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-rw-r--r--arch/alpha/kernel/module.c2
-rw-r--r--arch/arc/kernel/unwind.c4
-rw-r--r--arch/arm/kernel/module-plts.c2
-rw-r--r--arch/avr32/kernel/module.c12
-rw-r--r--arch/ia64/kernel/module.c14
-rw-r--r--arch/metag/kernel/module.c4
-rw-r--r--arch/mips/kernel/vpe.c6
-rw-r--r--arch/parisc/kernel/module.c32
-rw-r--r--arch/powerpc/kernel/module_32.c6
-rw-r--r--arch/s390/kernel/module.c22
-rw-r--r--arch/x86/kernel/livepatch.c29
11 files changed, 56 insertions, 77 deletions
diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c
index 2fd00b7077e4..936bc8f89a67 100644
--- a/arch/alpha/kernel/module.c
+++ b/arch/alpha/kernel/module.c
@@ -160,7 +160,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab,
/* The small sections were sorted to the end of the segment.
The following should definitely cover them. */
- gp = (u64)me->module_core + me->core_size - 0x8000;
+ gp = (u64)me->core_layout.base + me->core_layout.size - 0x8000;
got = sechdrs[me->arch.gotsecindex].sh_addr;
for (i = 0; i < n; i++) {
diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index 5eb707640e9c..0587bf121d11 100644
--- a/arch/arc/kernel/unwind.c
+++ b/arch/arc/kernel/unwind.c
@@ -385,8 +385,8 @@ void *unwind_add_table(struct module *module, const void *table_start,
return NULL;
init_unwind_table(table, module->name,
- module->module_core, module->core_size,
- module->module_init, module->init_size,
+ module->core_layout.base, module->core_layout.size,
+ module->init_layout.base, module->init_layout.size,
table_start, table_size,
NULL, 0);
diff --git a/arch/arm/kernel/module-plts.c b/arch/arm/kernel/module-plts.c
index 097e2e201b9f..0c7efc3446c0 100644
--- a/arch/arm/kernel/module-plts.c
+++ b/arch/arm/kernel/module-plts.c
@@ -32,7 +32,7 @@ struct plt_entries {
static bool in_init(const struct module *mod, u32 addr)
{
- return addr - (u32)mod->module_init < mod->init_size;
+ return addr - (u32)mod->init_layout.base < mod->init_layout.size;
}
u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val)
diff --git a/arch/avr32/kernel/module.c b/arch/avr32/kernel/module.c
index 164efa009e5b..2b4c54c04cb6 100644
--- a/arch/avr32/kernel/module.c
+++ b/arch/avr32/kernel/module.c
@@ -118,9 +118,9 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
* Increase core size to make room for GOT and set start
* offset for GOT.
*/
- module->core_size = ALIGN(module->core_size, 4);
- module->arch.got_offset = module->core_size;
- module->core_size += module->arch.got_size;
+ module->core_layout.size = ALIGN(module->core_layout.size, 4);
+ module->arch.got_offset = module->core_layout.size;
+ module->core_layout.size += module->arch.got_size;
return 0;
@@ -177,7 +177,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
if (!info->got_initialized) {
Elf32_Addr *gotent;
- gotent = (module->module_core
+ gotent = (module->core_layout.base
+ module->arch.got_offset
+ info->got_offset);
*gotent = relocation;
@@ -255,8 +255,8 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
*/
pr_debug("GOTPC: PC=0x%x, got_offset=0x%lx, core=0x%p\n",
relocation, module->arch.got_offset,
- module->module_core);
- relocation -= ((unsigned long)module->module_core
+ module->core_layout.base);
+ relocation -= ((unsigned long)module->core_layout.base
+ module->arch.got_offset);
*location = relocation;
break;
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index b15933c31b2f..6ab0ae7d6535 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -486,13 +486,13 @@ module_frob_arch_sections (Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, char *secstrings,
static inline int
in_init (const struct module *mod, uint64_t addr)
{
- return addr - (uint64_t) mod->module_init < mod->init_size;
+ return addr - (uint64_t) mod->init_layout.base < mod->init_layout.size;
}
static inline int
in_core (const struct module *mod, uint64_t addr)
{
- return addr - (uint64_t) mod->module_core < mod->core_size;
+ return addr - (uint64_t) mod->core_layout.base < mod->core_layout.size;
}
static inline int
@@ -675,7 +675,7 @@ do_reloc (struct module *mod, uint8_t r_type, Elf64_Sym *sym, uint64_t addend,
break;
case RV_BDREL:
- val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core);
+ val -= (uint64_t) (in_init(mod, val) ? mod->init_layout.base : mod->core_layout.base);
break;
case RV_LTV:
@@ -810,15 +810,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind
* addresses have been selected...
