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d04fd3fae8
Also included is a local hack to allow for 0bXXX binary constants, since this appears to be a frequently requested item in the AVR developers community. The GCC configuration is tuned to allow for both, -gstabs [the default if only -g is given], and -gdwarf-2 debugging options. ELF/DWARF-2 is the emerging format as promoted by Atmel, and is intented to be directly usable in their AVR Studio simulator in future. Eventually, AVR-GDB will fully support DWARF-2 debugging as well some day.
83 lines
2.3 KiB
Text
83 lines
2.3 KiB
Text
--- gcc/cpplib.h.orig Mon Feb 9 13:23:51 2004
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+++ gcc/cpplib.h Thu Apr 29 12:24:10 2004
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@@ -630,6 +630,7 @@
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#define CPP_N_DECIMAL 0x0100
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#define CPP_N_HEX 0x0200
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#define CPP_N_OCTAL 0x0400
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+#define CPP_N_BINARY 0x0800
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#define CPP_N_UNSIGNED 0x1000 /* Properties. */
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#define CPP_N_IMAGINARY 0x2000
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--- gcc/cppexp.c.orig Thu Feb 12 00:52:56 2004
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+++ gcc/cppexp.c Thu Apr 29 12:29:40 2004
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@@ -22,6 +22,9 @@
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#include "system.h"
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#include "cpplib.h"
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#include "cpphash.h"
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+#include "flags.h"
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+#include "coretypes.h"
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+#include "toplev.h"
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#define PART_PRECISION (sizeof (cpp_num_part) * CHAR_BIT)
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#define HALF_MASK (~(cpp_num_part) 0 >> (PART_PRECISION / 2))
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@@ -75,6 +78,9 @@
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#define SYNTAX_ERROR2(msgid, arg) \
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do { cpp_error (pfile, CPP_DL_ERROR, msgid, arg); goto syntax_error; } \
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while(0)
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+#define SYNTAX_ERROR3(msgid, arg1, arg2) \
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+ do { cpp_error (pfile, CPP_DL_ERROR, msgid, arg1, arg2); goto syntax_error; } \
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+ while(0)
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/* Subroutine of cpp_classify_number. S points to a float suffix of
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length LEN, possibly zero. Returns 0 for an invalid suffix, or a
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@@ -171,6 +177,11 @@
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radix = 16;
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str++;
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}
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+ else if ((*str == 'b' || *str == 'B') && (str[1] == '0' || str[1] == '1'))
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+ {
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+ radix = 2;
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+ str++;
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+ }
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}
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/* Now scan for a well-formed integer or float. */
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@@ -209,7 +220,8 @@
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radix = 10;
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if (max_digit >= radix)
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- SYNTAX_ERROR2 ("invalid digit \"%c\" in octal constant", '0' + max_digit);
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+ SYNTAX_ERROR3 ("invalid digit \"%c\" in %s constant", '0' + max_digit,
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+ radix == 2? "binary": "octal");
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if (float_flag != NOT_FLOAT)
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{
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@@ -288,11 +300,16 @@
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if ((result & CPP_N_IMAGINARY) && CPP_PEDANTIC (pfile))
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cpp_error (pfile, CPP_DL_PEDWARN,
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"imaginary constants are a GCC extension");
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+ if (radix == 2 && CPP_PEDANTIC (pfile))
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+ cpp_error (pfile, CPP_DL_PEDWARN,
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+ "binary constants are a GCC extension");
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if (radix == 10)
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result |= CPP_N_DECIMAL;
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else if (radix == 16)
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result |= CPP_N_HEX;
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+ else if (radix == 2)
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+ result |= CPP_N_BINARY;
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else
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result |= CPP_N_OCTAL;
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@@ -341,6 +358,11 @@
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else if ((type & CPP_N_RADIX) == CPP_N_HEX)
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{
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base = 16;
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+ p += 2;
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+ }
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+ else if ((type & CPP_N_RADIX) == CPP_N_BINARY)
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+ {
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+ base = 2;
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p += 2;
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}
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