https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96973
Bug ID: 96973
Summary: No backtrace for cc1 on x86_64-apple-darwin
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libbacktrace
Assignee: unassigned at gcc dot gnu.org
Reporter: fxcoudert at gcc dot gnu.org
CC: ian at gcc dot gnu.org
Target Milestone: ---
On x86_64-apple-darwin, internal errors in the compiler are not displaying
backtraces.
For example this code:
$ cat ../../z1.f90
program p
type ta
integer :: a
end type
type t
type(ta), pointer :: b
end type
type(t) :: z
data z / t(ta(1)) /
end
is giving me:
$ ./f951 ../../z1.f90
p main
Analyzing compilation unit
f951: internal compiler error: in record_reference, at cgraphbuild.c:64
libbacktrace could not find executable to open
The message about not finding an executable is from fileline.c in
fileline_initialize(). There, it's trying to find the executable in several
steps.
- state->filename is NULL
- getexecname() is not available on darwin
- the /proc filesystem is not either
- the BSD-specific function sysctl_exec_name() is not present either
I am wondering how this is supposed to work. Probably state->filename should be
set in the first place.
