Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -g -O3 -feliminate-unused-debug-types -pipe -Wall
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -Wformat -Wformat-security -m64
-fasynchronous-unwind-tables -Wp,-D_REENTRANT -ftree-loop-distribute-patterns
-Wl,-z -Wl,now -Wl,-z -Wl,relro -fno-semantic-interposition -ffat-lto-objects
-fno-trapping-math -Wl,-sort-common -Wl,--enable-new-dtags -mtune=skylake
uname output: Linux pneuma 5.16.4-1119.native #1 SMP Sat Jan 29 03:03:44 PST
2022 x86_64 GNU/Linux
Machine Type: x86_64-pc-linux-gnu
Bash Version: 5.1
Patch Level: !PATCHLEVEL!
Release Status: release
Description:
The following simplified reproducer demonstrates an incorrect status being
returned from the test() function when run with bash 5.1 or above. The correct
status is returned on bash versions 5.0 and below, though it doesn't appear to
run the trap.
---snip---
#!/bin/bash -x
function cleanup() {
echo "do some clean up"
}
function test() {
trap cleanup EXIT
if false; then
echo "do something"
else
return 0
fi
}
test &
wait $!
echo "test() exit status is $?"
---snip---
Example when run on bash 5.1 or above:
$ ./t.sh
+ wait 66914
+ test
+ trap cleanup EXIT
+ false
+ return 0
++ cleanup
++ echo 'do some clean up'
do some clean up
+ echo 'test() exit status is 1'
test() exit status is 1
Some observations about the behavior:
1) It only occurs if the function has an EXIT trap. It returns the correct
status if a RETURN trap is used.
2) If the function returns with an 'exit 0' instead of a 'return 0', the
correct status is returned.
3) If the if/else is rearranged such that the 'return 0' comes from the true
case of the if/else, the correct status is returned.
Repeat-By:
See above.
