gdbstub: threads initial impl

blankchenxm · Apr 24, 2023 · 6f2d4d2 · 6f2d4d2
1 parent 85626f1
commit 6f2d4d2
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Showing 5 changed files with 165 additions and 54 deletions.
diff --git a/Makefile b/Makefile
@@ -22,7 +22,7 @@ bin/rt.dmp: bin bin/rt.o
  $(RVOD) -D -M no-aliases -M numeric bin/rt-nodbg.o > bin/rt.dmp
 
 bin/rv: bin rv.c
- $(CC) -o bin/rv rv.c -Wall -Werror --std=c89 -pedantic -Wextra -g
+ $(CC) -o bin/rv rv.c -Wall -Werror --std=c89 -pedantic -Wextra -g -fsanitize=address
 
 dump: bin bin/rt.dmp
  cat bin/rt.dmp

diff --git a/rt/main.c b/rt/main.c
@@ -1,6 +1,3 @@
 void rv_trap(void);
 
-void rv_main() {
- rv_trap();
- return;
-}
+void rv_main(void) { rv_trap(); }
diff --git a/rt/rt.s b/rt/rt.s
@@ -1,7 +1,11 @@
 .section .text.init, "ax"
 .global _start
 _start:
- li sp, 0x80010000
+ csrrs sp, mhartid, x0 # setup stack based on hartid
+ addi sp, sp, 1
+ slli sp, sp, 22
+ li t0, 0x40000000
+ add sp, sp, t0
  call rv_main
 
 .section .text