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| author | Andrew Waterman <waterman@cs.berkeley.edu> | 2014-12-12 16:07:46 -0800 |
|---|---|---|
| committer | Andrew Waterman <waterman@cs.berkeley.edu> | 2014-12-12 16:10:44 -0800 |
| commit | 1d8e02859be502647b52a71623f543712c869b2f (patch) | |
| tree | b9b0bdde5cb9e7786e55ef8693e1e886e05db455 /benchmarks/common | |
| parent | 834cd6bd0b65360515ba205ace61c96f83f81867 (diff) | |
| download | riscv-tests-1d8e02859be502647b52a71623f543712c869b2f.zip riscv-tests-1d8e02859be502647b52a71623f543712c869b2f.tar.gz riscv-tests-1d8e02859be502647b52a71623f543712c869b2f.tar.bz2 | |
Use user stack in supervisor mode
This fixes a race condition, as there was only one kernel stack.
Diffstat (limited to 'benchmarks/common')
| -rw-r--r-- | benchmarks/common/crt.S | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/benchmarks/common/crt.S b/benchmarks/common/crt.S index 24d22e8..2c004d1 100644 --- a/benchmarks/common/crt.S +++ b/benchmarks/common/crt.S @@ -126,15 +126,7 @@ _start: sret trap_entry: - csrw sup0, sp - csrw sup1, t0 - csrr t0, status - andi t0, t0, SR_PS - bnez t0, 1f - la sp, kstacktop -1: addi sp, sp, -272 - csrr t0, sup1 SREG x1, 8(sp) SREG x2, 16(sp) @@ -216,13 +208,8 @@ trap_entry: LREG x30, 240(sp) LREG x31, 248(sp) - csrr sp, sup0 + addi sp, sp, 272 sret -.bss -.align 4 -.skip 4096 -kstacktop: - .section .tbss tls_start: |