aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/debug.S20
-rw-r--r--arch/arm/kernel/elf.c9
2 files changed, 20 insertions, 9 deletions
diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S
index b121b6053cce..5c91addcaebc 100644
--- a/arch/arm/kernel/debug.S
+++ b/arch/arm/kernel/debug.S
@@ -49,6 +49,26 @@
491002: 491002:
50 .endm 50 .endm
51 51
52#elif defined(CONFIG_CPU_V7)
53
54 .macro addruart, rx
55 .endm
56
57 .macro senduart, rd, rx
58 mcr p14, 0, \rd, c0, c5, 0
59 .endm
60
61 .macro busyuart, rd, rx
62busy: mrc p14, 0, pc, c0, c1, 0
63 bcs busy
64 .endm
65
66 .macro waituart, rd, rx
67wait: mrc p14, 0, pc, c0, c1, 0
68 bcs wait
69
70 .endm
71
52#elif defined(CONFIG_CPU_XSCALE) 72#elif defined(CONFIG_CPU_XSCALE)
53 73
54 .macro addruart, rx 74 .macro addruart, rx
diff --git a/arch/arm/kernel/elf.c b/arch/arm/kernel/elf.c
index 950391f194c4..d4a0da1e48f4 100644
--- a/arch/arm/kernel/elf.c
+++ b/arch/arm/kernel/elf.c
@@ -78,15 +78,6 @@ int arm_elf_read_implies_exec(const struct elf32_hdr *x, int executable_stack)
78 return 1; 78 return 1;
79 if (cpu_architecture() < CPU_ARCH_ARMv6) 79 if (cpu_architecture() < CPU_ARCH_ARMv6)
80 return 1; 80 return 1;
81#if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT)
82 /*
83 * If we have support for OABI programs, we can never allow NX
84 * support - our signal syscall restart mechanism relies upon
85 * being able to execute code placed on the user stack.
86 */
87 return 1;
88#else
89 return 0; 81 return 0;
90#endif
91} 82}
92EXPORT_SYMBOL(arm_elf_read_implies_exec); 83EXPORT_SYMBOL(arm_elf_read_implies_exec);