diff options
Diffstat (limited to 'ld/ld.texinfo')
| -rw-r--r-- | ld/ld.texinfo | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/ld/ld.texinfo b/ld/ld.texinfo index 43e7e82..9e720de 100644 --- a/ld/ld.texinfo +++ b/ld/ld.texinfo @@ -3879,7 +3879,7 @@ not itself call any subroutines). @section @code{ld}'s support for interworking between ARM and Thumb code @cindex ARM interworking support -@cindex --support-old-code +@kindex --support-old-code For the ARM, @code{ld} will generate code stubs to allow functions calls betweem ARM and Thumb code. These stubs only work with code that has been compiled and assembled with the @samp{-mthumb-interwork} command @@ -3891,6 +3891,15 @@ which will work with non-interworking aware ARM code. Note, however, the linker does not support generating stubs for function calls to non-interworking aware Thumb code. +@cindex thumb entry point +@cindex entry point, thumb +@kindex --thumb-entry=@var{entry} +The @samp{--thumb-entry} switch is a duplicate of the generic +@samp{--entry} switch, in that it sets the program's starting address. +But it also sets the bottom bit of the address, so that it can be +branched to using a BX instruction, and the program will start +executing in Thumb mode straight away. + @ifclear GENERIC @lowersections @end ifclear |