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| author | Julien Thierry <jthierry@redhat.com> | 2020-09-04 16:30:27 +0100 |
|---|---|---|
| committer | Josh Poimboeuf <jpoimboe@redhat.com> | 2020-09-10 10:43:13 -0500 |
| commit | ee819aedf34a8f35cd54ee3967c7beb4d1d4a635 (patch) | |
| tree | 7796908fb5cba3457a49ebba491a119355cdb72a /tools/objtool | |
| parent | 5567c6c39f3404e4492c18c0c1abff5556684f6e (diff) | |
| download | linux-ee819aedf34a8f35cd54ee3967c7beb4d1d4a635.tar.gz linux-ee819aedf34a8f35cd54ee3967c7beb4d1d4a635.tar.bz2 linux-ee819aedf34a8f35cd54ee3967c7beb4d1d4a635.zip | |
objtool: Make unwind hint definitions available to other architectures
Unwind hints are useful to provide objtool with information about stack
states in non-standard functions/code.
While the type of information being provided might be very arch
specific, the mechanism to provide the information can be useful for
other architectures.
Move the relevant unwint hint definitions for all architectures to
see.
[ jpoimboe: REGS_IRET -> REGS_PARTIAL ]
Signed-off-by: Julien Thierry <jthierry@redhat.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Diffstat (limited to 'tools/objtool')
| -rw-r--r-- | tools/objtool/check.c | 4 | ||||
| -rw-r--r-- | tools/objtool/orc_dump.c | 9 | ||||
| -rw-r--r-- | tools/objtool/orc_gen.c | 5 | ||||
| -rwxr-xr-x | tools/objtool/sync-check.sh | 4 |
4 files changed, 15 insertions, 7 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index a94ad88d036c..95c6e0d31c0a 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -14,6 +14,7 @@ #include "warn.h" #include "arch_elf.h" +#include <linux/objtool.h> #include <linux/hashtable.h> #include <linux/kernel.h> #include <linux/static_call_types.h> @@ -1805,7 +1806,8 @@ static int update_cfi_state(struct instruction *insn, struct cfi_state *cfi, return 0; } - if (cfi->type == ORC_TYPE_REGS || cfi->type == ORC_TYPE_REGS_IRET) + if (cfi->type == UNWIND_HINT_TYPE_REGS || + cfi->type == UNWIND_HINT_TYPE_REGS_PARTIAL) return update_cfi_state_regs(insn, cfi, op); switch (op->dest.type) { diff --git a/tools/objtool/orc_dump.c b/tools/objtool/orc_dump.c index fca46e006fc2..5e6a95368d35 100644 --- a/tools/objtool/orc_dump.c +++ b/tools/objtool/orc_dump.c @@ -4,6 +4,7 @@ */ #include <unistd.h> +#include <linux/objtool.h> #include <asm/orc_types.h> #include "objtool.h" #include "warn.h" @@ -37,12 +38,12 @@ static const char *reg_name(unsigned int reg) static const char *orc_type_name(unsigned int type) { switch (type) { - case ORC_TYPE_CALL: + case UNWIND_HINT_TYPE_CALL: return "call"; - case ORC_TYPE_REGS: + case UNWIND_HINT_TYPE_REGS: return "regs"; - case ORC_TYPE_REGS_IRET: - return "iret"; + case UNWIND_HINT_TYPE_REGS_PARTIAL: + return "regs (partial)"; default: return "?"; } diff --git a/tools/objtool/orc_gen.c b/tools/objtool/orc_gen.c index 22fe4398197f..235663b96adc 100644 --- a/tools/objtool/orc_gen.c +++ b/tools/objtool/orc_gen.c @@ -6,6 +6,9 @@ #include <stdlib.h> #include <string.h> +#include <linux/objtool.h> +#include <asm/orc_types.h> + #include "check.h" #include "warn.h" @@ -146,7 +149,7 @@ int create_orc_sections(struct objtool_file *file) struct orc_entry empty = { .sp_reg = ORC_REG_UNDEFINED, .bp_reg = ORC_REG_UNDEFINED, - .type = ORC_TYPE_CALL, + .type = UNWIND_HINT_TYPE_CALL, }; sec = find_section_by_name(file->elf, ".orc_unwind"); diff --git a/tools/objtool/sync-check.sh b/tools/objtool/sync-check.sh index cea1c12607b9..606a4b5e929f 100755 --- a/tools/objtool/sync-check.sh +++ b/tools/objtool/sync-check.sh @@ -6,8 +6,10 @@ if [ -z "$SRCARCH" ]; then exit 1 fi +FILES="include/linux/objtool.h" + if [ "$SRCARCH" = "x86" ]; then -FILES=" +FILES="$FILES arch/x86/include/asm/inat_types.h arch/x86/include/asm/orc_types.h arch/x86/include/asm/emulate_prefix.h |