Gcc Error Branch Out Of Range
Forgot Password Login: [x] User account creation filtered due to spam. Bug43961 - [4.7 Regression] [ARM thumb] "branch out of range" with thumb1_output_casesi Summary: [4.7 Regression] [ARM thumb] "branch out of range" with thumb1_output_casesi Status: RESOLVED FIXED Alias: None Product: gcc Classification: Unclassified Component: target (show other bugs) Version: 4.5.0 Importance: P3 normal Target Milestone: 4.8.0 Assignee: Not yet assigned to anyone URL: Keywords: Duplicates (1): 44603 (view as bug list) Depends on: Blocks: Reported: 2010-05-02 10:59 UTC by Daisuke Ban Modified: 2014-06-12 12:56 UTC (History) CC List: 4 users (show) gcc-bugs mick.cornut mikpelinux raj.khem See Also: Host: i686-pc-cygwin Target: arm-elf,arm-eabi Build: Known to work: 4.8.0 Known to fail: 4.6.0, 4.7.4 Last reconfirmed: 2010-05-10 16:03:26 Attachments test source for reproduce the bug (83.91 KB, text/plain) 2010-05-02 11:05 UTC, Daisuke Ban Details patch (quick hack ;-) (784 bytes, patch) 2010-05-02 11:08 UTC, Daisuke Ban Details | Diff proposed fix for PR43961 (486 bytes, patch) 2010-06-22 12:28 UTC, Mikael Pettersson Details | Diff More complicated fix for 4.6 (1.01 KB, patch) 2013-01-09 21:55 UTC, Joseph S. Myers Details | Diff View All Add an attachment (proposed patch, testcase, etc.) Note You need to log in before you can comment on or make changes to this bug. Description Daisuke Ban 2010-05-02 10:59:34 UTC Environment: $ arm-elf-gcc -v Using built-in specs. COLLECT_GCC=arm-elf-gcc COLLECT_LTO_WRAPPER=/cygdrive/c/usr/local/cross/libexec/gcc/arm-elf/4.5.0/lto-wrapper.exe Target: arm-elf Configured with: ../configure --prefix=/cygdrive/c/usr/local/cross --target=arm-elf --with-float=soft --enable-languages=c,c++ --enable-lto --with-libelf=/usr/local Thread model: single gcc version 4.5.0 (GCC) Error: $ arm-elf-gcc -c -Os -mthumb test.i /cygdrive/c/Users/exceed/AppData/Local/Temp/cc6UR3zm.s: Assembler messages: /cygdrive/c/Users/exceed/AppData/Local/Temp/cc6UR3zm.s:32816: Error: branch out of range Problem: I think that the length of jump table does not contains a align code. When jump table mode is SImode, ASM_OUTPUT_CASE_LABEL generates a align code. But length does not contains this align code. (And ADDR_VEC_ALIGN is defined to 0) Quick hack (for 4.5 branch): Please see attached file. Comment 1 Daisuke Ban 2010-05-02 11:05:39 UTC Created attachment 20532 [details] test source for reproduce
Thumb2 branch out of range error Summary: Thumb2 branch out of range error Status: NEW Alias: None Product: binutils Classification: Unclassified Component: gas (show other bugs) Version: 2.26 Importance: P2 normal Target Milestone: --- Assignee: Not yet assigned to anyone URL: Keywords: Depends on: Blocks: Reported: 2015-07-05 16:14 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43961 UTC by Prathamesh Kulkarni Modified: 2015-07-09 23:23 UTC (History) CC List: 2 users (show) jsweval wilson See Also: Host: Target: Build: Last reconfirmed: Attachments Add an attachment (proposed patch, testcase, etc.) Note You need to log in before you can comment on or make changes to https://sourceware.org/bugzilla/show_bug.cgi?id=18625 this bug. Description Prathamesh Kulkarni 2015-07-05 16:14:46 UTC Hi, During LTO compilation of chromium with gcc trunk for single partition (-flto --param lto-partitions=1) I get the following assembly error: Thumb2 branch out of range. LTO compilation of chromium with multiple partitions has no issues, this happens only for single or no partitioning. Assembly file: https://www.dropbox.com/s/yl171mwqd9lad9c/chrome.ltrans0.s?dl=0 Options passed to gas: -march=armv7-a -mfloat-abi=hard -mfpu=neon -meabi=5 Backtrace: I get the following backtrace under gdb: #0 as_bad_where (file=0x7fffffffe29f "chromium/src/out/Release/chrome.ltrans0.s", line=20710144, format=0x552ed2 "Thumb2 branch out of range") at /home/prathamesh.kulkarni/gnu-toolchain/src/binutils-gdb.git/gas/messages.c:259 #1 0x000000000045e7dd in md_apply_fix (fixP=0x931ea6e0, valP=0x7fffffffdaa8, seg=0x7cf7c0) at /home/prathamesh.kulkarni/gnu-toolchain/src/binutils-gdb.git/gas/config/tc-arm.c:22700 #2 0x000000000042f0fd in fixup_segment (fixP=0x931ea6e0, this_segment=0x7cf7c0) at /home/prathamesh.kulkarni/gnu-toolchain/src/binutils-gdb.git/gas/write.c:1067 #3 0x000000000042f36e in fix_segment (abfd=0x7b81f0, sec=0x7cf7c0, xxx=0x0) at /home/prathamesh.kulkarni/gnu-toolchain/src/binutils-gdb.git/gas/write.c:1132 #4 0x0000000000473540 in bfd_map_over_sections (abfd=0x7b81f0, operation=0x42f334
range From: Geert Uytterhoeven
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