https://bugs.llvm.org/show_bug.cgi?id=41424
Bug ID: 41424
Summary: systemz: "error in backend: Unsupported stack frame
traversal count"
Product: new-bugs
Version: 8.0
Hardware: Other
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Created attachment 21745
--> https://bugs.llvm.org/attachment.cgi?id=21745&action=edit
preprocessed kernel/trace/trace_sched_wakeup.c
I get a build failure for various file when trying to compile the linux kernel
for s390 (systemz):
clang-8" "-cc1" "-triple" "s390x-unknown-linux-gnu" "-S" "-disable-free"
"-disable-llvm-verifier" "-discard-value-names" "-main-file-name"
"trace_sched_wakeup.c" "-mrelocation-model" "static" "-mthread-model" "posix"
"-relaxed-aliasing" "-fmath-errno" "-masm-verbose" "-no-integrated-as"
"-mconstructor-aliases" "-fuse-init-array" "-target-cpu" "z196" "-mbackchain"
"-dwarf-column-info" "-debug-info-kind=limited" "-dwarf-version=4"
"-debugger-tuning=gdb" "-momit-leaf-frame-pointer" "-coverage-notes-file"
"/git/arm-soc/y2038/obj-s390/kernel/trace/trace_sched_wakeup.gcno"
"-nostdsysteminc" "-nobuiltininc" "-sys-header-deps" "-D" "__KERNEL__" "-D"
"CONFIG_AS_CFI_VAL_OFFSET=1" "-D" "CC_USING_FENTRY" "-D"
"KBUILD_BASENAME=\"trace_sched_wakeup\"" "-D"
"KBUILD_MODNAME=\"trace_sched_wakeup\"" "-O2" "-Wall" "-Wundef"
"-Werror=strict-prototypes" "-Wno-trigraphs"
"-Werror=implicit-function-declaration" "-Werror=implicit-int"
"-Wno-format-security" "-Wno-sign-compare" "-Wno-format-invalid-specifier"
"-Wno-gnu" "-Wno-address-of-packed-member" "-Wno-tautological-compare"
"-Wno-unused-const-variable" "-Wdeclaration-after-statement" "-Wvla"
"-Wno-pointer-sign" "-Werror=date-time" "-Werror=incompatible-pointer-types"
"-Wno-initializer-overrides" "-Wno-unused-value" "-Wno-format"
"-Wno-sign-compare" "-Wno-format-zero-length" "-std=gnu89"
"-fno-dwarf-directory-asm" "-ferror-limit" "19" "-fmessage-length" "132"
"-fwrapv" "-fno-signed-char" "-fwchar-type=short" "-fno-signed-wchar"
"-fobjc-runtime=gcc" "-fno-common" "-fdiagnostics-show-option"
"-fcolor-diagnostics" "-vectorize-loops" "-vectorize-slp" "-x" "c"
"trace_sched_wakeup-ff17db.c"
fatal error: error in backend: Unsupported stack frame traversal count
I did not try reducing the test case, but could do so if it's not immediately
clear from the output where the problem is.
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