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-rw-r--r--packages/gcc/gcc-3.3.3/arm-gotoff.dpatch135
1 files changed, 135 insertions, 0 deletions
diff --git a/packages/gcc/gcc-3.3.3/arm-gotoff.dpatch b/packages/gcc/gcc-3.3.3/arm-gotoff.dpatch
index e69de29bb2..610f9430e0 100644
--- a/packages/gcc/gcc-3.3.3/arm-gotoff.dpatch
+++ b/packages/gcc/gcc-3.3.3/arm-gotoff.dpatch
@@ -0,0 +1,135 @@
+#! /bin/sh -e
+
+src=gcc
+if [ $# -eq 3 -a "$2" = '-d' ]; then
+ pdir="-d $3"
+ src=$3/gcc
+elif [ $# -ne 1 ]; then
+ echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+ exit 1
+fi
+case "$1" in
+ -patch)
+ patch $pdir -f --no-backup-if-mismatch -p0 --fuzz 10 < $0
+ ;;
+ -unpatch)
+ patch $pdir -f --no-backup-if-mismatch -R -p0 --fuzz 10 < $0
+ ;;
+ *)
+ echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+ exit 1
+esac
+exit 0
+
+# DP: use GOTOFF not GOT relocs for .LCn and other local symbols;
+# DP: don't use gotoff for non-static functions, even if defined locally
+
+--- gcc/config/arm/arm.c 2003-06-14 15:20:53.000000000 +0100
++++ gcc/config/arm/arm.c 2004-03-06 15:15:32.000000000 +0000
+@@ -2364,6 +2394,40 @@
+ return 1;
+ }
+
++/* Return true if OP is a symbolic operand that resolves locally. */
++
++static int
++local_symbolic_operand (op, mode)
++ rtx op;
++ enum machine_mode mode ATTRIBUTE_UNUSED;
++{
++ if (GET_CODE (op) == CONST
++ && GET_CODE (XEXP (op, 0)) == PLUS
++ && GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST_INT)
++ op = XEXP (XEXP (op, 0), 0);
++
++ if (GET_CODE (op) == LABEL_REF)
++ return 1;
++
++ if (GET_CODE (op) != SYMBOL_REF)
++ return 0;
++
++ /* These we've been told are local by varasm and encode_section_info
++ respectively. */
++ if (CONSTANT_POOL_ADDRESS_P (op) || ENCODED_LOCAL_BINDING_ATTR_P (XSTR (op, 0)))
++ return 1;
++
++ /* There is, however, a not insubstantial body of code in the rest of
++ the compiler that assumes it can just stick the results of
++ ASM_GENERATE_INTERNAL_LABEL in a symbol_ref and have done. */
++ /* ??? This is a hack. Should update the body of the compiler to
++ always create a DECL an invoke targetm.encode_section_info. */
++ if (strncmp (arm_strip_name_encoding (XSTR (op, 0)), ".L", 2) == 0)
++ return 1;
++
++ return 0;
++}
++
+ rtx
+ legitimize_pic_address (orig, mode, reg)
+ rtx orig;
+@@ -2404,10 +2468,7 @@
+ else
+ emit_insn (gen_pic_load_addr_thumb (address, orig));
+
+- if ((GET_CODE (orig) == LABEL_REF
+- || (GET_CODE (orig) == SYMBOL_REF &&
+- ENCODED_SHORT_CALL_ATTR_P (XSTR (orig, 0))))
+- && NEED_GOT_RELOC)
++ if (local_symbolic_operand (orig, Pmode) && NEED_GOT_RELOC)
+ pic_ref = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, address);
+ else
+ {
+@@ -8804,11 +8911,7 @@
+ if (NEED_GOT_RELOC && flag_pic && making_const_table &&
+ (GET_CODE (x) == SYMBOL_REF || GET_CODE (x) == LABEL_REF))
+ {
+- if (GET_CODE (x) == SYMBOL_REF
+- && (CONSTANT_POOL_ADDRESS_P (x)
+- || ENCODED_SHORT_CALL_ATTR_P (XSTR (x, 0))))
+- fputs ("(GOTOFF)", asm_out_file);
+- else if (GET_CODE (x) == LABEL_REF)
++ if (local_symbolic_operand (x, Pmode))
+ fputs ("(GOTOFF)", asm_out_file);
+ else
+ fputs ("(GOT)", asm_out_file);
+@@ -11335,6 +11418,11 @@
+ else if (! TREE_PUBLIC (decl))
+ arm_encode_call_attribute (decl, SHORT_CALL_FLAG_CHAR);
+ }
++
++ if (TREE_CODE_CLASS (TREE_CODE (decl)) == 'd'
++ && flag_pic
++ && (*targetm.binds_local_p) (decl))
++ arm_encode_call_attribute (decl, LOCAL_BINDING_FLAG_CHAR);
+ }
+ #endif /* !ARM_PE */
+
+
+--- gcc/config/arm/arm.h Fri Mar 5 18:49:44 2004
++++ gcc/config/arm/arm.h Fri Mar 5 15:04:31 2004
+@@ -1870,6 +1870,7 @@
+ Note, '@' and '*' have already been taken. */
+ #define SHORT_CALL_FLAG_CHAR '^'
+ #define LONG_CALL_FLAG_CHAR '#'
++#define LOCAL_BINDING_FLAG_CHAR '%'
+
+ #define ENCODED_SHORT_CALL_ATTR_P(SYMBOL_NAME) \
+ (*(SYMBOL_NAME) == SHORT_CALL_FLAG_CHAR)
+@@ -1877,6 +1878,9 @@
+ #define ENCODED_LONG_CALL_ATTR_P(SYMBOL_NAME) \
+ (*(SYMBOL_NAME) == LONG_CALL_FLAG_CHAR)
+
++#define ENCODED_LOCAL_BINDING_ATTR_P(SYMBOL_NAME) \
++ (*(SYMBOL_NAME) == LOCAL_BINDING_FLAG_CHAR)
++
+ #ifndef SUBTARGET_NAME_ENCODING_LENGTHS
+ #define SUBTARGET_NAME_ENCODING_LENGTHS
+ #endif
+@@ -1888,6 +1892,7 @@
+ #define ARM_NAME_ENCODING_LENGTHS \
+ case SHORT_CALL_FLAG_CHAR: return 1; \
+ case LONG_CALL_FLAG_CHAR: return 1; \
++ case LOCAL_BINDING_FLAG_CHAR: return 1; \
+ case '*': return 1; \
+ SUBTARGET_NAME_ENCODING_LENGTHS
+