Commit Graph

4 Commits

Author SHA1 Message Date
Anton Kolesov
cbffd50561 toolchain: Add config option for atomic intrinsics
GCC has several builtin functions that implement atomic operations. Those
functions are architecture specific and may not be implemented by the
specific toolchain. In case of GCC for ARC those functions rely on
LLOCK/SCOND instructions which are optional in ARC CPU's. If ARC CPU doesn't
support those instructions but software tries to use them, then application
will be aborted with Illegal instruction exception. To avoid confusion user
should first specify that their CPU supports atomic extension, which will
allow selection of packages that use builtin atomic functions.

Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2014-08-03 11:20:47 +02:00
Mischa Jonker
26cc49f6c6 Revert "arc: Add option for ARC-specific download site"
All packages use github now.

This reverts commit 1445b7fd2e.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2013-12-06 22:45:13 +01:00
Mischa Jonker
1445b7fd2e arc: Add option for ARC-specific download site
As ARC support is not yet in all upstream packages, a different location is
required to download the packages from. This adds an option to specify a
site for ARC-specific versions of packages such as binutils, gcc.

When ARC support has been upstreamed for all packages, this option can be
removed again.

Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-05-04 23:03:38 +02:00
Mischa Jonker
14f48861b5 arc: Add ARC and ARC BE architecture
Synopsys' DesignWare ARC Processor Cores are a family of 32-bit CPUs that
can be used from deeply embedded to high performance host applications.

Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-05-04 22:58:46 +02:00