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binutils-gdb
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Stop the assembler from overwriting its output file. 

* as.c (main): Fail if the output is the same as one of the input
	files.
	* testsuite/gas/all/gas.exp: Test the new feature.
This commit is contained in:
John Darrington 2018-04-12 15:07:02 +01:00 committed by Nick Clifton
parent 73a05be215
commit 67f846b59b
3 changed files with 30 additions and 0 deletions
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6
gas/ChangeLog
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@ -1,3 +1,9 @@
2018-04-12 John Darrington <john@darrington.wattle.id.au>
* as.c (main): Fail if the output is the same as one of the input
files.
* testsuite/gas/all/gas.exp: Test the new feature.
2018-04-12 Nick Clifton <nickc@redhat.com>
* po/es.po: Updated Spanish translation.

22
gas/as.c
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@ -1171,6 +1171,7 @@ int
main (int argc, char ** argv)
{
char ** argv_orig = argv;
struct stat sob;
int macro_strip_at;
@ -1218,6 +1219,27 @@ main (int argc, char ** argv)
/* Call parse_args before any of the init/begin functions
so that switches like --hash-size can be honored. */
parse_args (&argc, &argv);
if (argc > 1 && stat (out_file_name, &sob) == 0)
{
int i;
for (i = 1; i < argc; ++i)
{
struct stat sib;
if (stat (argv[i], &sib) == 0)
{
if (sib.st_ino == sob.st_ino)
{
/* Don't let as_fatal remove the output file! */
out_file_name = NULL;
as_fatal (_("The input and output files must be distinct"));
}
}
}
}
symbol_begin ();
frag_init ();
subsegs_begin ();

2
gas/testsuite/gas/all/gas.exp
View File

@ -73,6 +73,8 @@ if { ![istarget alpha*-*-*vms*]
gas_test_error "equiv1.s" "" ".equiv for symbol already set to another one"
gas_test_error "equiv2.s" "" ".equiv for symbol already set to an expression"
gas_test_error "none.s" "-o $srcdir/$subdir/none.s" "Output file must be distinct from input"
# .equ works differently on some targets.
case $target_triplet in {
{ hppa*-*-* } { }