These instructions are for 64-bit load/store. On ARMv5TE, the CPU
requires addresses to be aligned to 64-bit. When misaligned, behavior is
undefined (effectively either loads the same word twice on LDRD, or
corrupts surrounding memory on STRD).
On ARMv6 and newer, unaligned access is safe.
Removing these instructions for ARMv5TE is necessary, because GCC
ignores alignment information in pointers and does unsafe optimizations
that have shown up as bugs in various places.
This patch was originally added more than 11 years ago in commit b050f87d13,
but got lost 6 years ago, when gcc 9.1 was added in 88c07c6552.
This primarily affects the kirkwood and ixp4xx targets
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Remove upstreamed patches:
- 020-MIPS-Include-missing-mips16.S-in-libgcc-lib1funcs.S.patch
- 021-Reuse-scratch-registers-generated-by-LRA.patch
All other patches are automatically refreshed.
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/18891
Signed-off-by: Robert Marko <robimarko@gmail.com>
During the build of perl, the following ICE was reported in
https://github.com/openwrt/packages/issues/24565 when targeting PowerPC:
during RTL pass: reload
blocksort.c: In function 'mainSort.isra':
blocksort.c:1011:1: internal compiler error: in patch_jump_insn, at cfgrtl.cc:1303
1011 | }
| ^
0x7d49cee29d8f __libc_start_call_main
../sysdeps/nptl/libc_start_call_main.h:58
0x7d49cee29e3f __libc_start_main_impl
../csu/libc-start.c:392
Please submit a full bug report, with preprocessed source (by using -freport-bug).
Please include the complete backtrace with any bug report.
See <http://bugs.openwrt.org/> for instructions.
The same issue also caused the CI failures in
https://github.com/openwrt/packages/pull/26501.
The issue only occurs with GCC 14.2.0, but not with the head of the
releases/gcc-14 maintenance branch; a bisect found that this patch fixes
it.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Link: https://github.com/openwrt/openwrt/pull/18797
Signed-off-by: Robert Marko <robimarko@gmail.com>
Backport patch from upstream GCC 14 branch which fixes linking with
MIPS16 on the pistachio target.
This fixes the following link problem:
```
/builder/shared-workdir/build/staging_dir/toolchain-mipsel_24kc+24kf_gcc-14.2.0_musl/lib/gcc/mipsel-openwrt-linux-musl/14.2.0/../../../../mipsel-openwrt-linux-musl/bin/ld.bfd: ./liblua.so: undefined reference to `__mips16_ledf2'
/builder/shared-workdir/build/staging_dir/toolchain-mipsel_24kc+24kf_gcc-14.2.0_musl/lib/gcc/mipsel-openwrt-linux-musl/14.2.0/../../../../mipsel-openwrt-linux-musl/bin/ld.bfd: ./liblua.so: undefined reference to `__mips16_call_stub_df_2'
/builder/shared-workdir/build/staging_dir/toolchain-mipsel_24kc+24kf_gcc-14.2.0_musl/lib/gcc/mipsel-openwrt-linux-musl/14.2.0/../../../../mipsel-openwrt-linux-musl/bin/ld.bfd: ./liblua.so: undefined reference to `__mips16_muldf3'
```
Link: https://github.com/openwrt/openwrt/pull/18688
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Xcode 16.3 defines TARGET_OS_MAC, it was not defined in prior versions.
zutil.h conditionally defines fdopen as NULL when this macro is defined,
resulting in the following build error:
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:318:7: e>
318 | FILE *fdopen(int, const char *) __DARWIN_ALIAS_STARTING(__MAC_10_6, __IPHONE_2_0, __DARWIN_ALIAS(fdopen));
| ^
./zutil.h:147:33: note: expanded from macro 'fdopen'
147 | # define fdopen(fd,mode) NULL /* No fdopen() */
In Xcode 16.2 and earlier, TARGET_OS_MAC was not defined so this entire
block was ignored, gcc and gdb used to compile and work fine.
This may have been used for compatibility with older versions of macOS,
but is no longer needed. By pure luck, the build worked fine for a long
time, because it did not properly detect macOS.
Fixed by removing the check for TARGET_OS_MAC.
Note that since Xcode 16.3, an entire set of TARGET_OS macros
are now defined, most of which are set to 0:
TARGET_OS_LINUX 0
TARGET_OS_MAC 1
TARGET_OS_OSX 1
Signed-off-by: Georgi Valkov <gvalkov@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/18467
Signed-off-by: Robert Marko <robimarko@gmail.com>
