diff options
Diffstat (limited to 'toolchain/gcc/patches/4.9.4/microblaze-enable-dwarf-eh-support.patch')
| -rw-r--r-- | toolchain/gcc/patches/4.9.4/microblaze-enable-dwarf-eh-support.patch | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/toolchain/gcc/patches/4.9.4/microblaze-enable-dwarf-eh-support.patch b/toolchain/gcc/patches/4.9.4/microblaze-enable-dwarf-eh-support.patch deleted file mode 100644 index 03fc47f19..000000000 --- a/toolchain/gcc/patches/4.9.4/microblaze-enable-dwarf-eh-support.patch +++ /dev/null @@ -1,166 +0,0 @@ -Fetched from Xilinx gcc git at https://github.com/Xilinx/gcc - -From 23c35173490ac2d6348a668dfc9c1a6eb62171f2 Mon Sep 17 00:00:00 2001 -From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> -Date: Mon, 18 Jun 2012 20:18:13 +0200 -Subject: [PATCH] [Patch, microblaze]: Enable DWARF exception handling support. - -Changelog - -2013-03-18 Edgar E. Iglesias <edgar.iglesias@xilinx.com> - David Holsgrove <david.holsgrove@xilinx.com> - - * common/config/microblaze/microblaze-common.c: Remove - TARGET_EXCEPT_UNWIND_INFO definition. - * config/microblaze/microblaze-protos.h: Add - microblaze_eh_return prototype. - * gcc/config/microblaze/microblaze.c: (microblaze_must_save_register, - microblaze_expand_epilogue, microblaze_return_addr): Handle - calls_eh_return - (microblaze_eh_return): New function. - * gcc/config/microblaze/microblaze.h: Define RETURN_ADDR_OFFSET, - EH_RETURN_DATA_REGNO, MB_EH_STACKADJ_REGNUM, EH_RETURN_STACKADJ_RTX, - ASM_PREFERRED_EH_DATA_FORMAT - * gcc/config/microblaze/microblaze.md: Define eh_return pattern. - -Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com> -Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> ---- - gcc/common/config/microblaze/microblaze-common.c | 3 --- - gcc/config/microblaze/microblaze-protos.h | 1 + - gcc/config/microblaze/microblaze.c | 29 ++++++++++++++++++++---- - gcc/config/microblaze/microblaze.h | 15 ++++++++++++ - gcc/config/microblaze/microblaze.md | 11 +++++++++ - 5 files changed, 52 insertions(+), 7 deletions(-) - -Index: b/gcc/common/config/microblaze/microblaze-common.c -=================================================================== ---- a/gcc/common/config/microblaze/microblaze-common.c -+++ b/gcc/common/config/microblaze/microblaze-common.c -@@ -37,7 +37,4 @@ - #undef TARGET_OPTION_OPTIMIZATION_TABLE - #define TARGET_OPTION_OPTIMIZATION_TABLE microblaze_option_optimization_table - --#undef TARGET_EXCEPT_UNWIND_INFO --#define TARGET_EXCEPT_UNWIND_INFO sjlj_except_unwind_info -- - struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; -Index: b/gcc/config/microblaze/microblaze-protos.h -=================================================================== ---- a/gcc/config/microblaze/microblaze-protos.h -+++ b/gcc/config/microblaze/microblaze-protos.h -@@ -54,6 +54,7 @@ - extern int symbol_mentioned_p (rtx); - extern int label_mentioned_p (rtx); - extern bool microblaze_cannot_force_const_mem (enum machine_mode, rtx); -+extern void microblaze_eh_return (rtx op0); - #endif /* RTX_CODE */ - - /* Declare functions in microblaze-c.c. */ -Index: b/gcc/config/microblaze/microblaze.c -=================================================================== ---- a/gcc/config/microblaze/microblaze.c -+++ b/gcc/config/microblaze/microblaze.c -@@ -1906,6 +1906,11 @@ - if (frame_pointer_needed && (regno == HARD_FRAME_POINTER_REGNUM)) - return 1; - -+ if (crtl->calls_eh_return -+ && regno == MB_ABI_SUB_RETURN_ADDR_REGNUM) { -+ return 1; -+ } -+ - if (!crtl->is_leaf) - { - if (regno == MB_ABI_SUB_RETURN_ADDR_REGNUM) -@@ -1933,6 +1938,13 @@ - return 1; - } - -+ if (crtl->calls_eh_return -+ && (regno == EH_RETURN_DATA_REGNO (0) -+ || regno == EH_RETURN_DATA_REGNO (1))) -+ { -+ return 1; -+ } -+ - return 0; - } - -@@ -2962,6 +2974,12 @@ - emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, fsiz_rtx)); - } - -+ if (crtl->calls_eh_return) -+ emit_insn (gen_addsi3 (stack_pointer_rtx, -+ stack_pointer_rtx, -+ gen_rtx_raw_REG (SImode, -+ MB_EH_STACKADJ_REGNUM))); -+ - emit_jump_insn (gen_return_internal (gen_rtx_REG (Pmode, GP_REG_FIRST + - MB_ABI_SUB_RETURN_ADDR_REGNUM))); - } -@@ -3256,10 +3274,13 @@ - if (count != 0) - return NULL_RTX; - -- return gen_rtx_PLUS (Pmode, -- get_hard_reg_initial_val (Pmode, -- MB_ABI_SUB_RETURN_ADDR_REGNUM), -- GEN_INT (8)); -+ return get_hard_reg_initial_val (Pmode, -+ MB_ABI_SUB_RETURN_ADDR_REGNUM); -+} -+ -+void microblaze_eh_return (rtx op0) -+{ -+ emit_insn (gen_movsi(gen_rtx_MEM(Pmode, stack_pointer_rtx), op0)); - } - - /* Queue an .ident string in the queue of top-level asm statements. -Index: b/gcc/config/microblaze/microblaze.h -=================================================================== ---- a/gcc/config/microblaze/microblaze.h -+++ b/gcc/config/microblaze/microblaze.h -@@ -184,6 +184,21 @@ - #define INCOMING_RETURN_ADDR_RTX \ - gen_rtx_REG (VOIDmode, GP_REG_FIRST + MB_ABI_SUB_RETURN_ADDR_REGNUM) - -+/* Specifies the offset from INCOMING_RETURN_ADDR_RTX and the actual return PC. */ -+#define RETURN_ADDR_OFFSET (8) -+ -+/* Describe how we implement __builtin_eh_return. */ -+#define EH_RETURN_DATA_REGNO(N) (((N) < 2) ? MB_ABI_FIRST_ARG_REGNUM + (N) : INVALID_REGNUM) -+ -+#define MB_EH_STACKADJ_REGNUM MB_ABI_INT_RETURN_VAL2_REGNUM -+#define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, MB_EH_STACKADJ_REGNUM) -+ -+/* Select a format to encode pointers in exception handling data. CODE -+ is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is -+ true if the symbol may be affected by dynamic relocations. */ -+#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ -+ ((flag_pic || GLOBAL) ? DW_EH_PE_aligned : DW_EH_PE_absptr) -+ - /* Use DWARF 2 debugging information by default. */ - #define DWARF2_DEBUGGING_INFO - #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG -Index: b/gcc/config/microblaze/microblaze.md -=================================================================== ---- a/gcc/config/microblaze/microblaze.md -+++ b/gcc/config/microblaze/microblaze.md -@@ -2261,4 +2261,15 @@ - (set_attr "mode" "SI") - (set_attr "length" "4")]) - -+; This is used in compiling the unwind routines. -+(define_expand "eh_return" -+ [(use (match_operand 0 "general_operand" ""))] -+ "" -+ " -+{ -+ microblaze_eh_return(operands[0]); -+ DONE; -+}") -+ - (include "sync.md") -+ |