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Improve grub2 mode process for legacy BIOS mode.

This commit is contained in:
longpanda 2023-04-05 20:16:36 +08:00
parent 142aa47944
commit 07574f0379
1 changed files with 88 additions and 48 deletions
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136
GRUB2/MOD_SRC/grub-2.04/grub-core/loader/i386/linux.c
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@ -88,6 +88,8 @@ static int ventoy_linux_argc = 0;
static char **ventoy_linux_args = NULL;
static int ventoy_extra_initrd_num = 0;
static char *ventoy_extra_initrd_list[256];
static grub_command_func_t ventoy_linux16_func = NULL;
static grub_command_func_t ventoy_initrd16_func = NULL;
static grub_err_t
grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)), int argc, char *argv[]);
@ -667,54 +669,6 @@ static int ventoy_bootopt_hook(int argc, char *argv[])
return 0;
}
static grub_err_t
grub_cmd_set_boot_opt (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
int i;
const char *vtdebug;
for (i = 0; i < argc; i++)
{
ventoy_linux_args[ventoy_linux_argc + (LINUX_MAX_ARGC / 2) ] = grub_strdup(argv[i]);
ventoy_linux_argc++;
}
vtdebug = grub_env_get("vtdebug_flag");
if (vtdebug && vtdebug[0])
{
ventoy_debug = 1;
}
if (ventoy_debug) grub_printf("ventoy set boot opt %d\n", ventoy_linux_argc);
return 0;
}
static grub_err_t
grub_cmd_unset_boot_opt (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
int i;
(void)argc;
(void)argv;
for (i = 0; i < LINUX_MAX_ARGC; i++)
{
if (ventoy_linux_args[i])
{
grub_free(ventoy_linux_args[i]);
}
}
ventoy_debug = 0;
ventoy_linux_argc = 0;
ventoy_initrd_called = 0;
grub_memset(ventoy_linux_args, 0, sizeof(char *) * LINUX_MAX_ARGC);
return 0;
}
static grub_err_t
grub_cmd_extra_initrd_append (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
@ -1576,6 +1530,92 @@ ventoy_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
return grub_cmd_initrd(cmd, ventoy_extra_initrd_num, ventoy_extra_initrd_list);
}
static grub_err_t
grub_cmd_set_boot_opt (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
int i;
const char *vtdebug;
grub_command_t regcmd;
for (i = 0; i < argc; i++)
{
ventoy_linux_args[ventoy_linux_argc + (LINUX_MAX_ARGC / 2) ] = grub_strdup(argv[i]);
ventoy_linux_argc++;
}
vtdebug = grub_env_get("vtdebug_flag");
if (vtdebug && vtdebug[0])
{
ventoy_debug = 1;
}
if (ventoy_debug) grub_printf("ventoy set boot opt %d\n", ventoy_linux_argc);
ventoy_linux16_func = ventoy_initrd16_func = NULL;
regcmd = grub_command_find("linux16");
if (regcmd)
{
ventoy_linux16_func = regcmd->func;
regcmd->func = grub_cmd_linux;
}
regcmd = grub_command_find("initrd16");
if (regcmd)
{
ventoy_initrd16_func = regcmd->func;
regcmd->func = ventoy_cmd_initrd;
}
return 0;
}
static grub_err_t
grub_cmd_unset_boot_opt (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
int i;
grub_command_t regcmd;
(void)argc;
(void)argv;
for (i = 0; i < LINUX_MAX_ARGC; i++)
{
if (ventoy_linux_args[i])
{
grub_free(ventoy_linux_args[i]);
}
}
ventoy_debug = 0;
ventoy_linux_argc = 0;
ventoy_initrd_called = 0;
grub_memset(ventoy_linux_args, 0, sizeof(char *) * LINUX_MAX_ARGC);
if (ventoy_linux16_func)
{
regcmd = grub_command_find("linux16");
if (regcmd)
{
regcmd->func = ventoy_linux16_func;
}
ventoy_linux16_func = NULL;
}
if (ventoy_initrd16_func)
{
regcmd = grub_command_find("initrd16");
if (regcmd)
{
regcmd->func = ventoy_initrd16_func;
}
ventoy_initrd16_func = NULL;
}
return 0;
}
static grub_command_t cmd_linux, cmd_initrd, cmd_linuxefi, cmd_initrdefi;
static grub_command_t cmd_set_bootopt, cmd_unset_bootopt, cmd_extra_initrd_append, cmd_extra_initrd_reset;