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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-02-25 22:07:25 (GMT)
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-02-25 22:07:25 (GMT)
commit186f93ea1f274f4cde4a356401c1786c818ff881 (patch)
treede28f076c823d5423a5b4780f0d37554c242c982 /arch/arm/kernel
parent3560adf62075829393743667ff338dd8fd26a5c2 (diff)
parent4e6d488af37980d224cbf298224db6173673f362 (diff)
downloadlinux-186f93ea1f274f4cde4a356401c1786c818ff881.tar.xz
Merge branch 'tmpreg' into devel
Conflicts: arch/arm/Kconfig arch/arm/mach-ux500/include/mach/debug-macro.S
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/debug.S30
-rw-r--r--arch/arm/kernel/elf.c9
2 files changed, 25 insertions, 14 deletions
diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S
index b121b60..a38b487 100644
--- a/arch/arm/kernel/debug.S
+++ b/arch/arm/kernel/debug.S
@@ -24,7 +24,7 @@
#if defined(CONFIG_CPU_V6)
- .macro addruart, rx
+ .macro addruart, rx, tmp
.endm
.macro senduart, rd, rx
@@ -49,9 +49,29 @@
1002:
.endm
+#elif defined(CONFIG_CPU_V7)
+
+ .macro addruart, rx, tmp
+ .endm
+
+ .macro senduart, rd, rx
+ mcr p14, 0, \rd, c0, c5, 0
+ .endm
+
+ .macro busyuart, rd, rx
+busy: mrc p14, 0, pc, c0, c1, 0
+ bcs busy
+ .endm
+
+ .macro waituart, rd, rx
+wait: mrc p14, 0, pc, c0, c1, 0
+ bcs wait
+
+ .endm
+
#elif defined(CONFIG_CPU_XSCALE)
- .macro addruart, rx
+ .macro addruart, rx, tmp
.endm
.macro senduart, rd, rx
@@ -78,7 +98,7 @@
#else
- .macro addruart, rx
+ .macro addruart, rx, tmp
.endm
.macro senduart, rd, rx
@@ -144,7 +164,7 @@ ENDPROC(printhex2)
.ltorg
ENTRY(printascii)
- addruart r3
+ addruart r3, r1
b 2f
1: waituart r2, r3
senduart r1, r3
@@ -160,7 +180,7 @@ ENTRY(printascii)
ENDPROC(printascii)
ENTRY(printch)
- addruart r3
+ addruart r3, r1
mov r1, r0
mov r0, #0
b 1b
diff --git a/arch/arm/kernel/elf.c b/arch/arm/kernel/elf.c
index 950391f..d4a0da1 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)
return 1;
if (cpu_architecture() < CPU_ARCH_ARMv6)
return 1;
-#if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT)
- /*
- * If we have support for OABI programs, we can never allow NX
- * support - our signal syscall restart mechanism relies upon
- * being able to execute code placed on the user stack.
- */
- return 1;
-#else
return 0;
-#endif
}
EXPORT_SYMBOL(arm_elf_read_implies_exec);