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unsupported directive '.stabs' #1418

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nickdesaulniers opened this issue Jun 28, 2021 · 8 comments
Closed

unsupported directive '.stabs' #1418

nickdesaulniers opened this issue Jun 28, 2021 · 8 comments
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[ARCH] powerpc This bug impacts ARCH=powerpc [BUG] linux A bug that should be fixed in the mainline kernel. [FIXED][LINUX] 5.18 This bug was fixed in Linux 5.18 Reported upstream This bug was filed on LLVM’s issue tracker, Phabricator, or the kernel mailing list. [TOOL] integrated-as The issue is relevant to LLVM integrated assembler

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@nickdesaulniers
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$ ARCH=powerpc CROSS_COMPILE=powerpc64le-linux-gnu- make LLVM=1 LLVM_IAS=1 -j72 pseries_defconfig arch/powerpc/kernel/vdso32/gettimeofday.o
...
arch/powerpc/kernel/vdso32/gettimeofday.S:72:8: error: unsupported directive '.stabs'
.stabs "_restgpr_31_x:F-1",36,0,0,_restgpr_31_x; .globl _restgpr_31_x; _restgpr_31_x:
       ^
arch/powerpc/kernel/vdso32/gettimeofday.S:73:8: error: unsupported directive '.stabs'
.stabs "_rest32gpr_31_x:F-1",36,0,0,_rest32gpr_31_x; .globl _rest32gpr_31_x; _rest32gpr_31_x:
       ^

https://sourceware.org/binutils/docs/as/Stab.html
@nickdesaulniers nickdesaulniers added [BUG] Untriaged Something isn't working [TOOL] integrated-as The issue is relevant to LLVM integrated assembler [ARCH] powerpc This bug impacts ARCH=powerpc labels Jun 28, 2021
@nickdesaulniers
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.stabs is also used in arch/powerpc/lib/copy_32.S.

@paulmenzel
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The LLVM developers say in bug report[inline asm] .stabs directive support , STABS is replaced by DWARF.

@nickdesaulniers nickdesaulniers added the Reported upstream This bug was filed on LLVM’s issue tracker, Phabricator, or the kernel mailing list. label Sep 9, 2021
@nickdesaulniers
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@segher mentions on IRC:

stabs is an older debug format, like dwarf
it will be good to have it eradicated :-)
you need to figure out what it does, instead [of just removing it]

@segher
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segher commented Sep 9, 2021

"to have it eradicated"... I was talking about the GCC support for STABS. This has no
bearing on the VDSO issue.

@nickdesaulniers nickdesaulniers mentioned this issue Oct 20, 2021
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@nickdesaulniers nickdesaulniers self-assigned this Oct 29, 2021
@nickdesaulniers nickdesaulniers added [BUG] linux A bug that should be fixed in the mainline kernel. and removed [BUG] Untriaged Something isn't working labels Oct 29, 2021
@nickdesaulniers nickdesaulniers removed their assignment Dec 28, 2021
@nickdesaulniers
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cc @aik

@nathanchance
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Patch removing these annotations has been picked up: https://git.kernel.org/powerpc/c/12318163737cd8808d13faa6e2393774191a6182

@nathanchance nathanchance added the [PATCH] Accepted A submitted patch has been accepted upstream label Feb 16, 2022
nathanchance added a commit to nathanchance/continuous-integration2 that referenced this issue Mar 4, 2022
@nathanchance
generator.yml: Build powerpc64le configs with LLVM=1 with LLVM ToT
f085115 
On mainline, SUSE's configuration needs to build with LLVM_IAS=0 because
of ClangBuiltLinux/linux#1418.

Closes: ClangBuiltLinux#265
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
@nathanchance nathanchance mentioned this issue Mar 4, 2022
Merged
@nickdesaulniers
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(Noting that we should revisit ClangBuiltLinux/continuous-integration2#321 once this is closed out)

nathanchance added a commit to nathanchance/continuous-integration2 that referenced this issue Mar 4, 2022
@nathanchance
generator.yml: Build powerpc64le configs with LLVM=1 with LLVM ToT
b574dab 
On mainline, SUSE's configuration needs to build with LLVM_IAS=0 because
of ClangBuiltLinux/linux#1418.

Closes: ClangBuiltLinux#265
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
nathanchance added a commit to nathanchance/continuous-integration2 that referenced this issue Mar 8, 2022
@nathanchance
generator.yml: Build powerpc64le configs with LLVM=1 with LLVM ToT
31b3b29 
On mainline, SUSE's configuration needs to build with LLVM_IAS=0 because
of ClangBuiltLinux/linux#1418.

The distribution configs link with ld.bfd for the time being due to an
outstanding boot failure when the kernel is linked with ld.lld.

Closes: ClangBuiltLinux#265
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
@nathanchance nathanchance mentioned this issue Mar 8, 2022
Merged
nathanchance added a commit to nathanchance/continuous-integration2 that referenced this issue Mar 9, 2022
@nathanchance
generator.yml: Build powerpc64le configs with LLVM=1 with LLVM ToT
eba08eb 
On mainline, SUSE's configuration needs to build with LLVM_IAS=0 because
of ClangBuiltLinux/linux#1418.

Closes: ClangBuiltLinux#265
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
nathanchance added a commit to nathanchance/continuous-integration2 that referenced this issue Mar 10, 2022
@nathanchance
generator.yml: Build powerpc64le configs with LLVM=1 with LLVM ToT
563cb58 
On mainline, SUSE's configuration needs to build with LLVM_IAS=0 because
of ClangBuiltLinux/linux#1418.

Closes: ClangBuiltLinux#265
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
nathanchance added a commit to nathanchance/continuous-integration2 that referenced this issue Mar 11, 2022
@nathanchance
generator.yml: Build powerpc64le configs with LLVM=1 with LLVM ToT
4eec5c4 
On mainline, SUSE's configuration needs to build with LLVM_IAS=0 because
of ClangBuiltLinux/linux#1418.

Closes: ClangBuiltLinux#265
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
@nathanchance
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Merged into mainline: https://git.kernel.org/linus/12318163737cd8808d13faa6e2393774191a6182

@nathanchance nathanchance added [FIXED][LINUX] 5.18 This bug was fixed in Linux 5.18 and removed [PATCH] Accepted A submitted patch has been accepted upstream labels Mar 25, 2022
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[ARCH] powerpc This bug impacts ARCH=powerpc [BUG] linux A bug that should be fixed in the mainline kernel. [FIXED][LINUX] 5.18 This bug was fixed in Linux 5.18 Reported upstream This bug was filed on LLVM’s issue tracker, Phabricator, or the kernel mailing list. [TOOL] integrated-as The issue is relevant to LLVM integrated assembler
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@segher @nickdesaulniers @paulmenzel @nathanchance