diff options
| author | Joakim Tjernlund <joakim.tjernlund@transmode.se> | 2007-03-19 18:02:16 +0000 |
|---|---|---|
| committer | Joakim Tjernlund <joakim.tjernlund@transmode.se> | 2007-03-19 18:02:16 +0000 |
| commit | 3850723af0f79ba4c5bcf701bd227b06340be6bb (patch) | |
| tree | 62259aeaadd40aeada011c4d0507569c1867b902 | |
| parent | ee238d84145433dd5df45adffe523ae8ddcc650f (diff) | |
Joseph S. Myers writes:
On PowerPC, r13 is used for a small data pointer and needs to be set up
from _SDA_BASE_ (defined by the linker) at startup.
This is needed for the GCC testcase gcc.target/powerpc/980827-1.c to work.
This patch fixes that testcase (verified for both static and dynamic
linking).
| -rw-r--r-- | libc/sysdeps/linux/powerpc/crt1.S | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/powerpc/crt1.S b/libc/sysdeps/linux/powerpc/crt1.S index 7928a7ed3..8798849b3 100644 --- a/libc/sysdeps/linux/powerpc/crt1.S +++ b/libc/sysdeps/linux/powerpc/crt1.S @@ -58,6 +58,13 @@ _start: mflr r31 # endif #endif + /* Set up the small data pointer in r13. */ +#ifdef __PIC__ + lwz r13,_SDA_BASE_@got(r31) +#else + lis r13,_SDA_BASE_@ha + addi r13,r13,_SDA_BASE_@l +#endif /* Set up an initial stack frame, and clear the LR. */ li r0,0 stwu r1,-16(r1) |