diff options
| author | Jan Beulich <jbeulich@novell.com> | 2008-05-12 15:44:41 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-05-25 07:09:47 +0200 |
| commit | 63687a528c39a67c1a213cdffa09feb0e6af9dbe (patch) | |
| tree | 0a21067f84d2495d37cc6fe864675db53ca56630 /include | |
| parent | 75d3bce2fc0a80f435fe12f2c9ed2632c8ac29e4 (diff) | |
| download | op-kernel-dev-63687a528c39a67c1a213cdffa09feb0e6af9dbe.zip op-kernel-dev-63687a528c39a67c1a213cdffa09feb0e6af9dbe.tar.gz | |
x86: move tracedata to RODATA
.. allowing it to be write-protected just as other read-only data
under CONFIG_DEBUG_RODATA.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 14 | ||||
| -rw-r--r-- | include/asm-x86/resume-trace.h | 2 | ||||
| -rw-r--r-- | include/linux/resume-trace.h | 2 |
3 files changed, 16 insertions, 2 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index f054778..f1992dc 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -93,6 +93,8 @@ VMLINUX_SYMBOL(__end_rio_route_ops) = .; \ } \ \ + TRACEDATA \ + \ /* Kernel symbol table: Normal symbols */ \ __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___ksymtab) = .; \ @@ -318,6 +320,18 @@ __stop___bug_table = .; \ } +#ifdef CONFIG_PM_TRACE +#define TRACEDATA \ + . = ALIGN(4); \ + .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { \ + __tracedata_start = .; \ + *(.tracedata) \ + __tracedata_end = .; \ + } +#else +#define TRACEDATA +#endif + #define NOTES \ .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start_notes) = .; \ diff --git a/include/asm-x86/resume-trace.h b/include/asm-x86/resume-trace.h index 2557514..8d9f0b4 100644 --- a/include/asm-x86/resume-trace.h +++ b/include/asm-x86/resume-trace.h @@ -6,7 +6,7 @@ #define TRACE_RESUME(user) \ do { \ if (pm_trace_enabled) { \ - void *tracedata; \ + const void *tracedata; \ asm volatile(_ASM_MOV_UL " $1f,%0\n" \ ".section .tracedata,\"a\"\n" \ "1:\t.word %c1\n\t" \ diff --git a/include/linux/resume-trace.h b/include/linux/resume-trace.h index f3f4f28..c9ba2fd 100644 --- a/include/linux/resume-trace.h +++ b/include/linux/resume-trace.h @@ -8,7 +8,7 @@ extern int pm_trace_enabled; struct device; extern void set_trace_device(struct device *); -extern void generate_resume_trace(void *tracedata, unsigned int user); +extern void generate_resume_trace(const void *tracedata, unsigned int user); #define TRACE_DEVICE(dev) do { \ if (pm_trace_enabled) \ |
