diff options
Diffstat (limited to 'packages/gcc/4.8.5/0000-gcc_bug_62231.patch')
| -rw-r--r-- | packages/gcc/4.8.5/0000-gcc_bug_62231.patch | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/packages/gcc/4.8.5/0000-gcc_bug_62231.patch b/packages/gcc/4.8.5/0000-gcc_bug_62231.patch deleted file mode 100644 index 603e1c25..00000000 --- a/packages/gcc/4.8.5/0000-gcc_bug_62231.patch +++ /dev/null @@ -1,132 +0,0 @@ -As-applied. From: - -https://gcc.gnu.org/ml/gcc-patches/2014-09/msg02625.html - -Linked from bug62231 comment 4 there - ---- - gcc/defaults.h | 5 +++ - gcc/dwarf2cfi.c | 76 +++++++++++++++++++++++++++++++++++----------------- - libgcc/unwind-dw2.c | 4 -- - 3 files changed, 57 insertions(+), 28 deletions(-) - ---- a/gcc/defaults.h -+++ b/gcc/defaults.h -@@ -438,6 +438,11 @@ - #define DWARF_FRAME_REGNUM(REG) DBX_REGISTER_NUMBER (REG) - #endif - -+/* The mapping from dwarf CFA reg number to internal dwarf reg numbers. */ -+#ifndef DWARF_REG_TO_UNWIND_COLUMN -+#define DWARF_REG_TO_UNWIND_COLUMN(REGNO) (REGNO) -+#endif -+ - /* Map register numbers held in the call frame info that gcc has - collected using DWARF_FRAME_REGNUM to those that should be output in - .debug_frame and .eh_frame. */ ---- a/gcc/dwarf2cfi.c -+++ b/gcc/dwarf2cfi.c -@@ -225,7 +225,44 @@ - emit_move_insn (adjust_address (mem, mode, offset), GEN_INT (size)); - } - --/* Generate code to initialize the register size table. */ -+/* Helper for expand_builtin_init_dwarf_reg_sizes. Generate code to -+ initialize the dwarf register size table entry corresponding to register -+ REGNO in REGMODE. TABLE is the table base address, SLOTMODE is the mode -+ to use for the size entry to initialize, and WROTE_RETURN_COLUMN needs to -+ be set to true if the dwarf register number for REGNO is the dwarf return -+ column number. */ -+ -+static -+void init_one_dwarf_reg_size (int regno, enum machine_mode regmode, -+ rtx table, enum machine_mode slotmode, -+ bool *wrote_return_column) -+{ -+ const unsigned int dnum = DWARF_FRAME_REGNUM (regno); -+ const unsigned int rnum = DWARF2_FRAME_REG_OUT (dnum, 1); -+ const unsigned int dcol = DWARF_REG_TO_UNWIND_COLUMN (rnum); -+ -+ const HOST_WIDE_INT slotoffset = dcol * GET_MODE_SIZE (slotmode); -+ const HOST_WIDE_INT regsize = GET_MODE_SIZE (regmode); -+ -+ if (rnum >= DWARF_FRAME_REGISTERS) -+ return; -+ -+ if (dnum == DWARF_FRAME_RETURN_COLUMN) -+ { -+ if (regmode == VOIDmode) -+ return; -+ *wrote_return_column = true; -+ } -+ -+ if (slotoffset < 0) -+ return; -+ -+ emit_move_insn (adjust_address (table, slotmode, slotoffset), -+ gen_int_mode (regsize, slotmode)); -+} -+ -+/* Generate code to initialize the dwarf register size table located -+ at the provided ADDRESS. */ - - void - expand_builtin_init_dwarf_reg_sizes (tree address) -@@ -238,30 +275,21 @@ - - for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) - { -- unsigned int dnum = DWARF_FRAME_REGNUM (i); -- unsigned int rnum = DWARF2_FRAME_REG_OUT (dnum, 1); -+ enum machine_mode save_mode = reg_raw_mode[i]; -+ rtx span; - -- if (rnum < DWARF_FRAME_REGISTERS) -- { -- HOST_WIDE_INT offset = rnum * GET_MODE_SIZE (mode); -- enum machine_mode save_mode = reg_raw_mode[i]; -- HOST_WIDE_INT size; -- -- if (HARD_REGNO_CALL_PART_CLOBBERED (i, save_mode)) -- save_mode = choose_hard_reg_mode (i, 1, true); -- if (dnum == DWARF_FRAME_RETURN_COLUMN) -- { -- if (save_mode == VOIDmode) -- continue; -- wrote_return_column = true; -- } -- size = GET_MODE_SIZE (save_mode); -- if (offset < 0) -- continue; -- -- emit_move_insn (adjust_address (mem, mode, offset), -- gen_int_mode (size, mode)); -- } -+ span = targetm.dwarf_register_span (gen_rtx_REG (save_mode, i)); -+ if (!span) -+ init_one_dwarf_reg_size (i, save_mode, mem, mode, &wrote_return_column); -+ else -+ { -+ for (int si = 0; si < XVECLEN (span, 0); si++) -+ { -+ rtx reg = XVECEXP (span, 0, si); -+ init_one_dwarf_reg_size -+ (REGNO (reg), GET_MODE (reg), mem, mode, &wrote_return_column); -+ } -+ } - } - - if (!wrote_return_column) ---- a/libgcc/unwind-dw2.c -+++ b/libgcc/unwind-dw2.c -@@ -55,10 +55,6 @@ - #define PRE_GCC3_DWARF_FRAME_REGISTERS DWARF_FRAME_REGISTERS - #endif - --#ifndef DWARF_REG_TO_UNWIND_COLUMN --#define DWARF_REG_TO_UNWIND_COLUMN(REGNO) (REGNO) --#endif -- - /* ??? For the public function interfaces, we tend to gcc_assert that the - column numbers are in range. For the dwarf2 unwind info this does happen, - although so far in a case that doesn't actually matter. |