feat: add lab-rv32i-c-smalloc-sbrk-libc card

2026-07-21 19:14:20 +02:00
commit d522c15f75
33 changed files with 5965 additions and 0 deletions
@@ -0,0 +1,36 @@
+  .section .text.startup,"ax",@progbits
+  .global _start
+  .type   _start, @function
+
+_start:
+.option push
+.option norelax
+  la      gp, __global_pointer$
+.option pop
+
+  /* One static TLS block is enough for this single-hart lab. */
+  la      tp, __tls_start
+
+  la      a0, __tbss_start
+  la      a1, __tbss_end
+clear_tbss:
+  bgeu    a0, a1, finish_tbss
+  sb      zero, 0(a0)
+  addi    a0, a0, 1
+  j       clear_tbss
+finish_tbss:
+
+  la      a0, __bss_start
+  la      a1, __bss_end
+clear_bss:
+  bgeu    a0, a1, finish_bss
+  sb      zero, 0(a0)
+  addi    a0, a0, 1
+  j       clear_bss
+finish_bss:
+
+  call    main
+  tail    _exit
+
+  .size  _start, .-_start
+