Hello Simon,
While trying to find a u-boot make command which likely works with a
pre-build clang linux package I got the following warnings:
`make CC="clang -no-integrated-as" HOSTCC="clang -no-integrated-as"
HOST_TOOLS_ALL=y sandbox_config tools`
/home/jeroen/software/u-boot/arch/sandbox/include/asm/bitops.h:59:17:
warning: variable 'flags' is uninitialized when used here
[-Wuninitialized]
local_irq_save(flags);
^~~~~
/home/jeroen/software/u-boot/arch/sandbox/include/asm/bitops.h:56:21:
note: initialize the variable 'flags' to silence this warning
unsigned long flags;
^
= 0
/home/jeroen/software/u-boot/arch/sandbox/include/asm/bitops.h:81:17:
warning: variable 'flags' is uninitialized when used here
[-Wuninitialized]
local_irq_save(flags);
^~~~~
/home/jeroen/software/u-boot/arch/sandbox/include/asm/bitops.h:78:21:
note: initialize the variable 'flags' to silence this warning
unsigned long flags;
^
= 0
I guess gcc accepts this since flags is not actually used. Anyway merely
mentioned for completeness. You might be interested in:
/home/jeroen/software/u-boot/tools/../lib/rsa/rsa-sign.c:77:6: warning:
variable 'ret' is used uninitialized whenever 'if' condition is true
[-Wsometimes-uninitialized]
if (!rsa) {
^~~~
/home/jeroen/software/u-boot/tools/../lib/rsa/rsa-sign.c:94:9: note:
uninitialized use occurs here
return ret;
^~~
/home/jeroen/software/u-boot/tools/../lib/rsa/rsa-sign.c:77:2: note:
remove the 'if' if its condition is always false
if (!rsa) {
^~~~~~~~~~~
/home/jeroen/software/u-boot/tools/../lib/rsa/rsa-sign.c:48:9: note:
initialize the variable 'ret' to silence this warning
int ret;
^
= 0
which actually looks like a bug. And:
/home/jeroen/software/u-boot/tools/../lib/rsa/rsa-verify.c:59:27:
warning: comparison of unsigned expression >= 0 is always true
[-Wtautological-compare]
for (i = key->len - 1; i >= 0; i--) {
~ ^ ~
which looks a bit odd, especially since there is no way to break out of
the loop and reach the final return statement, which has a comment to
that it might be useful (equal).
Regards,
Jeroen
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