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pkg2: ini patches: reduce heap fragmentation/pressure

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This commit is contained in:
CTCaer
2022-01-20 13:31:16 +02:00
parent 781f377083
commit 3b2f438f69
2 changed files with 87 additions and 73 deletions
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63
bootloader/hos/pkg2.c
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@@ -1,6 +1,6 @@
/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018-2021 CTCaer
* Copyright (c) 2018-2022 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -72,17 +72,13 @@ void pkg2_get_ids(kip1_id_t **ids, u32 *entries)
static void parse_external_kip_patches()
{
static bool ext_patches_done = false;
static bool ext_patches_parsed = false;
if (ext_patches_done)
if (ext_patches_parsed)
return;
u32 curr_kip_idx = 0;
char path[64];
strcpy(path, "bootloader/patches.ini");
LIST_INIT(ini_kip_sections);
if (ini_patch_parse(&ini_kip_sections, path))
if (ini_patch_parse(&ini_kip_sections, "bootloader/patches.ini"))
{
// Copy ids into a new patchset.
_kip_id_sets = calloc(sizeof(kip1_id_t), 256); // Max 256 kip ids.
@@ -93,13 +89,15 @@ static void parse_external_kip_patches()
{
kip1_id_t* curr_kip = NULL;
bool found = false;
for (curr_kip_idx = 0; curr_kip_idx < _kip_id_sets_cnt + 1; curr_kip_idx++)
for (u32 curr_kip_idx = 0; curr_kip_idx < _kip_id_sets_cnt + 1; curr_kip_idx++)
{
curr_kip = &_kip_id_sets[curr_kip_idx];
// Check if reached the end of predefined list.
if (!curr_kip->name)
break;
// Check if name and hash match.
if (!strcmp(curr_kip->name, ini_psec->name) && !memcmp(curr_kip->hash, ini_psec->hash, 8))
{
found = true;
@@ -140,23 +138,18 @@ static void parse_external_kip_patches()
if (first_ext_patch)
{
first_ext_patch = false;
patchsets[curr_patchset_idx].name = malloc(strlen(pt->name) + 1);
strcpy(patchsets[curr_patchset_idx].name, pt->name);
patchsets[curr_patchset_idx].name = pt->name;
patchsets[curr_patchset_idx].patches = patches;
}
else
else if (strcmp(pt->name, patchsets[curr_patchset_idx].name))
{
// Check if new patchset name is found and create a new set.
if (strcmp(pt->name, patchsets[curr_patchset_idx].name))
{
curr_patchset_idx++;
curr_patch_idx = 0;
patches = calloc(sizeof(kip1_patch_t), 16); // Max 16 patches per set.
// New patchset name found, create a new set.
curr_patchset_idx++;
curr_patch_idx = 0;
patches = calloc(sizeof(kip1_patch_t), 32); // Max 32 patches per set.
patchsets[curr_patchset_idx].name = malloc(strlen(pt->name) + 1);
strcpy(patchsets[curr_patchset_idx].name, pt->name);
patchsets[curr_patchset_idx].patches = patches;
}
patchsets[curr_patchset_idx].name = pt->name;
patchsets[curr_patchset_idx].patches = patches;
}
if (pt->length)
@@ -164,10 +157,8 @@ static void parse_external_kip_patches()
patches[curr_patch_idx].offset = pt->offset;
patches[curr_patch_idx].length = pt->length;
patches[curr_patch_idx].srcData = malloc(pt->length);
patches[curr_patch_idx].dstData = malloc(pt->length);
memcpy(patches[curr_patch_idx].srcData, pt->srcData, pt->length);
memcpy(patches[curr_patch_idx].dstData, pt->dstData, pt->length);
patches[curr_patch_idx].srcData = (char *)pt->srcData;
patches[curr_patch_idx].dstData = (char *)pt->dstData;
}
else
patches[curr_patch_idx].srcData = malloc(1); // Empty patches check. Keep everything else as 0.
@@ -180,7 +171,7 @@ static void parse_external_kip_patches()
}
}
ext_patches_done = true;
ext_patches_parsed = true;
}
const pkg2_kernel_id_t *pkg2_identify(u8 *hash)
@@ -436,19 +427,11 @@ static int _kipm_inject(const char *kipm_path, char *target_name, pkg2_kip1_info
return 1;
}
static bool ext_patches_parsed = false;
const char* pkg2_patch_kips(link_t *info, char* patchNames)
{
if (patchNames == NULL || patchNames[0] == 0)
return NULL;
if (!ext_patches_parsed)
{
parse_external_kip_patches();
ext_patches_parsed = true;
}
static const u32 MAX_NUM_PATCHES_REQUESTED = sizeof(u32) * 8;
char* patches[MAX_NUM_PATCHES_REQUESTED];
@@ -498,6 +481,16 @@ const char* pkg2_patch_kips(link_t *info, char* patchNames)
DPRINTF("Requested patch: '%s'\n", patches[i]);
}
// Parse external patches if needed.
for (u32 i = 0; i < numPatches; i++)
{
if (strcmp(patches[i], "emummc") && strcmp(patches[i], "nogc"))
{
parse_external_kip_patches();
break;
}
}
u32 shaBuf[32 / sizeof(u32)];
LIST_FOREACH_ENTRY(pkg2_kip1_info_t, ki, info, link)
{