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| author | Chris Metcalf <cmetcalf@tilera.com> | 2010-08-13 08:32:21 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2010-08-13 08:32:21 -0400 |
| commit | 32020effaf713c0c669864301bcd5dac6b9bb9e0 (patch) | |
| tree | 86bca127e785fe2170bfec548ebc6be549a842b8 /arch/tile/include | |
| parent | 749dc6f252b57d5cb9c1f4c1c4aafe4c92a28207 (diff) | |
| download | linux-stable-32020effaf713c0c669864301bcd5dac6b9bb9e0.tar.gz linux-stable-32020effaf713c0c669864301bcd5dac6b9bb9e0.tar.bz2 linux-stable-32020effaf713c0c669864301bcd5dac6b9bb9e0.zip | |
arch/tile: Fix a couple of issues with the COMPAT code for TILE-Gx.
First, the siginfo preamble wasn't quite right; we need to indicate
that we are padding up to 4 ints of preamble for 64-bit code, and
then for compat mode we need to pad differently, using only 3 ints.
Second, the C ABI requires a save area of two registers, not two
pointers, since in compat mode we have 64-bit registers all of which
we need to save, even though we only have 32-bit VAs.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/include')
| -rw-r--r-- | arch/tile/include/arch/abi.h | 4 | ||||
| -rw-r--r-- | arch/tile/include/asm/siginfo.h | 4 |
2 files changed, 5 insertions, 3 deletions
diff --git a/arch/tile/include/arch/abi.h b/arch/tile/include/arch/abi.h index da8df5b9d914..8affc76f771a 100644 --- a/arch/tile/include/arch/abi.h +++ b/arch/tile/include/arch/abi.h @@ -59,9 +59,7 @@ * The ABI requires callers to allocate a caller state save area of * this many bytes at the bottom of each stack frame. */ -#ifdef __tile__ -#define C_ABI_SAVE_AREA_SIZE (2 * __SIZEOF_POINTER__) -#endif +#define C_ABI_SAVE_AREA_SIZE (2 * (CHIP_WORD_SIZE() / 8)) /** * The operand to an 'info' opcode directing the backtracer to not diff --git a/arch/tile/include/asm/siginfo.h b/arch/tile/include/asm/siginfo.h index 0c12d1b9ddf2..56d661bb010b 100644 --- a/arch/tile/include/asm/siginfo.h +++ b/arch/tile/include/asm/siginfo.h @@ -17,6 +17,10 @@ #define __ARCH_SI_TRAPNO +#ifdef __LP64__ +# define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) +#endif + #include <asm-generic/siginfo.h> /* |