Rather than building a command line for each operation, use the
functions provided by the bootm API.

Make sure that the bootm functions are available if pxe_utils is used.

Since SYS_BOOTM_LEN is not present for the tools-only build, adjust the
code to handle that.

Signed-off-by: Simon Glass <s...@chromium.org>
---

 boot/Makefile    |  2 +-
 boot/pxe_utils.c | 43 ++++++++++++++++++++-----------------------
 2 files changed, 21 insertions(+), 24 deletions(-)

diff --git a/boot/Makefile b/boot/Makefile
index 43def7c33d7..9ccdc2dc8f4 100644
--- a/boot/Makefile
+++ b/boot/Makefile
@@ -10,7 +10,7 @@ obj-$(CONFIG_CMD_BOOTM) += bootm.o bootm_os.o
 obj-$(CONFIG_CMD_BOOTZ) += bootm.o bootm_os.o
 obj-$(CONFIG_CMD_BOOTI) += bootm.o bootm_os.o
 
-obj-$(CONFIG_PXE_UTILS) += pxe_utils.o
+obj-$(CONFIG_PXE_UTILS) += bootm.o pxe_utils.o
 
 endif
 
diff --git a/boot/pxe_utils.c b/boot/pxe_utils.c
index 66f82d3fbc1..2517999d408 100644
--- a/boot/pxe_utils.c
+++ b/boot/pxe_utils.c
@@ -7,6 +7,7 @@
 #define LOG_CATEGORY   LOGC_BOOT
 
 #include <bootflow.h>
+#include <bootm.h>
 #include <command.h>
 #include <dm.h>
 #include <env.h>
@@ -461,7 +462,7 @@ skip_overlay:
  * Scenario 4: fdt blob is not available.
  */
 static int label_process_fdt(struct pxe_context *ctx, struct pxe_label *label,
-                            char *kernel_addr, char **fdt_argp)
+                            char *kernel_addr, const char **fdt_argp)
 {
        /* For FIT, the label can be identical to kernel one */
        if (label->fdt && !strcmp(label->kernel_label, label->fdt)) {
@@ -584,72 +585,66 @@ static int label_run_boot(struct pxe_context *ctx, struct 
pxe_label *label,
                          char *kernel_addr, char *initrd_addr_str,
                          char *initrd_filesize, char *initrd_str)
 {
-       char *bootm_argv[] = { "bootm", NULL, NULL, NULL, NULL };
        char *zboot_argv[] = { "zboot", NULL, "0", NULL, NULL };
+       struct bootm_info bmi;
        ulong kernel_addr_r;
-       int bootm_argc = 2;
        int zboot_argc = 3;
        void *buf;
        int ret;
 
-       bootm_argv[3] = env_get("fdt_addr_r");
+       bootm_init(&bmi);
 
-       ret = label_process_fdt(ctx, label, kernel_addr, &bootm_argv[3]);
+       bmi.conf_fdt = env_get("fdt_addr_r");
+
+       ret = label_process_fdt(ctx, label, kernel_addr, &bmi.conf_fdt);
        if (ret)
                return ret;
 
-       bootm_argv[1] = kernel_addr;
+       bmi.addr_img = kernel_addr;
        zboot_argv[1] = kernel_addr;
 
        if (initrd_addr_str) {
-               bootm_argv[2] = initrd_str;
-               bootm_argc = 3;
+               bmi.conf_ramdisk = initrd_str;
 
                zboot_argv[3] = initrd_addr_str;
                zboot_argv[4] = initrd_filesize;
                zboot_argc = 5;
        }
 
-       if (!bootm_argv[3]) {
+       if (!bmi.conf_fdt) {
                if (IS_ENABLED(CONFIG_SUPPORT_PASSING_ATAGS)) {
                        if (strcmp("-", label->fdt))
-                               bootm_argv[3] = env_get("fdt_addr");
+                               bmi.conf_fdt = env_get("fdt_addr");
                } else {
-                       bootm_argv[3] = env_get("fdt_addr");
+                       bmi.conf_fdt = env_get("fdt_addr");
                }
        }
 
        kernel_addr_r = genimg_get_kernel_addr(kernel_addr);
        buf = map_sysmem(kernel_addr_r, 0);
 
-       if (!bootm_argv[3] && genimg_get_format(buf) != IMAGE_FORMAT_FIT) {
+       if (!bmi.conf_fdt && genimg_get_format(buf) != IMAGE_FORMAT_FIT) {
                if (IS_ENABLED(CONFIG_SUPPORT_PASSING_ATAGS)) {
                        if (strcmp("-", label->fdt))
-                               bootm_argv[3] = env_get("fdtcontroladdr");
+                               bmi.conf_fdt = env_get("fdtcontroladdr");
                } else {
-                       bootm_argv[3] = env_get("fdtcontroladdr");
+                       bmi.conf_fdt = env_get("fdtcontroladdr");
                }
        }
 
-       if (bootm_argv[3]) {
-               if (!bootm_argv[2])
-                       bootm_argv[2] = "-";
-               bootm_argc = 4;
-       }
-
        /* Try bootm for legacy and FIT format image */
        if (genimg_get_format(buf) != IMAGE_FORMAT_INVALID &&
            IS_ENABLED(CONFIG_CMD_BOOTM)) {
                log_debug("using bootm\n");
-               do_bootm(ctx->cmdtp, 0, bootm_argc, bootm_argv);
+               ret = bootm_run(&bmi);
        /* Try booting an AArch64 Linux kernel image */
        } else if (IS_ENABLED(CONFIG_CMD_BOOTI)) {
                log_debug("using booti\n");
-               do_booti(ctx->cmdtp, 0, bootm_argc, bootm_argv);
+               ret = booti_run(&bmi);
        /* Try booting a Image */
        } else if (IS_ENABLED(CONFIG_CMD_BOOTZ)) {
                log_debug("using bootz\n");
-               do_bootz(ctx->cmdtp, 0, bootm_argc, bootm_argv);
+               ret = bootz_run(&bmi);
        /* Try booting an x86_64 Linux kernel image */
        } else if (IS_ENABLED(CONFIG_CMD_ZBOOT)) {
                log_debug("using zboot\n");
@@ -657,6 +652,8 @@ static int label_run_boot(struct pxe_context *ctx, struct 
pxe_label *label,
        }
 
        unmap_sysmem(buf);
+       if (ret)
+               return ret;
 
        return 0;
 }
-- 
2.34.1

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