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Cherry Zhang c06a354bcc test: trigger SIGSEGV instead of SIGTRAP in issue11656.go 
In issue11656.go, it tests that if the runtime can get a
reasonable traceback when it faults at a non-function PC. It does
it by jumping to an address that contains an illegal or trap
instruction. When it traps, the SIGTRAP crashes the runtime.

This CL changes it to use an instruction that triggers SIGSEGV.
This is due to two reasons:
- currently, the handling of bad PC is done by preparePanic,
  which is only used for a panicking signal (SIGSEGV, SIGBUS,
  SIGFPE), not a fatal signal (e.g. SIGTRAP).
- the test uses defer+recover to get a traceback, which only
  works for panicking signals, not fatal signals.

Ideally, we should handle all kinds of faults (SIGSEGV, SIGBUS,
SIGILL, SIGTRAP, etc.) with a nice traceback. I'll leave this
for the future.

This CL also adds RISCV64 support.

Fixes #43283.

Change-Id: I5e0fbf8530cc89d16e05c3257d282bc1d4d03405
Reviewed-on: https://go-review.googlesource.com/c/go/+/279423
Trust: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-12-22 18:36:29 +00:00
..
alias3.dir
bench
chan test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
closure3.dir
codegen
ddd2.dir
dwarf
fixedbugs test: trigger SIGSEGV instead of SIGTRAP in issue11656.go 2020-12-22 18:36:29 +00:00
import2.dir
import4.dir
interface test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
intrinsic.dir
ken
linkname.dir
method4.dir
oldescape_linkname.dir
retjmp.dir
runtime
stress
syntax test: match gofrontend error messages 2020-12-02 02:56:41 +00:00
uintptrescapes.dir
64bit.go
235.go
alg.go
alias1.go
alias2.go
alias3.go
alias.go
align.go
append1.go
append.go
args.go
armimm.go
assign1.go
assign.go test: match gccgo error messages 2020-12-03 16:28:44 +00:00
atomicload.go
bigalg.go
bigmap.go
blank1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
blank.go
bom.go
bombad.go
bounds.go
cannotassign.go
chancap.go
chanlinear.go
char_lit1.go
char_lit.go
checkbce.go
clearfat.go
closedchan.go
closure1.go
closure2.go
closure3.go
closure4.go
closure.go
cmp6.go
cmp.go
cmplx.go
cmplxdivide1.go
cmplxdivide.c
cmplxdivide.go
complit1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
complit.go
compos.go
const1.go
const2.go
const3.go
const4.go
const5.go
const6.go
const.go
convert1.go
convert2.go
convert3.go
convert.go
convlit1.go
convlit.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
convT2X.go
copy1.go
copy.go
crlf.go
ddd1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
ddd2.go
ddd.go
decl.go
declbad.go
defer.go
defererrcheck.go
deferfin.go
defernil.go
deferprint.go
deferprint.out
devirt.go
directive.go
divide.go
divmod.go
empty.go
env.go
eof1.go
eof.go
escape2.go
escape2n.go
escape3.go
escape4.go
escape5.go
escape_array.go
escape_calls.go
escape_closure.go
escape_field.go
escape_goto.go
escape_hash_maphash.go
escape_iface.go
escape_indir.go
escape_level.go
escape_map.go
escape_param.go
escape_runtime_atomic.go
escape_selfassign.go
escape_slice.go
escape_struct_param1.go
escape_struct_param2.go
escape_struct_return.go
escape_sync_atomic.go
escape_unsafe.go
escape.go
fibo.go
finprofiled.go
float_lit2.go
float_lit3.go
float_lit.go
floatcmp.go
for.go
func1.go
func2.go
func3.go
func4.go
func5.go
func6.go
func7.go
func8.go
func.go
funcdup2.go
funcdup.go
gc1.go
gc2.go
gc.go
gcgort.go
gcstring.go
goprint.go
goprint.out
goto.go
heapsampling.go
helloworld.go
helloworld.out
if.go
import1.go
import2.go
import4.go
import5.go
import6.go
