diff options
Diffstat (limited to 'meta-xilinx-bsp/recipes-microblaze/gdb/files/0008-Patch-microblaze-Added-Backtrace-support-to-GDB.patch')
| -rw-r--r-- | meta-xilinx-bsp/recipes-microblaze/gdb/files/0008-Patch-microblaze-Added-Backtrace-support-to-GDB.patch | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/meta-xilinx-bsp/recipes-microblaze/gdb/files/0008-Patch-microblaze-Added-Backtrace-support-to-GDB.patch b/meta-xilinx-bsp/recipes-microblaze/gdb/files/0008-Patch-microblaze-Added-Backtrace-support-to-GDB.patch deleted file mode 100644 index 7f075d55..00000000 --- a/meta-xilinx-bsp/recipes-microblaze/gdb/files/0008-Patch-microblaze-Added-Backtrace-support-to-GDB.patch +++ /dev/null @@ -1,156 +0,0 @@ -From 7944750e435100e72913f01aa0a43b7d7cffd421 Mon Sep 17 00:00:00 2001 -From: nagaraju <nmekala@xilix.com> -Date: Tue, 3 Sep 2013 12:09:47 +0530 -Subject: [PATCH 08/16] [Patch, microblaze]: Added Backtrace support to GDB - -Added backtrace support without debugging information. - -Earlier backtrace used to work only when debug information is available. -Previous pc & sp values are calculated incorrectly due to which backtrace -was failing. - -In this patch, previous frame sp & pc values are calculated correctly -in microblaze_frame_cache function and supplied them to -microblaze_frame_prev_register function - -Signed-off-by:nagaraju <nmekala@xilix.com> -Upstream-Status: Pending ---- - gdb/microblaze-tdep.c | 42 ++++++++++++++++++++++++++++++++++-------- - gdb/microblaze-tdep.h | 5 +++-- - 2 files changed, 37 insertions(+), 10 deletions(-) - -diff --git a/gdb/microblaze-tdep.c b/gdb/microblaze-tdep.c -index 0ce4947..247740e 100644 ---- a/gdb/microblaze-tdep.c -+++ b/gdb/microblaze-tdep.c -@@ -225,6 +225,7 @@ microblaze_alloc_frame_cache (void) - /* Base address. */ - cache->base = 0; - cache->pc = 0; -+ cache->saved_sp = 0; - - /* Frameless until proven otherwise. */ - cache->frameless_p = 1; -@@ -347,6 +348,7 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, - cache->frameless_p = 0; /* Frame found. */ - save_hidden_pointer_found = 0; - non_stack_instruction_found = 0; -+ cache->register_offsets[rd] = -imm; - continue; - } - else if (IS_SPILL_SP(op, rd, ra)) -@@ -508,6 +510,7 @@ microblaze_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc) - return start_pc; - } - -+enum { REG_UNAVAIL = (CORE_ADDR) -1 }; - /* Normal frames. */ - - static struct microblaze_frame_cache * -@@ -515,7 +518,7 @@ microblaze_frame_cache (struct frame_info *next_frame, void **this_cache) - { - struct microblaze_frame_cache *cache; - struct gdbarch *gdbarch = get_frame_arch (next_frame); -- CORE_ADDR func; -+ CORE_ADDR current_pc; - int rn; - - if (*this_cache) -@@ -529,10 +532,18 @@ microblaze_frame_cache (struct frame_info *next_frame, void **this_cache) - for (rn = 0; rn < gdbarch_num_regs (gdbarch); rn++) - cache->register_offsets[rn] = -1; - -- func = get_frame_func (next_frame); -+ cache->pc = get_frame_func (next_frame); -+ current_pc = get_frame_pc (next_frame); -+ -+ if (cache->pc) -+ microblaze_analyze_prologue (gdbarch, cache->pc, current_pc, -+ cache); - - cache->base = get_frame_register_unsigned (next_frame, gdbarch_sp_regnum (gdbarch)); -- cache->pc = get_frame_address_in_block (next_frame); -+ cache->saved_sp = cache->base + cache->framesize; -+ -+ cache->register_offsets[MICROBLAZE_PREV_PC_REGNUM] = cache->base; -+ cache->register_offsets[MICROBLAZE_SP_REGNUM] = cache->saved_sp; - - return cache; - } -@@ -548,7 +559,7 @@ microblaze_frame_this_id (struct frame_info *next_frame, void **this_cache, - if (cache->base == 0) - return; - -- (*this_id) = frame_id_build (cache->base, get_frame_pc (next_frame)); -+ (*this_id) = frame_id_build (cache->base, cache->pc); - } - - static struct value * -@@ -558,6 +569,14 @@ microblaze_frame_prev_register (struct frame_info *this_frame, - struct microblaze_frame_cache *cache = - microblaze_frame_cache (this_frame, this_cache); - -+ if ((regnum == MICROBLAZE_SP_REGNUM && -+ cache->register_offsets[MICROBLAZE_SP_REGNUM]) -+ || (regnum == MICROBLAZE_FP_REGNUM && -+ cache->register_offsets[MICROBLAZE_SP_REGNUM])) -+ -+ return frame_unwind_got_constant (this_frame, regnum, -+ cache->register_offsets[MICROBLAZE_SP_REGNUM]); -+ - if (cache->frameless_p) - { - if (regnum == MICROBLAZE_PC_REGNUM) -@@ -565,11 +584,18 @@ microblaze_frame_prev_register (struct frame_info *this_frame, - if (regnum == MICROBLAZE_SP_REGNUM) - regnum = 1; - return trad_frame_get_prev_register (this_frame, -- cache->saved_regs, regnum); -+ cache->saved_regs, regnum); - } -- else -- return trad_frame_get_prev_register (this_frame, cache->saved_regs, -- regnum); -+ -+ if (regnum == MICROBLAZE_PC_REGNUM) -+ { -+ regnum = 15; -+ return frame_unwind_got_memory (this_frame, regnum, -+ cache->register_offsets[MICROBLAZE_PREV_PC_REGNUM]); -+ } -+ -+ return trad_frame_get_prev_register (this_frame, cache->saved_regs, -+ regnum); - - } - -diff --git a/gdb/microblaze-tdep.h b/gdb/microblaze-tdep.h -index cd32e9f..14eb3ab 100644 ---- a/gdb/microblaze-tdep.h -+++ b/gdb/microblaze-tdep.h -@@ -57,6 +57,7 @@ struct microblaze_frame_cache - - /* Offsets to saved registers. */ - int register_offsets[59]; /* Must match MICROBLAZE_NUM_REGS. */ -+ CORE_ADDR saved_sp; - - /* Table of saved registers. */ - struct trad_frame_saved_reg *saved_regs; -@@ -80,11 +81,11 @@ enum microblaze_regnum - MICROBLAZE_R12_REGNUM, - MICROBLAZE_R13_REGNUM, - MICROBLAZE_R14_REGNUM, -- MICROBLAZE_R15_REGNUM, -+ MICROBLAZE_R15_REGNUM, MICROBLAZE_PREV_PC_REGNUM = MICROBLAZE_R15_REGNUM, - MICROBLAZE_R16_REGNUM, - MICROBLAZE_R17_REGNUM, - MICROBLAZE_R18_REGNUM, -- MICROBLAZE_R19_REGNUM, -+ MICROBLAZE_R19_REGNUM, MICROBLAZE_FP_REGNUM = MICROBLAZE_R19_REGNUM, - MICROBLAZE_R20_REGNUM, - MICROBLAZE_R21_REGNUM, - MICROBLAZE_R22_REGNUM, --- -1.9.0 - |