*/
uint64_t gp;
- if (mod->core_size > MAX_LTOFF)
+ if (mod->core_layout.size > MAX_LTOFF)
/*
* This takes advantage of fact that SHF_ARCH_SMALL gets allocated
* at the end of the module.
*/
- gp = mod->core_size - MAX_LTOFF / 2;
+ gp = mod->core_layout.size - MAX_LTOFF / 2;
else
- gp = mod->core_size / 2;
- gp = (uint64_t) mod->module_core + ((gp + 7) & -8);
+ gp = mod->core_layout.size / 2;
+ gp = (uint64_t) mod->core_layout.base + ((gp + 7) & -8);
mod->arch.gp = gp;
DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp);
}
diff --git a/arch/metag/kernel/module.c b/arch/metag/kernel/module.c
index 986331cd0a52..bb8dfba9a763 100644
--- a/arch/metag/kernel/module.c
+++ b/arch/metag/kernel/module.c
@@ -176,8 +176,8 @@ static uint32_t do_plt_call(void *location, Elf32_Addr val,
tramp[1] = 0xac000001 | ((val & 0x0000ffff) << 3);
/* Init, or core PLT? */
- if (location >= mod->module_core
- && location < mod->module_core + mod->core_size)
+ if (location >= mod->core_layout.base
+ && location < mod->core_layout.base + mod->core_layout.size)
entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
else
entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 9067b651c7a2..544ea21bfef9 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -205,11 +205,11 @@ static void layout_sections(struct module *mod, const Elf_Ehdr *hdr,
|| s->sh_entsize != ~0UL)
continue;
s->sh_entsize =
- get_offset((unsigned long *)&mod->core_size, s);
+ get_offset((unsigned long *)&mod->core_layout.size, s);
}
if (m == 0)
- mod->core_text_size = mod->core_size;
+ mod->core_layout.text_size = mod->core_layout.size;
}
}
@@ -641,7 +641,7 @@ static int vpe_elfload(struct vpe *v)
layout_sections(&mod, hdr, sechdrs, secstrings);
}
- v->load_addr = alloc_progmem(mod.core_size);
+ v->load_addr = alloc_progmem(mod.core_layout.size);
if (!v->load_addr)
return -ENOMEM;
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 3c63a820fcda..b9d75d9fa9ac 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -42,9 +42,9 @@
* We are not doing SEGREL32 handling correctly. According to the ABI, we
* should do a value offset, like this:
* if (in_init(me, (void *)val))
- * val -= (uint32_t)me->module_init;
+ * val -= (uint32_t)me->init_layout.base;
* else
- * val -= (uint32_t)me->module_core;
+ * val -= (uint32_t)me->core_layout.base;
* However, SEGREL32 is used only for PARISC unwind entries, and we want
* those entries to have an absolute address, and not just an offset.