import.go
index0.go
index1.go
index2.go
index.go
indirect1.go
indirect.go
init1.go
init.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
initcomma.go
initempty.go
initialize.go
initializerr.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
initloop.go
inline_big.go
inline_caller.go
inline_callers.go
inline_literal.go
inline_math_bits_rotate.go
inline_sync.go
inline_variadic.go
inline.go
int_lit.go
intcvt.go
intrinsic_atomic.go
intrinsic.go
iota.go
label1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
label.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
linkmain_run.go
linkmain.go
linkname.go
linkobj.go test: recognize and use gc build tag 2020-12-18 00:10:44 +00:00
linkx_run.go test: recognize and use gc build tag 2020-12-18 00:10:44 +00:00
linkx.go
literal2.go
literal.go
live1.go
live2.go
live_syscall.go
live.go
locklinear.go
loopbce.go
makechan.go
makemap.go
makenew.go
makeslice.go
mallocfin.go
map1.go test: match gofrontend error messages 2020-11-28 02:31:54 +00:00
map.go
mapclear.go
maplinear.go
mergemul.go
method1.go
method2.go test: match gccgo error messages 2020-12-03 16:28:44 +00:00
method3.go
method4.go
method5.go
method6.go
method7.go
method.go
named1.go
named.go
nil.go
nilcheck.go
nilptr2.go
nilptr3.go
nilptr4.go
nilptr5_aix.go
nilptr5_wasm.go
nilptr5.go
nilptr_aix.go
nilptr.go
nosplit.go test: recognize and use gc build tag 2020-12-18 00:10:44 +00:00
notinheap2.go
notinheap3.go
notinheap.go
nowritebarrier.go
nul1.go
opt_branchlikely.go
parentype.go
peano.go
phiopt.go
print.go
print.out
printbig.go
printbig.out
prove.go
range.go
README.md
recover1.go
recover2.go
recover3.go
recover4.go
recover5.go
recover.go
reflectmethod1.go
reflectmethod2.go
reflectmethod3.go
reflectmethod4.go
reflectmethod5.go
reflectmethod6.go
rename1.go
rename.go
reorder2.go
reorder.go
retjmp.go
return.go
rotate0.go
rotate1.go
rotate2.go
rotate3.go
rotate.go
run.go test: recognize and use gc build tag 2020-12-18 00:10:44 +00:00
rune.go
runtime.go
shift1.go test: recognize gofrontend error messages 2020-11-30 20:08:34 +00:00
shift2.go
sieve.go
sigchld.go
sigchld.out
simassign.go
sinit_run.go test: recognize and use gc build tag 2020-12-18 00:10:44 +00:00
sinit.go
sizeof.go
slice3.go
slice3err.go
slicecap.go
sliceopt.go
solitaire.go
stack.go
stackobj2.go
stackobj3.go
stackobj.go
strcopy.go
strength.go
string_lit.go
stringrange.go
struct0.go
switch2.go
switch3.go
switch4.go
switch5.go
switch6.go
switch7.go
switch.go
tinyfin.go
torture.go
turing.go
typecheck.go
typecheckloop.go
typeswitch1.go
typeswitch2.go
typeswitch2b.go
typeswitch3.go
typeswitch.go
uintptrescapes2.go
uintptrescapes3.go
uintptrescapes.go
undef.go
utf.go
varerr.go
varinit.go
winbatch.go all: update to use filepath.WalkDir instead of filepath.Walk 2020-12-02 16:33:57 +00:00
writebarrier.go
zerodivide.go

README.md

The test directory contains tests of the Go tool chain and runtime. It includes black box tests, regression tests, and error output tests. They are run as part of all.bash.

To run just these tests, execute:

../bin/go run run.go

To run just tests from specified files in this directory, execute:

../bin/go run run.go -- file1.go file2.go ...

Standard library tests should be written as regular Go tests in the appropriate package.

The tool chain and runtime also have regular Go tests in their packages. The main reasons to add a new test to this directory are:

  • it is most naturally expressed using the test runner; or
  • it is also applicable to gccgo and other Go tool chains.