- 04 Feb, 2021 1 commit
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Thomas Bogendoerfer authored
Selection of the DTB to be used was burried in more or less readable code in head.S. Move this code into a inline helper function and use it. Signed-off-by:
Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by:
Florian Fainelli <f.fainelli@gmail.com>
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- 03 Feb, 2021 4 commits
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Bhaskar Chowdhury authored
s/logcal/logical/ s/intercpu/inter-CPU/ Signed-off-by:
Bhaskar Chowdhury <unixbhaskar@gmail.com> Acked-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
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Yang Li authored
Eliminate the following coccicheck warning: ./arch/mips/mti-malta/malta-time.c:141:2-3: Unneeded semicolon Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Yang Li <yang.lee@linux.alibaba.com> Signed-off-by:
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Yang Li authored
Eliminate the following coccicheck warning: ./arch/mips/kvm/mips.c:151:2-3: Unneeded semicolon Reported-by:
Huacai Chen <chenhuacai@kernel.org> Signed-off-by:
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Huang Pei authored
MIPS always save kernel stack pointer in regs[29] Signed-off-by:
Huang Pei <huangpei@loongson.cn> Signed-off-by:
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- 27 Jan, 2021 6 commits
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Tiezhu Yang authored
Fix the following build error when make M=samples/bpf used with Clang: CLANG-bpf samples/bpf/sockex2_kern.o In file included from samples/bpf/sockex2_kern.c:7: In file included from ./include/uapi/linux/if_tunnel.h:7: In file included from ./include/linux/ip.h:16: In file included from ./include/linux/skbuff.h:28: In file included from ./include/net/checksum.h:22: ./arch/mips/include/asm/checksum.h:161:9: error: unsupported inline asm: input with type 'unsigned long' matching output with type '__wsum' (aka 'unsigned int') : "0" ((__force unsigned long)daddr), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 error generated. This is a known issue on MIPS [1], the changed code can be compiled successfully by both GCC and Clang. [1] https://lore.kernel.org/linux-mips/CAG_fn=W0JHf8QyUX==+rQMp8PoULHrsQCa9Htffws31ga8k-iw@mail.gmail.com/Signed-off-by:Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by:
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Yanteng Si authored
MIPS can now use the default uncached_access like other archs. Signed-off-by:
Yanteng Si <siyanteng@loongson.cn> Acked-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Yanteng Si authored
We no longer need the MESA workaround, so remove it. Signed-off-by:
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Chengyang Fan authored
Remove a superfluous semicolon after function definition. Signed-off-by:
Chengyang Fan <cy.fan@huawei.com> Signed-off-by:
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Thomas Bogendoerfer authored
I couldn't find any user of the dubious vpe_getcwd so far. So remove it and get rid of another set_fs(KERNEL_DS). Signed-off-by: -
Souptick Joarder authored
kernel test robot throws below warning -> arch/mips/kernel/cacheinfo.c:112:3: warning: Variable 'level' is modified but its new value is never used. [unreadVariable] Remove unnecessary increment of level at the end. Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
Souptick Joarder <jrdr.linux@gmail.com> Reviewed-by:
Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by:
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- 25 Jan, 2021 6 commits
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Jinyang He authored
For those leaf functions, they are likely to have no stack operations. Add is_jr_ra_ins() to determine whether jr ra has been touched before the frame_size is found. Without this patch, the get frame_size operation may be out of range and get the frame_size from the next nested function. There is no POOL32A format in uapi/asm/inst.h, so some bits here use the format of r_format instead. e.g. --------------------------------------------------------------------- | format | 31:26 | 25:21 | 20:16 | 15:6 | 5:0 | -----------------+---------+-------+-------+------------+------------ | pool32a_format | pool32a | rt | rs | jalrc | pool32axf | -----------------+---------+-------+-------+------------+------------ | r_format | opcode | rs | rt | rd:5, re:5 | func | --------------------------------------------------------------------- Signed-off-by:
