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| author | Michael Brown | 2017-07-28 14:50:35 +0200 |
|---|---|---|
| committer | Michael Brown | 2017-07-28 14:50:35 +0200 |
| commit | 1a7746603bca1022b63c406c9459525312a2b2b6 (patch) | |
| tree | 7cffc520efda73bb1b1e1fd20ce6cac03fbe11d7 /src/interface | |
| parent | [build] Conditionalise use of -mabi=lp64 for ARM64 builds (diff) | |
| download | ipxe-1a7746603bca1022b63c406c9459525312a2b2b6.tar.gz ipxe-1a7746603bca1022b63c406c9459525312a2b2b6.tar.xz ipxe-1a7746603bca1022b63c406c9459525312a2b2b6.zip | |
[build] Fix use of inline assembly on GCC 4.8 ARM64 builds
The inline assembly used in include/errno.h to generate the einfo
blocks requires the ability to generate an immediate constant with no
immediate-value prefix (such as the dollar sign for x86 assembly).
We currently achieve this via the undocumented "%c0" form of operand.
This causes an "invalid operand prefix" error on GCC 4.8 for ARM64
builds.
Fix by switching to the equally undocumented "%a0" form of operand,
which appears to work correctly on all tested versions of GCC.
Reported-by: Benjamin S. Allen <bsallen@alcf.anl.gov>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/interface')
0 files changed, 0 insertions, 0 deletions