Hello,
like I told in the irc channel, I found some problems trying
to build firefox and thunderbird. Both of them looked for
some symbols, _ARM_PCS_VFP or __ARM_PCS, and our toolchain
only defines __ARM_EABI__. With this patch we can give
gcc 4.5.2 these definitions.
The entire discussion and this patch can be found at [1].
<code>
--- gcc-4.5.2.orig//gcc/config/arm/arm.c 2011-07-14 17:25:05.000000000
+0000
+++ gcc-4.5.2//gcc/config/arm/arm.c 2011-07-14 17:31:26.000000000 +0000
@@ -700,7 +700,7 @@ static int after_arm_reorg = 0;
/* The maximum number of insns to be used when loading a constant. */
static int arm_constant_limit = 3;
-static enum arm_pcs arm_pcs_default;
+enum arm_pcs arm_pcs_default;
/* For an explanation of these variables, see final_prescan_insn below. */
int arm_ccfsm_state;
--- gcc-4.5.2/gcc/config/arm/arm.h.orig 2009-12-23 16:36:40.000000000 +0000
+++ gcc-4.5.2/gcc/config/arm/arm.h 2011-07-14 18:37:45.000000000 +0000
@@ -94,7 +94,13 @@
if (arm_arch_iwmmxt) \
builtin_define ("__IWMMXT__"); \
if (TARGET_AAPCS_BASED) \
- builtin_define ("__ARM_EABI__"); \
+ { \
+ if (arm_pcs_default == ARM_PCS_AAPCS_VFP) \
+ builtin_define ("__ARM_PCS_VFP"); \
+ else if (arm_pcs_default == ARM_PCS_AAPCS) \
+ builtin_define ("__ARM_PCS"); \
+ builtin_define ("__ARM_EABI__"); \
+ } \
} while (0)
/* The various ARM cores. */
@@ -1648,6 +1654,9 @@
ARM_PCS_UNKNOWN
};
+/* Default procedure calling standard of current compilation unit. */
+extern enum arm_pcs arm_pcs_default;
+
/* A C type for declaring a variable that is used as the first argument of
`FUNCTION_ARG' and other related values. */
typedef struct
</code>
I hope someone can check this and comment about. I need to rebuild the
entire system and make the test building those ports.
Any comments, suggestions or opinions are welcome.
Regards, Victor.
[1] http://gcc.gnu.org/ml/gcc-patches/2010-07/msg01654.html
---
Learning bit by bit
Victor Martinez | http://lokalix.dyndns.org
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