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| author | Bernhard Schommer <bernhardschommer@gmail.com> | 2016-08-05 14:05:34 +0200 |
|---|---|---|
| committer | Bernhard Schommer <bernhardschommer@gmail.com> | 2016-08-05 14:05:34 +0200 |
| commit | 028aaefc44b8ed8bafd8b8896fedb53f6e68df3c (patch) | |
| tree | d7f9325da52050a64e5c9ced1017a4f57c674ff3 /arm/TargetPrinter.ml | |
| parent | 4ac759d0bceef49d16197e3bb8c9767ece693c5e (diff) | |
| download | compcert-kvx-028aaefc44b8ed8bafd8b8896fedb53f6e68df3c.tar.gz compcert-kvx-028aaefc44b8ed8bafd8b8896fedb53f6e68df3c.zip | |
Implement support for big endian arm targets.
Adds support for the big endian arm targets by making the target
endianess flag configurable, adding support for the big endian
calling conventions, rewriting memory access patterns and adding
big endian versions of the runtime functions.
Bug 19418
Diffstat (limited to 'arm/TargetPrinter.ml')
| -rw-r--r-- | arm/TargetPrinter.ml | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arm/TargetPrinter.ml b/arm/TargetPrinter.ml index d2ea16f7..95cae3f7 100644 --- a/arm/TargetPrinter.ml +++ b/arm/TargetPrinter.ml @@ -220,10 +220,12 @@ module Target (Opt: PRINTER_OPTIONS) : TARGET = fprintf oc " .balign 4\n"; Hashtbl.iter (fun bf lbl -> - (* Little-endian floats *) + (* Big or little-endian floats *) let bfhi = Int64.shift_right_logical bf 32 and bflo = Int64.logand bf 0xFFFF_FFFFL in - fprintf oc ".L%d: .word 0x%Lx, 0x%Lx\n" lbl bflo bfhi) + if Archi.big_endian + then fprintf oc ".L%d: .word 0x%Lx, 0x%Lx\n" lbl bfhi bflo + else fprintf oc ".L%d: .word 0x%Lx, 0x%Lx\n" lbl bflo bfhi) float_labels; Hashtbl.iter (fun bf lbl -> @@ -310,7 +312,9 @@ module Target (Opt: PRINTER_OPTIONS) : TARGET = | (Tfloat | Tany64) :: tyl' -> let i = (i + 1) land (-2) in if i >= 4 then 0 else begin - fixup_double oc dir (freg_param i) (ireg_param i) (ireg_param (i+1)); + if Archi.big_endian + then fixup_double oc dir (freg_param i) (ireg_param (i+1)) (ireg_param i) + else fixup_double oc dir (freg_param i) (ireg_param i) (ireg_param (i+1)); 1 + fixup (i+2) tyl' end | Tsingle :: tyl' -> @@ -855,14 +859,12 @@ module Target (Opt: PRINTER_OPTIONS) : TARGET = cfi_section oc end - let print_epilogue oc = if !Clflags.option_g then begin Debug.compute_gnu_file_enum (fun f -> ignore (print_file oc f)); section oc Section_text; end - let default_falignment = 4 let label = elf_label |