Hi all:
In arm-*-elf target some variable will missing size directive,
for example:
foo.c:
void foo (void) {
static char bufbuf[8];
}
$ arm-none-eabi-gcc ./foo.c -S -o -
...
.align 2
bufbuf.4078:
.space 8
...
.ident "GCC: (GNU) 5.0.0 20140828 (experimental)"
And then the size info will missing:
$ arm-none-eabi-objdump ./foo.o -t
./foo.o: file format elf32-littlearm
SYMBOL TABLE:
00000000 l df *ABS* 00000000 zoo.c
00000000 l d .text 00000000 .text
00000000 l d .data 00000000 .data
00000000 l d .bss 00000000 .bss
00000000 l .bss 00000008 bufbuf.4078
00000000 l d .comment 00000000 .comment
00000000 l d .ARM.attributes 00000000 .ARM.attributes
00000000 g F .text 00000018 foo
ChangeLog
2014-09-01 Kito Cheng <k...@0xlab.org>
* config/arm/unknown-elf.h (ASM_OUTPUT_ALIGNED_DECL_LOCAL):
Add size directive.
From e0034653a4d457708fc4d858ea20fab70a42d798 Mon Sep 17 00:00:00 2001
From: Kito Cheng <kito.ch...@gmail.com>
Date: Mon, 1 Sep 2014 11:19:13 +0800
Subject: [PATCH] Add missing size directive for arm-elf
ChangeLog
2014-09-01 Kito Cheng <k...@0xlab.org>
* config/arm/unknown-elf.h (ASM_OUTPUT_ALIGNED_DECL_LOCAL): Add size directive.
---
gcc/config/arm/unknown-elf.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/gcc/config/arm/unknown-elf.h b/gcc/config/arm/unknown-elf.h
index 56aa166..b4d1757 100644
--- a/gcc/config/arm/unknown-elf.h
+++ b/gcc/config/arm/unknown-elf.h
@@ -81,6 +81,7 @@
ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT)); \
ASM_OUTPUT_LABEL (FILE, NAME); \
fprintf (FILE, "\t.space\t%d\n", SIZE ? (int)(SIZE) : 1); \
+ ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE); \
} \
while (0)
--
1.9.3
