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[tor-bugs] #27812 [Core Tor/Tor]: memwipe + arm, error: implicit declaration, error: nested extern



#27812: memwipe + arm, error: implicit declaration, error: nested extern
--------------------------+------------------------------
 Reporter:  chadmiller    |          Owner:  (none)
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Component:  Core Tor/Tor
  Version:  Tor: 0.3.4.8  |       Severity:  Normal
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+------------------------------
 Somewhere between 0.3.3 and 0.3.4, a compilation error was introduced on
 arm achhitectures+compilers.  On armhf and arm64,

 {{{
 gcc -DHAVE_CONFIG_H -I.  -I./src/ext -Isrc/ext -I./src/ext/trunnel
 -I./src/trunnel -I./src/common -Isrc/common -I./src/ext/trunnel
 -I./src/trunnel -I./src/or -Isrc/or -DSHARE_DATADIR="\"/share\""
 -DLOCALSTATEDIR="\"/var\"" -DBINDIR="\"/bin\"" -I./src -DTOR_UNIT_TESTS
 -DHAVE_MODULE_DIRAUTH=1 -I./src/common      -g -O2 -U_FORTIFY_SOURCE
 -D_FORTIFY_SOURCE=2 -fstack-protector-all -Wstack-protector --param ssp-
 buffer-size=1 -fPIE -fasynchronous-unwind-tables -Wall -fno-strict-
 aliasing -Waddress -Warray-bounds -Wdate-time -Wdouble-promotion -Wextra
 -Wfloat-conversion -Winit-self -Wlogical-op -Wmissing-field-initializers
 -Wmissing-format-attribute -Wmissing-noreturn -Wnormalized=nfkc
 -Woverlength-strings -Woverride-init -Wshadow -Wshift-count-negative
 -Wshift-count-overflow -Wsizeof-array-argument -Wstrict-overflow=1
 -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wswitch-bool
 -Wsync-nand -Wtrampolines -Wunused-but-set-parameter -Wunused-but-set-
 variable -Wunused-local-typedefs -Wvariadic-macros -W -Wfloat-equal
 -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-
 strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat=2 -Wwrite-
 strings -Wnested-externs -Wbad-function-cast -Wswitch-enum -Waggregate-
 return -Wpacked -Wunused -Wunused-parameter  -Wold-style-definition
 -Wmissing-declarations -Werror -MT src/common
 /src_common_libor_crypto_testing_a-compress.o -MD -MP -MF src/common/.deps
 /src_common_libor_crypto_testing_a-compress.Tpo -c -o src/common
 /src_common_libor_crypto_testing_a-compress.o `test -f
 'src/common/compress.c' || echo './'`src/common/compress.c
 src/common/aes.c: In function ‘aes_cipher_free_’:
 src/common/aes.c:339:3: error: implicit declaration of function ‘memwipe’
 [-Werror=implicit-function-declaration]
    memwipe(cipher, 0, sizeof(aes_cnt_cipher_t));
    ^
 src/common/aes.c:339:3: error: nested extern declaration of ‘memwipe’
 [-Werror=nested-externs]
 }}}



 https://launchpadlibrarian.net/389494248
 /buildlog_snap_ubuntu_xenial_arm64_tor-middle-relay_BUILDING.txt.gz

 https://launchpadlibrarian.net/389493997
 /buildlog_snap_ubuntu_xenial_armhf_tor-middle-relay_BUILDING.txt.gz

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27812>
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