*
@@ -100,14 +100,14 @@
* or init pieces the location is */
static inline int in_init(struct module *me, void *loc)
{
- return (loc >= me->module_init &&
- loc <= (me->module_init + me->init_size));
+ return (loc >= me->init_layout.base &&
+ loc <= (me->init_layout.base + me->init_layout.size));
}
static inline int in_core(struct module *me, void *loc)
{
- return (loc >= me->module_core &&
- loc <= (me->module_core + me->core_size));
+ return (loc >= me->core_layout.base &&
+ loc <= (me->core_layout.base + me->core_layout.size));
}
static inline int in_local(struct module *me, void *loc)
@@ -367,13 +367,13 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
}
/* align things a bit */
- me->core_size = ALIGN(me->core_size, 16);
- me->arch.got_offset = me->core_size;
- me->core_size += gots * sizeof(struct got_entry);
+ me->core_layout.size = ALIGN(me->core_layout.size, 16);
+ me->arch.got_offset = me->core_layout.size;
+ me->core_layout.size += gots * sizeof(struct got_entry);
- me->core_size = ALIGN(me->core_size, 16);
- me->arch.fdesc_offset = me->core_size;
- me->core_size += fdescs * sizeof(Elf_Fdesc);
+ me->core_layout.size = ALIGN(me->core_layout.size, 16);
+ me->arch.fdesc_offset = me->core_layout.size;
+ me->core_layout.size += fdescs * sizeof(Elf_Fdesc);
me->arch.got_max = gots;
me->arch.fdesc_max = fdescs;
@@ -391,7 +391,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
BUG_ON(value == 0);
- got = me->module_core + me->arch.got_offset;
+ got = me->core_layout.base + me->arch.got_offset;
for (i = 0; got[i].addr; i++)
if (got[i].addr == value)
goto out;
@@ -409,7 +409,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
#ifdef CONFIG_64BIT
static Elf_Addr get_fdesc(struct module *me, unsigned long value)
{
- Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset;
+ Elf_Fdesc *fdesc = me->core_layout.base + me->arch.fdesc_offset;
if (!value) {
printk(KERN_ERR "%s: zero OPD requested!\n", me->name);
@@ -427,7 +427,7 @@ static Elf_Addr get_fdesc(struct module *me, unsigned long value)
/* Create new one */
fdesc->addr = value;
- fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset;
+ fdesc->gp = (Elf_Addr)me->core_layout.base + me->arch.got_offset;
return (Elf_Addr)fdesc;
}
#endif /* CONFIG_64BIT */
@@ -839,7 +839,7 @@ register_unwind_table(struct module *me,
table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr;
end = table + sechdrs[me->arch.unwind_section].sh_size;
- gp = (Elf_Addr)me->module_core + me->arch.got_offset;
+ gp = (Elf_Addr)me->core_layout.base + me->arch.got_offset;
DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n",
me->arch.unwind_section, table, end, gp);
diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c
index c94d2e018d84..2c01665eb410 100644
--- a/arch/powerpc/kernel/module_32.c
+++ b/arch/powerpc/kernel/module_32.c
@@ -188,8 +188,8 @@ static uint32_t do_plt_call(void *location,
pr_debug("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
/* Init, or core PLT? */
- if (location >= mod->module_core
- && location < mod->module_core + mod->core_size)
+ if (location >= mod->core_layout.base
+ && location < mod->core_layout.base + mod->core_layout.size)
entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
else
entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
@@ -296,7 +296,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
}
#ifdef CONFIG_DYNAMIC_FTRACE
module->arch.tramp =
- do_plt_call(module->module_core,
+ do_plt_call(module->core_layout.base,
(unsigned long)ftrace_caller,
sechdrs, module);
#endif
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 0c1a679314dd..7873e171457c 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -159,11 +159,11 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
/* Increase core size by size of got & plt and set start
offsets for got and plt. */
- me->core_size = ALIGN(me->core_size, 4);
- me->arch.got_offset = me->core_size;
- me->core_size += me->arch.got_size;
- me->arch.plt_offset = me->core_size;