Jinyang He <hejinyang@loongson.cn> Signed-off-by:
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Jinyang He authored
[1]: Commit b6c7a324 ("MIPS: Fix get_frame_info() handling of microMIPS function size") [2]: Commit 2b424cfc ("MIPS: Remove function size check in get_frame_info()") First patch added a constant to check the number of iterations against. Second patch fixed the situation that info->func_size is zero. However, func_size member became useless after the second commit. Without ip_end, the get frame_size operation may be out of range although KALLSYMS enabled. Thus, check func_size first. Then make ip_end be the sum of ip and a constant (512) if func_size is equal to 0. Otherwise make ip_end be the sum of ip and func_size. Signed-off-by:
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Jinyang He authored
mm16_r5_format.rt is 5 bits, so directly judge the value if equal or not. mm_jalr_op requires 7th to 16th bits. These 10 which bits generated by shifting u_format.uimmediate by 6 may be affected by sign extension. Thus, take out the 10 bits for comparison. Without this patch, errors may occur, such as these bits are all ones. Signed-off-by:
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Jinyang He authored
Some headers are not necessary, remove them and sort includes. Signed-off-by:
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Maciej W. Rozycki authored
I find linux-mips.org too unreliable to rely on, so move to a place I have proper control over. Signed-off-by:
Maciej W. Rozycki <macro@orcam.me.uk> Signed-off-by:
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Lauri Kasanen authored
This adds support for the Nintendo 64 console's sound. Signed-off-by:
Lauri Kasanen <cand@gmx.com> Reviewed-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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- 22 Jan, 2021 7 commits
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Arnd Bergmann authored
kgdb fails to build when the FPU support is disabled: arch/mips/kernel/kgdb.c: In function 'dbg_set_reg': arch/mips/kernel/kgdb.c:147:35: error: 'struct thread_struct' has no member named 'fpu' 147 | memcpy((void *)¤t->thread.fpu.fcr31, mem, | ^ arch/mips/kernel/kgdb.c:155:34: error: 'struct thread_struct' has no member named 'fpu' 155 | memcpy((void *)¤t->thread.fpu.fpr[fp_reg], mem, This is only relevant for CONFIG_EXPERT=y, so disallowing it in Kconfig is an easier workaround than fixing it properly. Reported-by:Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Arnd Bergmann authored
The kernel test robot keeps reporting the same bug when it shows up in new files after random unrelated patches: In file included from arch/mips/include/uapi/asm/byteorder.h:13, from arch/mips/include/asm/bitops.h:20, from include/linux/bitops.h:26, from include/linux/kernel.h:12, from include/linux/clk.h:13, from drivers/base/regmap/regmap-mmio.c:7: include/linux/byteorder/big_endian.h:8:2: warning: #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN [-Wcpp] 8 | #warning inconsistent configuration, needs CONFIG_CPU_BIG_ENDIAN | ^~~~~~~ drivers/base/regmap/regmap-mmio.c: In function 'regmap_mmio_gen_context': >> drivers/base/regmap/regmap-mmio.c:274:2: error: duplicate case value 274 | case REGMAP_ENDIAN_NATIVE: | ^~~~ drivers/base/regmap/regmap-mmio.c:246:2: note: previously used here 246 | case REGMAP_ENDIAN_NATIVE: The problem is that some randconfig builds end up on the MIPS jazz platform with neither CONFIG_CPU_BIG_ENDIAN nor CONFIG_CPU_LITTLE_ENDIAN because no specific machine is selected. As it turns out, all jazz machines support little-endian kernels, so this can simply be allowed globally. Reported-by: -
Tiezhu Yang authored
