Tom de Vries
13d4a4bd5a
[gdb/testsuite] Fix gdb.threads/schedlock.exp for gcc 4.8.5
...
Since commit 9af467b8240 ("[gdb/testsuite] Fix gdb.threads/schedlock.exp on
fast cpu"), the test-case fails for gcc 4.8.5.
The problem is that for gcc 4.8.5, the commit turned a two-line loop:
...
(gdb) next
78 while (*myp > 0)
(gdb) next
81 MAYBE_CALL_SOME_FUNCTION(); (*myp) ++;
(gdb) next
78 while (*myp > 0)
...
into a three-line loop:
...
(gdb) next
83 MAYBE_CALL_SOME_FUNCTION(); (*myp) ++;
(gdb) next
84 cnt++;
(gdb) next
85 }
(gdb) next
83 MAYBE_CALL_SOME_FUNCTION(); (*myp) ++;
(gdb)
...
and the test-case doesn't expect this.
Fix this by reverting back to the original loop shape as much as possible by:
- removing the cnt++ line
- replacing "while (1)" with "while (one)", where one is a volatile variable
set to 1.
Tested on x86_64-linux, using compilers:
- gcc 4.8.5, 7.5.0, 12.2.1
- clang 4.0.1, 13.0.1
2023-02-20 11:16:02 +01:00
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