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aeabi_math.c
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aeabi_mb_cur_max.c
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aeabi_memclr.c
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aeabi_memcpy.c
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aeabi_memmove.c
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aeabi_memset.c
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aeabi_sighandlers.S
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aeabi_unwind_cpp_pr1.c
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arm-features.h
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arm-ifunc.h
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arm-mcount.S
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arm-unwind-resume.S
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atomic-machine.h
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backtrace.c
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bsd-_setjmp.S
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bsd-setjmp.S
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configure
configure: Use autoconf 2.71
2023-07-17 10:08:10 -04:00
configure.ac
grep: egrep -> grep -E, fgrep -> grep -F
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crti.S
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crtn.S
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dl-irel.h
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dl-lookupcfg.h
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dl-machine-rel.h
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dl-machine.h
arm: Remove wrong ldr from _dl_start_user (BZ 31339)
2024-02-05 15:29:23 -03:00
dl-tls.h
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dl-tlsdesc.h
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dl-tlsdesc.S
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dl-trampoline.S
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elf-initfini.h
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fclrexcpt.c
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fedisblxcpt.c
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feenablxcpt.c
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fegetenv.c
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fegetexcept.c
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fegetmode.c
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fegetround.c
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feholdexcpt.c
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fenv_private.h
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fesetenv.c
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fesetexcept.c
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fesetmode.c
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fesetround.c
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feupdateenv.c
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fgetexcptflg.c
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find_exidx.c
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fix-fp-int-convert-overflow.h
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fpu_control.h
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fraiseexcpt.c
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framestate.c
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fsetexcptflg.c
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ftestexcept.c
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gcc-compat.h
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gccframe.h
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get-rounding-mode.h
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Implies
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jmpbuf-unwind.h
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ldbl-classify-compat.h
Move LDBL_CLASSIFY_COMPAT to its own header.
2018-02-01 21:01:00 +00:00
ldsodefs.h
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libc-aeabi_read_tp.S
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libc-tls.c
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libm-test-ulps
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libm-test-ulps-name
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linkmap.h
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machine-gmon.h
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Makefile
configure: Use -Wno-ignored-attributes if compiler warns about multiple aliases
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math-tests-trap.h
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math-use-builtins-sqrt.h
arm: Use sqrt{f} builtin
2020-06-22 11:09:50 -03:00
memcpy.S
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memmove.S
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memset.S
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pointer_guard.h
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preconfigure
configure: Use autoconf 2.71
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preconfigure.ac
sysdeps: arm: Fix preconfigure script for ARMv8/v9 targets [BZ #29698]
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rt-aeabi_unwind_cpp_pr1.c
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rt-arm-unwind-resume.S
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rtld-global-offsets.sym
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setfpucw.c
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setjmp.S
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sfp-machine.h
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sotruss-lib.c
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stackinfo.h
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stap-probe-machine.h
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start.S
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static-stubs.c
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strlen.S
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sub_n.S
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submul_1.S
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sysdep.h
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test-fpucw.c
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tlsdesc.c
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tlsdesc.sym
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tst-armtlsdescextlazy.c
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tst-armtlsdescextlazymod.c
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tst-armtlsdescextnow.c
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tst-armtlsdescextnowmod.c
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tst-armtlsdescloc.c
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tst-armtlsdesclocmod.c
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tst-audit.h
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unwind-arch.h
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unwind-dw2-fde-glibc.c
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unwind-pe.c
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unwind-resume.c
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unwind-resume.h
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unwind.h
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