The kernel definitions of MIPSInst_FMA_FUNC and MIPSInst_FMA_FFMT are not consistent with MADD.fmt, NMADD.fmt and NMSUB.fmt in the MIPS64 manual [1], the field func is bit 5..3 and fmt is bit 2..0, fix them. Otherwise there exists error when add new instruction simulation. [1] https://www.mips.com/?do-download=the-mips64-instruction-set-v6-06Reported-by:
Ming Wang <wangming01@loongson.cn> Signed-off-by:
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Lauri Kasanen authored
Add support for the Nintendo 64. Signed-off-by:
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Lauri Kasanen authored
This reverts commit f9065b54. We're adding Nintendo 64 support, so the VR4300 is no longer unused. Signed-off-by:
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Yanteng Si authored
This commit adds a prototype to fix error at W=1: arch/mips/mm/cache.c:129:6: error: no previous prototype for '__update_cache' [-Werror=missing-prototypes] Signed-off-by:
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Thomas Bogendoerfer authored
When there's a fatal signal pending, MIPS's do_page_fault() implementation returns. The intent is that we'll return to the faulting userspace instruction, delivering the signal on the way. However, if we take a fatal signal during fixing up a uaccess, this results in a return to the faulting kernel instruction, which will be instantly retried, resulting in the same fault being taken forever. As the task never reaches userspace, the signal is not delivered, and the task is left unkillable. While the task is stuck in this state, it can inhibit the forward progress of the system. To avoid this, we must ensure that when a fatal signal is pending, we apply any necessary fixup for a faulting kernel instruction. Thus we will return to an error path, and it is up to that code to make forward progress towards delivering the fatal signal. [ Description taken from commit 746a272e ("ARM: 8692/1: mm: abort uaccess retries upon fatal signal") ] Signed-off-by:
Mark Rutland <mark.rutland@arm.com>
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- 19 Jan, 2021 2 commits
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Yanteng Si authored
This commit adds a prototype to fix error at W=1: arch/mips/kernel/irq.c:52:13: error: no previous prototype for 'init_IRQ' [-Werror=missing-prototypes] Signed-off-by:
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Kevin Hao authored
This reverts commit d9df9fb9. For the OCTEON boards, it need to patch the built-in DTB before using it. Previously it judges if it is a built-in DTB by checking fw_passed_dtb. But after commit 37e5c69f ("MIPS: head.S: Init fw_passed_dtb to builtin DTB", the fw_passed_dtb is initialized even when using built-in DTB. This causes the OCTEON boards boot broken due to an unpatched built-in DTB is used. Revert the commit d9df9fb9 to restore the codes before the fw_passed_dtb is used and then fix this issue. Fixed: 37e5c69f ("MIPS: head.S: Init fw_passed_dtb to builtin DTB") Cc: stable@vger.kernel.org Suggested-by:
Kevin Hao <haokexin@gmail.com> Signed-off-by:
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- 18 Jan, 2021 4 commits
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Alexander Lobakin authored
For now, vmlinux relocation functions for relocatable kernel are implemented as an array of handlers of a particular type. Convert that array into a single switch-case function to: - remove unused arguments; - change the return type of simple handlers to void; - remove the array and don't use any data at all; - avoid using indirect calls; - allow the compiler to inline and greatly optimize the relocation function[s]; and also mark do_relocations() and show_kernel_relocation() static as they aren't used anywhere else. The result on MIPS32 R2 with GCC 10.2 -O2 is: scripts/bloat-o-meter -c arch/mips/kernel/__relocate.o arch/mips/kernel/relocate.o add/remove: 0/6 grow/shrink: 1/0 up/down: 356/-640 (-284) Function old new delta relocate_kernel 852 1208 +356 apply_r_mips_32_rel 20 - -20 apply_r_mips_hi16_rel 40 - -40 apply_r_mips_64_rel 44 - -44 apply_r_mips_26_rel 144 - -144 show_kernel_relocation 164 - -164 do_relocations 228 - -228 Total: Before=1780, After=1496, chg -15.96% add/remove: 0/1 grow/shrink: 0/0 up/down: 0/-76 (-76) Data old new delta reloc_handlers_rel 76 - -76 Total: Before=92, After=16, chg -82.61% add/remove: 0/0 grow/shrink: 0/0 up/down: 0/0 (0) RO Data old new delta Total: Before=0, After=0, chg +0.00% All functions were collapsed into the main one, relocate_kernel(). Signed-off-by:
