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| author | Stefan O'Rear <[email protected]> | 2020-09-03 05:40:29 -0400 |
|---|---|---|
| committer | Rich Felker <[email protected]> | 2024-02-29 16:35:30 -0500 |
| commit | 01d9fe4d9f7cce7a6dbaece0e2e405a2e3279244 (patch) | |
| tree | bed13ff84c58d124a99b0799841812b29b3eeba1 /arch/riscv32/reloc.h | |
| parent | 5c653ccaa1383db0c310abf66d5b6806e83ac18f (diff) | |
| download | musl-01d9fe4d9f7cce7a6dbaece0e2e405a2e3279244.tar.gz | |
riscv32: add arch headers
These are mostly copied from riscv64. _Addr and _Reg had to become int
to match compiler-controlled parts of the ABI (result type of sizeof,
etc.). There is no kernel stat struct; the userspace stat matches
glibc in the sizes and offsets of all fields (including glibc's
__dev_t __pad1). The jump buffer is 12 words larger to account for 12
saved double-precision floats; additionally it should be 64-bit
aligned to save doubles.
The syscall list was significantly revised by deleting all time32 and
pre-statx syscalls, and renaming several syscalls that have different
names depending on __BITS_PER_LONG, notably mmap2 and _llseek.
futex was added as an alias to futex_time64 since it is widely used by
software which does not pass time arguments.
Diffstat (limited to 'arch/riscv32/reloc.h')
| -rw-r--r-- | arch/riscv32/reloc.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/riscv32/reloc.h b/arch/riscv32/reloc.h new file mode 100644 index 00000000..59d15f17 --- /dev/null +++ b/arch/riscv32/reloc.h @@ -0,0 +1,22 @@ +#if defined __riscv_float_abi_soft +#define RISCV_FP_SUFFIX "-sf" +#elif defined __riscv_float_abi_single +#define RISCV_FP_SUFFIX "-sp" +#elif defined __riscv_float_abi_double +#define RISCV_FP_SUFFIX "" +#endif + +#define LDSO_ARCH "riscv32" RISCV_FP_SUFFIX + +#define TPOFF_K 0 + +#define REL_SYMBOLIC R_RISCV_32 +#define REL_PLT R_RISCV_JUMP_SLOT +#define REL_RELATIVE R_RISCV_RELATIVE +#define REL_COPY R_RISCV_COPY +#define REL_DTPMOD R_RISCV_TLS_DTPMOD32 +#define REL_DTPOFF R_RISCV_TLS_DTPREL32 +#define REL_TPOFF R_RISCV_TLS_TPREL32 + +#define CRTJMP(pc,sp) __asm__ __volatile__( \ + "mv sp, %1 ; jr %0" : : "r"(pc), "r"(sp) : "memory" ) |