Hello,
I'm building a #GP fault handler for a shell application. I named my
file __gp_fault_handler.S and I added it to my inf file. Everything compiles
and
the exception handler actually works.
However, now I want to set a global variable that is declared in a
separate "C" file. When I assemble my file GAS uses a R_X86_64_32S offset to
the
variable. In my other "C" files I see that the compiler uses a R_X86_64_64
offset
to my variable instead.
How can I get the GNU assembler to output a R_X86_64_64 offset in the
EDK2 build?
Thanks,
Stephen
Here's a shortened version of my assembly code:
.extern EXCEPTION_EXECUTE_HANDLER
.global __gp_fault_handler
__gp_fault_handler: .code64
# Set the GP_FAULT flag
movl $1, EXCEPTION_EXECUTE_HANDLER
Here is the GNU assembler output:
Disassembly of section .text:
0000000000000000 <__gp_fault_handler>:
16: c7 04 25 00 00 00 00 movl $0x1,0x0
1d: 01 00 00 00
19: R_X86_64_32S EXCEPTION_EXECUTE_HANDLER
------------------------------------------------------------------------------
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