Alexander Lobakin <alobakin@pm.me> Signed-off-by:
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Alexander Lobakin authored
For now, module relocation functions are implemented as an array of handlers of type reloc_handler_t. Convert that array into a single switch-case function to: - remove unused arguments; - change the return type of simple handlers to void; - remove the array and don't use any data at all; - avoid using indirect calls; - allow the compiler to inline and greatly optimize the relocation function[s]. The result on MIPS32 R2 with GCC 10.2 -O2 is: scripts/bloat-o-meter -c arch/mips/kernel/__module.o arch/mips/kernel/module.o add/remove: 1/11 grow/shrink: 1/0 up/down: 876/-1436 (-560) Function old new delta apply_relocate 456 1148 +692 apply_r_mips_pc - 184 +184 apply_r_mips_none 8 - -8 apply_r_mips_32 16 - -16 apply_r_mips_64 76 - -76 apply_r_mips_highest 88 - -88 apply_r_mips_higher 108 - -108 apply_r_mips_26 132 - -132 apply_r_mips_pc26 160 - -160 apply_r_mips_pc21 160 - -160 apply_r_mips_pc16 160 - -160 apply_r_mips_hi16 172 - -172 apply_r_mips_lo16 356 - -356 Total: Before=2608, After=2048, chg -21.47% add/remove: 0/0 grow/shrink: 0/0 up/down: 0/0 (0) Data old new delta Total: Before=12, After=12, chg +0.00% add/remove: 0/1 grow/shrink: 0/0 up/down: 0/-248 (-248) RO Data old new delta reloc_handlers 248 - -248 Total: Before=248, After=0, chg -100.00% All functions were collapsed into a single one that is called directly by $(srctree)/kernel/module.c. Signed-off-by:
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Nathan Chancellor authored
Commit ee67855e ("MIPS: vdso: Allow clang's --target flag in VDSO cflags") allowed the '--target=' flag from the main Makefile to filter through to the vDSO. However, it did not bring any of the other clang specific flags for controlling the integrated assembler and the GNU tools locations (--prefix=, --gcc-toolchain=, and -no-integrated-as). Without these, we will get a warning (visible with tinyconfig): arch/mips/vdso/elf.S:14:1: warning: DWARF2 only supports one section per compilation unit .pushsection .note.Linux, "a",@note ; .balign 4 ; .long 2f - 1f ; .long 4484f - 3f ; .long 0 ; 1:.asciz "Linux" ; 2:.balign 4 ; 3: ^ arch/mips/vdso/elf.S:34:2: warning: DWARF2 only supports one section per compilation unit .section .mips_abiflags, "a" ^ All of these flags are bundled up under CLANG_FLAGS in the main Makefile and exported so that they can be added to Makefiles that set their own CFLAGS. Use this value instead of filtering out '--target=' so there is no warning and all of the tools are properly used. Cc: stable@vger.kernel.org Fixes: ee67855e ("MIPS: vdso: Allow clang's --target flag in VDSO cflags") Link: https://github.com/ClangBuiltLinux/linux/issues/1256Reported-by:
Anders Roxell <anders.roxell@linaro.org> Signed-off-by:
Nathan Chancellor <natechancellor@gmail.com> Tested-by:
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Paul Cercueil authored
The JZ4760 has the HPTLB as well, but has a XBurst CPU with a D0 CPUID. Disable the HPTLB for all XBurst CPUs with a D0 CPUID. In the case where there is no HPTLB (e.g. for older SoCs), this won't have any side effect. Fixes: b02efeb0 ("MIPS: Ingenic: Disable abandoned HPTLB function.") Cc: <stable@vger.kernel.org> # 5.4 Signed-off-by:
Paul Cercueil <paul@crapouillou.net> Reviewed-by:
周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> Signed-off-by:
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- 15 Jan, 2021 10 commits
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Aurelien Jarno authored
