f6d7884ea7
Update to v4.0.0 OBS-URL: https://build.opensuse.org/request/show/699951 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=464
37 lines
1.2 KiB
Diff
37 lines
1.2 KiB
Diff
ipxe: use gcc6 for more compact code
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We have a strict size limit of 64K which needs to be enforced for
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pxe-virtio.rom for migration compatibility. The v4.8 gcc compiler
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used in SLE12 doesn't produce as compact code as does more recent
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gcc compilers, and the pxe-virtio.rom produced with it doesn't fit
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in 64K anymore without taking extraordinary efforts. I was unable
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to find enough opportunities in the ipxe code and data to reduce
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its size, and found that using a more recent compiler would be the
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best solution to keeping the rom size within the 64K size limit.
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I also discovered that $(WORKAROUND_CFLAGS) is specific to CC, but
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gets used with HOST_CC, so we'd better keep those the same version
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to not get in trouble with different supported options.
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Signed-off-by: Bruce Rogers <brogers@suse.com>
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--- a/src/Makefile
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+++ b/src/Makefile
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@@ -15,7 +15,7 @@ CROSS_COMPILE ?= $(CROSS)
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#
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# Locations of tools
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#
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-HOST_CC := gcc
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+HOST_CC := gcc-6
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RM := rm -f
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TOUCH := touch
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MKDIR := mkdir
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@@ -24,7 +24,7 @@ ECHO := echo
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PRINTF := printf
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PERL := perl
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TRUE := true
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-CC := $(CROSS_COMPILE)gcc
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+CC := $(CROSS_COMPILE)gcc-6
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CPP := $(CC) -E
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AS := $(CROSS_COMPILE)as
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LD := $(CROSS_COMPILE)ld
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