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binutils: Apply GNU assembler bug fix.

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svn path=/nixpkgs/branches/stdenv-updates/; revision=18815
This commit is contained in:
Ludovic Courtès 2009-12-05 14:28:17 +00:00
parent 917760a425
commit 9cb2e0aed7
2 changed files with 86 additions and 1 deletions
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83
pkgs/development/tools/misc/binutils/as-pr10856.patch Normal file
View file

@ -0,0 +1,83 @@
Fix a regression in GNU as:
http://sourceware.org/bugzilla/show_bug.cgi?id=10856 .
The bug appears to be responsible for invalid code generated for
Crypto++:
http://groups.google.com/group/cryptopp-users/browse_thread/thread/7ce734e479586640/29c6649b7c7adee2?#29c6649b7c7adee2 .
diff -u -r1.77.2.1 -r1.77.2.2
--- a/src/gas/expr.c 2009/09/11 15:28:43 1.77.2.1
+++ b/src/gas/expr.c 2009/10/28 08:23:48 1.77.2.2
@@ -1997,6 +1997,7 @@
/* Help out with CSE. */
valueT final_val = expressionP->X_add_number;
symbolS *add_symbol = expressionP->X_add_symbol;
+ symbolS *orig_add_symbol = add_symbol;
symbolS *op_symbol = expressionP->X_op_symbol;
operatorT op = expressionP->X_op;
valueT left, right;
@@ -2078,6 +2079,7 @@
left = right;
seg_left = seg_right;
add_symbol = op_symbol;
+ orig_add_symbol = expressionP->X_op_symbol;
op = O_symbol;
break;
}
@@ -2122,18 +2124,19 @@
{
if (op == O_bit_exclusive_or || op == O_bit_inclusive_or)
{
- if (seg_right != absolute_section || right != 0)
+ if (!(seg_right == absolute_section && right == 0))
{
seg_left = seg_right;
left = right;
add_symbol = op_symbol;
+ orig_add_symbol = expressionP->X_op_symbol;
}
op = O_symbol;
break;
}
else if (op == O_left_shift || op == O_right_shift)
{
- if (seg_left != absolute_section || left != 0)
+ if (!(seg_left == absolute_section && left == 0))
{
op = O_symbol;
break;
@@ -2149,6 +2152,7 @@
seg_left = seg_right;
left = right;
add_symbol = op_symbol;
+ orig_add_symbol = expressionP->X_op_symbol;
op = O_symbol;
break;
}
@@ -2158,11 +2162,11 @@
op = O_symbol;
break;
}
- else if (left != right
- || ((seg_left != reg_section || seg_right != reg_section)
- && (seg_left != undefined_section
- || seg_right != undefined_section
- || add_symbol != op_symbol)))
+ else if (!(left == right
+ && ((seg_left == reg_section && seg_right == reg_section)
+ || (seg_left == undefined_section
+ && seg_right == undefined_section
+ && add_symbol == op_symbol))))
return 0;
else if (op == O_bit_and || op == O_bit_inclusive_or)
{
@@ -2233,7 +2237,8 @@
op = O_constant;
else if (seg_left == reg_section && final_val == 0)
op = O_register;
- else if (add_symbol != expressionP->X_add_symbol)
+ else if (seg_left == undefined_section
+ && add_symbol != orig_add_symbol)
final_val += left;
expressionP->X_add_symbol = add_symbol;
}

2
pkgs/development/tools/misc/binutils/default.nix
View file

@ -16,6 +16,8 @@ stdenv.mkDerivation rec {
# RUNPATH instead of RPATH on binaries. This is important because
# RUNPATH can be overriden using LD_LIBRARY_PATH at runtime.
./new-dtags.patch
./as-pr10856.patch
];
inherit noSysDirs;