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Add some build fixes for kernel 2.6.21 and the infineon amazon target.

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Now it compiles with the new toolchain.
These are mostly backports from mainline linux and newer linux kernels from openwrt.

SVN-Revision: 18345
This commit is contained in:
Hauke Mehrtens 2009-11-08 21:56:59 +00:00
parent ae0457f76a
commit 343e9ffa20
8 changed files with 224 additions and 6 deletions
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1
target/linux/amazon/config-2.6.21
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@ -74,6 +74,7 @@ CONFIG_MIPS=y
# CONFIG_MIPS_DB1500 is not set
# CONFIG_MIPS_DB1550 is not set
# CONFIG_MIPS_EV64120 is not set
# CONFIG_MIPS_FPU_EMU is not set
CONFIG_MIPS_L1_CACHE_SHIFT=5
# CONFIG_MIPS_MALTA is not set
# CONFIG_MIPS_MIRAGE is not set

150
target/linux/generic-2.6/patches-2.6.21/024-mips_disable_fpu.patch Normal file
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@ -0,0 +1,150 @@
MIPS: allow disabling the kernel FPU emulator
This patch allows turning off the in-kernel Algorithmics
FPU emulator support, which allows one to save a couple of
precious blocks on an embedded system.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -938,6 +938,17 @@ config LIMITED_DMA
config MIPS_BONITO64
bool
+config MIPS_FPU_EMU
+ bool
+ default n
+ help
+ This option allows building a kernel with or without the Algorithmics
+ FPU emulator enabled. Turning off this option results in a kernel which
+ does not catch floating operations exceptions. Make sure that your toolchain
+ is configured to enable software floating point emulation in that case.
+
+ If unsure say Y here.
+
config MIPS_MSC
bool
--- a/arch/mips/math-emu/Makefile
+++ b/arch/mips/math-emu/Makefile
@@ -1,11 +1,12 @@
#
# Makefile for the Linux/MIPS kernel FPU emulation.
#
+obj-y := kernel_linkage.o dsemul.o cp1emu.o
-obj-y := cp1emu.o ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \
+obj-$(CONFIG_MIPS_FPU_EMU) += ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \
ieee754xcpt.o dp_frexp.o dp_modf.o dp_div.o dp_mul.o dp_sub.o \
dp_add.o dp_fsp.o dp_cmp.o dp_logb.o dp_scalb.o dp_simple.o \
dp_tint.o dp_fint.o dp_tlong.o dp_flong.o sp_frexp.o sp_modf.o \
sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_logb.o \
sp_scalb.o sp_simple.o sp_tint.o sp_fint.o sp_tlong.o sp_flong.o \
- dp_sqrt.o sp_sqrt.o kernel_linkage.o dsemul.o
+ dp_sqrt.o sp_sqrt.o
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -56,6 +56,12 @@
#endif
#define __mips 4
+/* Further private data for which no space exists in mips_fpu_struct */
+
+struct mips_fpu_emulator_stats fpuemustats;
+
+#ifdef CONFIG_MIPS_FPU_EMU
+
/* Function which emulates a floating point instruction. */
static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *,
@@ -66,10 +72,6 @@ static int fpux_emu(struct pt_regs *,
struct mips_fpu_struct *, mips_instruction);
#endif
-/* Further private data for which no space exists in mips_fpu_struct */
-
-struct mips_fpu_emulator_stats fpuemustats;
-
/* Control registers */
#define FPCREG_RID 0 /* $0 = revision id */
@@ -1277,3 +1279,10 @@ int fpu_emulator_cop1Handler(struct pt_r
return sig;
}
+#else
+int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
+ int has_fpu)
+{
+ return 0;
+}
+#endif /* CONFIG_MIPS_FPU_EMU */
--- a/arch/mips/math-emu/dsemul.c
+++ b/arch/mips/math-emu/dsemul.c
@@ -112,6 +112,7 @@ int mips_dsemul(struct pt_regs *regs, mi
return SIGILL; /* force out of emulation loop */
}
+#ifdef CONFIG_MIPS_FPU_EMU
int do_dsemulret(struct pt_regs *xcp)
{
struct emuframe *fr;
@@ -167,3 +168,9 @@ int do_dsemulret(struct pt_regs *xcp)
return 1;
}
+#else
+int do_dsemulret(struct pt_regs *xcp)
+{
+ return 0;
+}
+#endif /* CONFIG_MIPS_FPU_EMU */
--- a/arch/mips/math-emu/kernel_linkage.c
+++ b/arch/mips/math-emu/kernel_linkage.c
@@ -28,6 +28,7 @@
#define SIGNALLING_NAN 0x7ff800007ff80000LL
+#ifdef CONFIG_MIPS_FPU_EMU
void fpu_emulator_init_fpu(void)
{
static int first = 1;
@@ -111,4 +112,36 @@ int fpu_emulator_restore_context32(struc
return err;
}
-#endif
+#endif /* CONFIG_64BIT */
+#else
+
+void fpu_emulator_init_fpu(void)
+{
+ printk(KERN_INFO "FPU emulator disabled, make sure your toolchain"
+ "was compiled with software floating point support (soft-float)\n");
+ return;
+}
+
+int fpu_emulator_save_context(struct sigcontext __user *sc)
+{
+ return 0;
+}
+
+int fpu_emulator_restore_context(struct sigcontext __user *sc)
+{
+ return 0;
+}
+
+int fpu_emulator_save_context32(struct sigcontext32 __user *sc)
+{
+ return 0;
+}
+
+int fpu_emulator_restore_context32(struct sigcontext32 __user *sc)
+{
+ return 0;
+}
+
+#ifdef CONFIG_64BIT
+#endif /* CONFIG_64BIT */
+#endif /* CONFIG_MIPS_FPU_EMU */

