| To: | linux-mips@linux-mips.org |
|---|---|
| Subject: | bal instruction in gcc 3.x |
| From: | Kishore K <hellokishore@gmail.com> |
| Date: | Tue, 19 Jul 2005 22:00:20 +0530 |
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| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| Reply-to: | Kishore K <hellokishore@gmail.com> |
| Sender: | linux-mips-bounce@linux-mips.org |
We are facing a problem when U-boot is compiled with gcc 3.x U-boot uses the following instruction in one of the files. bal jump_to_symbol This code gets compiled without any problem with gcc2. However, if I compile the code with gcc3, it exits with the error "Cannot branch to unknown symbol". What should we do to circumvent this problem ? I replaced bal jump_to_symbol by la t9, jump_to_symbol jalr t9 Then code gets compiled properly without any problem. Please let me know, whether this is correct way of fixing the problem. I am newbie to MIPS assembly language. Why this change is required with gcc 3.x compiler ? TIA, --kishore |
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