From version 2.35, binutils can be configured with --enable-mips-fix-loongson3-llsc=yes, which means it defaults to -mfix-loongson3-llsc. This breaks labels which might then point at the wrong instruction. The workaround to explicitly pass -mno-fix-loongson3-llsc has been added in Linux version 5.1, but is only enabled when building a Loongson 64 kernel. As vendors might use a common toolchain for building Loongson and non-Loongson kernels, just move that workaround to arch/mips/Makefile. At the same time update the comments to reflect the current status. Cc: stable@vger.kernel.org # 5.1+ Cc: YunQiang Su <syq@debian.org> Signed-off-by:
Aurelien Jarno <aurelien@aurel32.net> Signed-off-by:
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Nathan Chancellor authored
When building with clang when CONFIG_CPU_LOONGSON3_WORKAROUNDS is enabled: In file included from lib/errseq.c:4: In file included from ./include/linux/atomic.h:7: ./arch/mips/include/asm/atomic.h:52:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_OPS(atomic64, s64) ^ ./arch/mips/include/asm/atomic.h:40:9: note: expanded from macro 'ATOMIC_OPS' return cmpxchg(&v->counter, o, n); ^ ./arch/mips/include/asm/cmpxchg.h:194:7: note: expanded from macro 'cmpxchg' if (!__SYNC_loongson3_war) ^ ./arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ While it is not wrong that the result of this shift is always true in a boolean context, it is not a problem here. Regardless, the warning is really noisy so rather than making the shift a boolean implicitly, use it in an equality comparison so the shift is used as an integer value. Fixes: 4d1dbfe6 ("MIPS: atomic: Emit Loongson3 sync workarounds within asm") Fixes: a91f2a1d ("MIPS: cmpxchg: Omit redundant barriers for Loongson3") Reported-by:Nick Desaulniers <ndesaulniers@google.com> Signed-off-by:
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Alexander Lobakin authored
Solves the following repetitive warning when building with -Wshadow: In file included from ./include/linux/pgtable.h:6, from ./include/linux/mm.h:33, from ./include/linux/dax.h:6, from ./include/linux/mempolicy.h:11, from kernel/fork.c:34: ./arch/mips/include/asm/mmu_context.h: In function ‘switch_mm’: ./arch/mips/include/asm/pgtable.h:97:16: warning: declaration of ‘flags’ shadows a previous local [-Wshadow] 97 | unsigned long flags; \ | ^~~~~ ./arch/mips/include/asm/mmu_context.h:162:2: note: in expansion of macro ‘htw_stop’ 162 | htw_stop(); | ^~~~~~~~ In file included from kernel/fork.c:102: ./arch/mips/include/asm/mmu_context.h:159:16: note: shadowed declaration is here 159 | unsigned long flags; | ^~~~~ Signed-off-by: -
Alexander Lobakin authored
Solves the following repetitive warning when building with -Wshadow: In file included from ./include/linux/bitops.h:32, from ./include/linux/kernel.h:11, from ./include/linux/skbuff.h:13, from ./include/linux/if_ether.h:19, from ./include/linux/etherdevice.h:20: ./arch/mips/include/asm/bitops.h: In function ‘test_and_set_bit_lock’: ./arch/mips/include/asm/bitops.h:46:16: warning: declaration of ‘orig’ shadows a previous local [-Wshadow] 46 | unsigned long orig, temp; \ | ^~~~ ./arch/mips/include/asm/bitops.h:190:10: note: in expansion of macro ‘__test_bit_op’ 190 | orig = __test_bit_op(*m, "%0", | ^~~~~~~~~~~~~ ./arch/mips/include/asm/bitops.h:185:21: note: shadowed declaration is here 185 | unsigned long res, orig; | ^~~~ ./arch/mips/include/asm/bitops.h: In function ‘test_and_clear_bit’: ./arch/mips/include/asm/bitops.h:46:16: warning: declaration of ‘orig’ shadows a previous local [-Wshadow] 46 | unsigned long orig, temp; \ | ^~~~ ./arch/mips/include/asm/bitops.h:236:9: note: in expansion of macro ‘__test_bit_op’ 236 | res = __test_bit_op(*m, "%1", | ^~~~~~~~~~~~~ ./arch/mips/include/asm/bitops.h:229:21: note: shadowed declaration is here 229 | unsigned long res, orig; | ^~~~ ./arch/mips/include/asm/bitops.h:46:16: warning: declaration of ‘orig’ shadows a previous local [-Wshadow] 46 | unsigned long orig, temp; \ | ^~~~ ./arch/mips/include/asm/bitops.h:241:10: note: in expansion of macro ‘__test_bit_op’ 241 | orig = __test_bit_op(*m, "%0", | ^~~~~~~~~~~~~ ./arch/mips/include/asm/bitops.h:229:21: note: shadowed declaration is here 229 | unsigned long res, orig; | ^~~~ ./arch/mips/include/asm/bitops.h: In function ‘test_and_change_bit’: ./arch/mips/include/asm/bitops.h:46:16: warning: declaration of ‘orig’ shadows a previous local [-Wshadow] 46 | unsigned long orig, temp; \ | ^~~~ ./arch/mips/include/asm/bitops.h:273:10: note: in expansion of macro ‘__test_bit_op’ 273 | orig = __test_bit_op(*m, "%0", | ^~~~~~~~~~~~~ ./arch/mips/include/asm/bitops.h:266:21: note: shadowed declaration is here 266 | unsigned long res, orig; | ^~~~ Signed-off-by: -