2
target/linux/generic-2.6/patches-2.6.21/150-netfilter_imq.patch
View File

@ -735,7 +735,7 @@
depends on IP_NF_MANGLE
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -98,6 +98,7 @@ obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ip
@@ -97,6 +97,7 @@ obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ip
obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o
obj-$(CONFIG_IP_NF_TARGET_TOS) += ipt_TOS.o
obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_ECN.o

8
target/linux/generic-2.6/patches-2.6.21/160-netfilter_route.patch
View File

@ -538,9 +538,9 @@
+module_exit(fini);
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -825,5 +825,22 @@ config IP_NF_TARGET_SET
To compile it as a module, choose M here. If unsure, say N.
@@ -684,5 +684,22 @@ config IP_NF_ARP_MANGLE
Allows altering the ARP packet payload: source and destination
hardware and network addresses.
+config IP_NF_TARGET_ROUTE
+ tristate 'ROUTE target support'
@ -563,7 +563,7 @@
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -101,6 +101,7 @@ obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_EC
@@ -100,6 +100,7 @@ obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_EC
obj-$(CONFIG_IP_NF_TARGET_IMQ) += ipt_IMQ.o
obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += ipt_MASQUERADE.o
obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o

29
target/linux/generic-2.6/patches-2.6.21/30-fix_conflicting_getline.patch Normal file
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@ -0,0 +1,29 @@
--- a/scripts/unifdef.c
+++ b/scripts/unifdef.c
@@ -206,7 +206,7 @@ static void done(void);
static void error(const char *);
static int findsym(const char *);
static void flushline(bool);
-static Linetype getline(void);
+static Linetype get_line(void);
static Linetype ifeval(const char **);
static void ignoreoff(void);
static void ignoreon(void);
@@ -512,7 +512,7 @@ process(void)
for (;;) {
linenum++;
- lineval = getline();
+ lineval = get_line();
trans_table[ifstate[depth]][lineval]();
debug("process %s -> %s depth %d",
linetype_name[lineval],
@@ -526,7 +526,7 @@ process(void)
* help from skipcomment().
*/
static Linetype
-getline(void)
+get_line(void)
{
const char *cp;
int cursym;

21
target/linux/generic-2.6/patches-2.6.21/31-use_kbuild.h.patch Normal file
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@ -0,0 +1,21 @@
[MIPS] Fix computation of {PGD,PMD,PTE}_T_LOG2.
For the generation of asm-offset.h to work these need to be evaulatable
by gcc as a constant expression. This issue did exist for a while but
didn't bite because they're only in asm-offset.h for debugging purposes.
--- a/include/asm-mips/pgtable.h
+++ b/include/asm-mips/pgtable.h
@@ -168,9 +168,9 @@ static inline void pte_clear(struct mm_s
#define set_pud(pudptr, pudval) do { *(pudptr) = (pudval); } while(0)
#endif
-#define PGD_T_LOG2 ffz(~sizeof(pgd_t))
-#define PMD_T_LOG2 ffz(~sizeof(pmd_t))
-#define PTE_T_LOG2 ffz(~sizeof(pte_t))
+#define PGD_T_LOG2 (__builtin_ffs(sizeof(pgd_t)) - 1)
+#define PMD_T_LOG2 (__builtin_ffs(sizeof(pmd_t)) - 1)
+#define PTE_T_LOG2 (__builtin_ffs(sizeof(pte_t)) - 1)
extern pgd_t swapper_pg_dir[PTRS_PER_PGD];

17
target/linux/generic-2.6/patches-2.6.21/32-time_fix_timespec_add_ns.patch Normal file
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@ -0,0 +1,17 @@
time: prevent the loop in timespec_add_ns() from being optimised away
Since some architectures don't support __udivdi3().
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -170,6 +170,10 @@ static inline void timespec_add_ns(struc
{
ns += a->tv_nsec;
while(unlikely(ns >= NSEC_PER_SEC)) {
+ /* The following asm() prevents the compiler from
+ * optimising this loop into a modulo operation. */
+ asm("" : "+r"(ns));
+
ns -= NSEC_PER_SEC;
a->tv_sec++;
}

2
target/linux/generic-2.6/patches-2.6.21/900-headers_type_and_time.patch
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@ -11,7 +11,7 @@
#include <linux/types.h>
#ifdef __KERNEL__
@@ -224,4 +228,6 @@ struct itimerval {
@@ -228,4 +232,6 @@ struct itimerval {
*/
#define TIMER_ABSTIME 0x01