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base-filesystem: do not attempt to create a /lib64 -> /usr/lib/<tuple> symlink

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In multi-arch distributions (debian and derivatives) multiarch tuples under
/usr/lib are used, such as /usr/lib/x86_64-linux-gnu/ but the /lib64 symlink
should never point there, it should always point to /usr/lib64, as that's
how they are set up by distribution-specific tools.

https://packages.debian.org/bookworm/amd64/libc6-i386/filelist
https://packages.debian.org/bookworm/mipsel/libc6-mips64/filelist
https://salsa.debian.org/md/usrmerge/-/blob/master/convert-usrmerge?ref_type=heads#L295
https://salsa.debian.org/md/usrmerge/-/blob/master/convert-usrmerge?ref_type=heads#L517
http://bugs.debian.org/1076491

Fixes https://github.com/systemd/systemd/issues/33919
This commit is contained in:
Luca Boccassi 2024-08-04 00:00:05 +01:00 committed by Yu Watanabe
parent ad723ca3e5
commit b75c13731e
1 changed files with 8 additions and 16 deletions
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24
src/shared/base-filesystem.c
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@ -56,8 +56,7 @@ static const BaseFilesystem table[] = {
/* aarch64 ELF ABI actually says dynamic loader is in /lib/, but Fedora puts it in /lib64/ anyway and
* just symlinks /lib/ld-linux-aarch64.so.1 to ../lib64/ld-linux-aarch64.so.1. For this to work
* correctly, /lib64/ must be symlinked to /usr/lib64/. */
{ "lib64", 0, "usr/lib/"LIB_ARCH_TUPLE"\0"
"usr/lib64\0"
{ "lib64", 0, "usr/lib64\0"
"usr/lib\0", "ld-linux-aarch64.so.1" },
# define KNOW_LIB64_DIRS 1
#elif defined(__alpha__)
@ -66,24 +65,20 @@ static const BaseFilesystem table[] = {
/* No /lib64 on arm. The linker is /lib/ld-linux-armhf.so.3. */
# define KNOW_LIB64_DIRS 1
#elif defined(__i386__) || defined(__x86_64__)
{ "lib64", 0, "usr/lib/"LIB_ARCH_TUPLE"\0"
"usr/lib64\0"
{ "lib64", 0, "usr/lib64\0"
"usr/lib\0", "ld-linux-x86-64.so.2" },
# define KNOW_LIB64_DIRS 1
#elif defined(__ia64__)
#elif defined(__loongarch_lp64)
# define KNOW_LIB64_DIRS 1
# if defined(__loongarch_double_float)
{ "lib64", 0, "usr/lib/"LIB_ARCH_TUPLE"\0"
"usr/lib64\0"
{ "lib64", 0, "usr/lib64\0"
"usr/lib\0", "ld-linux-loongarch-lp64d.so.1" },
# elif defined(__loongarch_single_float)
{ "lib64", 0, "usr/lib/"LIB_ARCH_TUPLE"\0"
"usr/lib64\0"
{ "lib64", 0, "usr/lib64\0"
"usr/lib\0", "ld-linux-loongarch-lp64f.so.1" },
# elif defined(__loongarch_soft_float)
{ "lib64", 0, "usr/lib/"LIB_ARCH_TUPLE"\0"
"usr/lib64\0"
{ "lib64", 0, "usr/lib64\0"
"usr/lib\0", "ld-linux-loongarch-lp64s.so.1" },
# else
# error "Unknown LoongArch ABI"
@ -100,8 +95,7 @@ static const BaseFilesystem table[] = {
# endif
#elif defined(__powerpc__)
# if defined(__PPC64__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
{ "lib64", 0, "usr/lib/"LIB_ARCH_TUPLE"\0"
"usr/lib64\0"
{ "lib64", 0, "usr/lib64\0"
"usr/lib\0", "ld64.so.2" },
# define KNOW_LIB64_DIRS 1
# elif defined(__powerpc64__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
@ -113,16 +107,14 @@ static const BaseFilesystem table[] = {
# if __riscv_xlen == 32
# elif __riscv_xlen == 64
/* Same situation as for aarch64 */
{ "lib64", 0, "usr/lib/"LIB_ARCH_TUPLE"\0"
"usr/lib64\0"
{ "lib64", 0, "usr/lib64\0"
"usr/lib\0", "ld-linux-riscv64-lp64d.so.1" },
# define KNOW_LIB64_DIRS 1
# else
# error "Unknown RISC-V ABI"
# endif
#elif defined(__s390x__)
{ "lib64", 0, "usr/lib/"LIB_ARCH_TUPLE"\0"
"usr/lib64\0"
{ "lib64", 0, "usr/lib64\0"
"usr/lib\0", "ld-lsb-s390x.so.3" },
# define KNOW_LIB64_DIRS 1
#elif defined(__s390__)