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.loc fileno lineno [column] [options]
.loc
directive will add row to the .debug_line
line
number matrix corresponding to the immediately following assembly
instruction. The fileno, lineno, and optional column
arguments will be applied to the .debug_line
state machine before
the row is added.
The options are a sequence of the following tokens in any order:
basic_block
basic_block
register in the
.debug_line
state machine to true
.
prologue_end
prologue_end
register in the
.debug_line
state machine to true
.
epilogue_begin
epilogue_begin
register in the
.debug_line
state machine to true
.
is_stmt value
is_stmt
register in the
.debug_line
state machine to value
, which must be
either 0 or 1.
isa value
isa
register in the .debug_line
state machine to value, which must be an unsigned integer.