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| author | Will Deacon <will.deacon@arm.com> | 2015-02-25 12:10:35 +0000 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2016-03-29 08:35:43 -0400 |
| commit | 57cec70519450cdba5c3c90cf3391b615830d1f4 (patch) | |
| tree | 6fdb4d70f0bffa3b0090f8e6a035d5ed678fcbee /README | |
| parent | 1267e34aa05252245591b6e47857fcb87ef7bd01 (diff) | |
| download | lwn-57cec70519450cdba5c3c90cf3391b615830d1f4.tar.gz lwn-57cec70519450cdba5c3c90cf3391b615830d1f4.zip | |
arm64: psci: move psci firmware calls out of line
[ Upstream commit f5e0a12ca2d939e47995f73428d9bf1ad372b289 ]
An arm64 allmodconfig fails to build with GCC 5 due to __asmeq
assertions in the PSCI firmware calling code firing due to mcount
preambles breaking our assumptions about register allocation of function
arguments:
/tmp/ccDqJsJ6.s: Assembler messages:
/tmp/ccDqJsJ6.s:60: Error: .err encountered
/tmp/ccDqJsJ6.s:61: Error: .err encountered
/tmp/ccDqJsJ6.s:62: Error: .err encountered
/tmp/ccDqJsJ6.s:99: Error: .err encountered
/tmp/ccDqJsJ6.s:100: Error: .err encountered
/tmp/ccDqJsJ6.s:101: Error: .err encountered
This patch fixes the issue by moving the PSCI calls out-of-line into
their own assembly files, which are safe from the compiler's meddling
fingers.
Reported-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'README')
0 files changed, 0 insertions, 0 deletions