From: Lauri Kasanen <cand@gmx.com>
Date: Fri, 28 May 2021 08:40:27 +0000 (+0300)
Subject: Add dumping
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=090d2b2305d37c6b3af16318fbf3251aae7f1a3e;p=kvm-minippc.git

Add dumping
---

diff --git a/main.c b/main.c
index 5012602..d3d1e97 100644
--- a/main.c
+++ b/main.c
@@ -197,6 +197,43 @@ static void load(const char arg[], uint8_t *ram) {
 	fclose(f);
 }
 
+static void dump(const char src[], const uint8_t ram[]) {
+	const char *ptr = strchr(src, ':');
+	if (!ptr) {
+		printf("Invalid dump\n");
+		exit(1);
+	}
+
+	char name[PATH_MAX];
+	memcpy(name, src, ptr - src);
+	name[ptr - src] = '\0';
+
+	ptr++;
+	const uint32_t addr = strtol(ptr, NULL, 0);
+
+	ptr = strchr(ptr, ':');
+	if (!ptr) {
+		printf("Invalid dump\n");
+		exit(1);
+	}
+
+	ptr++;
+	const uint32_t len = strtol(ptr, NULL, 0);
+
+	//printf("Saving to %s, from %x, len %u\n", name, addr, len);
+
+	FILE *f = fopen(name, "w");
+	if (!f) {
+		printf("Can't open %s\n", name);
+		exit(1);
+	}
+
+	if (fwrite(&ram[addr], len, 1, f) != 1)
+		abort();
+
+	fclose(f);
+}
+
 static void setfpregs(const int vcpu, struct kvm_fpu *fpregs) {
 	// KVM_[SG]ET_FPU isn't supported on PPC, we have to move individual regs...
 	unsigned i;
@@ -407,6 +444,11 @@ int main(int argc, char **argv) {
 		printf("Exited because %u\n", run->exit_reason);
 	}
 
+	unsigned i;
+	for (i = 0; i < num_dumps; i++) {
+		dump(dumps[i], ram);
+	}
+
 	close(kvm);
 	free(progmem);
 	free(ram);