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| author | Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> | 2011-01-06 19:44:32 +0000 |
|---|---|---|
| committer | Rainer Orth <ro@gcc.gnu.org> | 2011-01-06 19:44:32 +0000 |
| commit | e1a973d838b24e8a78ea0b6b4336d7c961e42b7a (patch) | |
| tree | 8426f69b885ccf4f9bd4efb07209728afebe1956 /gcc | |
| parent | c73f67c50ef76e2b8b5797adf6e61ceb3ec9febd (diff) | |
| download | gcc-e1a973d838b24e8a78ea0b6b4336d7c961e42b7a.zip gcc-e1a973d838b24e8a78ea0b6b4336d7c961e42b7a.tar.gz gcc-e1a973d838b24e8a78ea0b6b4336d7c961e42b7a.tar.bz2 | |
re PR target/43309 (amd64 TLS IE code sequence on Solaris 2/x86 violates spec)
PR target/43309
* config/i386/i386.c (legitimize_tls_address)
<TLS_MODEL_INITIAL_EXEC>: Handle TARGET_64BIT && TARGET_SUN_TLS.
* config/i386/i386.md (UNSPEC_TLS_IE_SUN): Declare.
(tls_initial_exec_64_sun): New pattern.
From-SVN: r168553
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 11 | ||||
| -rw-r--r-- | gcc/config/i386/i386.md | 13 |
3 files changed, 32 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2a8cef0..c7fe658 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2011-01-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> + + PR target/43309 + * config/i386/i386.c (legitimize_tls_address) + <TLS_MODEL_INITIAL_EXEC>: Handle TARGET_64BIT && TARGET_SUN_TLS. + * config/i386/i386.md (UNSPEC_TLS_IE_SUN): Declare. + (tls_initial_exec_64_sun): New pattern. + 2011-01-06 Gerald Pfeifer <gerald@pfeifer.com> * doc/invoke.texi (Overall Options): Improve wording and markup diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 2a31d3c..39be03e 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -12505,6 +12505,17 @@ legitimize_tls_address (rtx x, enum tls_model model, int for_mov) case TLS_MODEL_INITIAL_EXEC: if (TARGET_64BIT) { + if (TARGET_SUN_TLS) + { + /* The Sun linker took the AMD64 TLS spec literally + and can only handle %rax as destination of the + initial executable code sequence. */ + + dest = gen_reg_rtx (Pmode); + emit_insn (gen_tls_initial_exec_64_sun (dest, x)); + return dest; + } + pic = NULL; type = UNSPEC_GOTNTPOFF; } diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 05937e6..66ddf1d 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -93,6 +93,7 @@ UNSPEC_TLS_GD UNSPEC_TLS_LD_BASE UNSPEC_TLSDESC + UNSPEC_TLS_IE_SUN ;; Other random patterns UNSPEC_SCAS @@ -12688,6 +12689,18 @@ (set_attr "memory" "load") (set_attr "imm_disp" "false")]) +;; The Sun linker took the AMD64 TLS spec literally and can only handle +;; %rax as destination of the initial executable code sequence. +(define_insn "tls_initial_exec_64_sun" + [(set (match_operand:DI 0 "register_operand" "=a") + (unspec:DI + [(match_operand:DI 1 "tls_symbolic_operand" "")] + UNSPEC_TLS_IE_SUN)) + (clobber (reg:CC FLAGS_REG))] + "TARGET_64BIT && TARGET_SUN_TLS" + "mov{q}\t{%%fs:0, %0|%0, QWORD PTR fs:0}\n\tadd{q}\t{%a1@gottpoff(%%rip), %0|%0, %a1@gottpoff[rip]}" + [(set_attr "type" "multi")]) + ;; GNU2 TLS patterns can be split. (define_expand "tls_dynamic_gnu2_32" |