43 lines
1.3 KiB
Diff
43 lines
1.3 KiB
Diff
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From c581e6037ec7ab2f9cd615f6ffa149b4d0a5638c Mon Sep 17 00:00:00 2001
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From: Baruch Siach <baruch@tkos.co.il>
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Date: Tue, 19 Jun 2018 15:31:52 +0300
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Subject: [PATCH] portable.h: fix build with gcc older than 4.8
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__builtin_bswap16 is available in all gcc architectures only since
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version 4.8. Older gcc versions fail to build:
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imx_sdp.o: In function `perform_dcd':
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.../imx_sdp.c:1138: undefined reference to `__builtin_bswap16'
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imx_sdp.o: In function `write_dcd_table_ivt':
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.../imx_sdp.c:457: undefined reference to `__builtin_bswap16'
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imx_sdp.o: In function `write_dcd':
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.../imx_sdp.c:410: undefined reference to `__builtin_bswap16'
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imx_sdp.o: In function `init_header':
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.../imx_sdp.c:1075: undefined reference to `__builtin_bswap16'
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Use a local implementation instead.
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
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---
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Upstream status: https://github.com/boundarydevices/imx_usb_loader/pull/82
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portable.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/portable.h b/portable.h
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index 364fe47b212a..364832b5ea69 100644
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--- a/portable.h
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+++ b/portable.h
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@@ -58,7 +58,7 @@ extern int debugmode;
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#ifdef __GNUC__
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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#define BE32(x) __builtin_bswap32(x)
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-#define BE16(x) __builtin_bswap16(x)
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+#define BE16(x) (x<<8 | x>>8)
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#else
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#define BE32(x) x
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#define BE16(x) x
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--
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2.17.1
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