diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-02-25 22:07:25 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-02-25 22:07:25 +0000 |
| commit | 186f93ea1f274f4cde4a356401c1786c818ff881 (patch) | |
| tree | de28f076c823d5423a5b4780f0d37554c242c982 /arch/arm/kernel | |
| parent | 3560adf62075829393743667ff338dd8fd26a5c2 (diff) | |
| parent | 4e6d488af37980d224cbf298224db6173673f362 (diff) | |
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.S | 30 | ||||
| -rw-r--r-- | arch/arm/kernel/elf.c | 9 |
2 files changed, 25 insertions, 14 deletions
diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S index b121b6053cc..a38b4879441 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 950391f194c..d4a0da1e48f 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); |