https://llvm.org/bugs/show_bug.cgi?id=27985
Bug ID: 27985
Summary: all DWARF DW_AT_name generation are wrong for ARM
Product: tools
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: llvm-as
Assignee: unassignedb...@nondot.org
Reporter: yi...@codeaurora.org
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Use any hello world .c , such as
int foo(char* ccc) {
char aaa[10];
aaa[1] = ccc[2];
return aaa[1];
}
clang -c -target arm -O0 -g t.c
dwarfdump -i t.o
We can see
.debug_info
COMPILE_UNIT<header overall offset = 0x00000000>:
< 0><0x0000000b> DW_TAG_compile_unit
DW_AT_producer "clang version 3.9.0
(http://llvm.org/git/clang.git 3d996e269b2a4c446a67d89d9d8b1c510168169b)
(http://llvm.org/git/llvm.git c27d8b42ef187b39e289d916599f694cc9796302)"
DW_AT_language DW_LANG_C99
DW_AT_name "clang version 3.9.0
(http://llvm.org/git/clang.git 3d996e269b2a4c446a67d89d9d8b1c510168169b)
(http://llvm.org/git/llvm.git c27d8b42ef187b39e289d916599f694cc9796302)"
DW_AT_stmt_list 0x00000000
DW_AT_comp_dir "clang version 3.9.0
(http://llvm.org/git/clang.git 3d996e269b2a4c446a67d89d9d8b1c510168169b)
(http://llvm.org/git/llvm.git c27d8b42ef187b39e289d916599f694cc9796302)"
DW_AT_low_pc 0x00000000
DW_AT_high_pc <offset-from-lowpc>36
LOCAL_SYMBOLS:
< 1><0x00000026> DW_TAG_subprogram
DW_AT_low_pc 0x00000000
DW_AT_high_pc <offset-from-lowpc>36
DW_AT_frame_base len 0x0001: 5d: DW_OP_reg13
DW_AT_name "clang version 3.9.0
(http://llvm.org/git/clang.git 3d996e269b2a4c446a67d89d9d8b1c510168169b)
(http://llvm.org/git/llvm.git c27d8b42ef187b39e289d916599f694cc9796302)"
DW_AT_decl_file 0x00000001 clang version
3.9.0 (http://llvm.org/git/clang.git 3d996e269b2a4c446a67d89d9d8b1c510168169b)
(http://llvm.org/git/llvm.git c27d8b42ef187b39e289d916599f694cc9796302)/t.c
DW_AT_decl_line 0x00000001
DW_AT_prototyped yes(1)
DW_AT_type <0x00000058>
DW_AT_external yes(1)
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