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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-25 18:51:49 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-25 18:51:49 +0400
commit1dfd166e93f98892aa4427069a23ed73259983c8 (patch)
treec70a347b963091b99bd16842537153fa36e5c0e9 /arch/sh/kernel/ptrace.c
parent8e775167d54e6521e7cdbc03ee7ec42a8c67b49a (diff)
parent8df399018df120d28f89fda6f2515cc6e096e43d (diff)
downloadlinux-1dfd166e93f98892aa4427069a23ed73259983c8.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (110 commits) sh: i2c-sh7760: Replase from ctrl_* to __raw_* sh: clkfwk: Shuffle around to match the intc split up. sh: clkfwk: modify for_each_frequency end condition sh: fix clk_get() error handling sh: clkfwk: Fix fault in frequency iterator. sh: clkfwk: Add a helper for rate rounding by divisor ranges. sh: clkfwk: Abstract rate rounding helper. sh: clkfwk: support clock remapping. sh: pci: Convert to upper/lower_32_bits() helpers. sh: mach-sdk7786: Add support for the FPGA SRAM. sh: Provide a generic SRAM pool for tiny memories. sh: pci: Support secondary FPGA-driven PCIe clocks on SDK7786. sh: pci: Support slot 4 routing on SDK7786. sh: Fix up PMB locking. sh: mach-sdk7786: Add support for fpga gpios. sh: use pr_fmt for clock framework, too. sh: remove name and id from struct clk sh: free-without-alloc fix for sh_mobile_lcdcfb sh: perf: Set up perf_max_events. sh: perf: Support SH-X3 hardware counters. ... Fix up trivial conflicts (perf_max_events got removed) in arch/sh/kernel/perf_event.c
Diffstat (limited to 'arch/sh/kernel/ptrace.c')
-rw-r--r--arch/sh/kernel/ptrace.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c
new file mode 100644
index 000000000000..0a05983633ca
--- /dev/null
+++ b/arch/sh/kernel/ptrace.c
@@ -0,0 +1,33 @@
+#include <linux/ptrace.h>
+
+/**
+ * regs_query_register_offset() - query register offset from its name
+ * @name: the name of a register
+ *
+ * regs_query_register_offset() returns the offset of a register in struct
+ * pt_regs from its name. If the name is invalid, this returns -EINVAL;
+ */
+int regs_query_register_offset(const char *name)
+{
+ const struct pt_regs_offset *roff;
+ for (roff = regoffset_table; roff->name != NULL; roff++)
+ if (!strcmp(roff->name, name))
+ return roff->offset;
+ return -EINVAL;
+}
+
+/**
+ * regs_query_register_name() - query register name from its offset
+ * @offset: the offset of a register in struct pt_regs.
+ *
+ * regs_query_register_name() returns the name of a register from its
+ * offset in struct pt_regs. If the @offset is invalid, this returns NULL;
+ */
+const char *regs_query_register_name(unsigned int offset)
+{
+ const struct pt_regs_offset *roff;
+ for (roff = regoffset_table; roff->name != NULL; roff++)
+ if (roff->offset == offset)
+ return roff->name;
+ return NULL;
+}