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| author | Andrew Cagney <cagney@redhat.com> | 2002-02-13 19:00:47 +0000 |
|---|---|---|
| committer | Andrew Cagney <cagney@redhat.com> | 2002-02-13 19:00:47 +0000 |
| commit | 93a8f0782b4fa1e41b5837029eb737ea59656c22 (patch) | |
| tree | f794fc3728ac4d056636efa3be7b72614cff3277 /gdb/memattr.c | |
| parent | 1f8fc00aba75d564920db400130b10c168d92fe6 (diff) | |
| download | gdb-93a8f0782b4fa1e41b5837029eb737ea59656c22.tar.gz | |
From 2002-01-18 Greg McGary <greg@mcgary.org>:
* (create_mem_region): Disallow useless empty region. Regions are
half-open intervals, so allow [A..B) [B..C) as non-overlapping.
Diffstat (limited to 'gdb/memattr.c')
| -rw-r--r-- | gdb/memattr.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/gdb/memattr.c b/gdb/memattr.c index e8eb56a458b..8d7b0d8c558 100644 --- a/gdb/memattr.c +++ b/gdb/memattr.c @@ -45,9 +45,10 @@ create_mem_region (CORE_ADDR lo, CORE_ADDR hi, { struct mem_region *n, *new; - if (lo > hi) + /* lo == hi is a useless empty region */ + if (lo >= hi) { - printf_unfiltered ("invalid memory region\n"); + printf_unfiltered ("invalid memory region: low >= high\n"); return NULL; } @@ -55,8 +56,8 @@ create_mem_region (CORE_ADDR lo, CORE_ADDR hi, while (n) { /* overlapping node */ - if ((lo >= n->lo && lo <= n->hi) || - (hi >= n->lo && hi <= n->hi)) + if ((lo >= n->lo && lo < n->hi) || + (hi > n->lo && hi <= n->hi)) { printf_unfiltered ("overlapping memory region\n"); return NULL; |