https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112811
Bug ID: 112811
Summary: ICE in -fanalyzer in has_null_terminator
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: analyzer
Assignee: dmalcolm at gcc dot gnu.org
Reporter: dmalcolm at gcc dot gnu.org
Blocks: 106358
Target Milestone: ---
-fanalyzer with trunk ICEs on:
struct foo_laptop_debug {
struct dentry *root;
unsigned long size;
};
struct foo_laptop {
void *placeholder;
struct foo_laptop_debug debug;
char sdiag[64];
};
extern struct dentry *debugfs_create_dir(void);
void foo_debugfs_init(struct foo_laptop *foo) {
struct dentry *root;
root = debugfs_create_dir();
foo->debug.root = root;
foo->debug.size = __builtin_strlen(foo->sdiag);
}
during IPA pass: analyzer
t.c: In function ‘foo_debugfs_init’:
t.c:17:21: internal compiler error: in has_null_terminator, at
analyzer/region-model.cc:3523
17 | foo->debug.size = __builtin_strlen(foo->sdiag);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
0x1495415
ana::fragment::has_null_terminator(generic_wide_int<fixed_wide_int_storage<128>
>, generic_wide_int<fixed_wide_int_storage<128> >*) const
../../src/gcc/analyzer/region-model.cc:3523
0x1495322
ana::fragment::has_null_terminator(generic_wide_int<fixed_wide_int_storage<128>
>, generic_wide_int<fixed_wide_int_storage<128> >*) const
../../src/gcc/analyzer/region-model.cc:3602
0x1484e6c ana::region_model::scan_for_null_terminator(ana::region const*,
tree_node*, ana::svalue const**, ana::region_model_context*) const
../../src/gcc/analyzer/region-model.cc:3833
0x1485695
ana::region_model::check_for_null_terminated_string_arg(ana::call_details
const&, unsigned int, bool, ana::svalue const**) const
../../src/gcc/analyzer/region-model.cc:4054
0x146703b ana::kf_strlen::impl_call_pre(ana::call_details const&) const
../../src/gcc/analyzer/kf.cc:1392
0x1481c4c ana::region_model::on_call_pre(gcall const*,
ana::region_model_context*)
../../src/gcc/analyzer/region-model.cc:1651
0x1486b9a ana::region_model::on_stmt_pre(gimple const*, bool*,
ana::region_model_context*)
../../src/gcc/analyzer/region-model.cc:1300
0x144ceb5 ana::exploded_node::on_stmt(ana::exploded_graph&, ana::supernode
const*, gimple const*, ana::program_state*, ana::uncertainty_t*, bool*, \
ana::path_context*)
../../src/gcc/analyzer/engine.cc:1507
0x144f680 ana::exploded_graph::process_node(ana::exploded_node*)
../../src/gcc/analyzer/engine.cc:4123
0x145035a ana::exploded_graph::process_worklist()
../../src/gcc/analyzer/engine.cc:3512
0x1452330 ana::impl_run_checkers(ana::logger*)
../../src/gcc/analyzer/engine.cc:6206
0x14532c6 ana::run_checkers()
../../src/gcc/analyzer/engine.cc:6297
0x14445ec execute
../../src/gcc/analyzer/analyzer-pass.cc:87
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Trunk (for gcc 14): https://godbolt.org/z/Pc5heGh7e
Doesn't affect gcc 13
(reduced from ICE on linux kernel: 'samsung_debugfs_init' at
drivers/platform/x86/samsung-laptop.c:1292:38)
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106358
[Bug 106358] [meta-bug] tracker bug for building the Linux kernel with
-fanalyzer
