patches/uClibc/0.9.28.3/140-custom-ISA.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892 aa934ec4b4ee
parent 6 4267d95819bd
permissions -rw-r--r--
cc/gcc: add the backend/frontend infra for final gcc

Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.

This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.

By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.

This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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diff -dur uClibc-0.9.28.orig/Rules.mak uClibc-0.9.28/Rules.mak
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--- uClibc-0.9.28.orig/Rules.mak	2005-08-18 00:49:49.000000000 +0200
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+++ uClibc-0.9.28/Rules.mak	2007-01-30 10:53:34.000000000 +0100
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@@ -168,6 +168,7 @@
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 	CPU_CFLAGS-$(CONFIG_MIPS_ISA_4)+=-mips4 -mtune=mips4
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 	CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS32)+=-mips32 -mtune=mips32
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 	CPU_CFLAGS-$(CONFIG_MIPS_ISA_MIPS64)+=-mips64 -mtune=mips32
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+	CPU_CFLAGS-$(CONFIG_MIPS_ISA_CUSTOM)+=-march=$(CONFIG_MIPS_CPU_CFLAGS_CUSTOM)
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 endif
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 ifeq ($(strip $(TARGET_ARCH)),sh)
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diff -dur uClibc-0.9.28.orig/extra/Configs/Config.mips uClibc-0.9.28/extra/Configs/Config.mips
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--- uClibc-0.9.28.orig/extra/Configs/Config.mips	2005-08-18 00:49:41.000000000 +0200
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+++ uClibc-0.9.28/extra/Configs/Config.mips	2007-01-30 10:52:12.000000000 +0100
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@@ -63,4 +63,16 @@
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 config CONFIG_MIPS_ISA_MIPS64
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 	bool "MIPS64"
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+config CONFIG_MIPS_ISA_CUSTOM
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+	bool "Custom"
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+
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 endchoice
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+
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+config CONFIG_MIPS_CPU_CFLAGS_CUSTOM
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+	string
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+	prompt "Custon ISA"
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+	depends on CONFIG_MIPS_ISA_CUSTOM
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+	default ""
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+	help
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+	  Enter your custom ISA here (eg: lx4189!).
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+