[Bug ld/32720] ld: add --why-live
https://sourceware.org/bugzilla/show_bug.cgi?id=32720 Sam James changed: What|Removed |Added CC||sam at gentoo dot org See Also||https://reviews.llvm.org/D1 ||20377, ||https://github.com/llvm/llv ||m-project/pull/127112 -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gas/32721] New: internal error in tc-i386.c:parse_register
https://sourceware.org/bugzilla/show_bug.cgi?id=32721 Bug ID: 32721 Summary: internal error in tc-i386.c:parse_register Product: binutils Version: 2.45 (HEAD) Status: NEW Severity: normal Priority: P2 Component: gas Assignee: unassigned at sourceware dot org Reporter: amodra at gmail dot com Target Milestone: --- This one is similar to pr30117 in that fuzzed nonsense can trigger the "know" in parse_register. Testcase: A=%eax%%! Y=A Z=A or $6,Z -- You are receiving this mail because: You are on the CC list for the bug.
[Bug binutils/32722] New: [objdump] vmovdqu considered to have 24-bit displacement
https://sourceware.org/bugzilla/show_bug.cgi?id=32722 Bug ID: 32722 Summary: [objdump] vmovdqu considered to have 24-bit displacement Product: binutils Version: unspecified Status: NEW Severity: normal Priority: P2 Component: binutils Assignee: unassigned at sourceware dot org Reporter: vries at gcc dot gnu.org Target Milestone: --- Consider the following test-case: ... $ cat test.s .file "test.c" .text .globl main .type main, @function main: .byte 0xc5 .byte 0xfe .byte 0x6f .byte 0x0d .byte 0xff .byte 0xff .byte 0xff .byte 0xff .size main, .-main .ident "GCC: (SUSE Linux) 7.5.0" .section.note.GNU-stack,"",@progbits ... Compiled with: ... $ gcc test.s -c ... Objdump thinks the instruction is 7 bytes long: ... $ objdump -d test.o ... : 0: c5 fe 6f 0d ff ff ffvmovdqu -0x1(%rip),%ymm1 7: ff ... However, llvm-objdump thinks it's 8 bytes long: ... $ llvm-objdump -d test.o ... : 0: c5 fe 6f 0d ff ff ff ff vmovdqu -0x1(%rip), %ymm1 ... GDB likewise: ... $ gdb -q -batch test.o -ex "disassemble /r main" Dump of assembler code for function main: 0x <+0>: c5 fe 6f 0d ff ff ff ff vmovdqu -0x1(%rip),%ymm1 End of assembler dump. ... The instruction is in fact 8 bytes long. It consists of: - c5 fe: vex2 prefix - 6f : opcode - 0d : modrm - ff ff ff ff: 32-bit displacement -- You are receiving this mail because: You are on the CC list for the bug.
[Bug binutils/32722] [objdump] vmovdqu considered to have 24-bit displacement
https://sourceware.org/bugzilla/show_bug.cgi?id=32722 H.J. Lu changed: What|Removed |Added Resolution|--- |INVALID Status|NEW |RESOLVED --- Comment #1 from H.J. Lu --- (In reply to Tom de Vries from comment #0) > Consider the following test-case: > ... > $ cat test.s > .file "test.c" > .text > .globl main > .type main, @function > main: > .byte 0xc5 > .byte 0xfe > .byte 0x6f > .byte 0x0d > .byte 0xff > .byte 0xff > .byte 0xff > .byte 0xff > .size main, .-main > .ident "GCC: (SUSE Linux) 7.5.0" > .section.note.GNU-stack,"",@progbits > ... > > Compiled with: > ... > $ gcc test.s -c > ... > > Objdump thinks the instruction is 7 bytes long: > ... > $ objdump -d test.o > ... > : >0: c5 fe 6f 0d ff ff ffvmovdqu -0x1(%rip),%ymm1 >7: ff ^^^ This is the 8th byte. "objdump -dw" shows: 0: c5 fe 6f 0d ff ff ff ff vmovdqu -0x1(%rip),%ymm1# 0x7 -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gas/32721] internal error in tc-i386.c:parse_register
https://sourceware.org/bugzilla/show_bug.cgi?id=32721 --- Comment #1 from Sourceware Commits --- The master branch has been updated by Alan Modra : https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=46b9f07dfe79d8c6857dbfada485a3b9c0e3ffdb commit 46b9f07dfe79d8c6857dbfada485a3b9c0e3ffdb Author: Alan Modra Date: Thu Feb 20 11:49:25 2025 +1030 PR 32721, internal error in tc-i386.c:parse_register pr30117 showed one of the assertions added by 4d1bb7955a8b was too strict. oss-fuzz also found the second assertion to be too strict, with this testcase distilled from 7k of garbage source: A=%eax%%! Y=A Z=A or $6,Z PR 32721 * config/tc-i386.c (parse_register): Move "know" into condition. Simplify. -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gas/32721] internal error in tc-i386.c:parse_register
https://sourceware.org/bugzilla/show_bug.cgi?id=32721 Alan Modra changed: What|Removed |Added Target Milestone|--- |2.45 Assignee|unassigned at sourceware dot org |amodra at gmail dot com Resolution|--- |FIXED Status|NEW |RESOLVED --- Comment #2 from Alan Modra --- Fixed for 2.45 -- You are receiving this mail because: You are on the CC list for the bug.
