riscv/musl - musl - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Rich Felker	8274aaaaa1	fix hwcap access in powerpc-sf setjmp/longjmp commit `7be59733d7` introduced the hwcap-based branches to support the SPE FPU, but wrongly coded them as bitwise tests on the computed address of __hwcap, not a value loaded from that address. replace the add with indexed load to fix it.	5 years ago
Rich Felker	7be59733d7	add SPE FPU support to powerpc-sf When the soft-float ABI for PowerPC was added in commit `5a92dd95c7`, with Freescale cpus using the alternative SPE FPU as the main use case, it was noted that we could probably support hard float on them, but that it would involve determining some difficult ABI constraints. This commit is the completion of that work. The Power-Arch-32 ABI supplement defines the ABI profiles, and indeed ATR-SPE is built on ATR-SOFT-FLOAT. But setjmp/longjmp compatibility are problematic for the same reason they're problematic on ARM, where optional float-related parts of the register file are "call-saved if present". This requires testing __hwcap, which is now done. In keeping with the existing powerpc-sf subarch definition, which did not have fenv, the fenv macros are not defined for SPE and the SPEFSCR control register is left (and assumed to start in) the default mode.	5 years ago
Felix Fietkau	5a92dd95c7	add powerpc soft-float support Some PowerPC CPUs (e.g. Freescale MPC85xx) have a completely different instruction set for floating point operations (SPE). Executing regular PowerPC floating point instructions results in "Illegal instruction" errors. Make it possible to run these devices in soft-float mode.	10 years ago
Rich Felker	cf1a9d9d16	remove possible-textrels from powerpc asm these are perfectly fine with ld-time symbol binding, but otherwise result in textrels. they cannot be replaced with @PLT jump targets because the PLT thunks require a GOT register to be setup, so use a hidden alias instead.	11 years ago
Rich Felker	a50136dfe1	fix powerpc setjmp/longjmp to save/restore float regs; enlarge/align jmp_buf	14 years ago
Rich Felker	d1bf452d75	fix indention with spaces in powerpc asm	14 years ago
rofl0r	1c8eb8bad7	PPC port cleaned up, static linking works well now.	14 years ago