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glibc/sysdeps/arm
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Adhemerval Zanella 63295e4fda arm: Remove wrong ldr from _dl_start_user (BZ 31339) 
The commit 49d877a80b (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>
(cherry picked from commit 1e25112dc0)
2024-02-05 15:43:39 -03:00
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armv6 Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
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aeabi_assert.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
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arm-features.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
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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 2022-06-05 12:09:02 -07:00
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dl-machine-rel.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
dl-machine.h arm: Remove wrong ldr from _dl_start_user (BZ 31339) 2024-02-05 15:43:39 -03:00
dl-tls.h Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
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preconfigure configure: Use autoconf 2.71 2023-07-17 10:08:10 -04:00
preconfigure.ac sysdeps: arm: Fix preconfigure script for ARMv8/v9 targets [BZ #29698] 2022-10-20 11:23:05 -03:00
rt-aeabi_unwind_cpp_pr1.c
rt-arm-unwind-resume.S
rtld-global-offsets.sym
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test-fpucw.c
tlsdesc.c Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
tlsdesc.sym
tst-armtlsdescextlazy.c
tst-armtlsdescextlazymod.c
tst-armtlsdescextnow.c
tst-armtlsdescextnowmod.c
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