aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--scripts/mod/modpost.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 93bb87d0e17d..fd949770da0c 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1511,8 +1511,7 @@ static int is_executable_section(struct elf_info* elf, unsigned int section_inde
1511 * to know the sizeof(struct exception_table_entry) for the target architecture. 1511 * to know the sizeof(struct exception_table_entry) for the target architecture.
1512 */ 1512 */
1513static unsigned int extable_entry_size = 0; 1513static unsigned int extable_entry_size = 0;
1514static void find_extable_entry_size(const char* const sec, const Elf_Rela* r, 1514static void find_extable_entry_size(const char* const sec, const Elf_Rela* r)
1515 const void* start, const void* cur)
1516{ 1515{
1517 /* 1516 /*
1518 * If we're currently checking the second relocation within __ex_table, 1517 * If we're currently checking the second relocation within __ex_table,
@@ -1523,10 +1522,10 @@ static void find_extable_entry_size(const char* const sec, const Elf_Rela* r,
1523 * seems to go with different sized types. Not pretty but better than 1522 * seems to go with different sized types. Not pretty but better than
1524 * hard-coding the size for every architecture.. 1523 * hard-coding the size for every architecture..
1525 */ 1524 */
1526 if (!extable_entry_size && cur == start + 1 && 1525 if (!extable_entry_size)
1527 strcmp("__ex_table", sec) == 0)
1528 extable_entry_size = r->r_offset * 2; 1526 extable_entry_size = r->r_offset * 2;
1529} 1527}
1528
1530static inline bool is_extable_fault_address(Elf_Rela *r) 1529static inline bool is_extable_fault_address(Elf_Rela *r)
1531{ 1530{
1532 /* 1531 /*
@@ -1541,6 +1540,9 @@ static inline bool is_extable_fault_address(Elf_Rela *r)
1541 (r->r_offset % extable_entry_size == 0)); 1540 (r->r_offset % extable_entry_size == 0));
1542} 1541}
1543 1542
1543#define is_second_extable_reloc(Start, Cur, Sec) \
1544 (((Cur) == (Start) + 1) && (strcmp("__ex_table", (Sec)) == 0))
1545
1544static void report_extable_warnings(const char* modname, struct elf_info* elf, 1546static void report_extable_warnings(const char* modname, struct elf_info* elf,
1545 const struct sectioncheck* const mismatch, 1547 const struct sectioncheck* const mismatch,
1546 Elf_Rela* r, Elf_Sym* sym, 1548 Elf_Rela* r, Elf_Sym* sym,
@@ -1769,7 +1771,8 @@ static void section_rela(const char *modname, struct elf_info *elf,
1769 /* Skip special sections */ 1771 /* Skip special sections */
1770 if (is_shndx_special(sym->st_shndx)) 1772 if (is_shndx_special(sym->st_shndx))
1771 continue; 1773 continue;
1772 find_extable_entry_size(fromsec, &r, start, rela); 1774 if (is_second_extable_reloc(start, rela, fromsec))
1775 find_extable_entry_size(fromsec, &r);
1773 check_section_mismatch(modname, elf, &r, sym, fromsec); 1776 check_section_mismatch(modname, elf, &r, sym, fromsec);
1774 } 1777 }
1775} 1778}
@@ -1828,7 +1831,8 @@ static void section_rel(const char *modname, struct elf_info *elf,
1828 /* Skip special sections */ 1831 /* Skip special sections */
1829 if (is_shndx_special(sym->st_shndx)) 1832 if (is_shndx_special(sym->st_shndx))
1830 continue; 1833 continue;
1831 find_extable_entry_size(fromsec, &r, start, rel); 1834 if (is_second_extable_reloc(start, rel, fromsec))
1835 find_extable_entry_size(fromsec, &r);
1832 check_section_mismatch(modname, elf, &r, sym, fromsec); 1836 check_section_mismatch(modname, elf, &r, sym, fromsec);
1833 } 1837 }
1834} 1838}