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e1531466e1
This change updates grub to the 2.04 release. The new release changed how grub is built, so the bootstrap and bootstrap.conf files have to be added to the dist-git. Also, the gitignore file changed so it has to be updated. Since the patches have been forward ported to 2.04, there's no need for a logic to maintain a patch with the delta between the release and the grub master branch. So the release-to-master.patch is dropped and no longer is updated by the do-rebase script. Also since gnulib isn't part of the grub repository anymore and cloned by the boostrap tool, a gnulib tarball is included as other source file and copied before calling the bootstrap tool. That way grub can be built even in builders that only have access to the sources lookaside cache. Resolves: rhbz#1727279 Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
184 lines
5.8 KiB
Diff
184 lines
5.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Tue, 6 Mar 2018 17:11:15 +0100
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Subject: [PATCH] EFI: console: Do not set text-mode until we actually need it
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If we're running with a hidden menu we may never need text mode, so do not
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change the video-mode to text until we actually need it.
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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---
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grub-core/term/efi/console.c | 65 ++++++++++++++++++++++++++++++--------------
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1 file changed, 44 insertions(+), 21 deletions(-)
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diff --git a/grub-core/term/efi/console.c b/grub-core/term/efi/console.c
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index 4840cc59d3f..051633d71e9 100644
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--- a/grub-core/term/efi/console.c
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+++ b/grub-core/term/efi/console.c
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@@ -24,6 +24,11 @@
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#include <grub/efi/api.h>
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#include <grub/efi/console.h>
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+static grub_err_t grub_prepare_for_text_output(struct grub_term_output *term);
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+
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+static int text_mode_available = -1;
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+static int text_colorstate = -1;
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+
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static grub_uint32_t
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map_char (grub_uint32_t c)
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{
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@@ -66,14 +71,14 @@ map_char (grub_uint32_t c)
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}
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static void
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-grub_console_putchar (struct grub_term_output *term __attribute__ ((unused)),
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+grub_console_putchar (struct grub_term_output *term,
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const struct grub_unicode_glyph *c)
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{
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grub_efi_char16_t str[2 + 30];
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grub_efi_simple_text_output_interface_t *o;
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unsigned i, j;
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- if (grub_efi_is_finished)
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+ if (grub_prepare_for_text_output (term))
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return;
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o = grub_efi_system_table->con_out;
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@@ -223,14 +228,15 @@ grub_console_getkey (struct grub_term_input *term)
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}
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static struct grub_term_coordinate
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-grub_console_getwh (struct grub_term_output *term __attribute__ ((unused)))
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+grub_console_getwh (struct grub_term_output *term)
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{
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grub_efi_simple_text_output_interface_t *o;
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grub_efi_uintn_t columns, rows;
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o = grub_efi_system_table->con_out;
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- if (grub_efi_is_finished || efi_call_4 (o->query_mode, o, o->mode->mode,
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- &columns, &rows) != GRUB_EFI_SUCCESS)
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+ if (grub_prepare_for_text_output (term) != GRUB_ERR_NONE ||
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+ efi_call_4 (o->query_mode, o, o->mode->mode,
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+ &columns, &rows) != GRUB_EFI_SUCCESS)
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{
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/* Why does this fail? */
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columns = 80;
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@@ -245,7 +251,7 @@ grub_console_getxy (struct grub_term_output *term __attribute__ ((unused)))
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{
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grub_efi_simple_text_output_interface_t *o;
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- if (grub_efi_is_finished)
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+ if (grub_efi_is_finished || text_mode_available != 1)
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return (struct grub_term_coordinate) { 0, 0 };
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o = grub_efi_system_table->con_out;
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@@ -253,12 +259,12 @@ grub_console_getxy (struct grub_term_output *term __attribute__ ((unused)))
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}
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static void
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-grub_console_gotoxy (struct grub_term_output *term __attribute__ ((unused)),
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+grub_console_gotoxy (struct grub_term_output *term,
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struct grub_term_coordinate pos)
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{
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grub_efi_simple_text_output_interface_t *o;
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- if (grub_efi_is_finished)
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+ if (grub_prepare_for_text_output (term))
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return;
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o = grub_efi_system_table->con_out;
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@@ -271,7 +277,7 @@ grub_console_cls (struct grub_term_output *term __attribute__ ((unused)))
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grub_efi_simple_text_output_interface_t *o;
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grub_efi_int32_t orig_attr;
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- if (grub_efi_is_finished)
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+ if (grub_efi_is_finished || text_mode_available != 1)
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return;
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o = grub_efi_system_table->con_out;
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@@ -291,6 +297,12 @@ grub_console_setcolorstate (struct grub_term_output *term
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if (grub_efi_is_finished)
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return;
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+ if (text_mode_available != 1) {
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+ /* Avoid "color_normal" environment writes causing a switch to textmode */
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+ text_colorstate = state;
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+ return;
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+ }
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+
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o = grub_efi_system_table->con_out;
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switch (state) {
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@@ -315,7 +327,7 @@ grub_console_setcursor (struct grub_term_output *term __attribute__ ((unused)),
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{
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grub_efi_simple_text_output_interface_t *o;
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- if (grub_efi_is_finished)
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+ if (grub_efi_is_finished || text_mode_available != 1)
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return;
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o = grub_efi_system_table->con_out;
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@@ -323,18 +335,38 @@ grub_console_setcursor (struct grub_term_output *term __attribute__ ((unused)),
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}
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static grub_err_t
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-grub_efi_console_output_init (struct grub_term_output *term)
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+grub_prepare_for_text_output(struct grub_term_output *term)
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{
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- grub_efi_set_text_mode (1);
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+ if (grub_efi_is_finished)
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+ return GRUB_ERR_BAD_DEVICE;
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+
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+ if (text_mode_available != -1)
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+ return text_mode_available ? 0 : GRUB_ERR_BAD_DEVICE;
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+
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+ if (! grub_efi_set_text_mode (1))
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+ {
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+ /* This really should never happen */
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+ grub_error (GRUB_ERR_BAD_DEVICE, "cannot set text mode");
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+ text_mode_available = 0;
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+ return GRUB_ERR_BAD_DEVICE;
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+ }
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+
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grub_console_setcursor (term, 1);
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+ if (text_colorstate != -1)
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+ grub_console_setcolorstate (term, text_colorstate);
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+ text_mode_available = 1;
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return 0;
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}
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static grub_err_t
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grub_efi_console_output_fini (struct grub_term_output *term)
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{
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+ if (text_mode_available != 1)
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+ return 0;
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+
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grub_console_setcursor (term, 0);
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grub_efi_set_text_mode (0);
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+ text_mode_available = -1;
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return 0;
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}
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@@ -348,7 +380,6 @@ static struct grub_term_input grub_console_term_input =
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static struct grub_term_output grub_console_term_output =
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{
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.name = "console",
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- .init = grub_efi_console_output_init,
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.fini = grub_efi_console_output_fini,
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.putchar = grub_console_putchar,
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.getwh = grub_console_getwh,
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@@ -364,14 +395,6 @@ static struct grub_term_output grub_console_term_output =
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void
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grub_console_init (void)
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{
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- /* FIXME: it is necessary to consider the case where no console control
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- is present but the default is already in text mode. */
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- if (! grub_efi_set_text_mode (1))
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- {
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- grub_error (GRUB_ERR_BAD_DEVICE, "cannot set text mode");
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- return;
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- }
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-
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grub_term_register_output ("console", &grub_console_term_output);
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grub_term_register_input ("console", &grub_console_term_input);
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}
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