diff options
Diffstat (limited to 'recipes-microblaze/gdb/files/0004-Patch-microblaze-Communicate-in-larger-blocks-with-t.patch')
| -rw-r--r-- | recipes-microblaze/gdb/files/0004-Patch-microblaze-Communicate-in-larger-blocks-with-t.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/recipes-microblaze/gdb/files/0004-Patch-microblaze-Communicate-in-larger-blocks-with-t.patch b/recipes-microblaze/gdb/files/0004-Patch-microblaze-Communicate-in-larger-blocks-with-t.patch new file mode 100644 index 00000000..b14e4092 --- /dev/null +++ b/recipes-microblaze/gdb/files/0004-Patch-microblaze-Communicate-in-larger-blocks-with-t.patch @@ -0,0 +1,67 @@ +From 26e124f0d78233b1d976bd4b787f6a7866bcb7e7 Mon Sep 17 00:00:00 2001 +From: nagaraju <nmekala@xilix.com> +Date: Wed, 4 Jan 2012 16:59:33 +0530 +Subject: [PATCH 04/16] [Patch, microblaze]: Communicate in larger blocks with + the target + +Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> +Upstream-Status: Pending +--- + gdb/microblaze-tdep.c | 25 ++++++++++++++++++++++--- + 1 file changed, 22 insertions(+), 3 deletions(-) + +diff --git a/gdb/microblaze-tdep.c b/gdb/microblaze-tdep.c +index 36cf1ca..76e87b3 100644 +--- a/gdb/microblaze-tdep.c ++++ b/gdb/microblaze-tdep.c +@@ -242,6 +242,10 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, + int flags = 0; + int save_hidden_pointer_found = 0; + int non_stack_instruction_found = 0; ++ int n_insns; ++ unsigned long *insn_block; ++ gdb_byte *buf_block; ++ int ti, tj; + + /* Find the start of this function. */ + find_pc_partial_function (pc, &name, &func_addr, &func_end); +@@ -281,9 +285,23 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, + name, paddress (gdbarch, func_addr), + paddress (gdbarch, stop)); + ++/* Do a block read to minimize the transaction with the Debug Agent */ ++ n_insns = (stop == func_addr) ? 1 : ((stop - func_addr) / INST_WORD_SIZE); ++ insn_block = (unsigned long *)calloc(n_insns, sizeof(unsigned long)); ++ buf_block = (gdb_byte *)calloc(n_insns * INST_WORD_SIZE, sizeof(gdb_byte)); ++ ++ target_read_memory (func_addr, buf_block, n_insns * INST_WORD_SIZE ); ++ ++ for(ti = 0; ti < n_insns; ti++){ ++ insn_block[ti] = 0; ++ for( tj = ti * INST_WORD_SIZE; tj < (ti + 1) * INST_WORD_SIZE; tj++ ) ++ insn_block[ti] = (insn_block[ti] << 8) | buf_block[tj]; ++ } ++ + for (addr = func_addr; addr < stop; addr += INST_WORD_SIZE) + { +- insn = microblaze_fetch_instruction (addr); ++ //insn = microblaze_fetch_instruction (addr); ++ insn = insn_block[(addr - func_addr) / INST_WORD_SIZE]; + op = microblaze_decode_insn (insn, &rd, &ra, &rb, &imm); + microblaze_debug ("%s %08lx\n", paddress (gdbarch, pc), insn); + +@@ -409,8 +427,9 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, + part of the prologue. */ + if (save_hidden_pointer_found) + prologue_end_addr -= INST_WORD_SIZE; +- +- return prologue_end_addr; ++ free(insn_block); ++ free(buf_block); ++ return prologue_end_addr; + } + + static CORE_ADDR +-- +1.9.0 + |