diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2016-02-02 17:11:38 +0300 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2016-02-03 20:44:57 +0300 |
| commit | ea173078d2c0c1af13a8b315ca187ffa4d00cd66 (patch) | |
| tree | 2dff54ce68447dd4d78c34d6f85bc38861770df7 | |
| parent | 0cb4071ef9e10f703220f5e731141bf438aca16e (diff) | |
| download | gdb-ea173078d2c0c1af13a8b315ca187ffa4d00cd66.zip gdb-ea173078d2c0c1af13a8b315ca187ffa4d00cd66.tar.gz gdb-ea173078d2c0c1af13a8b315ca187ffa4d00cd66.tar.bz2 | |
xtensa: fix signedness of gas relocations
Change 1058c7532d0b "Use signed data type for R_XTENSA_DIFF* relocation
offsets." changed signedness of BFD_RELOC_XTENSA_DIFF* relocations
substituted for BFD_RELOC_*. This made it impossible to encode arbitrary
8-, 16- and 32-bit values, which broke e.g. debug info encoding by .loc
directive. Revert this part and add test.
gas/
2016-02-03 Max Filippov <jcmvbkbc@gmail.com>
* config/tc-xtensa.c (md_apply_fix): Mark BFD_RELOC_XTENSA_DIFF*
substitutions for BFD_RELOC_* as unsigned.
* gas/testsuite/gas/xtensa/all.exp: Add loc to list of xtensa
tests.
* gas/testsuite/gas/xtensa/loc.d: New file: loc test result
patterns.
* gas/testsuite/gas/xtensa/loc.s: New file: loc test.
| -rw-r--r-- | gas/ChangeLog | 10 | ||||
| -rw-r--r-- | gas/config/tc-xtensa.c | 6 | ||||
| -rw-r--r-- | gas/testsuite/gas/xtensa/all.exp | 1 | ||||
| -rw-r--r-- | gas/testsuite/gas/xtensa/loc.d | 10 | ||||
| -rw-r--r-- | gas/testsuite/gas/xtensa/loc.s | 7 |
5 files changed, 31 insertions, 3 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index da426fc..e147013 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,13 @@ +2016-02-03 Max Filippov <jcmvbkbc@gmail.com> + + * config/tc-xtensa.c (md_apply_fix): Mark BFD_RELOC_XTENSA_DIFF* + substitutions for BFD_RELOC_* as unsigned. + * gas/testsuite/gas/xtensa/all.exp: Add loc to list of xtensa + tests. + * gas/testsuite/gas/xtensa/loc.d: New file: loc test result + patterns. + * gas/testsuite/gas/xtensa/loc.s: New file: loc test. + 2016-02-03 Kevin Buettner <kevinb@redhat.com> * config/tc-msp430.h (DWARF2_ADDR_SIZE): Set to 4. diff --git a/gas/config/tc-xtensa.c b/gas/config/tc-xtensa.c index a119871..36a06cc 100644 --- a/gas/config/tc-xtensa.c +++ b/gas/config/tc-xtensa.c @@ -5961,15 +5961,15 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg) { case BFD_RELOC_8: fixP->fx_r_type = BFD_RELOC_XTENSA_DIFF8; - fixP->fx_signed = 1; + fixP->fx_signed = 0; break; case BFD_RELOC_16: fixP->fx_r_type = BFD_RELOC_XTENSA_DIFF16; - fixP->fx_signed = 1; + fixP->fx_signed = 0; break; case BFD_RELOC_32: fixP->fx_r_type = BFD_RELOC_XTENSA_DIFF32; - fixP->fx_signed = 1; + fixP->fx_signed = 0; break; default: break; diff --git a/gas/testsuite/gas/xtensa/all.exp b/gas/testsuite/gas/xtensa/all.exp index 31b725b..7ff7bd7 100644 --- a/gas/testsuite/gas/xtensa/all.exp +++ b/gas/testsuite/gas/xtensa/all.exp @@ -101,6 +101,7 @@ if [istarget xtensa*-*-*] then { run_dump_test "trampoline" run_dump_test "first_frag_align" run_dump_test "auto-litpools" + run_dump_test "loc" } if [info exists errorInfo] then { diff --git a/gas/testsuite/gas/xtensa/loc.d b/gas/testsuite/gas/xtensa/loc.d new file mode 100644 index 0000000..71983cc --- /dev/null +++ b/gas/testsuite/gas/xtensa/loc.d @@ -0,0 +1,10 @@ +#as: +#objdump: -r +#name: .loc directive relocs + +.*: +file format .*xtensa.* + +RELOCATION RECORDS FOR \[\.debug_line\]: +#... +.*R_XTENSA_DIFF16.*\.text\+0x00009c42 +#... diff --git a/gas/testsuite/gas/xtensa/loc.s b/gas/testsuite/gas/xtensa/loc.s new file mode 100644 index 0000000..029e14e --- /dev/null +++ b/gas/testsuite/gas/xtensa/loc.s @@ -0,0 +1,7 @@ + .text + .file 1 "loc.s" + .loc 1 3 + nop + .space 40000 + .loc 1 5 + nop |