diff options
| author | Christophe Lyon <christophe.lyon@linaro.org> | 2018-10-29 14:34:25 +0000 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2018-11-01 04:43:45 +0100 |
| commit | b2db04d0a81a9784d4a007be3bfef21aee207f8f (patch) | |
| tree | ff417b99d916ba18fcde41df079830d103acdc11 /ldso/ldso/arm/dl-startup.h | |
| parent | 1b41063f4019bd76a7e0f6b429fff5c5dc297fa6 (diff) | |
Add support for Thumb-only processors.
* ldso/ldso/arm/aeabi_read_tp.S: Add Thumb version.
* ldso/ldso/arm/dl-startup.h: Do not force ARM encoding, adjust
for Thumb.
* ldso/ldso/arm/resolve.S: Force Thumb encoding on Thumb-only
processors.
* libc/sysdeps/linux/arm/crt1.S: Do not force ARM encoding, adjust
for Thumb.
Signed-off-by: Mickaël Guêné <mickael.guene@st.com>
Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
Diffstat (limited to 'ldso/ldso/arm/dl-startup.h')
| -rw-r--r-- | ldso/ldso/arm/dl-startup.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/ldso/ldso/arm/dl-startup.h b/ldso/ldso/arm/dl-startup.h index 06c95cb44..cacd461e1 100644 --- a/ldso/ldso/arm/dl-startup.h +++ b/ldso/ldso/arm/dl-startup.h @@ -11,10 +11,13 @@ #if defined(__FDPIC__) #if !defined(__thumb__) || defined(__thumb2__) __asm__( - " .arm\n" " .text\n" " .globl _start\n" " .type _start,%function\n" +#if defined(__thumb2__) + " .thumb_func\n" +#endif + " .align 2\n" "_start:\n" /* We compute the parameters for __self_reloc: - r0 is a pointer to the loadmap (either from r8 or r7 if rtld is @@ -25,12 +28,17 @@ __asm__( __self_reloc will fix indirect addresses in .rofixup section and will return the relocated GOT value. */ +#if defined(__thumb2__) + " sub r4, pc, #4\n" +#else " sub r4, pc, #8\n" +#endif " ldr r1, .L__ROFIXUP_LIST__\n" " add r1, r1, r4\n" " ldr r2, .L__ROFIXUP_END__\n" " add r2, r2, r4\n" " movs r0, r8\n" + " it eq\n" " moveq r0, r7\n" " push {r7, r8, r9, r10}\n" " bl __self_reloc;\n" |