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| author | Waldemar Brodkorb <wbx@openadk.org> | 2015-01-26 11:22:42 -0600 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2015-01-26 11:22:42 -0600 |
| commit | f03fbbb009c0df52d363719a592e2ac33577d9a6 (patch) | |
| tree | 01671bcc5099ef304faf5ae86d58bbf32f9d0b7c /ldso | |
| parent | 97dc8cb71d96a4bbfda0aa51740433d5da825b6a (diff) | |
| parent | 92de8a5f6ffb1ff9f7183fd08d872aa098b75ae2 (diff) | |
merge upstream changes
Diffstat (limited to 'ldso')
| -rw-r--r-- | ldso/ldso/xtensa/dl-startup.h | 20 | ||||
| -rw-r--r-- | ldso/ldso/xtensa/dl-sysdep.h | 24 | ||||
| -rw-r--r-- | ldso/ldso/xtensa/resolve.S | 7 |
3 files changed, 42 insertions, 9 deletions
diff --git a/ldso/ldso/xtensa/dl-startup.h b/ldso/ldso/xtensa/dl-startup.h index 70a6255d9..8fe54a3c7 100644 --- a/ldso/ldso/xtensa/dl-startup.h +++ b/ldso/ldso/xtensa/dl-startup.h @@ -83,6 +83,7 @@ do { \ unsigned long l_addr = tpnt->loadaddr; \ Elf32_Word relative_count; \ unsigned long rel_addr; \ + Elf32_Addr prev_got_start = 0, prev_got_end = 0; \ int x; \ \ got_loc = (xtensa_got_location *) \ @@ -93,7 +94,24 @@ do { \ got_start = got_loc[x].offset & ~(PAGE_SIZE - 1); \ got_end = ((got_loc[x].offset + got_loc[x].length + PAGE_SIZE - 1) \ & ~(PAGE_SIZE - 1)); \ - _dl_mprotect ((void *)(got_start + l_addr), got_end - got_start, \ + if (got_end >= prev_got_start && got_start <= prev_got_end) { \ + if (got_end > prev_got_end) \ + prev_got_end = got_end; \ + if (got_start < prev_got_start) \ + prev_got_start = got_start; \ + continue; \ + } else if (prev_got_start != prev_got_end) { \ + _dl_mprotect ((void *)(prev_got_start + l_addr), \ + prev_got_end - prev_got_start, \ + PROT_READ | PROT_WRITE | PROT_EXEC); \ + } \ + prev_got_start = got_start; \ + prev_got_end = got_end; \ + } \ +\ + if (prev_got_start != prev_got_end) { \ + _dl_mprotect ((void *)(prev_got_start + l_addr), \ + prev_got_end - prev_got_start, \ PROT_READ | PROT_WRITE | PROT_EXEC); \ } \ \ diff --git a/ldso/ldso/xtensa/dl-sysdep.h b/ldso/ldso/xtensa/dl-sysdep.h index 148de5b95..d308237d3 100644 --- a/ldso/ldso/xtensa/dl-sysdep.h +++ b/ldso/ldso/xtensa/dl-sysdep.h @@ -36,6 +36,7 @@ typedef struct xtensa_got_location_struct { do { \ xtensa_got_location *got_loc; \ Elf32_Addr l_addr = MODULE->loadaddr; \ + Elf32_Addr prev_got_start = 0, prev_got_end = 0; \ int x; \ \ got_loc = (xtensa_got_location *) \ @@ -47,7 +48,28 @@ typedef struct xtensa_got_location_struct { got_start = got_loc[x].offset & ~(PAGE_SIZE - 1); \ got_end = ((got_loc[x].offset + got_loc[x].length + PAGE_SIZE - 1) \ & ~(PAGE_SIZE - 1)); \ - _dl_mprotect ((void *)(got_start + l_addr) , got_end - got_start, \ + if (got_end >= prev_got_start && got_start <= prev_got_end) \ + { \ + if (got_end > prev_got_end) \ + prev_got_end = got_end; \ + if (got_start < prev_got_start) \ + prev_got_start = got_start; \ + continue; \ + } \ + else if (prev_got_start != prev_got_end) \ + { \ + _dl_mprotect ((void *)(prev_got_start + l_addr), \ + prev_got_end - prev_got_start, \ + PROT_READ | PROT_WRITE | PROT_EXEC); \ + } \ + prev_got_start = got_start; \ + prev_got_end = got_end; \ + } \ + \ + if (prev_got_start != prev_got_end) \ + { \ + _dl_mprotect ((void *)(prev_got_start + l_addr), \ + prev_got_end - prev_got_start, \ PROT_READ | PROT_WRITE | PROT_EXEC); \ } \ \ diff --git a/ldso/ldso/xtensa/resolve.S b/ldso/ldso/xtensa/resolve.S index d1ae8aa04..8061af247 100644 --- a/ldso/ldso/xtensa/resolve.S +++ b/ldso/ldso/xtensa/resolve.S @@ -31,13 +31,6 @@ .global _dl_linux_resolve .type _dl_linux_resolve, @function _dl_linux_resolve: - /* Fix up the high 2 bits of the return address. */ - movi a13, 0f - slli a12, a0, 2 -0: extui a13, a13, 30, 2 - ssai 2 - src a12, a13, a12 - /* Call the fixup function. */ movi a8, _dl_linux_resolver callx8 a8 |