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When loading dso without PT_GNU_STACK phdr, only call
__pthread_map_stacks_exec() on architectures that allow executable stacks. Reported and tested by: marcel (ia64)
This commit is contained in:
parent
f1410015f0
commit
cb38d4941c
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=217851
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@ -73,4 +73,7 @@ typedef struct {
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extern void *__tls_get_addr(tls_index *ti);
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#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
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#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
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#endif
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@ -69,4 +69,7 @@ void _rtld_bind_start(void);
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extern void *__tls_get_addr(tls_index *ti);
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#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
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#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
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#endif
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@ -74,4 +74,7 @@ typedef struct {
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extern void *___tls_get_addr(tls_index *ti) __attribute__((__regparm__(1)));
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extern void *__tls_get_addr(tls_index *ti);
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#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
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#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
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#endif
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@ -65,4 +65,7 @@ void call_initfini_pointer(const struct Struct_Obj_Entry *, Elf_Addr);
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extern void *__tls_get_addr(unsigned long module, unsigned long offset);
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#define RTLD_DEFAULT_STACK_PF_EXEC 0
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#define RTLD_DEFAULT_STACK_EXEC 0
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#endif
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@ -101,7 +101,7 @@ map_object(int fd, const char *path, const struct stat *sb)
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phdyn = phinterp = phtls = NULL;
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phdr_vaddr = 0;
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segs = alloca(sizeof(segs[0]) * hdr->e_phnum);
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stack_flags = PF_X | PF_R | PF_W;
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stack_flags = RTLD_DEFAULT_STACK_PF_EXEC | PF_R | PF_W;
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while (phdr < phlimit) {
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switch (phdr->p_type) {
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@ -69,4 +69,7 @@ void _rtld_bind_start(void);
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extern void *__tls_get_addr(tls_index *ti);
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#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
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#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
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#endif
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@ -84,4 +84,7 @@ typedef struct {
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extern void *__tls_get_addr(tls_index* ti);
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#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
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#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
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#endif
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@ -76,4 +76,7 @@ typedef struct {
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extern void *__tls_get_addr(tls_index* ti);
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#define RTLD_DEFAULT_STACK_PF_EXEC PF_X
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#define RTLD_DEFAULT_STACK_EXEC PROT_EXEC
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#endif
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@ -191,7 +191,7 @@ extern Elf_Dyn _DYNAMIC;
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int osreldate, pagesize;
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static int stack_prot = PROT_READ | PROT_WRITE | PROT_EXEC;
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static int stack_prot = PROT_READ | PROT_WRITE | RTLD_DEFAULT_STACK_EXEC;
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static int max_stack_flags;
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/*
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@ -65,4 +65,7 @@ typedef struct {
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extern void *__tls_get_addr(tls_index *ti);
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#define RTLD_DEFAULT_STACK_PF_EXEC 0
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#define RTLD_DEFAULT_STACK_EXEC 0
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#endif
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