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| author | Alan Modra <amodra@gmail.com> | 2021-12-07 12:26:55 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2021-12-07 16:10:22 +1030 |
| commit | 43908c16539f486d0b1afc43329bf59d1c3cdd20 (patch) | |
| tree | 916a93ce4f3c4248d99f6eff20036fde6444d7c6 /ld/ldlang.c | |
| parent | 21ce5fa063563cb254e0560beb98bd4245b99fb1 (diff) | |
| download | gdb-43908c16539f486d0b1afc43329bf59d1c3cdd20.zip gdb-43908c16539f486d0b1afc43329bf59d1c3cdd20.tar.gz gdb-43908c16539f486d0b1afc43329bf59d1c3cdd20.tar.bz2 | |
Error on ld output file name matching input file name
It's not foolproof, for example we don't catch output to a linker
script, to a library specified with -l, or to an element of a thin
archive.
* ldlang.c (open_output): Exit with error on output file matching
an input file.
* testsuite/ld-misc/just-symbols.exp: Adjust ld -r test to suit.
Diffstat (limited to 'ld/ldlang.c')
| -rw-r--r-- | ld/ldlang.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/ld/ldlang.c b/ld/ldlang.c index acd90fa..64a8f60 100644 --- a/ld/ldlang.c +++ b/ld/ldlang.c @@ -3392,6 +3392,22 @@ lang_get_output_target (void) static void open_output (const char *name) { + lang_input_statement_type *f; + char *out = lrealpath (name); + + for (f = (void *) input_file_chain.head; + f != NULL; + f = f->next_real_file) + if (f->flags.real) + { + char *in = lrealpath (f->filename); + if (filename_cmp (in, out) == 0) + einfo (_("%F%P: input file '%s' is the same as output file\n"), + f->filename); + free (in); + } + free (out); + output_target = lang_get_output_target (); /* Has the user requested a particular endianness on the command |