eaaaeef392
This follows the x86/ppc changes for kprobe-based event tracing on sh. While kprobes is only supported on 32-bit sh, we provide the API for HAVE_REGS_AND_STACK_ACCESS_API for both 32 and 64-bit. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
34 lines
1012 B
C
34 lines
1012 B
C
#include <linux/ptrace.h>
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/**
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* regs_query_register_offset() - query register offset from its name
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* @name: the name of a register
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*
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* regs_query_register_offset() returns the offset of a register in struct
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* pt_regs from its name. If the name is invalid, this returns -EINVAL;
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*/
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int regs_query_register_offset(const char *name)
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{
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const struct pt_regs_offset *roff;
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for (roff = regoffset_table; roff->name != NULL; roff++)
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if (!strcmp(roff->name, name))
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return roff->offset;
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return -EINVAL;
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}
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/**
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* regs_query_register_name() - query register name from its offset
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* @offset: the offset of a register in struct pt_regs.
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*
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* regs_query_register_name() returns the name of a register from its
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* offset in struct pt_regs. If the @offset is invalid, this returns NULL;
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*/
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const char *regs_query_register_name(unsigned int offset)
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{
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const struct pt_regs_offset *roff;
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for (roff = regoffset_table; roff->name != NULL; roff++)
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if (roff->offset == offset)
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return roff->name;
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return NULL;
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}
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