- me->core_size += me->arch.plt_size;
+ me->core_layout.size = ALIGN(me->core_layout.size, 4);
+ me->arch.got_offset = me->core_layout.size;
+ me->core_layout.size += me->arch.got_size;
+ me->arch.plt_offset = me->core_layout.size;
+ me->core_layout.size += me->arch.plt_size;
return 0;
}
@@ -279,7 +279,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
if (info->got_initialized == 0) {
Elf_Addr *gotent;
- gotent = me->module_core + me->arch.got_offset +
+ gotent = me->core_layout.base + me->arch.got_offset +
info->got_offset;
*gotent = val;
info->got_initialized = 1;
@@ -302,7 +302,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
rc = apply_rela_bits(loc, val, 0, 64, 0);
else if (r_type == R_390_GOTENT ||
r_type == R_390_GOTPLTENT) {
- val += (Elf_Addr) me->module_core - loc;
+ val += (Elf_Addr) me->core_layout.base - loc;
rc = apply_rela_bits(loc, val, 1, 32, 1);
}
break;
@@ -315,7 +315,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
case R_390_PLTOFF64: /* 16 bit offset from GOT to PLT. */
if (info->plt_initialized == 0) {
unsigned int *ip;
- ip = me->module_core + me->arch.plt_offset +
+ ip = me->core_layout.base + me->arch.plt_offset +
info->plt_offset;
ip[0] = 0x0d10e310; /* basr 1,0; lg 1,10(1); br 1 */
ip[1] = 0x100a0004;
@@ -334,7 +334,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
val - loc + 0xffffUL < 0x1ffffeUL) ||
(r_type == R_390_PLT32DBL &&
val - loc + 0xffffffffULL < 0x1fffffffeULL)))
- val = (Elf_Addr) me->module_core +
+ val = (Elf_Addr) me->core_layout.base +
me->arch.plt_offset +
info->plt_offset;
val += rela->r_addend - loc;
@@ -356,7 +356,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
case R_390_GOTOFF32: /* 32 bit offset to GOT. */
case R_390_GOTOFF64: /* 64 bit offset to GOT. */
val = val + rela->r_addend -
- ((Elf_Addr) me->module_core + me->arch.got_offset);
+ ((Elf_Addr) me->core_layout.base + me->arch.got_offset);
if (r_type == R_390_GOTOFF16)
rc = apply_rela_bits(loc, val, 0, 16, 0);
else if (r_type == R_390_GOTOFF32)
@@ -366,7 +366,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
break;
case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */
case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */
- val = (Elf_Addr) me->module_core + me->arch.got_offset +
+ val = (Elf_Addr) me->core_layout.base + me->arch.got_offset +
rela->r_addend - loc;
if (r_type == R_390_GOTPC)
rc = apply_rela_bits(loc, val, 1, 32, 0);
diff --git a/arch/x86/kernel/livepatch.c b/arch/x86/kernel/livepatch.c
index d1d35ccffed3..92fc1a51f994 100644
--- a/arch/x86/kernel/livepatch.c
+++ b/arch/x86/kernel/livepatch.c
@@ -20,8 +20,6 @@
#include <linux/module.h>
#include <linux/uaccess.h>
-#include <asm/cacheflush.h>
-#include <asm/page_types.h>
#include <asm/elf.h>
#include <asm/livepatch.h>
@@ -38,11 +36,10 @@
int klp_write_module_reloc(struct module *mod, unsigned long type,
unsigned long loc, unsigned long value)
{
- int ret, numpages, size = 4;
- bool readonly;
+ size_t size = 4;
unsigned long val;
- unsigned long core = (unsigned long)mod->module_core;
- unsigned long core_size = mod->core_size;
+ unsigned long core = (unsigned long)mod->core_layout.base;
+ unsigned long core_size = mod->core_layout.size;
switch (type) {
case R_X86_64_NONE:
@@ -69,23 +66,5 @@ int klp_write_module_reloc(struct module *mod, unsigned long type,
/* loc does not point to any symbol inside the module */
return -EINVAL;
- readonly = false;
-
-#ifdef CONFIG_DEBUG_SET_MODULE_RONX
- if (loc < core + mod->core_ro_size)
- readonly = true;
-#endif
-
- /* determine if the relocation spans a page boundary */
- numpages = ((loc & PAGE_MASK) == ((loc + size) & PAGE_MASK)) ? 1 : 2;
-
- if (readonly)
- set_memory_rw(loc & PAGE_MASK, numpages);
-
- ret = probe_kernel_write((void *)loc, &val, size);
-
- if (readonly)
- set_memory_ro(loc & PAGE_MASK, numpages);
-
- return ret;
+ return probe_kernel_write((void *)loc, &val, size);
}
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-03 22:25:48 +0000