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49 lines
1.5 KiB
Diff
49 lines
1.5 KiB
Diff
From 524fd7244cfec4ec6760e52001c9a41d1913066e Mon Sep 17 00:00:00 2001
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From: Khem Raj <raj.khem@gmail.com>
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Date: Sun, 6 Apr 2025 20:54:08 -0700
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Subject: [PATCH] slp_switch: Implement for RISCV32
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Changed data types from long to int for fp variable
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stackref pointer and stsizediff variable
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Changed the load instruction from ld (64-bit load) to lw (32-bit load)
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Upstream-Status: Submitted [https://github.com/python-greenlet/greenlet/pull/439]
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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---
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src/greenlet/platform/switch_riscv_unix.h | 11 ++++++++++-
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1 file changed, 10 insertions(+), 1 deletion(-)
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diff --git a/src/greenlet/platform/switch_riscv_unix.h b/src/greenlet/platform/switch_riscv_unix.h
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index e74f37a..32ca78c 100644
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--- a/src/greenlet/platform/switch_riscv_unix.h
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+++ b/src/greenlet/platform/switch_riscv_unix.h
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@@ -11,9 +11,14 @@
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static int
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slp_switch(void)
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{
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- long fp;
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int ret;
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+#if __riscv_xlen == 32
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+ long fp;
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long *stackref, stsizediff;
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+#else
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+ int fp;
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+ int *stackref, stsizediff;
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+#endif
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__asm__ volatile ("" : : : REGS_TO_SAVE);
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__asm__ volatile ("mv %0, fp" : "=r" (fp) : );
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__asm__ volatile ("mv %0, sp" : "=r" (stackref) : );
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@@ -28,7 +33,11 @@ slp_switch(void)
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SLP_RESTORE_STATE();
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}
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__asm__ volatile ("" : : : REGS_TO_SAVE);
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+#if __riscv_xlen == 32
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+ __asm__ volatile ("lw fp, %0" : : "m" (fp));
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+#else
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__asm__ volatile ("ld fp, %0" : : "m" (fp));
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+#endif
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__asm__ volatile ("mv %0, zero" : "=r" (ret) : );
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return ret;
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}
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