[Bug gas/4029] relax_segment can't stabilize .gcc_except_table
https://sourceware.org/bugzilla/show_bug.cgi?id=4029 Jeremi changed: What|Removed |Added CC||jeremip11 at gmail dot com -- You are receiving this mail because: You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gas/4029] relax_segment can't stabilize .gcc_except_table
https://sourceware.org/bugzilla/show_bug.cgi?id=4029 Ryan Prichard changed: What|Removed |Added CC||rprichard at google dot com --- Comment #13 from Ryan Prichard --- FWIW: This issue affects the LLVM assembler, too: https://bugs.llvm.org/show_bug.cgi?id=35809. -- You are receiving this mail because: You are on the CC list for the bug. ___ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gas/4029] relax_segment can't stabilize .gcc_except_table
--- Additional Comments From amodra at bigpond dot net dot au 2007-03-14 11:07 --- Fixed -- What|Removed |Added Status|NEW |RESOLVED Resolution||FIXED http://sourceware.org/bugzilla/show_bug.cgi?id=4029 --- You are receiving this mail because: --- You are on the CC list for the bug, or are watching someone who is. ___ bug-binutils mailing list bug-binutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gas/4029] relax_segment can't stabilize .gcc_except_table
--- Additional Comments From amodra at bigpond dot net dot au 2007-03-12 09:01 --- Ah, yes, it does seem as if the type_info table is stored in reverse order and accessed from the end. In that case increasing alignment padding should work. -- http://sourceware.org/bugzilla/show_bug.cgi?id=4029 --- You are receiving this mail because: --- You are on the CC list for the bug, or are watching someone who is. ___ bug-binutils mailing list bug-binutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gas/4029] relax_segment can't stabilize .gcc_except_table
--- Additional Comments From amodra at bigpond dot net dot au 2007-03-11 13:37 --- Yes, we can modify the output, but we must do so in a way that does not confuse consumers of .gcc_except_table. I don't believe changing the .align is correct, because data normally follows the .align (a number of .long's before the end label). Changing alignment in a way that cures the uleb128 problem necessarily inserts zero bytes, which I think will confuse the unwinder. -- What|Removed |Added Status|RESOLVED|REOPENED Resolution|INVALID | http://sourceware.org/bugzilla/show_bug.cgi?id=4029 --- You are receiving this mail because: --- You are on the CC list for the bug, or are watching someone who is. ___ bug-binutils mailing list bug-binutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gas/4029] relax_segment can't stabilize .gcc_except_table
--- Additional Comments From hjl at lucon dot org 2007-03-12 00:52 --- A patch is posted at http://sourceware.org/ml/binutils/2007-03/msg00107.html -- http://sourceware.org/bugzilla/show_bug.cgi?id=4029 --- You are receiving this mail because: --- You are on the CC list for the bug, or are watching someone who is. ___ bug-binutils mailing list bug-binutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gas/4029] relax_segment can't stabilize .gcc_except_table
--- Additional Comments From amodra at bigpond dot net dot au 2007-03-10 10:58 --- Reduced testcase. .data .align 4 .byte 0, 0 .uleb128 end - start start: .space 128*128 - 1 /* or -2 or -3 */ .align 4 end: I don't believe this is a gas bug. Instead, I believe gcc is asking the impossible of gas. The original testcase or the reduced one above has no correct solution. ie. this problem is caused by a design fault in the layout of .gcc_except_table data. Consider: We know the uleb128 is either two or three bytes long. If end-start is 128*128-1 or somewhat less, then it will be two bytes. If 128*128 or a little larger, then it will be three bytes. But, if the uleb128 is two bytes in size, then end-start is 128*128 If the uleb128 is three bytes, then end-start is 128*128-1 This results in a contradiction. -- What|Removed |Added Status|NEW |RESOLVED Resolution||INVALID http://sourceware.org/bugzilla/show_bug.cgi?id=4029 --- You are receiving this mail because: --- You are on the CC list for the bug, or are watching someone who is. ___ bug-binutils mailing list bug-binutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gas/4029] relax_segment can't stabilize .gcc_except_table
--- Additional Comments From hjl at lucon dot org 2007-03-10 15:20 --- Assembler can do better to help gcc. We can turn it into .data .align 4 .byte 0, 0 .uleb128 end - start start: .space 128*128 - 1 /* or -2 or -3 */ .align 8 end: -- http://sourceware.org/bugzilla/show_bug.cgi?id=4029 --- You are receiving this mail because: --- You are on the CC list for the bug, or are watching someone who is. ___ bug-binutils mailing list bug-binutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-binutils
[Bug gas/4029] relax_segment can't stabilize .gcc_except_table
--- Additional Comments From schwab at suse dot de 2007-02-12 16:32 --- Created an attachment (id=1549) -- (http://sourceware.org/bugzilla/attachment.cgi?id=1549action=view) Testcase -- http://sourceware.org/bugzilla/show_bug.cgi?id=4029 --- You are receiving this mail because: --- You are on the CC list for the bug, or are watching someone who is. ___ bug-binutils mailing list bug-binutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-binutils
