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| author | Andrew Cagney <cagney@redhat.com> | 2000-04-04 04:16:48 +0000 |
|---|---|---|
| committer | Andrew Cagney <cagney@redhat.com> | 2000-04-04 04:16:48 +0000 |
| commit | eb90a51f9d4756c52f40cf2f4b906e1f6abc646b (patch) | |
| tree | 9db43f4c91e7265a885c2db7d9307a83183e7d46 | |
| parent | d66c34e293ba1b0b0129729c3f8a2c46ad1567c8 (diff) | |
| download | gdb-eb90a51f9d4756c52f40cf2f4b906e1f6abc646b.zip gdb-eb90a51f9d4756c52f40cf2f4b906e1f6abc646b.tar.gz gdb-eb90a51f9d4756c52f40cf2f4b906e1f6abc646b.tar.bz2 | |
Stop GCC thinking a shift will overflow.
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/printcmd.c | 9 |
2 files changed, 11 insertions, 3 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index c30b5dd..98580a6 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +Tue Apr 4 12:13:19 2000 Andrew Cagney <cagney@b1.cygnus.com> + + * printcmd.c (print_scalar_formatted): Use local variable ptr_bit + in shift. Stop GCC thinking it has a shift overflow. + 2000-04-03 H.J. Lu <hjl@gnu.org> * TODO: Remove the regex entry. diff --git a/gdb/printcmd.c b/gdb/printcmd.c index 07139dd..5068cc9 100644 --- a/gdb/printcmd.c +++ b/gdb/printcmd.c @@ -445,10 +445,13 @@ print_scalar_formatted (valaddr, type, format, size, stream) case 'a': { /* Truncate address to the size of a target pointer, avoiding - shifts larger or equal than the width of a CORE_ADDR. */ + shifts larger or equal than the width of a CORE_ADDR. The + local variable PTR_BIT stops the compiler reporting a shift + overflow when it won't occure. */ CORE_ADDR addr = unpack_pointer (type, valaddr); - if (TARGET_PTR_BIT < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) - addr &= ((CORE_ADDR) 1 << TARGET_PTR_BIT) - 1; + int ptr_bit = TARGET_PTR_BIT; + if (ptr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) + addr &= ((CORE_ADDR) 1 << ptr_bit) - 1; print_address (addr, stream); } break; |