motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-09 02:24:58 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

display: avoid multi-statement macro

Browse source 
For blizzard, pl110 and tc6393xb this is harmless, but for pxa2xx
Coverity noticed that it is used inside an "if" statement.
Fix it because it's the file with the highest number of defects
in the whole QEMU tree!  Use "do...while (0)", or just remove the
semicolon if there's a single statement in the macro.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Paolo Bonzini 2014-01-31 14:47:33 +00:00 • committed by Peter Maydell
parent b48adc0d30
commit 2cdaca90dd
4 changed files with 59 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

12
hw/display/pl110_template.h
View file

@ -14,12 +14,16 @@
#if BITS == 8
#define COPY_PIXEL(to, from) *(to++) = from
#elif BITS == 15 || BITS == 16
#define COPY_PIXEL(to, from) *(uint16_t *)to = from; to += 2;
#define COPY_PIXEL(to, from) do { *(uint16_t *)to = from; to += 2; } while (0)
#elif BITS == 24
#define COPY_PIXEL(to, from) \
*(to++) = from; *(to++) = (from) >> 8; *(to++) = (from) >> 16
#define COPY_PIXEL(to, from) \
do { \
*(to++) = from; \
*(to++) = (from) >> 8; \
*(to++) = (from) >> 16; \
} while (0)
#elif BITS == 32
#define COPY_PIXEL(to, from) *(uint32_t *)to = from; to += 4;
#define COPY_PIXEL(to, from) do { *(uint32_t *)to = from; to += 4; } while (0)
#else
#error unknown bit depth
#endif