diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2019-10-15 23:07:51 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2019-10-15 23:08:36 +0200 |
| commit | fb1227583603bc6fefbdac5c1b1bf81cdf737d65 (patch) | |
| tree | a5bc6785527cf8bdc19e7ea5b27ceadae366edf5 /target/linux | |
| parent | fc597779adafc38a94c55798e42c11df610b7d4d (diff) | |
allow to build nds32 toolchain with old kernel
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/Config.in.kernelversion | 1 | ||||
| -rw-r--r-- | target/linux/patches/3.10-nds32/futex.patch | 40 |
2 files changed, 41 insertions, 0 deletions
diff --git a/target/linux/Config.in.kernelversion b/target/linux/Config.in.kernelversion index 7aa58467f..8ee00c734 100644 --- a/target/linux/Config.in.kernelversion +++ b/target/linux/Config.in.kernelversion @@ -7,6 +7,7 @@ config ADK_TARGET_LINUX_KERNEL_NEW choice prompt "Linux Kernel version" if !ADK_TARGET_CHOOSE_ARCH depends on ADK_TARGET_OS_LINUX +default ADK_TARGET_LINUX_KERNEL_VERSION_3_10_NDS32 if ADK_TARGET_ARCH_NDS32 default ADK_TARGET_LINUX_KERNEL_VERSION_GIT if ADK_TARGET_BOARD_BCM28XX default ADK_TARGET_LINUX_KERNEL_VERSION_GIT if ADK_TARGET_SYSTEM_SOLIDRUN_CLEARFOG default ADK_TARGET_LINUX_KERNEL_VERSION_GIT if ADK_TARGET_SYSTEM_KINETIS_K70 diff --git a/target/linux/patches/3.10-nds32/futex.patch b/target/linux/patches/3.10-nds32/futex.patch new file mode 100644 index 000000000..f45e04293 --- /dev/null +++ b/target/linux/patches/3.10-nds32/futex.patch @@ -0,0 +1,40 @@ +diff -Nur linux-3.10-nds32.orig/arch/nds32/include/asm/futex.h linux-3.10-nds32/arch/nds32/include/asm/futex.h +--- linux-3.10-nds32.orig/arch/nds32/include/asm/futex.h 2017-07-31 07:41:18.000000000 +0200 ++++ linux-3.10-nds32/arch/nds32/include/asm/futex.h 2019-10-15 22:59:44.514997184 +0200 +@@ -24,10 +24,10 @@ + #define __futex_atomic_op(insn, ret, oldval, tmp, uaddr, oparg) \ + smp_mb(); \ + asm volatile( \ +- " movi $r15, #0\n" \ +- "1: llw %1, [%2+$r15]\n" \ ++ " movi $ta, #0\n" \ ++ "1: llw %1, [%2+$ta]\n" \ + " " insn "\n" \ +- "2: scw %0, [%2+$r15]\n" \ ++ "2: scw %0, [%2+$ta]\n" \ + " beqz %0, 1b\n" \ + " movi %0, #0\n" \ + "3:\n" \ +@@ -47,18 +47,18 @@ + + smp_mb(); + asm volatile( +- " movi $r15, #0\n" +- "1: llw %1, [%6 + $r15]\n" ++ " movi $ta, #0\n" ++ "1: llw %1, [%6 + $ta]\n" + " sub %3, %1, %4\n" + " cmovz %2, %5, %3\n" + " cmovn %2, %1, %3\n" +- "2: scw %2, [%6 + $r15]\n" ++ "2: scw %2, [%6 + $ta]\n" + " beqz %2, 1b\n" + "3:\n " + __futex_atomic_ex_table("%7") + : "+&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (flags) + : "r" (oldval), "r" (newval), "r" (uaddr), "i" (-EFAULT) +- : "$r15", "memory"); ++ : "$ta", "memory"); + smp_mb(); + + *uval = val; |