https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=262220
Bug ID: 262220
Summary: clang fails to write a reproducer on signal
Product: Base System
Version: 13.0-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bin
Assignee: b...@freebsd.org
Reporter: y...@freebsd.org
Clang is supposed to write reproducers when it catches SIGSEGV.
However, when SETSEGV is sent with 'killall -11 cc' clang fails to write a
reproducer:
> cc -O2 -pipe -fno-omit-frame-pointer -fstack-protector-strong -isystem
> /usr/local/include -fno-strict-aliasing -std=c99 -Wall -Wextra -pedantic
> -Wno-misleading-indentation -Wno-shift-negative-value -O2 -o bin/file_browser
> file_browser.c -L/usr/local/lib -lglfw -lGL -lm -lGLU -lGLEW
> PLEASE submit a bug report to https://bugs.freebsd.org/submit/ and include
> the crash backtrace, preprocessed source, and associated run script.
> PLEASE submit a bug report to https://bugs.freebsd.org/submit/ and include
> the crash backtrace, preprocessed source, and associated run script.
> Stack dump:
> Stack dump:
> 00. . Program arguments: Program arguments: /uscrc/ b-iOn2/ c-cp
> i-pcec 1- f-ntor-iopmliet -xf8r6a_m6e4--puoniknntoerw
> n--ffsrteaecbks-dp1r3o.t0e c-teomri-ts-torbojn g- --mirselyasxt-reeml
> o/ucsart/lioocnasl /-idncilusdaeb le--ffnroe-es t-rdiicst-aabllie-alslvimn-gv
> er-isftide=cr99 --Wdaills ca-rWde-xvtraalu e--pendamaenst i-cm
> a-iWnn-of-imlies-lneaamdei nfigl-ei_nbdreonwtsaetri.onc
> --mrWenloo-schiaftti-onne-gmaotdievle -svtaaltuei c- O-2m f-roa
> mbei-np/ofiinlte_ebrro=waslelr f-irleel_abxredo-walsiaesri.ncg
> --Lf/nuos-rro/ulnodcianlg/-lmiabt -lhgl f-wm c-loGnLs t-rlumc t-olrG-LaUl
> i-alsGeLsE W-
munwind-tables -target-cpu x86-64 -tune-cpu generic -fno-split-dwarf-inlining
-debugger-tuning=gdb -resource-dir /usr/lib/clang/12.0.1 -isystem
/usr/local/include -O2 -Wall -Wextra -Wno-misleading-indentation
-Wno-shift-negative-value -pedantic -std=c99 -fdebug-compilation-dir
/disk-samsung/freebsd-ports/x11-toolkits/nuklear/work/Nuklear-4.9.6/example
-ferror-limit 19 -stack-protector 2 -fgnuc-version=4.2.1 -fcolor-diagnostics
-vectorize-loops -vectorize-slp -faddrsig -o /tmp/file_browser-f37ca1.o -x c
file_browser.c
> 1. <eof> parser at end of file
> 2. Per-module optimization passes
> 3. Running pass 'CallGraph Pass Manager' on module 'file_browser.c'.
> 4. Running pass 'Jump Threading' on function '@stbi__decode_jpeg_image'
> #0 0x000000000404ec91 PrintStackTrace
> /disk-samsung/freebsd-src/contrib/llvm-project/llvm/lib/Support/Unix/Signals.inc:565:13
> #1 0x000000000404d035 RunSignalHandlers
> /disk-samsung/freebsd-src/contrib/llvm-project/llvm/lib/Support/Signals.cpp:72:18#0
> #20x000000000404ec91 0x000000000404f3b0PrintStackTrace
> SignalHandler/disk-samsung/freebsd-src/contrib/llvm-project/llvm/lib/Support/Unix/Signals.inc:565:13
>
/disk-samsung/freebsd-src/contrib/llvm-project/llvm/lib/Support/Unix/Signals.inc:0:3
> #1 #30x000000000404d035 0x0000000805335e60RunSignalHandlers
> handle_signal/disk-samsung/freebsd-src/contrib/llvm-project/llvm/lib/Support/Signals.cpp:72:18
>
/disk-samsung/freebsd-src/lib/libthr/thread/thr_sig.c:0:3
> #2 0x000000000404f3b0 SignalHandler
> /disk-samsung/freebsd-src/contrib/llvm-project/llvm/lib/Support/Unix/Signals.inc:0:3
> #3 0x0000000805335e60 handle_signal
> /disk-samsung/freebsd-src/lib/libthr/thread/thr_sig.c:0:3
> error: unable to rename temporary '/tmp/file_browser-f37ca1-b48eb1e9.o.tmp'
> to output file '/tmp/file_browser-f37ca1.o': 'No such file or directory'
> 1 error generated.
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