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| author | Thiago Jung Bauermann <bauerman@br.ibm.com> | 2009-03-25 21:15:04 +0000 |
|---|---|---|
| committer | Thiago Jung Bauermann <bauerman@br.ibm.com> | 2009-03-25 21:15:04 +0000 |
| commit | f04c6d38e2d725d7a813af49883eda0b07a91ad7 (patch) | |
| tree | e21b61325c6faf914f1b0f8dd15cfdbee126d1e8 /gdb/ppc-linux-nat.c | |
| parent | 41aacd835d8579739337737ae49209f688a86c8d (diff) | |
| download | gdb-f04c6d38e2d725d7a813af49883eda0b07a91ad7.zip gdb-f04c6d38e2d725d7a813af49883eda0b07a91ad7.tar.gz gdb-f04c6d38e2d725d7a813af49883eda0b07a91ad7.tar.bz2 | |
gdb/
Fix size of FPSCR in Power 7 processors.
* ppc-linux-nat.c (PPC_FEATURE_ARCH_2_05): Remove #define.
(PPC_FEATURE_HAS_DFP): New #define.
(ppc_linux_read_description): Check for DFP feature instead of
ISA 2.05 to decide on size of the FPSCR.
gdbserver/
Fix size of FPSCR in Power 7 processors.
* linux-ppc-low.c (PPC_FEATURE_ARCH_2_05): Remove #define.
(PPC_FEATURE_HAS_DFP): New #define.
(ppc_arch_setup): Check for DFP feature instead of ISA 2.05 to decide on
size of the FPSCR.
Diffstat (limited to 'gdb/ppc-linux-nat.c')
| -rw-r--r-- | gdb/ppc-linux-nat.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/gdb/ppc-linux-nat.c b/gdb/ppc-linux-nat.c index 034201b..b7e70d1 100644 --- a/gdb/ppc-linux-nat.c +++ b/gdb/ppc-linux-nat.c @@ -63,8 +63,8 @@ #ifndef PPC_FEATURE_BOOKE #define PPC_FEATURE_BOOKE 0x00008000 #endif -#ifndef PPC_FEATURE_ARCH_2_05 -#define PPC_FEATURE_ARCH_2_05 0x00001000 /* ISA 2.05 */ +#ifndef PPC_FEATURE_HAS_DFP +#define PPC_FEATURE_HAS_DFP 0x00000400 /* Decimal Floating Point. */ #endif /* Glibc's headers don't define PTRACE_GETVRREGS so we cannot use a @@ -1290,7 +1290,13 @@ ppc_linux_read_description (struct target_ops *ops) perror_with_name (_("Unable to fetch AltiVec registers")); } - if (ppc_linux_get_hwcap () & PPC_FEATURE_ARCH_2_05) + /* Power ISA 2.05 (implemented by Power 6 and newer processors) increases + the FPSCR from 32 bits to 64 bits. Even though Power 7 supports this + ISA version, it doesn't have PPC_FEATURE_ARCH_2_05 set, only + PPC_FEATURE_ARCH_2_06. Since for now the only bits used in the higher + half of the register are for Decimal Floating Point, we check if that + feature is available to decide the size of the FPSCR. */ + if (ppc_linux_get_hwcap () & PPC_FEATURE_HAS_DFP) isa205 = 1; /* Check for 64-bit inferior process. This is the case when the host is |