diff options
| author | Khem Raj <raj.khem@gmail.com> | 2009-03-20 12:28:27 -0700 |
|---|---|---|
| committer | Khem Raj <raj.khem@gmail.com> | 2009-03-20 12:28:27 -0700 |
| commit | 8d0b0994a86b2800363b7d1ab4384bd87fb94f6a (patch) | |
| tree | ea45aabd41a00c38565bb10340f2fc60bc4414be /recipes/uclibc/files | |
| parent | a7b83866a10c1487125720d7583b9f6935ea9e61 (diff) | |
uclibc: Get uclibc working in thumb mode.
* WARNING!! Do not use bintils 2.19 or 2.19.1
when compiling in thumb mode. The veneer generation
does not work as expected. Use binutils 2.18 or binutils_cvs
* Move LEAD_SONAME into uclibc.inc
* Use no optimizations while compiling ldso.c
to over come a gcc ICE
* Use ARM mode resolver for thumb mode. The
resolver depends on ip register and if we
use thumb function for _dl_linux_resolve then
it adds a veneer which corrupts ip.
Diffstat (limited to 'recipes/uclibc/files')
| -rw-r--r-- | recipes/uclibc/files/ldso_use_arm_dl_linux_resolve_in_thumb_mode.patch | 21 | ||||
| -rw-r--r-- | recipes/uclibc/files/uclibc_ldso_use_O0.patch | 13 |
2 files changed, 34 insertions, 0 deletions
diff --git a/recipes/uclibc/files/ldso_use_arm_dl_linux_resolve_in_thumb_mode.patch b/recipes/uclibc/files/ldso_use_arm_dl_linux_resolve_in_thumb_mode.patch new file mode 100644 index 0000000000..cfa68ce52d --- /dev/null +++ b/recipes/uclibc/files/ldso_use_arm_dl_linux_resolve_in_thumb_mode.patch @@ -0,0 +1,21 @@ +Index: uClibc/ldso/ldso/arm/resolve.S +=================================================================== +--- uClibc.orig/ldso/ldso/arm/resolve.S 2009-03-20 12:03:32.000000000 -0700 ++++ uClibc/ldso/ldso/arm/resolve.S 2009-03-20 12:04:23.000000000 -0700 +@@ -97,7 +97,6 @@ + + .text + .align 4 @ 16 byte boundary and there are 32 bytes below (arm case) +- #if !defined(__thumb__) || defined(__thumb2__) + .arm + .globl _dl_linux_resolve + .type _dl_linux_resolve,%function +@@ -129,7 +128,7 @@ + #else + mov pc,ip + #endif +-#else ++#if 0 + @ In the thumb case _dl_linux_resolver is thumb. If a bl is used + @ from arm code the linker will insert a stub call which, with + @ binutils 2.16, is not PIC. Since this code is accessed by an diff --git a/recipes/uclibc/files/uclibc_ldso_use_O0.patch b/recipes/uclibc/files/uclibc_ldso_use_O0.patch new file mode 100644 index 0000000000..7a89e66621 --- /dev/null +++ b/recipes/uclibc/files/uclibc_ldso_use_O0.patch @@ -0,0 +1,13 @@ +Index: uClibc/ldso/ldso/Makefile.in +=================================================================== +--- uClibc.orig/ldso/ldso/Makefile.in 2009-02-03 17:27:55.000000000 -0800 ++++ uClibc/ldso/ldso/Makefile.in 2009-02-03 17:28:11.000000000 -0800 +@@ -8,7 +8,7 @@ + CFLAGS-ldso := -DNOT_IN_libc -DIS_IN_rtld $(SSP_DISABLE_FLAGS) + + # This stuff will not work with -fomit-frame-pointer +-CFLAGS-ldso += -fno-omit-frame-pointer ++CFLAGS-ldso += -O0 -fno-omit-frame-pointer + + CFLAGS-ldso += -I$(top_srcdir)ldso/ldso/$(TARGET_ARCH) -I$(top_srcdir)ldso/include -I$(top_srcdir)ldso/ldso + CFLAGS-ldso += -DUCLIBC_RUNTIME_PREFIX=\"$(RUNTIME_PREFIX)\" -DUCLIBC_LDSO=\"$(UCLIBC_LDSO)\" |