[Bug binutils/10924] Bug in objdump when disassembling raw armv4t binaries
--- Additional Comments From chris at seberino dot org 2009-12-04 19:15 --- Subject: Re: Bug in objdump when disassembling raw armv4t binaries On Thu, Dec 03, 2009 at 10:54:51AM -, nickc at redhat dot com wrote: > They are unpredictable because they use the program counter as the address > register. See page A5-45 of your ARM ARM: > > "Specifying R15 as register Rn has UNPREDICTABLE results." Nick Thanks for being patient with my mistakes. Between the two of us, we'll catch each other's mistakes and both end up stronger for it. OK I think I found a bug on an old fix to redeem myself 0x00bf returns strheq r0, [r0], -pc (pc = r15) ARM ARM say for this situation neither Rn nor Rm can be pc (R15). Hence, we need an "; " for this case too. cs P.S. By the way, I'm using ARM ARM version ARM DDI 0100I which has different page numbers than your version. I can send you my PDF if you wish. -- http://sourceware.org/bugzilla/show_bug.cgi?id=10924 --- 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/11054] New: Suspicious error "missing .fnstart before unwinding directive" from libffi's ARM code
I found this out while trying to build a cross-gcj compiler for ARM targets: when using binutils 2.20 the build fails at libffi because of this error: libtool: compile: /var/tmp/cross/arm-carel-linux-gnu/portage/cross-arm-carel-linux-gnu/gcc-4.3.4/work/build/./gcc/xgcc -B/var/tmp/cross/arm-carel-linux-gnu/portag e/cross-arm-carel-linux-gnu/gcc-4.3.4/work/build/./gcc/ -B/usr/arm-carel-linux-gnu/bin/ -B/usr/arm-carel-linux-gnu/lib/ -isystem /usr/arm-carel-linux-gnu/include - isystem /usr/arm-carel-linux-gnu/sys-include -I. -I/var/tmp/cross/arm-carel-linux-gnu/portage/cross-arm-carel-linux-gnu/gcc-4.3.4/work/gcc-4.3.4/libffi/include -Ii nclude -I/var/tmp/cross/arm-carel-linux-gnu/portage/cross-arm-carel-linux-gnu/gcc-4.3.4/work/gcc-4.3.4/libffi/src -O2 -g -O2 -pipe -c /var/tmp/cross/arm-carel-linu x-gnu/portage/cross-arm-carel-linux-gnu/gcc-4.3.4/work/gcc-4.3.4/libffi/src/arm/sysv.S -fPIC -DPIC -o src/arm/.libs/sysv.o /var/tmp/cross/arm-carel-linux-gnu/portage/cross-arm-carel-linux-gnu/gcc-4.3.4/work/gcc-4.3.4/libffi/src/arm/sysv.S: Assembler messages: /var/tmp/cross/arm-carel-linux-gnu/portage/cross-arm-carel-linux-gnu/gcc-4.3.4/work/gcc-4.3.4/libffi/src/arm/sysv.S:238: Error: missing .fnstart before unwinding directive Tracking this down, seems like it doesn't like .pad directive if it's not prefixed by the @ symbol. Unfortunately I'm not really much into ARM assembly so I can't tell what the problem is there. binutils 2.18 builds libffi perfectly fine as far as I can tell. I'm attaching two testcases that reduce the problem; testcase2.s is a reduced case as taken by sysv.S, while testcase3.s is a working alternative; I have no idea if they are meant to be the same though, I'm afraid. -- Summary: Suspicious error "missing .fnstart before unwinding directive" from libffi's ARM code Product: binutils Version: 2.20 Status: NEW Severity: normal Priority: P2 Component: gas AssignedTo: unassigned at sources dot redhat dot com ReportedBy: flameeyes at gmail dot com CC: bug-binutils at gnu dot org GCC host triplet: i686-pc-linux-gnu GCC target triplet: arm-*-linux-gnu http://sourceware.org/bugzilla/show_bug.cgi?id=11054 --- 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/11054] Suspicious error "missing .fnstart before unwinding directive" from libffi's ARM code
--- Additional Comments From flameeyes at gmail dot com 2009-12-04 20:25 --- Created an attachment (id=) --> (http://sourceware.org/bugzilla/attachment.cgi?id=&action=view) Failing testcase -- http://sourceware.org/bugzilla/show_bug.cgi?id=11054 --- 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/11054] Suspicious error "missing .fnstart before unwinding directive" from libffi's ARM code
--- Additional Comments From flameeyes at gmail dot com 2009-12-04 20:25 --- Created an attachment (id=4445) --> (http://sourceware.org/bugzilla/attachment.cgi?id=4445&action=view) Working testcase -- http://sourceware.org/bugzilla/show_bug.cgi?id=11054 --- 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/11054] Suspicious error "missing .fnstart before unwinding directive" from libffi's ARM code
--- Additional Comments From flameeyes at gmail dot com 2009-12-04 22:37 --- Given that @ simply comments the thing out, I guess the point is that testcase3 is *empty* at that point, so I guess this is a bug in gcc's sourcesÂ… -- What|Removed |Added Status|NEW |RESOLVED Resolution||INVALID http://sourceware.org/bugzilla/show_bug.cgi?id=11054 --- 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 gold/11055] New: incremental-dump assumes 64bit little endian ELF input
incremental-dump.cc has Incremental_binary* inc = open_incremental_binary(file); ... elfcpp::Elf_file<64, false, Incremental_binary> elf_file(inc); It is very strange to assume all input ELF files are 64bit little endian ELF. -- Summary: incremental-dump assumes 64bit little endian ELF input Product: binutils Version: 2.21 (HEAD) Status: NEW Severity: normal Priority: P2 Component: gold AssignedTo: ian at airs dot com ReportedBy: hjl dot tools at gmail dot com CC: bug-binutils at gnu dot org http://sourceware.org/bugzilla/show_bug.cgi?id=11055 --- 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 binutils/11037] invalid code generation depending on code position
--- Additional Comments From hjl dot tools at gmail dot com 2009-12-05 03:38 --- It is a regression. Binutils 2.19 works correctly. -- What|Removed |Added CC||hjl dot tools at gmail dot ||com http://sourceware.org/bugzilla/show_bug.cgi?id=11037 --- 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/11037] invalid code generation depending on code position
--- Additional Comments From hjl dot tools at gmail dot com 2009-12-05 03:40 --- It is an assembler bug. -- What|Removed |Added Component|binutils|gas http://sourceware.org/bugzilla/show_bug.cgi?id=11037 --- 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/11037] invalid code generation depending on code position
--- Additional Comments From hjl dot tools at gmail dot com 2009-12-05 04:54 --- It is caused by: http://sourceware.org/ml/binutils-cvs/2009-10/msg00245.html -- What|Removed |Added CC||amodra at bigpond dot net ||dot au http://sourceware.org/bugzilla/show_bug.cgi?id=11037 --- 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
