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From c0e74b79cc1db2f68dd560154225da1e5ddfd920 Mon Sep 17 00:00:00 2001
From: Mahesh Bodapati <mbodapat@xilinx.com>
Date: Tue, 17 Jan 2017 14:41:58 +0530
Subject: [PATCH 17/54] [Patch, microblaze]: Add INIT_PRIORITY support Added
TARGET_ASM_CONSTRUCTOR and TARGET_ASM_DESTRUCTOR macros.
These macros allows users to control the order of initialization
of objects defined at namespace scope with the init_priority
attribute by specifying a relative priority, a constant integral
expression currently bounded between 101 and 65535 inclusive.
Lower numbers indicate a higher priority.
Changelog
2013-11-26 Nagaraju Mekala <nagaraju.mekala@xilinx.com>
* gcc/config/microblaze/microblaze.c: Add microblaze_asm_constructor,
microblaze_asm_destructor. Define TARGET_ASM_CONSTRUCTOR and
TARGET_ASM_DESTRUCTOR.
Signed-off-by:nagaraju <nmekala@xilix.com>
Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
---
gcc/config/microblaze/microblaze.c | 53 ++++++++++++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c
index 6f0b4f4..53b44df 100644
--- a/gcc/config/microblaze/microblaze.c
+++ b/gcc/config/microblaze/microblaze.c
@@ -2554,6 +2554,53 @@ print_operand_address (FILE * file, rtx addr)
}
}
+/* Output an element in the table of global constructors. */
+void
+microblaze_asm_constructor (rtx symbol ATTRIBUTE_UNUSED, int priority)
+{
+ const char *section = ".ctors";
+ char buf[16];
+
+ if (priority != DEFAULT_INIT_PRIORITY)
+ {
+ sprintf (buf, ".ctors.%.5u",
+ /* Invert the numbering so the linker puts us in the proper
+ order; constructors are run from right to left, and the
+ linker sorts in increasing order. */
+ MAX_INIT_PRIORITY - priority);
+ section = buf;
+ }
+
+ switch_to_section (get_section (section, 0, NULL));
+ assemble_align (POINTER_SIZE);
+ fputs ("\t.word\t", asm_out_file);
+ output_addr_const (asm_out_file, symbol);
+ fputs ("\n", asm_out_file);
+}
+
+/* Output an element in the table of global destructors. */
+void
+microblaze_asm_destructor (rtx symbol, int priority)
+{
+ const char *section = ".dtors";
+ char buf[16];
+ if (priority != DEFAULT_INIT_PRIORITY)
+ {
+ sprintf (buf, ".dtors.%.5u",
+ /* Invert the numbering so the linker puts us in the proper
+ order; constructors are run from right to left, and the
+ linker sorts in increasing order. */
+ MAX_INIT_PRIORITY - priority);
+ section = buf;
+ }
+
+ switch_to_section (get_section (section, 0, NULL));
+ assemble_align (POINTER_SIZE);
+ fputs ("\t.word\t", asm_out_file);
+ output_addr_const (asm_out_file, symbol);
+ fputs ("\n", asm_out_file);
+}
+
/* Emit either a label, .comm, or .lcomm directive, and mark that the symbol
is used, so that we don't emit an .extern for it in
microblaze_asm_file_end. */
@@ -3841,6 +3888,12 @@ microblaze_starting_frame_offset (void)
#undef TARGET_ATTRIBUTE_TABLE
#define TARGET_ATTRIBUTE_TABLE microblaze_attribute_table
+#undef TARGET_ASM_CONSTRUCTOR
+#define TARGET_ASM_CONSTRUCTOR microblaze_asm_constructor
+
+#undef TARGET_ASM_DESTRUCTOR
+#define TARGET_ASM_DESTRUCTOR microblaze_asm_destructor
+
#undef TARGET_IN_SMALL_DATA_P
#define TARGET_IN_SMALL_DATA_P microblaze_elf_in_small_data_p
--
2.7.4
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