diff options
Diffstat (limited to 'qemu/roms/seabios/docs/Linking_overview.md')
| -rw-r--r-- | qemu/roms/seabios/docs/Linking_overview.md | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/qemu/roms/seabios/docs/Linking_overview.md b/qemu/roms/seabios/docs/Linking_overview.md index fb938b632..bcb8298c3 100644 --- a/qemu/roms/seabios/docs/Linking_overview.md +++ b/qemu/roms/seabios/docs/Linking_overview.md @@ -92,15 +92,9 @@ those situations where an address of a C function in another mode is required the build supports symbols with a special "\_cfuncX_" prefix. The layoutrom.py script detects these references and will emit a corresponding symbol definitions in the linker script that points to -the C code of the specified mode. This is typically seen with code -like: - -`extern void _cfunc32flat_process_op(void);`\ -`return call32(_cfunc32flat_process_op, 0, 0);` - -In the above example, when the build finds the symbol -"\_cfunc32flat_process_op" it will emit that symbol with the physical -address of the 32bit "flat" version of the process_op() C function. +the C code of the specified mode. The call32() and stack_hop_back() +macros automatically add the required prefix for C code, but the +prefixes need to be explicitly added in assembler code. Build garbage collection ------------------------ |