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Subject: Re: Gdb shows wrong line numbers for the sourcecode
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From: Paul Koning <paul_koning@dell.com>
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Date: Mon, 20 Jun 2011 18:31:00 -0000
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To: Josef Wolf <jw@raven.inka.de>
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Probably the fact that your GDB is an antique.

I found that a version of GDB not nearly so out of date was unuseable with =
current GCC.  Updated to the current (7.2) and all is well.

	paul

On Jun 20, 2011, at 1:39 PM, Josef Wolf wrote:

> Hello,
>=20
> I have built a toolchain for ARM Cortex-M3 based on
>=20
> binutils-2.20
> gcc-4.4.3
> gdb-6.0
> openocd-0.4.0
>=20
> With this combination, gdb shows wrong line numbers and wrong lines in the
> source listings and in the backtrace like this:
>=20
> (gdb) bt
> #0  0x080004a6 in main (argc=3D536891392, argv=3D0x20005000) at main.c:45
> (gdb) cont
> Continuing.
>=20
> Breakpoint 2, 0x080003a4 in send_char (ch=3D19 '\023') at main.c:45
> 45              while (RCC_GetFlagStatus (RCC_FLAG_PLLRDY) =3D=3D RESET) {
> (gdb) bt
> #0  0x080003a4 in send_char (ch=3D19 '\023') at main.c:45
> #1  0x080004ca in main (argc=3D536891392, argv=3D0x20005000) at main.c:45
>=20
> In reality, the main function begins at line 91 and the send_char function
> begins at line 84. The source code line shown at the breakpoint is a tota=
lly
> different function.
>=20
> Any ideas what could cause gdb to get confused?