Alexander Lobakin authored
Now, after that all the sections are explicitly described and declared in vmlinux.lds.S, we can enable ld orphan warnings to prevent from missing any new sections in future. Signed-off-by:
Kees Cook <keescook@chromium.org> Reviewed-by:
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Alexander Lobakin authored
When building kernel with both LD_DEAD_CODE_DATA_ELIMINATION and UBSAN, LLVM stack generates lots of "unnamed data" sections: ld.lld: warning: net/built-in.a(netfilter/utils.o): (.data.$__unnamed_2) is being placed in '.data.$__unnamed_2' ld.lld: warning: net/built-in.a(netfilter/utils.o): (.data.$__unnamed_3) is being placed in '.data.$__unnamed_3' ld.lld: warning: net/built-in.a(netfilter/utils.o): (.data.$__unnamed_4) is being placed in '.data.$__unnamed_4' ld.lld: warning: net/built-in.a(netfilter/utils.o): (.data.$__unnamed_5) is being placed in '.data.$__unnamed_5' [...] Also handle this by adding the related sections to generic definitions. Signed-off-by:
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Alexander Lobakin authored
When building kernel with LD_DEAD_CODE_DATA_ELIMINATION, LLVM stack generates separate sections for compound literals, just like in case with enabled LTO [0]: ld.lld: warning: drivers/built-in.a(mtd/nand/spi/gigadevice.o): (.data..compoundliteral.14) is being placed in '.data..compoundliteral.14' ld.lld: warning: drivers/built-in.a(mtd/nand/spi/gigadevice.o): (.data..compoundliteral.15) is being placed in '.data..compoundliteral.15' ld.lld: warning: drivers/built-in.a(mtd/nand/spi/gigadevice.o): (.data..compoundliteral.16) is being placed in '.data..compoundliteral.16' ld.lld: warning: drivers/built-in.a(mtd/nand/spi/gigadevice.o): (.data..compoundliteral.17) is being placed in '.data..compoundliteral.17' [...] Handle this by adding the related sections to generic definitions as suggested by Sami [0]. [0] https://lore.kernel.org/lkml/20201211184633.3213045-3-samitolvanen@google.comSuggested-by:
Sami Tolvanen <samitolvanen@google.com> Suggested-by:
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Alexander Lobakin authored
LLVM stack generates GOT table when building the kernel: ld.lld: warning: <internal>:(.got) is being placed in '.got' According to the debug assertions, it's not zero-sized and thus can't be handled the way it's done for x86. Also use the ARM64 path here and place it at the end of .text section. Reported-by:
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Alexander Lobakin authored
According to linker warnings, both GCC and LLVM generate '.rel.dyn' symbols: mips-alpine-linux-musl-ld: warning: orphan section `.rel.dyn' from `init/main.o' being placed in section `.rel.dyn' Link-time assertion shows that this section is sometimes empty, sometimes not, depending on machine bitness and the compiler [0]: LD .tmp_vmlinux.kallsyms1 mips64-linux-gnu-ld: Unexpected run-time relocations (.rel) detected! Just use the ARM64 approach and declare it in vmlinux.lds.S closer to __init_end. [0] https://lore.kernel.org/linux-mips/20210109111259.GA4213@alpha.franken.deReported-by:
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Alexander Lobakin authored
Commit 866b6a89 ("MIPS: Add DWARF unwinding to assembly") added -fno-asynchronous-unwind-tables to KBUILD_CFLAGS to prevent compiler from emitting .eh_frame symbols. However, as MIPS heavily uses CFI, that's not enough. Use the approach taken for x86 (as it also uses CFI) and explicitly put CFI symbols into the .debug_frame section (except for VDSO). This allows us to drop .eh_frame from DISCARDS as it's no longer being generated. Fixes: 866b6a89 ("MIPS: Add DWARF unwinding to assembly") Suggested-by:
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