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hos: pkg2: rename ini1 value offset

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And simplify the logic a bit.
This commit is contained in:
CTCaer
2023-10-12 07:26:55 +03:00
parent d1be18821d
commit c828539544
5 changed files with 45 additions and 66 deletions
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16
bootloader/hos/pkg2.c
View File

@@ -34,7 +34,7 @@
extern hekate_config h_cfg;
extern const u8 package2_keyseed[];
u32 pkg2_newkern_ini1_val;
u32 pkg2_newkern_ini1_info;
u32 pkg2_newkern_ini1_start;
u32 pkg2_newkern_ini1_end;
@@ -190,7 +190,7 @@ static u32 _pkg2_calc_kip1_size(pkg2_kip1_t *kip1)
void pkg2_get_newkern_info(u8 *kern_data)
{
u32 pkg2_newkern_ini1_off = 0;
pkg2_newkern_ini1_info = 0;
pkg2_newkern_ini1_start = 0;
// Find static OP offset that is close to INI1 offset.
@@ -199,7 +199,7 @@ void pkg2_get_newkern_info(u8 *kern_data)
{
if (*(u32 *)(kern_data + 0x100 - counter_ops) == PKG2_NEWKERN_GET_INI1_HEURISTIC)
{
pkg2_newkern_ini1_off = 0x100 - counter_ops + 12; // OP found. Add 12 for the INI1 offset.
pkg2_newkern_ini1_info = 0x100 - counter_ops + 12; // OP found. Add 12 for the INI1 offset.
break;
}
@@ -210,11 +210,11 @@ void pkg2_get_newkern_info(u8 *kern_data)
if (!counter_ops)
return;
u32 info_op = *(u32 *)(kern_data + pkg2_newkern_ini1_off);
pkg2_newkern_ini1_val = ((info_op & 0xFFFF) >> 3) + pkg2_newkern_ini1_off; // Parse ADR and PC.
u32 info_op = *(u32 *)(kern_data + pkg2_newkern_ini1_info);
pkg2_newkern_ini1_info += ((info_op & 0xFFFF) >> 3); // Parse ADR and PC.
pkg2_newkern_ini1_start = *(u32 *)(kern_data + pkg2_newkern_ini1_val);
pkg2_newkern_ini1_end = *(u32 *)(kern_data + pkg2_newkern_ini1_val + 0x8);
pkg2_newkern_ini1_start = *(u32 *)(kern_data + pkg2_newkern_ini1_info);
pkg2_newkern_ini1_end = *(u32 *)(kern_data + pkg2_newkern_ini1_info + 0x8);
}
bool pkg2_parse_kips(link_t *info, pkg2_hdr_t *pkg2, bool *new_pkg2)
@@ -790,7 +790,7 @@ DPRINTF("%s @ %08X (%08X)\n", is_meso ? "Mesosphere": "kernel",(u32)ctxt->kernel
else
{
// Set new INI1 offset to kernel.
*(u32 *)(pdst + (is_meso ? 8 : pkg2_newkern_ini1_val)) = kernel_size;
*(u32 *)(pdst + (is_meso ? 8 : pkg2_newkern_ini1_info)) = kernel_size;
// Build INI1 for new Package2.
kernel_size += _pkg2_ini1_build(pdst + kernel_size, hdr, kips_info, ctxt->new_pkg2);

5
bootloader/hos/pkg2.h
View File

@@ -28,12 +28,13 @@
#define INI1_MAGIC 0x31494E49
//! TODO: Update on kernel change if needed.
#define PKG2_NEWKERN_GET_INI1_HEURISTIC 0xD2800015 // Offset of OP + 12 is the INI1 offset.
// Offset of OP + 12 is the INI1 offset. On v2 with dynamic crt0 it's + 16.
#define PKG2_NEWKERN_GET_INI1_HEURISTIC 0xD2800015
#define PKG2_NEWKERN_START 0x800
#define ATM_MESOSPHERE 0x3053534D
extern u32 pkg2_newkern_ini1_val;
extern u32 pkg2_newkern_ini1_info;
extern u32 pkg2_newkern_ini1_start;
extern u32 pkg2_newkern_ini1_end;