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| author | liuzhensong <liuzhensong@loongson.cn> | 2022-08-04 14:30:39 +0800 |
|---|---|---|
| committer | liuzhensong <liuzhensong@loongson.cn> | 2022-09-30 14:00:47 +0800 |
| commit | c4a7e6b56218e1d5a858682186b542e2eae01a4a (patch) | |
| tree | cc3a1b9f8227ed91cea78da16773225743d1ebc5 /include | |
| parent | 0d94a8735055432029237612a6eb9165db1ec9dd (diff) | |
| download | gdb-c4a7e6b56218e1d5a858682186b542e2eae01a4a.zip gdb-c4a7e6b56218e1d5a858682186b542e2eae01a4a.tar.gz gdb-c4a7e6b56218e1d5a858682186b542e2eae01a4a.tar.bz2 | |
LoongArch: Update ELF e_flags handling according to specification.
Update handling of e_flags according to the documentation
update [1] (discussions [2][3]).
Object file bitness is now represented in the EI_CLASS byte.
The e_flags field is now interpreted as follows:
e_flags[2:0]: Base ABI modifier
- 0x1: soft-float
- 0x2: single-precision hard-float
- 0x3: double-precision hard-float
e_flags[7:6]: ELF object ABI version
- 0x0: v0
- 0x1: v1
[1]: https://github.com/loongson/LoongArch-Documentation/blob/main/docs/LoongArch-ELF-ABI-EN.adoc#e_flags-identifies-abi-type-and-version
[2]: https://github.com/loongson/LoongArch-Documentation/pull/61
[3]: https://github.com/loongson/LoongArch-Documentation/pull/47
Diffstat (limited to 'include')
| -rw-r--r-- | include/elf/loongarch.h | 44 |
1 files changed, 21 insertions, 23 deletions
diff --git a/include/elf/loongarch.h b/include/elf/loongarch.h index 74757b8..a6341b4 100644 --- a/include/elf/loongarch.h +++ b/include/elf/loongarch.h @@ -232,36 +232,34 @@ RELOC_NUMBER (R_LARCH_RELAX, 100) END_RELOC_NUMBERS (R_LARCH_count) /* Processor specific flags for the ELF header e_flags field. */ -/*The flag lp64s/lp64f/lp64d/ilp32s/ilp32f/ilp32d 3bits. */ -#define EF_LOONGARCH_ABI_LP64_SOFT_FLOAT 0x1 -#define EF_LOONGARCH_ABI_LP64_SINGLE_FLOAT 0x2 -#define EF_LOONGARCH_ABI_LP64_DOUBLE_FLOAT 0x3 +/* Base ABI modifier, 3bits. */ +#define EF_LOONGARCH_ABI_SOFT_FLOAT 0x1 +#define EF_LOONGARCH_ABI_SINGLE_FLOAT 0x2 +#define EF_LOONGARCH_ABI_DOUBLE_FLOAT 0x3 +#define EF_LOONGARCH_ABI_MODIFIER_MASK 0x7 -#define EF_LOONGARCH_ABI_ILP32_SOFT_FLOAT 0x5 -#define EF_LOONGARCH_ABI_ILP32_SINGLE_FLOAT 0x6 -#define EF_LOONGARCH_ABI_ILP32_DOUBLE_FLOAT 0x7 +#define EF_LOONGARCH_OBJABI_V1 0x40 +#define EF_LOONGARCH_OBJABI_MASK 0xC0 -#define EF_LOONGARCH_ABI_MASK 0x7 -#define EF_LOONGARCH_ABI_ILP32_MASK 0x4 -#define EF_LOONGARCH_ABI_FLOAT_MASK 0x3 -#define EF_LOONGARCH_ABI_SOFT_FLOAT_MASK 0x1 -#define EF_LOONGARCH_ABI_SINGLE_FLOAT_MASK 0x2 -#define EF_LOONGARCH_ABI_DOUBLE_FLOAT_MASK 0x3 +#define EF_LOONGARCH_ABI_MASK \ + (EF_LOONGARCH_OBJABI_MASK | EF_LOONGARCH_ABI_MODIFIER_MASK) -#define EF_LOONGARCH_ABI(abi) (EF_LOONGARCH_ABI_MASK & (abi)) +#define EF_LOONGARCH_ABI_MODIFIER(abi) \ + (EF_LOONGARCH_ABI_MODIFIER_MASK & (abi)) +#define EF_LOONGARCH_OBJABI(abi) \ + (EF_LOONGARCH_OBJABI_MASK & (abi)) -#define EF_LOONGARCH_IS_LP64(abi) \ - (EF_LOONGARCH_ABI(abi) && (!(EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_ILP32_MASK))) -#define EF_LOONGARCH_IS_ILP32(abi) \ - (EF_LOONGARCH_ABI(abi) && (EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_ILP32_MASK)) +#define EF_LOONGARCH_ABI(abi) ((abi) & EF_LOONGARCH_ABI_MASK) #define EF_LOONGARCH_IS_SOFT_FLOAT(abi) \ - (!((EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_FLOAT_MASK) ^ EF_LOONGARCH_ABI_SOFT_FLOAT_MASK)) - + (EF_LOONGARCH_ABI_MODIFIER (abi) == EF_LOONGARCH_ABI_SOFT_FLOAT) #define EF_LOONGARCH_IS_SINGLE_FLOAT(abi) \ - (!((EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_FLOAT_MASK) ^ EF_LOONGARCH_ABI_SINGLE_FLOAT_MASK)) - + (EF_LOONGARCH_ABI_MODIFIER (abi) == EF_LOONGARCH_ABI_SINGLE_FLOAT) #define EF_LOONGARCH_IS_DOUBLE_FLOAT(abi) \ - (!((EF_LOONGARCH_ABI(abi) & EF_LOONGARCH_ABI_FLOAT_MASK) ^ EF_LOONGARCH_ABI_DOUBLE_FLOAT_MASK)) + (EF_LOONGARCH_ABI_MODIFIER (abi) == EF_LOONGARCH_ABI_DOUBLE_FLOAT) + +#define EF_LOONGARCH_IS_OBJ_V0(abi) (!EF_LOONGARCH_OBJABI (abi)) +#define EF_LOONGARCH_IS_OBJ_V1(abi) \ + (EF_LOONGARCH_OBJABI (abi) == EF_LOONGARCH_OBJABI_V1) #endif /* _ELF_LOONGARCH_H */ |