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 /libc/sysdeps/linux | |
| 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 'libc/sysdeps/linux')
| -rw-r--r-- | libc/sysdeps/linux/arm/crt1.S | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/arm/crt1.S b/libc/sysdeps/linux/arm/crt1.S index 5da0fe19c..a1d7f0f23 100644 --- a/libc/sysdeps/linux/arm/crt1.S +++ b/libc/sysdeps/linux/arm/crt1.S @@ -97,12 +97,17 @@ ARM register quick reference: #if defined(__FDPIC__) .text - .arm .globl _start + .type _start,%function + .align 2 _start: /* Start by self relocation. */ +#if defined(__thumb2__) + sub r4, pc, #4 +#else sub r4, pc, #8 +#endif ldr r1, .L__ROFIXUP_LIST__ add r1, r1, r4 ldr r2, .L__ROFIXUP_END__ @@ -129,6 +134,7 @@ _start: ldr r4, [r9, r4] str r4, [sp, #0] /* sp + 0 GOT fini */ movs r4, r8 /* Test if static binary (r8 is 0 as there is no interpreter). */ + ite ne movne r4, r10 moveq r4, #0 str r4, [sp, #4] /* sp + 4 got rtld_fini */ |